Tag Archives: aging

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U.S. Transhumanist Party Discussion Panel on Life Extension – February 18, 2017

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Categories: Politics, Science, Transhumanism, Tags: , , , , , , , , , , , , , , , , , , ,

 

The New Renaissance Hat

Listen to and download the audio recording of this panel discussion at http://rationalargumentator.com/USTP_Life_Extension_Panel.mp3 (right-click to download).

For its second expert panel, the U.S. Transhumanist Party invited Bill Andrews, Aubrey de Grey, Ira Pastor, and Ilia Stambler to discuss life extension and the quest to reverse biological aging through science and technology.

This two-hour panel discussion, moderated by Chairman Gennady Stolyarov II, took place on Saturday, February 18, 2017, at 10 a.m. U.S. Pacific Time. In this interactive venue, many opportunities for fresh discourse arose on the possibility of achieving dramatically greater longevity within our lifetimes. The substance of the discussion begins at 4:25 in the recording.

Questions the panelists considered include the following:

(i) How would you characterize the current state of efforts to reverse senescence / lengthen human lifespans?
(ii) How does progress in the areas of research you have delved into compare to your expectations approximately 10 to 15 years ago?
(iii) What are the most significant challenges and obstacles that you perceive to exist in the way of achieving serious reversal of biological aging?
(iv) What key technologies and methods of delivering treatments to patients would need to be developed in order for longevity escape velocity to be affordably achieved society-wide?
(v) What political reforms and societal / attitudinal changes would you advocate to accelerate the arrival of effective treatments to reverse biological aging and lengthen lifespans?
(vi) Are you concerned about any current political trends and how they might affect the progress of research into combating biological aging?
(vii) What can laypersons who are sympathetic to your goals do in order to hasten their realization? How can the effort to defeat aging become as popular and widely supported as efforts to defeat cancer and ALS are today?
(viii) What lessons can the history of anti-aging research offer to those who seek to advocate and help achieve effective scientific breakthroughs in this area in the coming years and decades?

Become a member of the U.S. Transhumanist Party for free. Apply here.

References

Genetic stabilization of transthyretin, cerebrovascular disease, and life expectancy” – Paper by Louise S. Hornstrup, Ruth Frikke-Schmidt, Børge G. Nordestgaard and Anne Tybjærg-Hansen. Arteriosclerosis, Thrombosis, and Vascular Biology. 2013;33:1441-1447, Originally published May 15, 2013.

Recognizing Degenerative Aging as a Treatable Medical Condition: Methodology and Policy” – Paper by Ilia Stambler. Aging and Disease.

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Panelists

Dr. Bill Andrews is the President and CEO of Sierra Sciences – http://www.sierrasci.com/. As a scientist, athlete, and executive, he continually pushes the envelope and challenges convention. In his 35-year biotech career, he has focused the last 23 years on finding ways to extend the human lifespan and healthspan through telomere maintenance. As one of the principal discoverers of both the RNA and protein components of human telomerase, Dr. Andrews was awarded 2nd place as “National Inventor of the Year” in 1997.

Dr. Aubrey de Grey is the biomedical gerontologist who researched the idea for and founded SENS Research Foundation – http://www.sens.org/. He received his BA in Computer Science and Ph.D. in Biology from the University of Cambridge in 1985 and 2000, respectively. Dr. de Grey is Editor-in-Chief of Rejuvenation Research, is a Fellow of both the Gerontological Society of America and the American Aging Association, and sits on the editorial and scientific advisory boards of numerous journals and organizations.

Ira Pastor has 30 years of experience across multiple sectors of the pharmaceutical industry, including pharmaceutical commercialization, biotech drug development, managed care, distribution, OTC, and retail. He is the CEO of BioQuark, Inc. – http://www.bioquark.com/ – and Executive Chairman of ReAnima Advanced Biosciences – https://reanima.tech/.

Dr. Ilia Stambler is a researcher at Bar Ilan University, Israel. His research focuses on the historical and social implications of aging and life-extension research. He is the author of A History of Life-extensionism in the Twentieth Century – www.longevityhistory.com. He is actively involved in advocacy for aging and longevity research – www.longevityforall.org.

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UNITY Biotechnology Raises $116M for Senescent Cell Clearance Development – Article by Reason

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Categories: Science, Transhumanism, Tags: , , , , , , , , , , , , , , , , ,

The New Renaissance HatReason
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The whispers of late have had it that UNITY Biotechnology was out raising a large round of venture funding, and their latest press release shows that this was indeed the case. The company, as you might recall, is arguably the more mainstream of the current batch of startups targeting the clearance of senescent cells as a rejuvenation therapy. The others include Oisin Biotechnologies, SIWA Therapeutics, and Everon Biosciences, all with different technical approaches to the challenge. UNITY Biotechnology is characterized by a set of high profile relationships with noted laboratories, venture groups, and big names in the field, and, based on the deals they are doing, appear to be focused on building a fairly standard drug development pipeline: repurposing of apoptosis-inducing drug candidates from the cancer research community to clear senescent cells, something that is being demonstrated with various drug classes by a range of research groups of late. Senescent cells are primed to apoptosis, so a nudge in that direction provided to all cells in the body will have little to no effect on normal cells, but tip a fair proportion of senescent cells into self-destruction. Thus the UNITY Biotechnology principals might be said to be following the standard playbook to build the profile of a hot new drug company chasing a hot new opportunity, and clearly they are doing it fairly well so far.

UNITY Biotechnology Announces $116 Million Series B Financing

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UNITY Biotechnology, Inc. (“UNITY”), a privately held biotechnology company creating therapeutics that prevent, halt, or reverse numerous diseases of aging, today announced the closing of a $116 million Series B financing. The UNITY Series B financing ranks among the largest private financings in biotech history and features new investments from longtime life science investors ARCH Venture Partners, Baillie Gifford, Fidelity Management and Research Company, Partner Fund Management, and Venrock. Other investors include Bezos Expeditions (the investment vehicle of Jeff Bezos) and existing investors WuXi PharmaTech and Mayo Clinic Ventures. Proceeds from this financing will be used to expand ongoing research programs in cellular senescence and advance the first preclinical programs into human trials.

The financing announcement follows the publication of research that further demonstrates the central role of senescent cells in disease. The paper, written by UNITY co-founders Judith Campisi and Jan van Deursen and published today, describes the central role of senescent cells in atherosclerotic disease and demonstrates that the selective elimination of senescent cells holds the promise of treating atherosclerosis in humans. In animal models of both early and late disease, the authors show that selective elimination of senescent cells inhibits the growth of atherosclerotic plaque, reduces inflammation, and alters the structural characteristics of plaque such that higher-risk “unstable” lesions take on the structural features of lower-risk “stable” lesions. “This newly published work adds to the growing body of evidence supporting the role of cellular senescence in aging and demonstrates that the selective elimination of senescent cells is a promising therapeutic paradigm to treat diseases of aging and extend healthspan. We believe that we have line of sight to slow, halt, or even reverse numerous diseases of aging, and we look forward to starting clinical trials with our first drug candidates in the near future.”

So this, I think, bodes very well for the next few years of rejuvenation research. It indicates that at least some of the biotechnology venture community understands the likely true size of the market for rejuvenation therapies, meaning every human being much over the age of 30. It also demonstrates that there is a lot of for-profit money out there for people with credible paths to therapies to treat the causes of aging. It remains frustrating, of course, that it is very challenging to raise sufficient non-profit funds to push existing research in progress to the point at which companies can launch. This is a problem throughout the medical research and development community, but it is especially pronrounced when it comes to aging. The SENS view of damage repair, which has long incorporated senescent cell clearance, is an even tinier and harder sell within the aging research portfolio – but one has to hope that funding events like this will go some way to turn that around.

From the perspective of being an investor in Oisin Biotechnologies, I have to say that this large and very visible flag planted out there by the UNITY team is very welcome. The Oisin team should be able to write their own ticket for their next round of fundraising, given that the gene therapy technology they are working on has every appearance of being a superior option in comparison to the use of apoptosis-inducing drugs: more powerful, more configurable, and more adaptable. When you are competing in a new marketplace, there is no such thing as too much validation. The existence of well-regarded, well-funded competitors is just about the best sort of validation possible. Well-funded competitors who put out peer-reviewed studies on a regular basis to show that the high-level approach you and they are both taking works really well is just icing on the cake. Everyone should have it so easy. So let the games commence! Competition always drives faster progress. Whether or not I had skin in this game, it would still be exciting news. The development of rejuvenation therapies is a game in which we all win together, when new treatments come to the clinic, or we all lose together, because that doesn’t happen fast enough. We can and should all of us be cheering on all of the competitors in this race. The quality and availability of the outcome is all that really matters in the long term. Money comes and goes, but life and health is something to be taken much more seriously.

Now with all of that said, one interesting item to ponder in connection to this round of funding for UNITY is the degree to which it reflects the prospects for cancer therapies rather than the prospects for rejuvenation in the eyes of the funding organizations. In other words, am I being overly optimistic in reading this as a greater understanding of the potential for rejuvenation research in the eyes of the venture community? It might be the case that the portions of the venture community involved here understand the market for working cancer drugs pretty well, and consider that worth investing in, with the possibility of human rejuvenation as an added bonus, but not one that is valued appropriately in their minds. Consider that UNITY Biotechnology has partnered with a noted cancer therapeutics company, and that the use of drugs to inducing apoptosis is a fairly well established approach to building cancer treatments. That is in fact why there even exists a range of apoptosis-inducing drugs and drug candidates for those interested in building senescent cell clearance therapies to pick through. Further, the presence of large numbers of senescent cells does in fact drive cancer, and modulating their effects (or removing them) to temper cancer progress is a topic under exploration in the cancer research community. So a wager on a new vision, or a wager on the present market? It is something to think about.

Reason is the founder of The Longevity Meme (now Fight Aging!). He saw the need for The Longevity Meme in late 2000, after spending a number of years searching for the most useful contribution he could make to the future of healthy life extension. When not advancing the Longevity Meme or Fight Aging!, Reason works as a technologist in a variety of industries.
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This work is reproduced here in accord with a Creative Commons Attribution license. It was originally published on FightAging.org.

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An Example of the Glaring Lack of Ambition in Aging Research – Post by Reason

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The New Renaissance HatReason
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The mainstream of aging research, at least in public, is characterized by a profound lack of ambition when it comes to treating aging as a medical condition. Researchers talk about slightly altering the trajectory of aging as though that is the absolute most that is possible, the summit of the mountain, and are in many cases ambivalent when it comes to advocating for even that minimal goal. It is this state of affairs that drove Aubrey de Grey and others into taking up advocacy and research, given that there are clear paths ahead to rejuvenation, not just a slight slowing of aging, but halting and reversing the causes of aging. Arguably embracing rejuvenation research programs would in addition cost less and take a much shorter span of time to produce results, since these programs are far more comprehensively mapped out than are efforts to produce drugs to alter the complex operations of metabolism so as to slightly slow the pace at which aging progresses. It is most frustrating to live in a world in which this possibility exists, yet is still a minority concern in the research community. This article is an example of the problem, in which an eminent researcher in the field takes a look at a few recently published books on aging research, and along the way reveals much about his own views on aging as an aspect of the human condition that needs little in the way of a solution. It is a terrible thing that people of this ilk are running the institutes and the funding bodies: this is a field crying out for disruption and revolution in the name of faster progress towards an end to aging.

How can we overcome our niggling suspicion that there is something dubious, if not outright wrong, about wanting to live longer, healthier lives? And how might we pursue longer lives without at the same time falling prey to quasiscientific hype announcing imminent breakthroughs? In order to understand why aging is changing, and what this means for our futures, we need to learn more about the aging process itself. As a biologist who specializes in aging, I have spent more than four decades on a quest to do exactly this. Not only have I asked why aging should occur at all (my answer is encapsulated in a concept called disposability theory), but I have also sought to understand the fastest-growing segment of the population – those aged 85 and above. The challenges inherent in understanding and tackling the many dimensions of aging are reflected in a clutch of new books on the topic. Are these books worth reading? Yes and no. They take on questions like: Can we expect increases in human longevity to continue? Can we speed them up? And, on the personal level, what can we do to make our own lives longer and healthier? If nothing else, these books and their varied approaches reveal how little we actually know.

To find out more about factors that can influence our individual health trajectories across ever-lengthening lives, my colleagues and I began, in 2006, the remarkable adventure of the still ongoing Newcastle 85+ Study, an extremely detailed investigation of the complex medical, biological, and social factors that can affect a person’s journey into the outer reaches of longevity. For each individual, we determined whether they had any of 18 age-related conditions (e.g., arthritis, heart disease, and so on). Sadly, not one of our 85-year-olds was free of such illnesses. Indeed, three quarters of them had four or more diseases simultaneously. Yet, when asked to self-rate their health, an astonishing 78 percent – nearly four out of five – responded “good,” “very good,” or “excellent.” This was not what we had expected. The fact that these individuals had so many age-related illnesses fit, of course, with the popular perception of the very old as sadly compromised. But the corollary to this perception – that in advanced old age life becomes a burden, both to the individuals themselves and to others – was completely overturned. Here were hundreds of old people, of all social classes and backgrounds, enjoying life to the fullest, and apparently not oppressed by their many ailments.

As for my stake in the enterprise, I began investigating aging when I was in my early 20s – well before I had any sense of my own body aging. Quite simply, I was curious. What is this mysterious process, and why does it occur? Everything else in biology seems to be about making things work as well as they can, so how is it that aging destroys us? Now that I am growing older myself, my research helps me understand my own body and reinforces the drive to live healthily – to eat lightly and take exercise – though not at the cost of eliminating life’s pleasures. For all that I have learned about aging, my curiosity remains unabated. Indeed, it has grown stronger, partly because as science discovers more about the process, it reveals that there is ever more to learn, ever greater complexity to unravel, and partly because I am now my own subject: through new physical and psychological experiences in myself, I learn more about what older age is really like. I know all too well that the next phase of my life will bring unwelcome changes, and of course it must end badly. But the participants of the Newcastle 85+ Study have shown me that the journey will not be without interest.

Link: https://lareviewofbooks.org/article/want-live-longer-complicated-relationship-longevity/

Reason is the founder of The Longevity Meme (now Fight Aging!). He saw the need for The Longevity Meme in late 2000, after spending a number of years searching for the most useful contribution he could make to the future of healthy life extension. When not advancing the Longevity Meme or Fight Aging!, Reason works as a technologist in a variety of industries.
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This work is reproduced here in accord with a Creative Commons Attribution license. It was originally published on FightAging.org.

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Criticizing Programmed Theories of Aging – Article by Reason

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The New Renaissance HatReason
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Today I’ll point out an open-access critique of programmed aging theories by the originator of the disposable soma theory of aging, one of the modern views of aging as accumulated damage rather than programming. The question of how and why we age is wrapped in a lot of competing theory, but of great practical importance. Our biochemistry is enormously complex and incompletely mapped, and thus the processes of aging, which is to how exactly our biochemistry changes over time, and all of the relationships that drive that change, are also enormously complex and incompletely mapped. Nonetheless, there are shortcuts that can be taken in the face of ignorance: the fundamental differences between young and old tissue are in fact well cataloged, and thus we can attempt to reverse aging by treating these changes as damage and repairing them. If you’ve read through the SENS rejuvenation research proposals, well, that is the list. The research community may not yet be able to explain and model how exactly this damage progresses, interacts, and spreads from moment to moment, but that effort isn’t necessary to build repair therapies capable of rejuvenation. You don’t need to build a full model of the way in which paint cracks and peels in order to scrub down and repaint a wall, and building that model is a lot most costly than just forging ahead with the painting equipment.

The engineering point of view described above, simply getting on with the job when there is a good expectation of success, is somewhat antithetical to the ethos and culture of the sciences, which instead guides researchers to the primary goal of obtaining full understanding of the systems they study. In practice, of course, every practical application of the life sciences is created in a state of partial ignorance, but the majority of research groups are nonetheless oriented towards improving the grand map of the biochemistry of metabolism and aging rather than doing what can be done today to create rejuvenation therapies. Knowledge over action. If we had all the time in the world this would be a fine and golden ideal. Unfortunately we do not, which places somewhat more weight on making material progress towards the effective treatment of aging as a medical condition – ideally by repairing its causes.

But what are the causes of aging? The majority view in the research community is that aging is a process of damage accumulation. The normal operation of metabolism produces forms of molecular damage in cells and tissues, a sort of biological wear and tear – though of course the concept of wear and tear is somewhat more nuanced and complex in a self-repairing system. This damage includes such things as resilient cross-links that alter the structural properties of the extracellular matrix and toxic metabolic waste that clutters and harms long-lived cells. As damage accumulates, our cells respond in ways that are a mix of helpful and harmful, secondary and later changes that grow into a long chain of consequences and a dysfunctional metabolism that is a long way removed from the well-cataloged fundamental differences between old and young tissues. An old body is a complicated mess of interacting downstream problems. In recent years, however, a growing minority have suggested and theorized that aging is not caused by damage, but is rather a programmed phenomenon – that some portion of the what I just described as the chain of consequences, in particular epigenetic changes, are in fact the root cause of aging. In the programmed view of aging, epigenetic change causes dysfunction and damage, not the other way around. That these two entirely opposite views can exist is only possible because there is no good map of the detailed progression of aging – only disconnected snapshots and puzzle pieces. There is a lot of room to arrange the pieces in any way that can’t be immediately refuted on the basis of well-known past studies.

There are two ways to settle the debate of aging as damage versus aging as evolved program. The first is to produce that grand map of metabolism and aging, something that I suspect is at the least decades and major advances in life science automation removed from where we stand now. The other is to build therapies that produce large degrees of rejuvenation, enough of a difference to put it far beyond argument that the approach taken is the right one. That is not so far away, I believe, as the first SENS rejuvenation therapies are presently in the early stages of commercial development. I think that, even with the comparative lack of funding for this line of development, ten to twenty years from now the question will be settled beyond reasonable doubt. Meanwhile, the programmed-aging faction has become large enough and their positions coherent enough that the mainstream is beginning to respond substantially to their positions; I expect that this sort of debate will continue all the way up to and well past the advent of the first meaningful rejuvenation therapies, which at this point look to be some form of senescent cell clearance.

Can aging be programmed? A critical literature review – by Axel Kowald and Thomas B. L. Kirkwood

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Many people, coming new to the question of why and how aging occurs, are attracted naturally to the idea of a genetic programme. Aging is necessary, it is suggested, either as a means to prevent overcrowding of the species’ environment or to promote evolutionary change by accelerating the turnover of generations. Instead of programmed aging, however, the explanation for why aging occurs is thought to be found among three ideas all based on the principle that within iteroparous species (those that reproduce repeatedly, as opposed to semelparous species, where reproduction occurs in a single bout soon followed by death), the force of natural selection declines throughout the adult lifespan. This decline occurs because at progressively older ages, the fraction of the total expected reproductive output that remains in future, on which selection can act to discriminate between fitter and less-fit genotypes, becomes progressively smaller. Natural selection generally favours the elimination of deleterious genes, but if its force is weakened by age, and because fresh mutations are continuously generated, a mutation-selection balance results. The antagonistic pleiotropy theory suggests that a gene that has a benefit early in life, but is detrimental at later stages of the lifespan, can overall have a net positive effect and will be actively selected. The disposable soma theory is concerned with optimizing the allocation of resources between maintenance on the one hand and other processes such as growth and reproduction on the other hand. An organism that invests a larger fraction of its energy budget in preventing accumulation of damage to its proteins, cells and organs will have a slower rate of aging, but it will also have fewer resources available for growth and reproduction, and vice versa. Mathematical models of this concept show that the optimal investment in maintenance (which maximizes fitness) is always below the fraction that is necessary to prevent aging.

In recent years, there have been a number of publications claiming that the aging process is a genetically programmed trait that has some form of benefit in its own right. If this view were correct, it would be possible experimentally to identify the responsible genes and inhibit or block their action. This idea is, however, diametrically opposed to the mainstream view that aging has no benefit by its own and is therefore not genetically programmed. Because experimental strategies to understand and manipulate the aging process are strongly influenced by which of the two opinions is correct, we have undertaken here a comprehensive analysis of the specific proposals of programmed aging. On the principle that any challenge to the current orthodoxy should be taken seriously, our intention has been to see just how far the various hypotheses could go in building a convincing case for programmed aging.

This debate is not only of theoretical interest but has practical implications for the types of experiments that are performed to examine the mechanistic basis of aging. If there is a genetic programme for aging, there would be genes with the specific function to impair the functioning of the organism, that is to make it old. Under those circumstances, experiments could be designed to identify and inhibit these genes, and hence to modify or even abolish the aging process. However, if aging is nonprogrammed, the situation would be different; the search for genes that actively cause aging would be a waste of effort and it would be too easy to misinterpret the changes in gene expression that occur with aging as primary drivers of the senescent phenotype rather than secondary responses (e.g. responses to molecular and cellular defects). It is evident, of course, that genes influence longevity, but the nature of the relevant genes will be very different according to whether aging is itself programmed or not.

For various programmed theories of aging, we re-implemented computational models, developed new computational models, and analysed mathematical equations. The results fall into three classes. Either the ideas did not work because they are mathematically or conceptually wrong, or programmed death did evolve in the models but only because it granted individuals the ability to move, or programmed death did evolve because it shortened the generation time and thus accelerated the spread of beneficial mutations. The last case is the most interesting, but it is, nevertheless, flawed. It only works if an unrealistically fast-changing environment or an unrealistically high number of beneficial mutations are assumed. Furthermore and most importantly, it only works for an asexual mode of reproduction. If sexual reproduction is introduced into the models, the idea that programmed aging speeds up the spread of advantageous mutations by shortening the generation time does not work at all. The reason is that sexual reproduction enables the generation of offspring that combine the nonaging genotype of one parent with the beneficial mutation(s) found in the other parent. The presence of such ‘cheater’ offspring does not allow the evolution of agents with programmed aging.

In summary, all of the studied proposals for the evolution of programmed aging are flawed. Indeed, an even stronger objection to the idea that aging is driven by a genetic programme is the empirical fact that among the many thousands of individual animals that have been subjected to mutational screens in the search for genes that confer increased lifespan, none has yet been found that abolishes aging altogether. If such aging genes existed as would be implied by programmed aging, they would be susceptible to inactivation by mutation. This strengthens the case to put the emphasis firmly on the logically valid explanations for the evolution of aging based on the declining force of natural selection with chronological age, as recognized more than 60 years ago. The three nonprogrammed theories that are based on this insight (mutation accumulation, antagonistic pleiotropy, and disposable soma) are not mutually exclusive. There is much yet to be understood about the details of why and how the diverse life histories of extant species have evolved, and there are plenty of theoretical and experimental challenges to be met. As we observed earlier, there is a natural attraction to the idea that aging is programmed, because developmental programming underpins so much else in life. Yet aging truly is different from development, even though developmental factors can influence the trajectory of events that play out during the aging process. To interpret the full complexity of the molecular regulation of aging via the nonprogrammed theories of its evolution may be difficult, but to do it using demonstrably flawed concepts of programmed aging will be impossible.

Given that the author here has in the past been among those who dismissed the SENS initiative as an approach to treating aging by repairing damage, it is perhaps a little amusing to see him putting forward points such as this one: “despite the cogent arguments that aging is not programmed, efforts continue to be made to establish the case for programmed aging, with apparent backing from quantitative models. It is important to take such claims seriously, because challenge to the existing orthodoxy is the path by which science often makes progress.” Where was this version of the fellow ten years ago?

Reason is the founder of The Longevity Meme (now Fight Aging!). He saw the need for The Longevity Meme in late 2000, after spending a number of years searching for the most useful contribution he could make to the future of healthy life extension. When not advancing the Longevity Meme or Fight Aging!, Reason works as a technologist in a variety of industries.
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This work is reproduced here in accord with a Creative Commons Attribution license. It was originally published on FightAging.org.

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Towards a Greater Knowledge of Mitochondrial DNA Damage in Aging – Article by Reason

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The New Renaissance HatReason
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Today I’ll point out a very readable scientific commentary on mutations in mitochondrial DNA (mtDNA) and the importance of understanding how these mutations spread within cells. This is a topic of some interest within the field of aging research, as mitochondrial damage and loss of function is very clearly important in the aging process. Mitochondria are, among many other things, the power plants of the cell. They are the evolved descendants of symbiotic bacteria, now fully integrated into our biology, and their primary function is to produce chemical energy store molecules, adenosine triphosphate (ATP), that are used to power cellular operations. Hundreds of mitochondria swarm in every cell, destroyed by quality control processes when damaged, and dividing to make up the numbers. They also tend to promiscuously swap component parts among one another, and sometimes fuse together.

Being the descendants of bacteria, mitochondria have their own DNA, distinct from the nuclear DNA that resides in the cell nucleus. This is a tiny remnant of the original, but a very important remnant, as it encodes a number of proteins that are necessary for the correct operation of the primary method of generating ATP. DNA in cells is constantly damaged by haphazard chemical reactions, and equally it is constantly repaired by a range of very efficient mechanisms. Unfortunately mitochondrial DNA isn’t as robustly defended as nuclear DNA. Equally unfortunately, some forms of mutation, such as deletions, seem able to rapidly spread throughout the mitochondrial population of a single cell, even as they make mitochondria malfunction. This means that over time a growing number of cells become overtaken by malfunctioning mitochondria and fall into a state of dysfunction in which they pollute surrounding tissues with reactive molecules. This can, for example, increase the level of oxidized lipids present in the bloodstream, which speeds up the development of atherosclerosis, a leading cause of death at the present time.

The question of how exactly some specific mutations overtake a mitochondrial population so rapidly is still an open one. There is no shortage of sensible theories, for example that it allows mitochondria to replicate more rapidly, or gives them some greater resistance to the processes of quality control that normally cull older, damaged mitochondria. The definitive proof for any one theory has yet to be established, however. In one sense it doesn’t actually matter all that much: there are ways to address this problem through medical technology that don’t require any understanding of how the damage spreads. The SENS Research Foundation, for example, advocates the path of copying mitochondrial genes into the cell nucleus, a gene therapy known as allotopic expression. For so long as the backup genes are generating proteins, and those proteins make it back to the mitochondria, the state of the DNA inside mitochondria doesn’t matter all that much. Everything should still work, and the present contribution of mitochondrial DNA damage to aging and age-related disease would be eliminated. At the present time there are thirteen genes to copy, a couple of which are in commercial development for therapies unrelated to aging, another couple were just this year demonstrated in the lab, and the rest are yet to be done.

Still, the commentary linked below is most interesting if you’d like to know more about the questions surrounding the issue of mitochondrial DNA damage and how it spreads. This is, as noted, a core issue in the aging process. The authors report on recent research on deletion mutations that might sway the debate on how these mutations overtake mitochondrial populations so effectively.

Expanding Our Understanding of mtDNA Deletions

A challenge of mtDNA genetics is the multi-copy nature of the mitochondrial genome in individual cells, such that both normal and mutant mtDNA molecules, including selfish genomes with no advantage for cellular fitness, coexist in a state known as “heteroplasmy.” mtDNA deletions are functionally recessive; high levels of heteroplasmy (more than 60%) are required before a biochemical phenotype appears. In human tissues, we also see a mosaic of cells with respiratory chain deficiency related to different levels of mtDNA deletion. Interestingly, cells with high levels of mtDNA deletions in muscle biopsies show evidence of mitochondrial proliferation, a compensatory mechanism likely triggered by mitochondrial dysfunction. In such circumstances, deleted mtDNA molecules in a given cell will have originated clonally from a single mutant genome. This process is therefore termed “clonal expansion.”

The accumulation of high levels of mtDNA deletions is challenging to explain, especially given that mitophagy should provide quality control to eliminate dysfunctional mitochondria. Studies in human tissues do not allow experimental manipulation, but large-scale mtDNA deletion models in C. elegans have proved to be helpful, showing some conserved characteristics that match the situation in humans, as well as some divergences. Researchers have used a C. elegans strain with a heteroplasmic mtDNA deletion to demonstrate the importance of the mitochondrial unfolded protein response (UPRmt) in allowing clonal expansion of mutant mtDNAs to high heteroplasmy levels. They demonstrate that wild-type mtDNA copy number is tightly regulated, and that the mutant mtDNA molecules hijack endogenous pathways to drive their own replication.

The data suggests that the expansion of mtDNA deletions involves nuclear signaling to upregulate the UPRmt and increase total mtDNA copy number. The nature of the mito-nuclear signal in this C. elegans model may have been the transcription factor ATFS-1 (activating transcription factor associated with stress-1), which fails to be imported by depolarized mitochondria, mediates UPRmt activation by mtDNA deletions. A long-standing hypothesis proposes that deleted mtDNA molecules clonally expand because they replicate more rapidly due to their smaller size. To address this question, researchers examined the behavior of a second, much smaller mtDNA deletion molecule. They found no evidence for a replicative advantage of the smaller genome, and clonal expansion to similar levels as the larger deletion. In human skeletal muscle, mtDNA deletions of different sizes also undergo clonal expansion to the same degree. Furthermore, point mutations that do not change the size of the total mtDNA molecule also successfully expand to deleterious levels, indicating that clonal expansion is not driven by genome size. Thus, similar mechanisms may be operating across organisms. In the worm, this involves mito-nuclear signaling and activation of the UPRmt.

There is some debate over interpretation of results. One paper indicates that UPRmt allows the mutant mtDNA molecules to accumulate by reducing mitophagy. Another demonstrates that the UPRmt induces mitochondrial biogenesis and promotes organelle dynamics (fission and fusion). Both papers show that by downregulating the UPRmt response, mtDNA deletion levels fall, which may allow a therapeutic approach in humans. Could there be a similar mechanism in humans, especially since some features detected in C. elegans are also present in human tissues, including the increase in mitochondrial biogenesis and the lack of relationship between mitochondrial genome size and expansion? It is likely that there will be a similar mechanism to preserve deletions since, as in the worm, deletions persist and accumulate in human tissues, despite an active autophagic quality-control process. Although the UPRmt has not been characterized in humans as it has in the worm, and no equivalent protein to ATFS-1 has been identified in mammals, proteins such as CHOP, HSP-60, ClpP, and mtHSP70 appear to serve similar functions in mammals as those in C. elegans and suggest that a similar mechanism may be present.

Reason is the founder of The Longevity Meme (now Fight Aging!). He saw the need for The Longevity Meme in late 2000, after spending a number of years searching for the most useful contribution he could make to the future of healthy life extension. When not advancing the Longevity Meme or Fight Aging!, Reason works as a technologist in a variety of industries.
This work is reproduced here in accord with a Creative Commons Attribution license. It was originally published on FightAging.org.

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G. Stolyarov II Interviews Demian Zivkovic Regarding the D.N.A. – Gene Therapies Congress

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Categories: Announcements, Science, Transhumanism, Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,

The New Renaissance Hat
G. Stolyarov II and Demian Zivkovic
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Mr. Stolyarov invited Demian Zivkovic, President of the Institute of Exponential Sciences (IES), to discuss the forthcoming Designing New Advances (D.N.A.) Gene Therapies Congress in Utrecht, The Netherlands.

The interview took place on Sunday, June 19, 2016, at 11 a.m. US Pacific Time. Watch the recording here.

The D.N.A. Congress is scheduled to occur on July 9, 2016, and will feature speakers such as Oliver Medvedik, Aubrey de Grey, Elizabeth Parrish, Keith Comito, and Tatjana Kochetkova. This event receives the strong endorsement of both The Rational Argumentator and the Nevada Transhumanist Party.

Read the announcement of the D. N. A. Congress here.

Contribute to the fundraiser for the D. N. A. Congress on Indiegogo  and Generosity.

DNA_Interview_CoverDemian Zivkovic is the president of the Institute of Exponential Sciences  (Facebook  / Meetup) – an international transhumanist think tank / education institute comprised of a group of transhumanism-oriented scientists, professionals, students, journalists, and entrepreneurs interested in the interdisciplinary approach to advancing exponential technologies and promoting techno-positive thought. He is also an entrepreneur and student of artificial intelligence and innovation sciences and management at the University of Utrecht.

Demian and the IES have been involved in several endeavors, such as organizing lectures on exponential sciences, interviewing experts such as Aubrey de Grey, joining several of Mr. Stolyarov’s futurism panels, and spreading Death is Wrong – Mr. Stolyarov’s illustrated children’s book on indefinite life extension – in The Netherlands.

Demian Zivkovic is a strong proponent of healthy life extension and cognitive augmentation. His interests include hyperreality, morphological freedom advocacy, postgenderism, and hypermodernism. He is currently working on his ambition of raising enough capital to make a real difference in life extension and transhumanist thought.

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D.N.A. Congress Announcement by the Institute of Exponential Sciences

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The New Renaissance HatInstitute of Exponential Sciences
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Editor’s Note: The forthcoming D.N.A. Congress in Utrecht, The Netherlands, hosted by the Institute of Exponential Sciences, devoted to discussions of gene therapies, receives the strong endorsement of both The Rational Argumentator and the Nevada Transhumanist Party. The D.N.A. Congress offers a promising venue to discuss the potential for gene therapies to cure diseases, lengthen lifespans, and improve quality of life for millions of people in the coming years and decades.

~ Gennady Stolyarov II, Editor-in-Chief, The Rational Argumentator, June 5, 2016

D.N.A CONGRESS PRESS RELEASE:

The Institute of Exponential Sciences (IES) has a large announcement to make. We are organising D.N.A – The largest European congress on human gene therapies, featuring speakers such as Aubrey de Grey, Liz Parrish, Oliver Medvedik and others.

Our event has been endorsed by LEAF, Heales VZW, BioViva, SENS Research Foundation, Singularity Network, People Unlimited, The Rational Argumentator, and many others. The event will be covered by national media and will be broadcasted online.

To make this vision a reality, we need your support. Share this message and donate today. Thank you!

IES needs your support to help make this vision a reality. Click here to donate to our crowdfunding campaign.

D.N.A – Designing New Advances: The second large Institute of Exponential Sciences event is coming to Utrecht

 

DNADemian Zivkovic

Utrecht – After a successful event last year in May, the grand congress is ready for a second edition. With a new name, we hope to make exponential sciences more approachable to the general public and bring people in the field closer together. The Institute of Exponential Sciences congress 2016 will be held at RASA podium on the 9th of July. The main theme of the event is gene therapies and cutting-edge applications of such therapies, such as health extension and interventions against human aging. To guarantee a great event, we have invited some of the biggest names in the field. Our guest speakers will be as follows:

Opening the event will be Oliver Medvedik, Ph.D, director of scientific programs at Genspace. Dr. Medvedik has earned his Ph.D at Harvard Medical school in the biomedical and biological sciences program. Since graduating from Harvard, he has worked as a biotechnology consultant, taught molecular biology to numerous undergraduates at Harvard, and mentored two of Harvard’s teams for the international genetically engineered machines competition (IGEM) held annually at M.I.T.

Our second speaker is Aubrey David Nicholas Jasper de Grey, Ph.D, an English author, Chief Science Officer of the SENS Research Foundation, and editor-in-chief of the academic journal Rejuvenation Research. Aubrey de Grey is well known for his focus on regenerative medicine and views on human aging. He will take the stage talking about the applications of current and upcoming technologies and studies which hold the potential to greatly extend our healthy lifespan.

Our third speaker is Tatjana Kochetkova, Ph.D, who is a fellow of the Institute of Exponential Sciences and a bioethicist. Dr. Kochetkova will follow up discussing the ethical and philosophical side of the technology and will address questions of what exponential technologies in biotech mean for society.

Our fourth speaker is Elizabeth Parrish, a fellow of the Institute of Exponential Sciences and the Founder and CEO of BioViva Sciences Inc, a Delaware corporation based in Seattle, WA, with labs and participating clinics in South/Central America where the majority of practical work is carried out. BioViva has been noted for being the first corporation in the world to treat a patient with gene therapy to reverse aging. The woman who wants to genetically engineer you will cover the basics of BioViva’s approach and vision for the the future, as well as the potential that gene therapies hold for radically improving our health and lives in the future.

Our fifth speaker will be Keith Comito, who is the founder and president of the Life Extension Advocacy Foundation (LEAF), a 501(c)(3) non-profit organization and a partner of the Institute of Exponential Sciences. Through LEAF, he operates the crowdfunding platform Lifespan.io, which supports biomedical research aimed at extending healthy human lifespan. He also serves as policy coordinator for the Global Healthspan Policy Institute, which facilitates relationships between researchers and government to advance initiatives in support of healthy life extension.

About Institute of Exponential Sciences

The Institute of Exponential Sciences is an international innovation-oriented think tank, outreach organisation, and networking platform based in the Netherlands, in the city of Utrecht. Its main activities include organising lectures and conferences, providing quality consultancy on innovation and exponential technologies, and collaborating with student organisations and universities in educating the public on the importance of exponential technologies.

It was founded by members of its predecessor, the Arma’thwynn society, which was a student group of like-minded young academics in the Netherlands. After organising events and attracting a very diverse and professional team of entrepreneurs, academics, and journalists, the society decided to move past student politics and make the move towards professionalism.

The Institute of Exponential Sciences is the result of that decision. After organising successful events (the largest of which was their symposium in April, 2015), the Institute of Exponential Sciences formalised its mission and reached out towards a process of international collaboration with other entities which share a techno-positive vision. The institute strives towards excellence in providing the best information and resources related to the issues relevant in the rapidly advancing technological society we live in.

The IES approach is focused on providing interdisciplinary education in the fields of exponential technologies such as artificial intelligence, bio-informatics, gene therapies, 3D-printing, augmented reality, and neural interfacing. We also provide a networking platform which allows entrepreneurs, scientists, journalists, and students to get in touch with others with similar ideas so that they may create the technologies of tomorrow. The IES strives not only to improve the speed of development of these technologies, but also to show the public the amazing possibilities technology provides for society.

IES and the IES logo are either registered trademarks or trademarks of IES Foundation in the Netherlands and/or other countries. All other products and/or services referenced are trademarks of their respective entities.

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A Most Interesting Data Set Covering the Longevity of Polish Elite Athletes Across Much of the 20th Century – Article by Reason

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The New Renaissance HatReason
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Today I noticed an open access paper in which the authors examine mortality data for Polish Olympic athletes over the past 90 years or so, and compare it with established historical data for the general population. This blends two topics that are occasionally covered here at Fight Aging!: firstly, the growth in human life expectancy in recent history and its causes, and secondly the topic of how regular exercise and life expectancy interact. It is the present consensus that elite athletes, those at the top of their profession, live longer than the rest of us, but it remains open to debate as to whether this is because more exercise is better, or because very robust people who would have lived longer anyway are more likely to enter the world of professional athletics. Researchers want to map the dose-response curve for exercise, in other words. Even though there is very good, very solid evidence for the benefits of regular moderate exercise versus being sedentary, going beyond that to a more nuanced view of what more or less exercise does for health is a challenging goal given the starting point of statistical snapshots of data from various study populations.

Studying the history of life expectancy isn’t much easier, though there the challenges tend to revolve around the ever-decreasing quality of data as you look further back in time. The 20th century marked transitions from hopeful aspiration to solid accomplishment in all fields of medicine, too many profound advances in the capabilities of medical science and practice to list here. As the decades passed, this important progress focused ever more on treatments for age-related conditions. An individual born in the US in 1900 suffered through the end of the era of poor control of infectious disease, prior to modern antibiotics and antiviral drugs, and likely benefited little from later progress towards better control of heart disease and other common age-related diseases. An individual born in the US in 1950, on the other hand, enjoyed a youth with comparatively little fear of disease, and is probably still alive today, with access to far more capable therapies than existed even a couple of decades ago.

Given all of this, one of the interesting things to note in the analysis of the Polish data is that the elite athletes born in the early 20th century appear to have a lower rate of aging than the general population, as determined by a slower rise in mortality over time, but that this difference between athletes and the average individual is greatly diminished for people born in the latter half of the 20th century. This suggests, roughly, that advances in medicine from 1900 to 1950 had a leveling effect, bringing up the average, preventing early deaths, but doing little to address age-related disease. That said, there is a large variation in results across the range of similar studies, both those that look at the history of longevity, and those that look at populations of athletes at a given time. It is wise to consider epidemiological studies in groups rather than one by one, and look for common themes. Still, this one is a fascinating data set for the way in which it combines historical trends and exercise in the study of aging.

Examining mortality risk and rate of ageing among Polish Olympic athletes: a survival follow-up from 1924 to 2012 – by Yuhui Lin, Antoni Gajewski, and Anna Poznańska

Quote:

A sedentary lifestyle is associated with the onset of chronic diseases including ischaemic heart disease, type-II diabetes and neurodegenerative diseases. Frequent exercise is perceived as a major behavioural determinant for improved life expectancy and a slower rate of ageing. There is little doubt that frequent exercise is beneficial for individuals’ well-being, and an active lifestyle reduces the risk for chronic diseases. However, it is still uncertain whether the rate of ageing decelerates in response to frequent and intense physical exercise. Our attempt is the first empirical study to show the application of a parametric frailty survival model to gain insights into the rate of ageing and mortality risk for Olympic athletes.

Our participants for this parametric frailty survival analysis were Polish athletes who had participated in the Olympic Games from 1924 to 2010. We assumed that these athletes were elite in their preferred sports expertise, and that they were engaged in frequent, if not intense, physical exercise. The earliest recorded year of birth was 1875, and the latest was in 1982; total N=2305; male=1828, female=477. For reliable estimates, mortality improvements by calendar events and birth cohort had to be taken into consideration to account for the advancements made in medicine and technology. After the consideration of mortality improvements and the statistical power for parametric survival analysis, we restricted our analysis to male athletes born from 1890 to 1959 (M=1273). For reliable estimates, we preassigned recruited athletes into two categorical cohorts: 1890-1919 (Cohort I); 1920-1959 (Cohort II).

Our findings suggest that Polish elite athletes in Cohort I born from 1890-1919 experienced a slower rate of ageing, and had a lower risk for mortality and a longer life-expectancy than the general population from the same birth cohort. It is very unlikely that these survival benefits were gained within a short observational time. Therefore, we argue that participation in frequent sports from young adulthood reduces mortality risk, increases life-expectancy and slows the rate of ageing. The age-specific mortality trajectories of Cohort I elite athletes also suggest frequent exercise can decelerate the rate of ageing by 1% with an achievement of threefold risk reduction in mortality. In comparison with those of the general population, the differences in energy expenditure, behavioural habits, body mass and sports expertise were likely to be the contributing factors to the higher variance in lifespan among elite athletes.

In Cohort II, the estimated rate of ageing is highly similar between elite athletes and the general population, which contradicts our estimates for Cohort I. This may be attributed to mortality improvements from year 1920 onwards in Poland. These mortality improvements have changed individuals’ susceptibilities for different causes of death, which has resulted in an increased variation in lifespan both in the general population and for elite athletes. Interestingly, the comparison of the rate of ageing of elite athletes in Cohort I and II shows a similar rate of ageing. Among the elite athletes, the estimates suggest that Cohort II individuals benefited from a 50% mortality risk reduction as compared with individuals born in Cohort I. The estimated overall mortality risk of the Polish general population is 29% lower in Cohort II than in I.

Reason is the founder of The Longevity Meme (now Fight Aging!). He saw the need for The Longevity Meme in late 2000, after spending a number of years searching for the most useful contribution he could make to the future of healthy life extension. When not advancing the Longevity Meme or Fight Aging!, Reason works as a technologist in a variety of industries.
This work is reproduced here in accord with a Creative Commons Attribution license. It was originally published on FightAging.org.

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The Two Faces of Aging: Cancer and Cellular Senescence – Article by Adam Alonzi

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The New Renaissance Hat
Adam Alonzi
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This article is republished with the author’s permission. It was originally posted on Radical Science News.

hELA-400x300Multiphoton fluorescence image of HeLa cells.

Aging, inflammation, cancer, and cellular senescence are all intimately interconnected. Deciphering the nature of each thread is a tremendous task, but must be done if preventative and geriatric medicine ever hope to advance. A one-dimensional analysis simply will not suffice. Without a strong understanding of the genetic, epigenetic, intercellular, and intracellular factors at work, only an incomplete picture can be formed. However, even with an incomplete picture, useful therapeutics can be and are being developed. One face is cancer, in reality a number of diseases characterized by uncontrolled cell division. The other is degradation, which causes a slue of degenerative disorders stemming from deterioration in regenerative capacity.

Now there is a new focus on making geroprotectors, which are a diverse and growing family of compounds that assist in preventing and reversing the unwanted side effects of aging. Senolytics, a subset of this broad group, accomplish this feat by encouraging the removal of decrepit cells. A few examples include dasatinib, quercetin, and ABT263. Although more research must be done, there are a precious handful of studies accessible to anyone with the inclination to scroll to the works cited section of this article. Those within the life-extension community and a few enlightened souls outside of it already know this, but it bears repeating: in the developed world all major diseases are the direct result of the aging process. Accepting this rather simple premise, and you really ought to, should stoke your enthusiasm for the first generation of anti-aging elixirs and treatments. Before diving into the details of these promising new pharmaceuticals, nanotechnology, and gene therapies we must ask what is cellular senescence? What causes it? What purpose does it serve?

Depending on the context in which it is operating, a single gene can have positive or negative effects on an organism’s phenotype. Often the gene is exerting both desirable and undesirable influences at the same time. This is called antagonistic pleiotropy. For example, high levels of testosterone can confer several reproductive advantages in youth, but in elderly men can increase their likelihood of developing prostate cancer. Cellular senescence is a protective measure; it is a response to damage that could potentially turn a healthy cell into a malignant one. Understandably, this becomes considerably more complex when one is examining multiple genes and multiple pathways. Identifying all of the players involved is difficult enough. Conboy’s famous parabiosis experiment, where a young mouse’s system revived an old ones, shows that alterations in the microenviornment, in this case identified and unidentified factors in the blood of young mice, can be very beneficial to their elders. Conversely, there is a solid body of evidence that shows senescent cells can have a bad influence on their neighbors. How can something similar be achieved in humans without having to surgically attach a senior citizen to a college freshman?

By halting its own division, a senescent cell removes itself as an immediate tumorigenic threat. Yet the accumulation of nondividing cells is implicated in a host of pathologies, including, somewhat paradoxically, cancer, which, as any life actuary’s mortality table will show, is yet another bedfellow of the second half of life. The single greatest risk factor for developing cancer is age. The Hayflick Limit is well known to most people who have ever excitedly watched the drama of a freshly inoculated petri dish. After exhausting their telomeres, cells stop dividing. Hayflick et al. astutely noted that “the [cessation of cell growth] in culture may be related to senescence in vivo.” Although cellular senescnece is considered irreversible, a select few cells can resume normal growth after the inactivation of the p53 tumor suppressor. The removal of p16, a related gene, resulted in the elimination of the progeroid phenotype in mice. There are several important p’s at play here, but two are enough for now.

Our bodies are bombarded by insults to their resilient but woefully vincible microscopic machinery. Oxidative stress, DNA damage, telomeric dysfunction, carcinogens, assorted mutations from assorted causes, necessary or unnecessary immunological responses to internal or external factors, all take their toll. In response cells may repair themselves, they may activate an apoptotic pathway to kill themselves, or just stop proliferating. After suffering these slings and arrows, p53 is activated. Not surprisingly, mice carrying a hyperactive form of p53 display high levels of cellular senescence. To quote Campisi, abnormalities in p53 and p15 are found in “most, if not all, cancers.” Knocking p53 out altogether produced mice unusually free of tumors, but those mice find themselves prematurely past their prime. There is a clear trade-off here.

In a later experiment Garcia-Cao modified p53 to only express itself when activated. The mice exhibited normal longevity as well as an“unusual resistance to cancer.” Though it may seem so, these two cellular states are most certainly not opposing fates. As it is with oxidative stress and nutrient sensing, two other components of senescence or lack thereof, the goal is not to increase or decrease one side disproportionately, but to find the correct balance between many competing entities to maintain healthy homeostasis. As mentioned earlier, telomeres play an important role in geroconversion, the transformation of quiescent cells into senescent ones. Meta-analyses have shown a strong relationship between short telomeres and mortality risk, especially in younger people. Although cancer cells activate telomerase to overcome the Hayflick Limit, it is not entirely certain if the activation of telomerase is oncogenic.

majormouse

SASP (senescence-associated secretory phenotype) is associated with chronic inflammation, which itself is implicated in a growing list of common infirmities. Many SASP factors are known to stimulate phenotypes similar to those displayed by aggressive cancer cells. The simultaneous injection of senescent fibroblasts with premalignant epithelial cells into mice results in malignancy. On the other hand, senescent human melanocytes secrete a protein that induces replicative arrest in a fair percentage of melanoma cells. In all experiments tissue types must be taken into account, of course. Some of the hallmarks of inflammation are elevated levels of IL-6, IL-8, and TNF-α. Inflammatory oxidative damage is carcinogenic and an inflammatory microenvironment is a good breeding ground for malignancies.

Caloric restriction extends lifespan in part by inhibiting TOR/mTOR (target of rapamycin/mechanistic target of rapamycin, also called  the mammalian target of rapamycin). TOR is a sort of metabolic manager, it receives inputs regarding the availability of nutrients and stress levels and then acts accordingly. Metformin is also a TOR inhibitor, which is why it is being investigated as a cancer shield and a longevity aid. Rapamycin has extended average lifespans in all species tested thus far and reduces geroconversion. It also restores the self-renewal and differentiation capacities of haemopoietic stem cells. For these reasons the Major Mouse Testing Program is using rapamycin as its positive control. mTOR and p53 dance (or battle) with each other beautifully in what Hasty calls the “Clash of the Gods.” While p53 inhibits mTOR1 activity, mTOR1 increases p53 activity. Since neither metformin nor rapamycin are without their share of unwanted side effects, more senolytics must be explored in greater detail.

Starting with a simple premise, namely that senescent cells rely on anti-apoptotic and pro-survival defenses more than their actively replicating counterparts, Campisi and her colleagues created a series of experiments to find the “Achilles’ Heel” of senescent cells. After comparing the two different cell states, they designed senolytic siRNAs. 39 transcripts were selected for knockdown by siRNA transfection, and 17 affected the viability of their target more than healthy cells. Dasatinib, a cancer drug, and quercitin, a common flavonoid found in common foods, have senolytic properties. The former has a proven proclivity for fat-cell progenitors, and the latter is more effective against endothelial cells. Delivered together, they they remove senescent mouse embryonic fibroblasts. Administration into elderly mice resulted in favorable changes in SA-BetaGAL (a molecule closely associated with SASP) and reduced p16 RNA. Single doses of D+Q together resulted in significant improvements in progeroid mice.

If you are not titillated yet, please embark on your own journey through the gallery of encroaching options for those who would prefer not to become chronically ill, suffer immensely, and, of course, die miserably in a hospital bed soaked with several types of their own excretions―presumably, hopefully, those who claim to be unafraid of death have never seen this image or naively assume they will never be the star of such a dismal and lamentably “normal” final act. There is nothing vain about wanting to avoid all the complications that come with time. This research is quickly becoming an economic and humanitarian necessity. The trailblazers who move this research forward will not only find wealth at the end of their path, but the undying gratitude of all life on earth.

Adam Alonzi is a writer, biotechnologist, documentary maker, futurist, inventor, programmer, and author of the novels “A Plank in Reason” and “Praying for Death: Mocking the Apocalypse”. He is an analyst for the Millennium Project, the Head Media Director for BioViva Sciences, and Editor-in-Chief of Radical Science News. Listen to his podcasts here. Read his blog here.

References

Blagosklonny, M. V. (2013). Rapamycin extends life-and health span because it slows aging. Aging (Albany NY), 5(8), 592.

Campisi, Judith, and Fabrizio d’Adda di Fagagna. “Cellular senescence: when bad things happen to good cells.” Nature reviews Molecular cell biology 8.9 (2007): 729-740.

Campisi, Judith. “Aging, cellular senescence, and cancer.” Annual review of physiology 75 (2013): 685.

Hasty, Paul, et al. “mTORC1 and p53: clash of the gods?.” Cell Cycle 12.1 (2013): 20-25.

Kirkland, James L. “Translating advances from the basic biology of aging into clinical application.” Experimental gerontology 48.1 (2013): 1-5.

Lamming, Dudley W., et al. “Rapamycin-induced insulin resistance is mediated by mTORC2 loss and uncoupled from longevity.” Science 335.6076 (2012): 1638-1643.

LaPak, Kyle M., and Christin E. Burd. “The molecular balancing act of p16INK4a in cancer and aging.” Molecular Cancer Research 12.2 (2014): 167-183.

Malavolta, Marco, et al. “Pleiotropic effects of tocotrienols and quercetin on cellular senescence: introducing the perspective of senolytic effects of phytochemicals.” Current drug targets (2015).

Rodier, Francis, Judith Campisi, and Dipa Bhaumik. “Two faces of p53: aging and tumor suppression.” Nucleic acids research 35.22 (2007): 7475-7484.

Rodier, Francis, and Judith Campisi. “Four faces of cellular senescence.” The Journal of cell biology 192.4 (2011): 547-556.

Salama, Rafik, et al. “Cellular senescence and its effector programs.” Genes & development 28.2 (2014): 99-114.

Tchkonia, Tamara, et al. “Cellular senescence and the senescent secretory phenotype: therapeutic opportunities.” The Journal of clinical investigation 123.123 (3) (2013): 966-972.

Zhu, Yi, et al. “The Achilles’ heel of senescent cells: from transcriptome to senolytic drugs.” Aging cell (2015).

 

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The Role of Aging in Society – Article by Demian Zivkovic

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Categories: Culture, Philosophy, Transhumanism, Tags: , , , , , , , , , , , , , ,

The New Renaissance HatDemian Zivkovic
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Take the following situation. We discover an extremely contagious virus. It infects you and your loved ones, and quickly propagates through all of mankind. As a result, 150,000 people die every day. It kills more than twice the number killed in the Holocaust every three months, and in 30 years, it will have killed 1.5 billion, around one in six people. How high would this score on a list of global priorities? There’s no doubt the situation would be grave. Most people would demand immediate action.
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But that’s just a thought experiment, right? Not really. Every day, 150,000 people do die from age-related disease. Not only the cost in lives is monumental; societal and economic costs are also on the rise. According to the Dutch Statistics Authority (the CBS), the amount of people older than 65 (retirement age) will have increased to 27% in 2040, from the current 19%. As more people are born, this also means more people die from age-related disease, taking all their knowledge, expertise, and productivity with them. In short: If we don’t do anything about the consequences of our aging population, we face severe consequences.
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So what is the best way to deal with the problem of our society aging?

There is no simple solution. More conventional healthcare barely improves quality of life, while just letting people die is not an ethical option. Rutger Bregman, a Dutch historian and philosopher, argues for thinking more radically about solutions to societal problems. According to his essay “Een pleidooi voor de utopie” (A plea for utopia) in the Dutch magazine “De groene Amsterdammer”, we have lost the ability to think in such a way; We only look at marginal improvements, instead of looking at changes that could radically improve and change our society. So if we do explore more radical solutions, what can we do?

Professor Aubrey de Grey, Ph.D. in biology, Chief Science Officer of the prestigious SENS Research Foundation, and partner at the Gerontological Society of America, argues that we could look at a radical intervention in human aging. According to de Grey, the best way of solving many of these problems is to cure aging at its source. De Grey is not the only one who holds that opinion. Alphabet, Inc.‘s biotechnology subsidiary (Calico) also views the problem from this position. This point of view obviously raises quite a few questions. Critics claim that de Grey’s vision is impossible or undesirable. Proponents point to the massive advantages of curing age-related disease.

One of the arguments put forward is that short-term thinking causes many economical and societal problems. Economist Joseph Stiglitz speaks about rent-seeking (“Rent-Seeking and the Making of an Unequal Society”, 2014), economically destructive behaviour in which an individual or business enriches itself while harming the entire economy in the process. Environmental concerns are also a very large issue. Since people (if they are lucky) don’t get to live much longer than a hundred years old, many people find it very uninteresting to think about what our behaviour is doing to the environment on the long term. But what will it mean for these problems if we have to let go of short-term thinking, because we live for a much longer time? One thing is for sure: If de Grey’s vision becomes reality, a lot will change in our society.

Economy, Environment, and Overpopulation
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Short-term thinking has a catastrophic effect on our economy and environment.

The previously mentioned economist Joseph Stiglitz claims in his article that our economy is suffering serious problems, since rent-seeking is causing society-wide destruction and inequality. For centuries, economists, philosophers, and ethicists have been considering how to stop such unethical behavior. Usually, they looked at different moral developments, better regulations, or restructuring society as solutions.

In his work “The Power of Context”, Malcolm Gladwell makes the claim that the environment and the context we live in have a large impact on our behaviour. Human life knows a few certainties; one of them is that you will die within a century. One may have children or grandchildren, but very few people are concerned about the fate of their heir several hundred generations down the road. In my interview with him (2014, Nakedbutsafe magazine), Professor de Grey argues that many people would be much more concerned with the long term if they knew they would still be around in several centuries, and there’s a lot to be said about that. Instead of waging a fruitless and hopeless war on selfishness, it may be more prudent to use it to improve the world.

De Grey’s solution essentially means inventing the fountain of youth through advanced biotechnology. He wants to do this through a method called “Strategies for Engineered Negligible Senescence” or SENS. SENS essentially involves periodically repairing accumulated damage from aging, so it never reaches a critical point where it turns into a specific illness. De Grey is not the only one who is looking for a solution for aging: Google Ventures heavily invests in such technology.

In 2013, Google founded a company called Calico, which entered a partnership with AbbVie. With a record investment of two billion dollars, most money ever put into a start-up, the ambitious firm wants to create a fundamental understanding of aging and use said understanding to eventually cure said aging. Bill Maris, president of Google Ventures, has already made the famous claim we will be able to have technology to live 500 years within our lifetimes. Another actor in the corporate sector is BioViva, whose CEO, Elizabeth Parrish, has become the first human on the planet to get treated with a combination of in vivo gene therapies to slow down aging.

The approaches of Calico, SENS, and BioViva look at the problem from different angles, but they have one thing in common: they are not looking at ways to extend the lives of sick, disabled seniors. Instead, they are looking at a method to not simply extend life, but to extend health. They are looking at methods to stop this biological aging from happening. Life extension is merely a side effect. After all, if a 200-year-old has the vitality of a 40-year-old, why would an aging population be a problem? Even though the population will age, the percentage of “elderly” people will decrease, and so will age-related suffering and related economic pressure.

However, not everyone is optimistic about these changes. Critics are concerned about what a radically extended life will mean for overpopulation. They argue that if nobody dies, we will have so many people that we will either have to kill people, or make reproduction illegal. While such a top-down approach may seem like “common sense”, there’s a lot to be said about why such drastic top-down measures will be unnecessary. Steven Johnson, a best-selling popular science author and media theorist, introduces the concept of emergence (Emergence: The Connected Lives of Ants, Brains, Cities, and Software, 2001). Emergence refers to patterns in complex systems which can’t be reduced to the properties or behaviours of an individual element of the system. Johnson uses the ant colony as an example: while no single ant coordinates the behaviour of the colony, the entire system is self-organizing and thus functions perfectly. An ant colony, but even more so human society, is a good example of an emergent system.

A simple example of this self-organization is the distribution of bread. There is no central authority that plants where bakeries should be located, how much grain should be produced, what logistic solutions should be used for bread transport to people’s homes, or what bread prices ought to be. In fact, such central planning has been tried several times in history. In communist dictatorships such as the Soviet Union and North Korea, centralized attempts at steer society have had catastrophic results. However, if emergence of self-organisation does its job, a society flourishes. We can see this same effect work on overpopulation and birth rates. According to the World Health Organisation, the fertility rates plummet as life expectancy skyrockets. Countries that have the highest life expectancies have the lowest birth rates. Japan, which has one of the highest life expectancies has a negative birth rate; its population is in decline, even though no central planning has intervened in any way.

This hypothesis is also supported by virtually all historic trends. Every widespread average life-expectancy spike was met with a plummet in birth rates. When our life expectancy went up because of the invention of antibiotics, our birth rates hit historic lows. We see the opposite in countries where life expectancy is very low. The country with the highest birth rate is Nigeria, while it’s one of the poorest countries in the world. The average life expectancy in Nigeria is below 55. According to the United Nations, countries with low life expectancy have by far the largest effect on overpopulation.

Regulation of population is therefore unnecessary; a complex system such as modern society self-regulates and corrects itself. This idea is in line with Gladwell’s theory of context-dependent behavior; the context largely defines our behavior. And as a self-organizing system, society demonstrably changes the context to steer our behavior in effective patterns. A dystopia where government has to regulate reproduction or death is very unlikely.

Philosophical Arguments

If Gladwell is right about context as catalyst of behaviour, what will the effects of a society devoid of biological aging be on our humanity? Not all arguments against radical life extension are pragmatic in nature. The conservative bioethicist Leon Kass is one of the opponents of radical life extension pondering this question. He argues that indefinite life extension is unnatural and thus undesirable. Kass also claims that we won’t appreciate life if we life “forever.”

“Time is a gift, but the perception of endless time or of time without bound in fact has the possibility of undermining the degree to which we take time seriously and make it count.”

~ Leon Kass (Aging Research, 2004).

Kass makes a comparison with the ancient Greek gods to argument why life’s shortness gives it purpose.

Homer in The Iliad and The Odyssey presents human beings whom he names as mortals. That is their definition in contrast to the immortals. And the immortals for their agelessness and their beauty live sort of shallow and frivolous lives. Indeed, they depend for their entertainment on watching the mortals who, precisely because they know that their time is limited, and that they go around only once, are inclined to make time matter and to aspire to something great for themselves.

~ Leon Kass (Aging Research, 2004)

While these arguments may seem somewhat of a philosophical take on many common criticisms, they are easily debunked. Elizabeth Parrish, CEO of BioViva and a pioneering entrepreneur in the field of gene therapy, argues against the idea that we should accept something because it’s considered “normal.” (“Liz Parrish speaks at People Unlimited on transcending the aging paradigm with gene therapy”, 2015). She argues that “normal” is a situational opinion which constantly changed throughout the entirety of history. In 1665, dying of infectious disease was normal. During this time only one percent of all humans died from aging: Infectious diseases were responsible for more than three quarters of all deaths before we developed the first immunization therapies – the development of which is similar to the process to defeat aging with gene therapy today. Just like today, there was criticism of the development of vaccines and antibiotics, even though lifespans and health were greatly improved by the use of these advancements – and the arguments have stayed very much the same.

Parrish is not the only one who provides a strong argument against the vision of Kass. Reason, creator of the Fight Aging! blog, is another intellectual who is very skeptical about Kass’s position. In his rebuttal of Kass (“Leon Kass, Mystic” by Reason, 2004), he compares Kass with an alchemist, a modern mystic:

“The alchemists of old stood atop what little knowledge of chemistry they had and built a speculative religion of hermetic magic, transient wishes, celestial signs and hidden gold. Leon Kass stands atop what little biotechnology we have today (and seems to have a good grasp thereof), building his own structures of fanciful thought, equally disconnected from the real world. 

All of Kass’ arguments against longer, healthier lives are essentially mystical and devoid of real substance.”

In “Leon Kass, Mystic” (2004), Reason wonders if Kass’s philosophical musings are enough of a reason to condemn billions of people to a slow and painful death. Just like the alchemists, Reason argues, Kass’s vision is based upon ancient texts and his own subjective knee-jerk reactions, instead of researching the world around him. Reason postulates that this is the fundamental difference between a mystic and a scientist: The mystic is immune to impractical facts, consequences, and reality.

De Grey also argues against the bioconservative position. He rejects the idea that longer lives will somehow lower our appreciation of life. We will be able to start a new major when we are fifty years old, or a new career when we’re a hundred and fifty. The very fact that we have so little time causes us to experience “lock-in” in our careers and choices. This causes boredom and stress. The amount of time we lose switching to doing something we may enjoy a lot more is too radical, because we have so little time to begin with. Radical life extension seems more likely to actually cure the problems its critics claim it will cause (such as boredom, stress, or disenchantment with life).

Conclusion

Treatments for age-related diseases are on their way, and curing aging is big business. The first people are already getting early treatments, and the prognoses are positive. Society will have to adapt to the changes that come with these treatments. It is very important to explore options for adequately engaging public opinion in favor of curing age-related disease, to mitigate massive economic and human losses that these diseases currently cause, and to create the legislation and framework needed to implement these technologies in a fair, responsible, and sane way.

Bibliography

Bregman, Rutger (2013). Dromen is niet eng; Essay Pleidooi voor de utopie. De Groene Amsterdammer, jaar 137, week 20. https://www.groene.nl/artikel/pleidooi-voor-de-utopie.

Gladwell, Malcolm (2000). The Power of Context. In R.E. Miller & Spellmeyer (Eds.), The New Humanities Reader (Fifth Edition, pp. 148-167). Print.
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Stiglitz, J. E. (2012). Rent Seeking and the Making of an Unequal Society. In R.E. Miller & Spellmeyer (Eds.), The New Humanities Reader (Fifth Edition, pp. 148-167). Print.
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Johnson, Steven. ‘Emergence: The connected Lives of Ants, Brains, Cities, and Software’, 2001. In ‘The New Humanities Reader’, Richard E. Miller, Kurt Spellmeyer, Wadsworth, 2011, pp. 151 – 165

De Grey, Aubrey D. N. J. (2005). Resistance to debate on how to postpone ageing is delaying progress and costing lives. EMBO Reports, 6(Suppl 1), S49–S53. http://doi.org/10.1038/sj.embor.7400399

Kass, Leon (2004). Aging Research.  http://agingresearch.org/sage/Default.aspx?tabid=60

Reason (2004). Leon Kass, Mystic. FightAging.org. https://www.fightaging.org/archives/2004/04/leon-kass-mysti.php
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Parrish, Elizabeth (2015). Liz Parrish speaks at People Unlimited on transcending the aging paradigm with gene therapy. https://www.youtube.com/watch?v=87OUb8TBwX0
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Demian Zivkovic is the president of the Institute of Exponential Sciences  (Facebook  / Meetup) – an international transhumanist think tank / education institute comprised of a group of transhumanism-oriented scientists, professionals, students, journalists, and entrepreneurs interested in the interdisciplinary approach to advancing exponential technologies and promoting techno-positive thought. He is also an entrepreneur and student of artificial intelligence and innovation sciences and management at the university of Utrecht.

Demian and the IES have been involved in several endeavors, such as organizing lectures on exponential sciences, interviewing experts such as Aubrey de Grey, joining several of Mr. Stolyarov’s futurism panels, and spreading Death is Wrong – Mr. Stolyarov’s illustrated children’s book on indefinite life extension – in The Netherlands.

Demian Zivkovic is a strong proponent of healthy life extension and cognitive augmentation. His interests include hyperreality, morphological freedom advocacy, postgenderism, and hypermodernism. He is currently working on his ambition of raising enough capital to make a real difference in life extension and transhumanist thought.

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