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Human Pilot Study Results for Senolytics Published – Article by Steve Hill

Human Pilot Study Results for Senolytics Published – Article by Steve Hill

Steve Hill


Editor’s Note: The U.S. Transhumanist Party features this article by Steve Hill, originally published by our allies at the Life Extension Advocacy Foundation (LEAF) on January 7, 2019. This article presents the results of a human pilot study that involved the consumption of two promising senolytic drugs, dasatinib and quercetin, to target idiopathic pulmonary fibrosis. The results are promising and constitute a great step forward for senolytics being tested in human clinical trials. Another promising approach is the TAME trial, which is a double-blind randomized controlled clinical trial, to test if Metformin can treat various age-related diseases. 

~Bobby Ridge, Assistant Editor, July 4, 2019

The results from a human pilot study that focused on treating idiopathic pulmonary fibrosis with senescent cell-clearing drugs has been published. The drugs target aged and damaged cells, which are thought to be a reason we age and get sick, and remove them from the body.

Senescent cells and aging

As we age, increasing numbers of our cells become dysfunctional, entering into a state known as senescence. Senescent cells no longer divide or support the tissues and organs of which they are part; instead, they secrete a range of harmful inflammatory chemical signals, which are collectively known as the senescence-associated secretory phenotype (SASP).

Dr. Judith Campisi from the Buck Institute for Research on Aging, along with her research team, identified that senescent cells secreted the various harmful chemicals that characterize the SASP in 2008, which was when interest in senescent cells really began [1]. In 2010, building on this initial research, Dr. Campisi went on to show the link between the SASP and cancer [2].The SASP increases inflammation, harms tissue repair and function, causes the immune system to malfunction, and raises the risk of developing age-related diseases such as cancer. It can also encourage other nearby healthy cells to become senescent via the so-called bystander effect. Therefore, a small number of these cells can cause a great deal of harm.

Normally, senescent cells destroy themselves by a self-destruct process known as apoptosis before being cleared away by the immune system. Unfortunately, as we age, the immune system becomes weaker, and senescent cells start to build up in the body. The accumulation of senescent cells is considered to be one of the reasons why we age and develop age-related diseases.

It has been suggested that the clearance of senescent cells might help address a number of age-related diseases at once, as senescent cells are thought to be one of the fundamental reasons that we age. Drugs that can remove these unwanted, damaged cells are known as senolytics.

Human trial results for senolytics

This new publication by researchers at the Mayo Clinic, including James Kirkland, one of the pioneers of senolytic drugs, shows the results of a pilot study that uses dasatinib and quercetin to treat idiopathic pulmonary fibrosis [3].

Pulmonary fibrosis causes scarring of the lung tissue, which leads to the progressive loss of lung function over time. When the disease’s origin is unknown, it is called idiopathic pulmonary fibrosis, or IPF. The treatment options for this disease are extremely limited with no currently known cure.

The researchers in this new study tested a combination of dasatinib and quercetin, one of the earliest senolytic drug combinations that was tested in mice and shown to have beneficial results, particularly for the cardiovascular system [4-5]. It was also shown in a previous study that clearing senescent cells using dasatinib plus quercetin was able to alleviate idiopathic pulmonary fibrosis (IPF)-related dysfunction in a mouse model of the disease.

Fourteen patients with IPF were recruited for this pilot study, and the initial results, while leaving room for improvement, are promising.

Physical function evaluated as 6-min walk distance, 4-m gait speed, and chair-stands time was significantly and clinically-meaningfully improved (p < .05). Pulmonary function, clinical chemistries, frailty index (FI-LAB), and reported health were unchanged. DQ effects on circulating SASP factors were inconclusive, but correlations were observed between change in function and change in SASP-related matrix-remodeling proteins, microRNAs, and pro-inflammatory cytokines (23/48 markers r ≥ 0.50).

It should be noted that this was only a small pilot study and that the optimal human dosage and frequency is yet to be established. Typically, the next step is to launch a larger-scale study to establish this dosage.

The researchers also note that these results warrant evaluation of dasatinib plus quercetin in larger, randomized, and controlled trials for senescence-related diseases. In other words, they would like to test senolytics in larger studies for various age-related diseases, and the results certainly support doing exactly that.

Conclusion

These initial results are positive, despite there being plenty of room for improvement. The combination of these two drugs also appears to favor particular cell and tissue types over others, much like other senolytic drugs, which were discovered after dasatinib and quercetin were originally shown to clear senescent cells. It may be that a combination of different senolytics will be needed as a “cocktail” of sorts to fully clear out all the unwanted senescent cells, as different senescent cells appear to use various survival pathways to evade apoptosis, and no single drug can target them all.

We greet these early results positively and look forward to the beginning of larger-scale studies for multiple age-related diseases. Given how senescent cells appear to be implicated in most if not all age-related diseases, there are some exciting possibilities ahead.

Literature

[1] Coppé, J. P., Patil, C. K., Rodier, F., Sun, Y., Muñoz, D. P., Goldstein, J., … & Campisi, J. (2008). Senescence-associated secretory phenotypes reveal cell-nonautonomous functions of oncogenic RAS and the p53 tumor suppressor. PLoS biology, 6(12), e301.

[2] Coppé, J. P., Desprez, P. Y., Krtolica, A., & Campisi, J. (2010). The senescence-associated secretory phenotype: the dark side of tumor suppression. Annual Review of Pathological Mechanical Disease, 5, 99-118.

[3] Nambiar, A., Justice, J., Pascual, R., Tchkonia, T., Lebrasseur, N., Kirkland, J., … & Kritchevsky, S. (2018). Targeting pro-inflammatory cells in idiopathic pulmonary fibrosis: an open-label pilot study of dasatinib and quercitin. Chest, 154(4), 395A-396A.

[4] Zhu, Y., Tchkonia, T., Pirtskhalava, T., Gower, A. C., Ding, H., Giorgadze, N., … & O’hara, S. P. (2015). The Achilles’ heel of senescent cells: from transcriptome to senolytic drugs. Aging cell, 14(4), 644-658.

[5] Roos, C. M., Zhang, B., Palmer, A. K., Ogrodnik, M. B., Pirtskhalava, T., Thalji, N. M., … & Zhu, Y. (2016). Chronic senolytic treatment alleviates established vasomotor dysfunction in aged or atherosclerotic mice. Aging cell.[/column]

Steve Hill serves on the LEAF Board of Directors and is the Editor-in-Chief, coordinating the daily news articles and social media content of the organization. He is an active journalist in the aging research and biotechnology field and has to date written over 500 articles on the topic as well as attending various medical industry conferences. In 2019 he was listed in the top 100 journalists covering biomedicine and longevity research in the industry report – Top-100 Journalists covering advanced biomedicine and longevity created by the Aging Analytics Agency. His work has been featured in H+ Magazine, Psychology Today, Singularity Weblog, Standpoint Magazine, Keep Me Prime, and New Economy Magazine. Steve has a background in project management and administration which has helped him to build a united team for effective fundraising and content creation, while his additional knowledge of biology and statistical data analysis allows him to carefully assess and coordinate the scientific groups involved in the project. In 2015 he led the Major Mouse Testing Program (MMTP) for the International Longevity Alliance and in 2016 helped the team of the SENS Research Foundation to reach their goal for the OncoSENS campaign for cancer research.

 

The Rise of Oisin Biotechnologies – Interview with Gary Hudson, CEO of Oisin Biotechnologies, by Ariel VA Feinerman

The Rise of Oisin Biotechnologies – Interview with Gary Hudson, CEO of Oisin Biotechnologies, by Ariel VA Feinerman

Ariel VA Feinerman
Gary Hudson


Gary Hudson

Preface

What is ageing? We can define ageing as a process of accumulation of the damage which is just a side-effect of normal metabolism. While researchers still poorly understand how metabolic processes cause damage accumulation, and how accumulated damage cause pathology, the damage itself — the structural difference between old tissue and young tissue — is categorized and understood pretty well. By repairing damage and restoring the previous undamaged — young — state of an organism, we can really rejuvenate it! Sounds very promising, and so it is. And for some types of damage (for example, for senescent cells) it is already proved to work!

Today in our virtual studio somewhere between cold rainy Saint-Petersburg and warm rainy Seattle, we meet Gary Hudson!

He has been involved in private space flight development for over 40 years. Hudson is best known as the founder of Rotary Rocket Company, which in spending ~$30 Million attempted to build a unique single stage to orbit launch vehicle known as the Roton. He helped found Transformational Space T/Space in 2004 and AirLaunch LLC which was awarded the DARPA/USAF FALCON project in 2003.

Previous projects included designs of the Phoenix SSTO, the Percheron, and other rockets, founder of Pacific American Launch Systems, and various consulting projects. Currently, he is the President and CEO of the Space Studies Institute.

Now Hudson brings his excellent engineering skills into rejuvenation biotechnology! He is a founding partner of Oisin Biotechnologies, who are developing a liposomally delivered DNA therapy for the removal of senescent cells from the body. Hudson provided an initial seed donation to help fund the creation of the Methuselah Foundation and SENS Research Foundation.

Interview

Feinerman: Hello, Mr Gary Hudson!

Hudson: Thanks for inviting us to this interview!

Feinerman: You have recently visited an amazing Undoing Aging 2018 conference, which took place in Berlin, 15–17 March, where your colleague, Matthew Scholz, was a speaker. What is your impression?

Hudson: It was a great conference with several important presentations. It put me in mind of the early SENS conferences in Cambridge, UK, which I helped to sponsor. I understand it will now become an annual event. Our CSO Dr. John Lewis also gave an important summary of our work to date.

Feinerman: Will Oisin’s presentations from conference be available for general public?

Hudson: I believe that the SENS Foundation will be posting them but I don’t have details about the timing.

FeinermanYour last interview was in July 2017, more than half a year ago. What has been accomplished?

Hudson: We have conducted many pre-clinical mouse experiments on both cancer and senescent cell removal. All have been successful and produce very remarkable results. We’ve also conducted a pilot toxicity and safety trial on non-human primates. The results of that trial were also successful and encourage us to proceed to human safety trials as soon as regulatory authorities approve them. We have also spun-out a cancer-focused company, Oisin Oncology, and raised a seed round for that venture.

Feinerman: Great to hear! However, when can we see some papers? People usually trust papers more than mere interviews or press releases. Of course, papers need many efforts not related to research but they will allow you attract more attention from general public, researchers, and investors.

Hudson: Papers are being prepared now for submission to major journals, but that process takes time, especially the peer review. For the moment, most of our data is only available to investors and partners in pharma and the biotech industry.

Feinerman: You planned human clinical trials, have you carried them out?

Hudson: It takes quite some time to organize a human trial and to get it approved. Before one can be conducted, we have to set up so-called “GMP (Good Manufacturing Practice) manufacture of our therapeutic, and then we have to conduct “GLP (Good Laboratory Practice) Tox” studies in two different species. Once that is all completed later this year, then we can begin a human safety trial, or a “Phase 1” trial. All this takes time, but we hope that first safety trials in oncology indications might begin this year, or in early 2019.

Feinerman: Does that mean we have a race between Unity Biotechnology and Oisin and you have all chances to win the race?

Hudson: I don’t see it as a race or a competition. I believe that future anti-aging treatment will require multiple complimentary approaches.

Feinerman: When we can expect your therapy available in the clinic?

Hudson: It’s very difficult to predict. I believe that our cancer treatment will make it to the clinic first, and that could happen in less than five years. Since the FDA doesn’t regard ageing as an indication, it may take longer for our SENSOlytic™ treatment to reach the public, since the regulatory environment will need to change.

Feinerman: As Michael Rae has said, we need not to wait when ageing will be recognised as a disease. You can mark your senolytics as a therapy for specific ageing pathology like fibrosis or chronic inflammation in the same way as Unity does.

Hudson: This is certainly true and is part of our strategy, but many of those endpoints are more difficult to ascertain than oncology endpoints. Additionally, going after oncology approvals can be faster and easier to get to clinic. But we will push forward on several fronts as funding permits.

Feinerman: In your previous interview you have said that you make some tweaks to both the promoter side and the effector side of the constructs that will provide even more interesting and useful extensions to the basic capability, but you can’t discuss those for IP reasons. Can you now say about them?

Hudson: I still can’t say too much about them, but we have conducted animal trials on some of these “tweaks” and they work quite well. The downside to the matter is that every “tweak” requires new trials, and our goal is to get something to the clinic as soon as possible, so many of the improvements will have to wait. Progress is limited based on available funds and personnel resources, of course, but we will move as quickly as we can.

Feinerman: Do you use any CAD software to design your constructs? Are you going to make them public so independent engineers will be able to help you identify new useful pairs of promoters and effectors? Your technology is so powerful that Open Source approach would be very helpful!

Hudson: No, the design of the current constructs are very straightforward and simple. As our patents are issued, their design will become public. If people wish to design their own constructs for particular applications they may contact us for collaboration, though we do have several collaborations active at the moment so we may already be working on similar ideas.

Feinerman: What do you think on targeting your machinery on cells with abnormal telomerase activity to kill cancer? Can you use several conditions — like in programming — several promoters to be more specific?

Hudson: If we targeted telomerase we’d also kill stem cells, just like the side effects of much of conventional chemotherapy. That’s probably not a good idea. But multiple promoters, or synthetic promoters, might be used to achieve the aims of killing only cancer cells. Our initial therapeutic will likely just employ p53 promoter targeting, since we have good data that works.

Feinerman: Yeah, the same issue as when we remove or break telomerase gene: there would be nice to do this only in compromised tissue, but as researchers say it is very difficult to make the removal selective. However, it is not a problem with ALT genes, which cause 15–20% of cancers. Are you going to collaborate with the OncoSENS lab? Also killing cells actively expressing telomerase will be very useful in WILT implementation.

Hudson: We’ve had conversations with the SENS Foundation about OncoSENS and cooperated in a preliminary fashion, but I don’t believe it is currently a research priority for them. We already have enough projects to keep us busy for some time, too!

Feinerman: Now you use only suicide gene as an effector, do you plan to use other genes? For example to enhance the cells, give them ability to produce new enzymes, or temporarily shut down telomerase to help anti-cancer therapy to be more effective.

Hudson: We believe we can express any gene under the control of any promoter we wish to use, so the possibilities are almost endless.

Feinerman: Now we know that epigenetic changes (shift) play a huge role in ageing. Even though there is no consensus among researchers whether they are a cause or a consequence of ageing, experiments show that temporal expression of OSKM transcription factors may have some health benefits by restoring “young” epigenetic profiles. You can remember the Belmonte work, for example. However, the problem in their work is that they used transgenic mice and express OSKM in every their cell. If you temporarily express OSKM in an “old” cell, that is OK, you can “rejuvenate” such a cell. While if you express OSKM in a stem cell which is already biologically “young”, you can force the cell into iPSC, which is a way to cancer. Using your machinery we can target only cells which have “old” expression profiles, and involving normal mice! Such a work will be much “cleaner” and safer than Belmonte’s work.

Hudson: With respect to your comments about reprogramming, Oisin is currently working with a university group on exactly this approach, but I can’t say more at this time. We also believe that first you have to clear existing senescent cells, then you can reprogram successfully.

Feinerman: How many resources, finances, and personnel do you need to move as quickly as possible? Do you have open positions? Maybe, some of our readers have enough finances or experience.

Hudson: We could effectively spend tens of millions or dollar or more, very easily, but it isn’t realistic to assume we could raise that amount — and if we did, we’d lose control of Oisin’s ageing focus, since investors would most likely want us to aim at quick returns. We are always interested in talking with “mission minded” investors, however. As for hiring, we have to do that slowly and judiciously, since labour is one of the biggest costs to a start-up company, and over-hiring can sink a project quickly. We already have more potential hires than we can bring on-board.

Feinerman: Now cryptocurrencies and blockchain technologies allow completely new and efficient ways for investments. We can see this as various no-name companies easily rise tens of millions dollars via ICOs for clearly doubtful projects. Would you like to make an ICO? Oisin shows real progress and can easily rise big sums! People say that they will be glad to buy your tokens if you issue them. You have said that you prefer to work with “mission minded” investors. There are thousands people out there who can invest from $1,000 to $100,000 in cryptocurrencies and who believe that radical extension of healthy life is possible!

If you are worried about legal issues, you can use various cryptocurrency investment funds who act like proxies between holders of cryptocurrencies and companies.

Hudson: We have investigated several of these financing options, but we are not expert in this area, so we have been reluctant to move too quickly. But we continue to have conversations with relevant parties. There is a lot of regulatory uncertainty surrounding ICOs, however, so we must move cautiously.

Feinerman: Now we know enough about ageing to defeat our main enemy. Do you agree that first comprehensive rejuvenation panel is not a scientific problem and even not an engineering problem, but a problem of engineering management?

Hudson: I wouldn’t say that there is no science left to do, but as an engineer myself I naturally agree that proper engineering management and program management skills must be brought to bear on the problem of ageing.

Feinerman: One person has said, we get what we ask for. Can we now aim high and publicly claim that our main goal is not additional five years of life but LEV — Longevity Escape Velocity and finally unlimited healthy life?

Hudson: This is a difficult “public relations” problem. Most investors, the scientific community, and the public are not yet ready to embrace the notion of longevity escape velocity. Thus at Oisin we do pitch health span as a primary goal. But personally I don’t believe that you can obtain health span improvements without making significant progress towards LEV. So in the end, I think we get LEV by targeting health span, and we reduce the controversy by doing so.

Feinerman: Some people ask me how to buy your stocks or invest in Oisin. What can you say?

Hudson: We do have a number of private investors (angel investors) who are “mission minded” or “mission focused” and we welcome discussions with qualified investors and firms who share our vision for dealing with ageing and cancer. Accredited investor candidates may contact us at info@oisinbio.com

Feinerman: David Gobel claims that “By advancing tissue engineering and regenerative medicine, we want to create a world where 90-year olds can be as healthy as 50-year olds by 2030.” And I secretly hope that 40 will become new 30 or even 20 by 2030! Can we achieve that — in principle?

Hudson: I certainly hope so! In 2030 I’ll be 80, so I’m looking forward to feeling like I’m 40…

Feinerman: Thank you very much for your amazing answers! That was a real pleasure to talk with such a great man like you. I hope we all will succeed in our goal and will have hundreds, thousands, and — who knows? — maybe even millions years of healthy life!

Hudson: It is kind of you to say so, but I only consider myself fortunate to be working with the really great men and women in the anti-aging community who are doing the real work. I’m only trying to facilitate their efforts and get treatments to the clinic as fast as possible. I don’t know what will be possible in the long term, but anything will be better than letting nature run its course, producing sickness and declining functional health.

Ariel VA Feinerman is a researcher, author, and photographer, who believes that people should not die from diseases and ageing, and whose main goal is to improve human health and achieve immortality.

Message from Ariel VA Feinerman: If you like my work, any help will be appreciated!

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