#004: The Matrix of Aging: ECM, Longevity, and Radical Life Extension – Alexander Fedintsev (Chief Science Officer at RLE Group)

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Jul 17, 2024

In this engaging discussion, Alexander Fedintsev, Chief Science Officer at RLE Group and a researcher in aging and longevity, explores the complexities of the extracellular matrix (ECM) and its pivotal role in lifespan. He discusses the interplay between aging, DNA mutations, and clonal hematopoiesis, highlighting the immune system's decline. Fedintsev proposes revolutionary approaches to repairing the ECM and emphasizes the importance of elastin for overall health. The conversation also touches on the challenges of cryopreservation and the potential of innovative therapies for radical life extension.

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ADVICE

Detoxify Adducts And Suppress Local Inflammation

Pursue catalytic antibodies or enzymes that specifically break glycation adducts without provoking damaging immune responses.
Meanwhile, repurpose anti‑inflammatory biologics to blunt localized ECM‑driven inflammation.

INSIGHT

Crosslinks Cause Pseudofibrosis And Senescence

Crosslinks make collagen insoluble and resistant to collagenase, mimicking fibrosis and accelerating senescence.
Insoluble collagen may trigger cellular senescence as an anti‑fibrotic response, linking ECM chemistry to aging phenotypes.

ADVICE

Design Mid‑Sized Molecules For Crosslinks

Explore oligomeric or mid‑sized chemical tools engineered to fit crosslink niches and cleave them specifically.
Combine small molecular gap‑opening with enzymes for controlled ECM remodeling.

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In this episode of the podcast, Co-directors of LBF, Nathan Cheng and Mark Hamalainen, interview Alexander Fedintsev, Chief Science Officer at RLE Group, to explore groundbreaking insights into ageing and longevity. Alexander delves into the intricate role of the extracellular matrix (ECM) and long-lived cells in the ageing process, sharing his journey into the field and his research on geroprotectors and ageing mechanisms. The conversation uncovers the complexity of ageing as an interconnected network, addressing programmed ageing and the challenges of repairing damage in non-dividing cells.

Key topics include the impact of ageing on the immune system, the exponential growth of clonal hematopoiesis, and the role of DNA mutations and mitochondria in ageing. Alexander highlights the potential of repairing the ECM for radical longevity, emphasizing the significance of elastin and potential approaches to ECM repair. The discussion also explores the potential of tissue replacement, particularly brain tissue, and the concept of cryopreservation, alongside its challenges and limitations. The episode underscores the need for functional biomarkers of ageing and an engineering mindset in the field. It identifies bottlenecks in ageing research, including the lack of commercial viability and the need for funding and support for bioengineering approaches. The conversation concludes with an optimistic outlook on the rate of progress and the potential for achieving radical life extension in the near future.

Links: https://www.researchgate.net/publication/232321881_Isolated_elastin_fibers_of_a_6-year-old_individual- https://www.researchgate.net/publication/232321947_Isolated_elastin_fibers_of_a_90-year-old_individual

here are more photos of elastin (different ages and diseases) https://www.sciencedirect.com/science/article/pii/S1568163721000027#fig0015

here's the paper on HSC transplantation: https://pubmed.ncbi.nlm.nih.gov/37377/- here's the paper about the extreme longevity of T-cells https://www.nature.com/articles/s41586-022-05626-9