Yamanaka Factors - The Secret To Living Forever?
In a Nutshell
Yamanaka factors—four proteins discovered by Shinya Yamanaka—reset epigenetic markers on DNA, reversing cellular aging by turning mature cells youthful without full stem cell conversion, as shown in mice (equivalent to 250+ human years) with reversed wrinkles, blindness, and systemic rejuvenation. David Sinclair's company and Altos Labs ($10B funded) are in clinical trials for molecular cocktails targeting diseases like glaucoma and heart failure, aiming for systemic treatments to maintain youth indefinitely. Timeline: 10-20 years to longevity escape velocity; exercise and fasting currently improve epigenomes, with trials underway on human cells.
These notes were generated by AI and may contain inaccuracies.
Speaking of prospering, how far off are we from age reversal? That's one I'm most excited about. Have you looked at Yamanaka factors? David Sinclair's been on and is tangentially associated with it.
Every cell in our body has the same DNA, copied via mitosis from the womb to today. What makes an eye cell different from a skin cell, brain cell, tongue, or feet? Cells differ because genes in the DNA are on or off. These are molecular switches (epigenetic markers) that sit on DNA, blocking genes or allowing them to produce RNA copies turned into proteins.
Zeros and ones.
Each gene makes a unique protein; proteins are molecular machines constantly working in the cell, making cells different based on which genes are on or off.
Cell complexity: Imagine a cell the size of Manhattan with 500-story tall buildings; every person is a protein—10 billion people living there, going between buildings, up and down all day, building, breaking, working non-stop, having coffee, collaborating. That's one second in one cell, running for 80 years.
As we age, DNA gets damaged from radiation, sunlight, bad eating, alcohol. Cells fix DNA with repair proteins, but each fix risks moving epigenetic markers (ones and zeros). Over time, wrong genes turn on, right genes turn off, causing cells to malfunction: eye cells stop working properly, heart cells lose electrical cascade, skin cells wrinkle.
Enough epigenetic errors lead to wrinkles, heart failure, blindness. Aging is a disease rooted in epigenetic factors moving to wrong places; root of all disease may be aging.
In 2006, Shinya Yamanaka found four proteins that, when introduced to a cell, reset all epigenetic markers, turning it into a stem cell that can become any cell type. He won the Nobel Prize.
In 2016, another scientist showed using a small amount of these four proteins (instead of a lot) partially resets markers without full stem cell conversion, rejuvenating the cell: retinal cell becomes young retinal cell, skin cell young skin cell, heart cell young heart cell.
In mice aged to equivalent of 250+ years, wrinkles reversed in monkeys, blindness reversed by targeting retinal cells.
This is Sinclair's stuff, right?
Sinclair has a company in clinical trials. Dozens of others; Altos Labs raised ~$10 billion to pursue this.
Discovering not just four proteins but cocktails of molecules (drink, shot, pill) that enter cells and reset epigenome to youthful state. Starting locally for diseases like blindness, glaucoma, rheumatoid arthritis, heart issues.
Over time, systemic treatment: continuously release proteins inside body as needed to maintain youth, live as long as wanted. Works in animal models; can redose. Done systemically in mice (equivalent to 200+ human years). Early stage—no optimization of molecules, delivery, dosing, method yet.
Every year extending average human lifespan adds tens of trillions to GDP. Not just longevity, but health, energy, happiness, reduced pain/disease. Potential reversal of cancer proliferation, diabetes—diseases rooted in epigenome failure.
Compounds with free energy, AI automation, infinite labor. Leads to abundance: more options like yoga instructor, podcaster, wedding photographer—joyful, productive lives vs. limiting corporate/factory jobs.
Way less than one or five decades. In clinical trials now on cocktails. Works in human cells in vitro. Over next 10-20 years, proliferates.
Peter Diamandis' longevity escape velocity: stay alive every year to gain more lifespan; cross threshold for indefinite extension. Best long-termist health view—hold on. Past had no point (70-80 years, playing with 5-10 years), now difference could be 80 to 100/120.
Number one: exercise—releases molecules addressing epigenome, making youthful. Fasting helps. Peptides show effect. Other ways to edge toward youth before big products.
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