Cellular senescence & senolytics
One of 6 mechanistic pathways to ⏳ Longevity & healthspan · 7 options
Senescent cells stop dividing but refuse to die, and they secrete an inflammatory cocktail — the SASP — that drives ageing in neighbouring tissue. Transplanting senescent cells into young mice causes age-related dysfunction; clearing them reverses it. The mechanism is unusually well demonstrated. The human dosing is guesswork.
Senescent cells signal through inflammation — the SASP — so inflammatory markers are the closest available proxy for senescent burden. Dasatinib in particular needs a full blood count and liver panel before and after, not as a formality.
hs-CRP (High-Sensitivity C-Reactive Protein)ESR (Sed Rate)TNF-AlphaComplete Blood Count (CBC) with DifferentialComprehensive Metabolic Panel (CMP)🔥 Inflammation Deep Dive covers these in one panel →
What engages this pathway
Ordered by how directly each one acts on the mechanism above — never by how much trial evidence exists. Each links to its full breakdown with dosing, half-life and vendor.
💉 Dasatinib + Quercetin
The canonical senolytic combination — D+Q clears senescent cells in mice and improves physical function and lifespan. Small human pilots in idiopathic pulmonary fibrosis and diabetic kidney disease showed reduced senescent-cell burden. Dasatinib is a chemotherapy agent with a real toxicity profile, and intermittent hit-and-run dosing is the whole design.
🧬 Fisetin
The senolytic with the best safety-to-effect ratio — extended lifespan in the ITP and clears senescent cells in multiple tissues. Human trials at the Mayo Clinic are ongoing. Bioavailability is poor, which is why the doses discussed are so high.
💉 Foxo4-DRI
A designed peptide that disrupts the FOXO4-p53 interaction senescent cells use to avoid apoptosis. In old mice it restored fur density, renal function and fitness. Spectacular preclinical result, no human data at all, and the peptide is notoriously unstable.
🧬 Quercetin
The Q in D+Q. Weak alone as a senolytic; the phytosome form addresses its famously poor absorption.
🧬 Curcumin
Suppresses the SASP inflammatory output rather than killing the cells — senomorphic rather than senolytic, which is a gentler and more sustainable approach.
🧬 Luteolin
Another senomorphic flavonoid targeting SASP signalling.
🧬 Tocotrienols
Delta-tocotrienol shows senolytic activity in preclinical models.
The other 5 routes to longevity & healthspan
Pick the pathway that matches where you are actually stuck. An appetite drug does nothing for someone who already undereats.
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Frequently asked questions
Senescent cells stop dividing but refuse to die, and they secrete an inflammatory cocktail — the SASP — that drives ageing in neighbouring tissue. Transplanting senescent cells into young mice causes age-related dysfunction; clearing them reverses it. The mechanism is unusually well demonstrated. The human dosing is guesswork.
7 options are mapped to this pathway in the Vault, including Dasatinib + Quercetin, Fisetin, Foxo4-DRI, Quercetin. They are grouped by the mechanism they act through rather than ranked by how much trial evidence exists — 0 carry clinical validation and 7 are mechanistic predictions.
Senescent cells signal through inflammation — the SASP — so inflammatory markers are the closest available proxy for senescent burden. Dasatinib in particular needs a full blood count and liver panel before and after, not as a formality. The markers worth checking are hs-CRP (High-Sensitivity C-Reactive Protein), ESR (Sed Rate), TNF-Alpha, Complete Blood Count (CBC) with Differential.
Unproven is not the same as ineffective. Of the 7 options on this pathway, 0 have clinical validation and 7 are graded theoretical — meaning the mechanism is sound but the specific human trial has not been run, which is true of a great deal of what works in this space. Nothing on this page is ordered by evidence tier, because sorting by trial count would bury the compounds you came looking for.