Pathway link SESN2-AGING
Sestrin2 Age-related pathology
Sestrin2 inhibits Age-related pathology.
The only case in this atlas linking a nutrient sensor to ageing of a whole animal: fruit flies without this sensor build up fat and develop muscle and heart problems, and blocking this pathway or switching on AMPK prevents it. So the sensor holds age-related damage back. Watch what was measured – how sick the flies got, not how long they lived.
The conditions it holds under
Fly only, and the readout is age-related pathology: survival was never measured. No mammalian sensor-to-ageing evidence exists in this corpus.
- Time it takes
- long exposure (days to weeks)
- Step
- indirect (through steps not drawn here)
- Measured in
- fly
- Reaches people?
- not tested in people
- How settled
- emerging, few independent studies
Studies behind it
| Year | Evidence | Study |
|---|---|---|
| 2010 | A | Sestrin as a feedback inhibitor of TOR that prevents age-related pathologiesLEE2010 An early study linking Sestrin, later identified as a leucine sensor in mammals, to age-associated pathology in flies (fat accumulation, mitochondrial dysfunction, muscle and cardiac decline), prevented by TOR inhibition or AMPK activation. Sestrin sits in a negative feedback loop: TOR activity drives Sestrin expression, and Sestrin inhibits TOR back. |
Points the other way
No study in the Atlas contradicts this link. That means none in this curated set, not none in the literature.
Who has checked this
- Checked by
- No researcher outside the project has checked this link yet.
- Curator sign-off
- Not signed off yet. This link was drafted with AI help and has not been reviewed link by link; treat it as a proposal until it is.
- Curated by
- Oliver Barton, with AI help for drafting; see how links are checked.
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