Oliver's mTOR Atlas Evidence Platform
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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.

Losing Drosophila Sestrin produces fat accumulation, mitochondrial dysfunction, muscle degeneration and cardiac malfunction, all prevented by inhibiting TOR or activating AMPK. Sestrin therefore limits age-associated pathology in the fly.

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

YearEvidenceStudy
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.

“Inhibits” describes the effect on the target's activity, not on how much of it there is.

“How settled” describes how far researchers in the field agree. It is not the same as the sign-off above, which only says whether a named curator has checked this page.

If this link rests on your own work: a click on “This looks right” below, or a short note through “Report an error”, helps us more than anything else on this page.

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