The abstract is read at the publisher; the summary is JClub's.
p53 activates chaperone-mediated autophagy (CMA) to drive lysosomal degradation of IDH1 and IDH2, lowering α-ketoglutarate and suppressing lung and liver cancer growth.
- Why it matters: The way p53 restrains cancer initiation and progression is not fully explained, and CMA regulation and function in this context remain unclear.
- What they did: The study shows p53 as a central CMA activator, where AMPK inhibits CMA by blocking LAMP2A oligomerization, and cytoplasmic p53 relieves this inhibition.
- The result: Activating CMA reduces α-ketoglutarate, inhibits reductive glutamine metabolism, and suppresses growth of lung and liver cancers; tumor p53 mutants and oncogenic IDH1/2 mutants fail to engage this pathway.
The findingWhy it mattersWhat they didThe result
AI summary of the abstract · may contain errors · not medical advice · read the paper.