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Why Senescent Cells Persist with Age: What Goes Wrong in Macrophage CMA Clearance

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Why do senescent cells persist as organisms grow older? A 2026 Nature Aging study shows that declining chaperone-mediated autophagy (CMA) alters the senescent secretome and blunts macrophage engulfment via SIRPα and CD47 signaling. While pharmacological CMA activation reduced senescent cell burden and fibrosis severity in mice, the findings remain strictly preclinical.

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  • A new version of the Terms of Service (2026-10-14) takes effect on 16 November 2026. Until then, the 2026-10-09 version applies
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v1.2.0

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