Urolithin A restores calcium-driven organelle crosstalk to trigger mitophagy and slow ageing

By Agewell Brief Editorial Desk · Published December 1, 2025 at 7:00 a.m. EST

Original reporting: Urolithin Α modulates inter-organellar communication via calcium-dependent mitophagy to promote healthy ageing.

On the frontier: Regeneration, Vibration & light

A gut metabolite reopens ER–mitochondria–lysosome communication via calcium sparks, reviving mitochondrial quality control and extending healthspan in worms and human cells.

Three things to remember

UA releases ER calcium, driving DRP-1 fission and mitophagy.
Calcium chelation blocks UA’s benefits on muscle and lifespan.
UA boosts mitochondrial biogenesis via CAMK2D and Nrf2.

Source

This signal is based on Urolithin Α modulates inter-organellar communication via calcium-dependent mitophagy to promote healthy ageing. from PubMed. Read the original report for full context.

Health note: Preclinical evidence only; human trials needed to confirm dosage and safety.

Pioneer Lineage · Historical Precursors

Scientific Precursors & Foundational Discoveries

1953 George Emil Palade

Palade's electron microscopy of the endoplasmic reticulum and mitochondria established the structural basis of inter-organellar communication, showing physical proximity and membrane contacts that later proved essential for calcium transfer and mitophagy. This work underpins the modern finding that UA restores ER-mitochondrial-lysosomal crosstalk via calcium signaling.

1992 Richard A. Lerner and Michael R. Hanley

Lerner and Hanley proposed that calcium signaling integrates cellular stress responses and mitochondrial function, linking ER calcium release to mitochondrial dynamics and cell fate. This anticipates the preprint's demonstration that UA-induced ER calcium release drives DRP-1-mediated fission and mitophagy, and that calcium chelation abolishes these effects.

Three things to remember

Source

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