MOTS-c
November 22, 2023Major Finding
7/10
Purrptide digest
MOTS-c is encoded by your mitochondrial DNA, not your regular nuclear DNA — a separate genome inside your cells, quietly making its own peptides. It acts like an exercise signal in pill form, activating the same metabolic pathways that physical activity triggers, even without the physical activity. Mice given MOTS-c late in life showed roughly 40% improvement in healthspan markers. The mitochondrial genome turning out to encode something this useful surprised the entire field.
What this means for you
🏃
If you care about weight/health
Exercise-mimetic effects without exercise sounds too good to be true, which is exactly why this deserves more human research before getting excited.
🩺
If you're a clinician
Activates AMPK, the same metabolic pathway exercise and metformin target. A genuinely novel entry point into a well-validated pathway.
🔬
If you're a researcher
Mitochondrial-genome-encoded peptides are a whole underexplored category. MOTS-c might just be the first one anyone noticed.
💸
If you follow biotech
A 40% healthspan improvement number in mice is the kind of headline that gets longevity biotech funding rounds moving.
RE
Reynolds et al.
University of Southern California
For the nerds
MOTS-c is an exercise-induced mitochondrial-encoded regulator of age-dependent physical decline
Nature Communications · DOI: 10.1038/s41467-020-20790-0
Read full paper on PubMed →