Research
Mitochondrial-derived peptides explained
MOTS-c, humanin, and the idea of mitochondria sending peptide signals—plain English for a trending research niche.
Peptides from mitochondrial DNA
Most genes live in the nucleus. Mitochondria have their own small genome, and scientists have found that it encodes short open reading frames that become functional peptides—MOTS-c is the best known. They are sometimes called mitochondrial-derived peptides (MDPs) or mitokines when they act like hormones between mitochondria and the rest of the body.
Why researchers care
Mitochondria power the cell. When they struggle, everything from insulin resistance to heart and muscle aging can follow. MDPs may be one way cells coordinate stress responses and metabolic flexibility. MOTS-c in particular has been studied for AMPK activation, fat oxidation, and exercise capacity in animals.
Not the same as supplement “mitochondrial support”
Retail supplements that say “mito support” usually mean CoQ10, PQQ, or B vitamins—not MOTS-c. If a vendor sells MOTS-c for injection, that is a research-peptide conversation with regulatory and safety risks, not a vitamin aisle product.
What to watch in the literature
Search PubMed for MOTS-c plus terms like insulin sensitivity, AMPK, or prediabetes. ClinicalTrials.gov lists human studies in metabolic disease. Cross-sectional papers that measure blood MOTS-c levels are interesting but do not prove that taking more MOTS-c helps. Intervention trials are the next step.