- Mitochondrial-derived signalling peptide
- Encoded within mitochondrial 12S rRNA
- Studied in skeletal-muscle and metabolic-stress pathways
- Exercise can alter endogenous MOTS-C concentrations in humans
- Intervention evidence remains predominantly preclinical
MOTS-C Research Overview
Mitochondrial-derived peptide and metabolic signalling research
Research Information & Evidence Summary
For laboratory and research use only. This material is provided for research information and is not medical advice, a dosing recommendation, or guidance for human or veterinary use.
Overview
MOTS-C is a mitochondrial-derived peptide encoded within mitochondrial 12S rRNA. It has been studied as part of a broader class of mitochondrial-derived peptides that may act as signalling molecules between mitochondria, cells and tissues.
Experimental work has focused on metabolic homeostasis, skeletal muscle, stress-response signalling, insulin sensitivity, ageing and exercise biology. Human observational and exercise-response data exist, but much of the intervention evidence remains preclinical and controlled therapeutic evidence in humans is limited.
How the research fits together
MOTS-C is studied as a mitochondrial-to-nuclear and inter-tissue signalling molecule. Research has linked it with cellular metabolic adaptation, AMPK-related pathways, glucose utilisation and stress responses.
Exercise studies suggest endogenous mitochondrial-derived peptides, including MOTS-C, can respond to acute exercise. Animal experiments have reported exercise-like metabolic adaptations after MOTS-C treatment, but these findings should not be interpreted as established human therapeutic effects.
Research evidence
| Study / source | Finding | Evidence level |
|---|---|---|
| Merry et al., 2021 review | Human exercise studies show acute exercise can increase MOTS-C in skeletal muscle/plasma; chronic training findings are inconsistent | Human observational + review |
| Lee et al., 2016 review | Summarised early evidence linking MOTS-C to skeletal-muscle glucose metabolism and metabolic signalling | Mechanistic / preclinical review |
| Systematic review, 2026 | Exercise-associated mitochondrial-derived peptide literature remains limited and heterogeneous; further controlled studies required | Systematic review |
Research comparison
| Feature | This research | Alternative |
|---|---|---|
| Feature | MOTS-C | Evidence context |
| Origin | Mitochondrial-derived peptide | Endogenous signalling biology |
| Research focus | Metabolism, muscle, stress and exercise | Strong mechanistic interest |
| Therapeutic evidence | Not established | Predominantly preclinical / exploratory human research |
Research considerations
- Human therapeutic safety and efficacy are not established
- Endogenous biology does not establish the safety of exogenous research material
- Exercise-associated observational changes are not proof of treatment benefit
- Research remains mechanistic and exploratory in many areas
- For laboratory and research use only