MOTS-c (Mitochondrial Open Reading Frame of the 12S rRNA-c)
Mitochondrial-Derived Peptide · Metabolic Regulator
Overview
MOTS-c is a mitochondrial-derived peptide that operates as a mitohormone through the Folate-AICAR-AMPK pathway. Under metabolic stress, it translocates to the nucleus to bind stress-response transcription factors (NRF2, ATF1/ATF7), regulating genes involved in metabolism and cellular adaptation.
Inhibits the folate cycle leading to AMPK activation. Under metabolic stress, translocates to nucleus to bind stress-response transcription factors, regulating genes involved in metabolism, insulin sensitivity, and cellular adaptation.
Improves insulin sensitivity by ~30% in animal studies through AMPK activation.
Restores metabolic function via insulin receptor sensitization.
Promotes fatty acid oxidation despite identical caloric intake.
Mechanism
MOTS-c is a mitochondrial-derived peptide that operates as a mitohormone through the Folate-AICAR-AMPK pathway. Under metabolic stress, it translocates to the nucleus to bind stress-response transcription factors (NRF2, ATF1/ATF7), regulating genes involved in metabolism and cellular adaptation.
Inhibits the folate cycle leading to AMPK activation. Under metabolic stress, translocates to nucleus to bind stress-response transcription factors, regulating genes involved in metabolism, insulin sensitivity, and cellular adaptation.
Improves insulin sensitivity by ~30% in animal studies through AMPK activation.
Research areas
- MOTS-c is a mitochondrial-derived peptide that operates as a mitohormone through the Folate-AICAR-AMPK pathway. Under metabolic stress, it translocates to the nucleus to bind stress-response transcription factors (NRF2, ATF1/ATF7), regulating genes involved in metabolism and cellular adaptation.
- Inhibits the folate cycle leading to AMPK activation. Under metabolic stress, translocates to nucleus to bind stress-response transcription factors, regulating genes involved in metabolism, insulin sensitivity, and cellular adaptation.
- Improves insulin sensitivity by ~30% in animal studies through AMPK activation.
- Restores metabolic function via insulin receptor sensitization.
- Promotes fatty acid oxidation despite identical caloric intake.
Research notes
- Generally well-tolerated in animal studies with minimal side effects
- Mild injection site reactions (redness, swelling)
- Severe allergic reactions or anaphylaxis
- Recurrent hypoglycemia (<50 mg/dL)
- Persistent severe injection site reactions
References
- pubmed.ncbi.nlm.nih.gov/34798268/
- pubmed.ncbi.nlm.nih.gov/25738453/
- pubmed.ncbi.nlm.nih.gov/29983246/
- pubmed.ncbi.nlm.nih.gov/33473109/
- pubmed.ncbi.nlm.nih.gov/35808870/
Questions
How does MOTS-c help with insulin resistance?
MOTS-c activates AMPK, a cellular energy sensor that improves insulin sensitivity by approximately 30% in animal studies. It works through the Folate-AICAR-AMPK pathway, enhancing glucose uptake in muscle tissue. This addresses metabolic dysfunction at the mitochondrial level.
Does MOTS-c work for weight loss?
Indirectly. MOTS-c promotes fatty acid oxidation despite identical caloric intake, improving metabolic flexibility. Combined with exercise and diet, it the body's ability to burn fat for fuel. It's not a direct weight-loss peptide like GLP-1 agonists, but supports metabolic health.
Can MOTS-c extend lifespan in humans?
Unknown in humans. Animal studies show 6.4% median lifespan extension in mice. MOTS-c clearly supports healthspan and metabolic optimization, but human longevity data doesn't exist. It's a longevity-supporting compound, not a proven life-extension drug.
Should I take MOTS-c before or after exercise?
Morning before exercise is optimal. MOTS-c activates AMPK within 30 minutes, enhancing exercise performance by 12-15% in studies. Post-workout benefits are also seen for recovery. However, pre-exercise timing maximizes the performance during the workout itself.