MOTS-c (Mitochondrial ORF of the 12S rRNA Type-C) is a 16-amino acid mitochondrial-derived peptide encoded within the mitochondrial genome. It translocates to the nucleus under metabolic stress to regulate gene expression, functions as a mitochondrial hormone in circulation, and declines with age. Below is a curated selection of peer-reviewed studies investigating its properties.

2025

MOTS-c Restores Mitochondrial Respiration in the Type 2 Diabetic Heart

PMC / Frontiers in Physiology

This study demonstrated that MOTS-c treatment restored mitochondrial respiration, reduced fasting blood glucose, and improved cardiac function in type 2 diabetic rats. MOTS-c activated AMPK signalling, improved insulin sensitivity, and upregulated GLUT4 expression in skeletal muscle, positioning it as a promising metabolic research agent.

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2025

Reduced Serum Levels of MOTS-c in Patients with Obstructive Sleep Apnea

PMC / Sleep and Biological Rhythms

This clinical study investigated the relationship between circulating MOTS-c levels and obstructive sleep apnea severity. Patients with OSA showed significantly reduced serum MOTS-c compared to controls, suggesting MOTS-c may play a role in mediating the metabolic and oxidative stress consequences of sleep-disordered breathing.

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2023

MOTS-c: A Promising Mitochondrial-Derived Peptide for Therapeutic Exploitation

PMC / Frontiers in Endocrinology

This comprehensive review covers MOTS-c’s discovery, physiological functions, and therapeutic applications across aging, cardiovascular disease, insulin resistance, and inflammation. The authors discuss MOTS-c’s nuclear translocation mechanism under metabolic stress and its potential integration with synthetic biology for clinical development.

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2022

MOTS-c, the Most Recent Mitochondrial Derived Peptide in Human Aging and Age-Related Diseases

PMC / International Journal of Molecular Sciences

This review examines MOTS-c’s role across age-related conditions including diabetes, cardiovascular disease, osteoporosis, postmenopausal obesity, and Alzheimer’s disease. It details how MOTS-c levels decline with age and how supplementation in animal models has demonstrated beneficial effects across multiple disease pathways.

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2021

MOTS-c is an Exercise-Induced Regulator of Aging Metabolic Homeostasis and Physical Capacity

PMC / Cell Metabolism

This study identified MOTS-c as a mitochondrial-encoded regulator of exercise capacity and metabolic homeostasis. Circulating MOTS-c increased with exercise and declined with age in mice. MOTS-c administration improved physical capacity and reversed age-dependent insulin resistance, supporting its designation as a “mitokine” with systemic regulatory functions.

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2024

The Correlation Between Mitochondrial Derived Peptide MOTS-c and Metabolic States: A Systematic Review and Meta-Analysis

Diabetology & Metabolic Syndrome (Springer)

This systematic review and meta-analysis synthesised evidence on blood MOTS-c concentrations across metabolic conditions. It found consistent associations between reduced circulating MOTS-c and metabolic dysfunction, supporting MOTS-c as a measurable biomarker and potential therapeutic target in metabolic disease research.

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