Mitochondrial-derived peptide

MOTS-c

A mitochondrial-derived "mitokine" studied as an exercise-mimetic and metabolic regulator.

Mostly preclinical

At a glance

Sequence
16-amino-acid peptide encoded in mitochondrial 12S rRNA
Molecular weight
CAS
Class
Mitochondrial-derived peptide
Aliases

Overview

A 16-mer encoded within mitochondrial DNA, discovered in 2015.

Studied for insulin sensitivity, metabolic flexibility and exercise adaptation. A Phase 2a prediabetes trial marks its move toward human outcomes.

Mechanism

Activates AMPK and, under metabolic stress, translocates to the nucleus to regulate stress-adaptation genes.

Research

What the studies show

MOTS-c restores mitochondrial respiration in T2D heart

Various · Frontiers in Physiology · 2025 · Preclinical

In a type-2-diabetes rat model, MOTS-c improved cardiac mitochondrial respiration and delayed weight gain.

Mitochondrial-derived peptides and the exercise response

Atakan MM, et al. · The Journal of Physiology · 2024 · Review

Reviews mitochondrial-derived peptides and MOTS-c's role in metabolism and the exercise response.

MOTS-c and skeletal-muscle atrophy

PMID 38170165 · Preclinical · 2024 · Preclinical

MOTS-c attenuated immobilisation-induced muscle atrophy by suppressing lipid infiltration.

Phase 2a prediabetes trial

Trial registry · Clinical trial registry · 2026 · Clinical trial registry

The first controlled human outcome study; defines what should be measured and separates mechanism from hype.

Discovery of MOTS-c

Lee C, et al. · Cell Metabolism · 2015 · Foundational

The original discovery paper describing MOTS-c and its AMPK-linked metabolic effects.

Evidence summary

Built on robust, consistent preclinical evidence for metabolic and exercise-related benefits, with its first controlled human trial now underway - one of the most exciting frontiers in mitochondrial and longevity research.