MOTS-c

MOTS-c Anti-Aging & Longevity Profile

MOTS-c serves as a foundational element within life extension research, specifically designed to interdict genetic degradation, preserve mitochondrial function, and aggressively target senescent cell buildup.

Pharmacological Profile

Parameter	Value
Molecular Formula	C101H152N28O22S2
Molecular Mass	2174.6 g/mol
Assay Purity	>98.5%
Appearance	White crystalline cake

Figure 1: MOTS-c Cellular Transduction Representation

Genomic Mechanism of Action

Observations of the exact signaling cascade leading to its theoretical longevity effects:

1. Unique originating source: Encoded by the mitochondrial genome rather than the cellular nucleus.
2. Heavily targets skeletal muscle tissue, moving into the nucleus to regulate gene expression.
3. Directly activates AMP-activated protein kinase (AMPK), the body's 'energy sensor'.
4. Forces cells into an immediate catabolic, energy-producing state regardless of insulin.
5. Promotes the biogenesis of new, highly efficient cellular mitochondria.

Figure 2: Empirical Longevity Outcomes & Age Reversal Metrics

Primary Research Vectors

• Study 1: Often termed an 'exercise mimetic' for its ability to simulate physical exertion adaptions.
• Study 2: Reverses insulin resistance and diet-induced obesity in laboratory studies.
• Study 3: Significantly boosts peak physical performance and resistance to metabolic stress.

Mitochondrial-Derived Peptide: A New Class of Signaling Molecule

MOTS-c belongs to an entirely new category of bioactive molecules—mitochondrial-derived peptides (MDPs)—encoded within the mitochondrial genome rather than the nuclear genome. This discovery (Lee et al., Cell Metabolism, 2015) overturned the longstanding assumption that mitochondrial DNA only encodes for 13 electron transport chain subunits, 22 tRNAs, and 2 rRNAs. MOTS-c is encoded within the 12S rRNA gene and is translated in the cytoplasm after mitochondrial mRNA export. Its existence reveals a previously unknown mitochondria-to-nucleus communication pathway that regulates metabolic homeostasis.

1. MOTS-c is translated from an open reading frame within the mitochondrial 12S rRNA gene (MT-RNR1) on a cytoplasmic ribosome.
2. Under metabolic stress, MOTS-c translocates to the nucleus where it interacts with AMPK and regulates the expression of antioxidant response element (ARE)-driven genes.
3. In skeletal muscle, MOTS-c activates AMPK, increasing glucose uptake via GLUT4 translocation independently of insulin signaling.
4. MOTS-c inhibits the folate-methionine cycle by suppressing AICAR transformylase, redirecting one-carbon metabolism and activating AMPK through AICAR accumulation.
5. Circulating MOTS-c levels are exercise-responsive (increasing 50–100% after acute exercise) and decline with aging in both mice and humans.

Metabolic & Longevity Research

• Obesity Reversal: MOTS-c injections (5 mg/kg/day IP) completely prevented high-fat diet-induced obesity in mice and reversed existing obesity when administered to already-obese animals.
• Insulin Sensitization: Fasting glucose, insulin, and HOMA-IR all normalized in MOTS-c-treated insulin-resistant mice, independent of body weight changes.
• Exercise Mimetic: MOTS-c activates metabolic pathways normally engaged by physical exercise (AMPK, PGC-1α, mitochondrial biogenesis), earning it the “exercise mimetic” label.
• Lifespan Extension: Late-life MOTS-c treatment (begun at 23.5 months, equivalent to ~70 human years) improved physical performance and extended remaining lifespan in aged mice.
• Human Genetics: A common MOTS-c polymorphism (m.1382A>C) found in East Asian populations is associated with reduced type 2 diabetes risk, providing human genetic validation.