Longevity Peptides: Research Compounds for Aging & Cellular Studies
Longevity peptides represent one of the fastest-growing categories in contemporary peptide research. These compounds are studied in preclinical models for their interactions with fundamental cellular aging mechanisms — telomere maintenance, mitochondrial efficiency, senescent cell accumulation, and NAD+ metabolism. The category spans multiple distinct mechanisms of action, reflecting the complexity of aging biology at the molecular level.
Compounds in This Category
NAD+
Nicotinamide Adenine Dinucleotide precursors studied for their role in sirtuin activation and cellular energy metabolism across multiple model organisms.
Epitalon
A synthetic tetrapeptide studied in the context of telomerase regulation and pineal gland function in cell culture and animal models.
SS-31
A mitochondria-targeted tetrapeptide (Elamipretide) studied for its interaction with cardiolipin in the inner mitochondrial membrane.
FOXO4-DRI
A peptide designed to disrupt the FOXO4-p53 interaction, studied for its effects on cellular senescence markers in aged murine models.
MOTS-c
A mitochondria-derived peptide studied for its role in metabolic homeostasis and exercise-mimetic signaling in murine models.
Research Context
The longevity peptide category is anchored by several landmark publications that have shaped the field. MOTS-c was first described in a 2015 Cell Metabolism paper that identified it as a mitochondrial-derived peptide capable of regulating metabolic homeostasis in mouse models — a finding that opened an entirely new class of signaling molecules encoded within mitochondrial DNA (PMID: 25773831).
FOXO4-DRI emerged from a 2017 Cell publication demonstrating that a D-retro-inverso peptide targeting the FOXO4-p53 interaction could selectively affect senescent cells in aged mice. The study observed restoration of fur density, renal function parameters, and exploratory behavior in treated animals — findings that generated substantial interest in the senolytic research community (PMID: 28340349).
SS-31 (Elamipretide) represents the mitochondria-targeted approach to aging research. Its mechanism involves binding to cardiolipin, a phospholipid unique to the inner mitochondrial membrane that plays a critical role in electron transport chain organization. Preclinical studies have examined SS-31's effects on mitochondrial efficiency, reactive oxygen species production, and ATP generation (PMID: 26686386).
Epitalon research dates to work conducted at the St. Petersburg Institute of Bioregulation and Gerontology, where studies in cell culture models examined the tetrapeptide's effects on telomerase activity. Published findings in Bulletin of Experimental Biology and Medicine reported observed increases in telomerase activity in human somatic cell cultures exposed to Epitalon (PMID: 12937682).
NAD+ precursor research has expanded dramatically following key publications establishing the relationship between declining NAD+ levels and age-related cellular changes. A 2018 review in Cell Metabolism synthesized findings across yeast, worm, fly, and mammalian models examining the NAD+-sirtuin axis and its role in cellular maintenance pathways (PMID: 29514064).
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