Humanin Peptide

Key Highlights

• Mitochondrial Signaling Powerhouse: Belongs to a novel class of mitochondrial-derived peptides (MDPs) that regulate systemic metabolism, cellular survival, and stress resistance.

• Cellular Protection & Anti-Apoptosis: Acts directly on cell-surface receptors (such as FPRL1 and STAT3 pathways) to protect cells against oxidative stress, ischemia, and apoptosis.

• Metabolic & Insulin Sensitivity Support: Research indicates positive regulatory effects on glucose homeostasis, insulin signaling, and lipid metabolism.

• Neuroprotection & Longevity Research: Extensively studied for its role in mitigating neurodegenerative pathways and supporting healthy aging at a cellular level.

Mechanism of Action

Humanin exerts its protective and regulatory effects through multiple signaling cascades:

1. Receptor Interaction: Binds to cell-surface heterotrimeric G-protein-coupled receptors (including FPRL1 / FPR2) and forms functional complexes with IGFBP-3.

2. Survival Pathway Activation: Modulates intracellular survival signaling, notably via the STAT3, PI3K/Akt, and MAPK pathways, to prevent cell death.

3. Mitochondrial and Oxidative Defense: Reduces intracellular reactive oxygen species (ROS) accumulation and preserves mitochondrial integrity under stress.