Humanin: a harbinger of mitochondrial-derived peptides?
Lee. Changhan C; Yen. Kelvin K; Cohen. Pinchas P
Key Findings
- Humanin is the first identified mitochondrial-derived peptide (MDP) with strong cell‑protective effects.
- MDPs act as retrograde signals, meaning mitochondria can communicate with the rest of the cell to influence health outcomes.
- Studying humanin and related peptides may uncover new therapeutic targets for diseases linked to mitochondrial dysfunction.
Practical Outcomes
- For biohackers, the takeaway is that humanin is a promising molecule worth watching, but there are no ready‑to‑use protocols yet. Current evidence suggests potential anti‑aging and protective benefits, so future supplements or interventions may emerge, but more research is needed before practical application.
Summary
Humanin is a tiny protein that comes from mitochondria and appears to protect cells from stress and disease. Researchers think it could be part of a larger group of mitochondrial peptides that send signals back to the cell, influencing health and aging. While the idea is exciting, the paper mainly discusses the concept and potential, without giving concrete dosing or treatment guidelines.
Abstract
Mitochondria have been largely considered as 'end-function' organelles, servicing the cell by producing energy and regulating cell death in response to complex signals. Being cellular entities with vital roles, mitochondria communicate back to the cell and actively engage in determining major cellular policies. These signals, collectively referred to as retrograde signals, are encoded in the nuclear genome or are secondary products of mitochondrial metabolism. Here, we discuss humanin, the first small peptide of a putative set of mitochondrial-derived peptides (MDPs), which exhibits strong cytoprotective actions against various stress and disease models. The study of humanin and other mitochondrial-derived retrograde signal peptides will aid in the identification of genes and peptides with therapeutic and diagnostic potential in treating human diseases.
Study Information
pubmed
2013
2013-02-08T00:00:00.000Z
10.1016/j.tem.2013.01.005
240
59