What researchers study it for

• Chromatin compaction in lymphocytes from elderly donors
• Rat prostate tissue kept in culture
• Computer modeling of binding to peptide transporters

How it is thought to work

No mechanism has been established. When lymphocytes from donors aged 75 to 88 were cultured with Prostamax, tightly packed chromatin reportedly opened up and ribosomal genes switched on, which the authors interpret as reactivation of genes silenced with age. A docking study on the computer suggests KEDP might bind the LAT and PEPT1 transporters, but none of the papers we read tests that in the lab.

Where the research stands

Preclinical, with a very small body of literature. A PubMed search under this name turns up just six records, several of them in Russian. The experimental ones are cell or tissue-culture studies from the St. Petersburg group and collaborators in Tbilisi. ClinicalTrials.gov lists no human trials, and no FDA-approved product exists.

Sources

1. Khavinson VKh, Lezhava TA, Malinin VV. (2004). Effects of short peptides on lymphocyte chromatin in senile subjects. Bulletin of Experimental Biology and Medicine.
2. Dzhokhadze TA, et al. (2012). [Deheterochromatinization of the chromatin in old age induced by oligopeptide bioregulator (Lys-Glu-Asp-Pro)]. Georgian Medical News.
3. Khavinson VK, et al. (2023). Feasibility of Transport of 26 Biologically Active Ultrashort Peptides via LAT and PEPT Family Transporters. Biomolecules.
4. Zakutskiĭ AN, et al. (2006). [The tissue-specific effect of synthetic peptides-biologic regulators in organotypic tissues culture in young and old rats]. Advances in Gerontology (Uspekhi Gerontologii).

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