Cortagen Research Compound — AEDP Brain Cortex Peptide Bioregulator

Cortagen (AEDP, Ala-Glu-Asp-Pro, MW ~430 Da, C₁₇H₂₆N₄O₉) belongs to the Khavinson short peptide bioregulator family — a class of 2-4 amino acid cytomedines isolated from or modeled on specific organ tissues, developed at the Institute of Bioregulation and Gerontology, St. Petersburg, Russia. The cytomedine hypothesis (Khavinson and Morozov, 1980s–present) proposes that short peptide fractions isolated from specific tissues exert tissue-specific regulatory effects: binding to chromatin/DNA and modulating gene expression in corresponding target tissues, with proposed applications in restoring age-associated decline in tissue-specific gene expression programs. Cortagen is derived from brain cortex tissue, and its research is focused on neural tissue regulation. In published studies from the Institute of Bioregulation and Gerontology, Cortagen (AEDP) has been investigated for its interaction with neuronal DNA, promotion of nerve fiber regeneration in peripheral nerve injury models, and antioxidant properties in CNS tissue preparations.

Published research on Cortagen spans several domains. In neuroprotection studies, Cortagen has been investigated in models of ischemia-reperfusion injury, where it was shown to reduce neuronal apoptosis markers and provide cytoprotective effects in cortical neuron preparations. In regeneration research, peptide bioregulators including Cortagen have been studied in peripheral nerve crush injury models for effects on axonal regeneration rate and functional recovery. Khavinson's group has also published on epigenetic mechanisms for the short peptide class: these compounds bind to specific DNA chromatin regions, and the group proposes they activate silenced gene promoters as part of a tissue-repair epigenetic mechanism. The sequence Ala-Glu-Asp-Pro (AEDP) shares the AED prefix with Epitalon (AEDG), suggesting structural conservation across brain-targeting Khavinson bioregulators. The Asp-Pro (DP) dipeptide at positions 3-4 is proposed as a chromatin-binding motif within the Khavinson research framework.

As a research reagent, Cortagen (AEDP) is used in investigations of neuroprotection, neural regeneration, short-peptide epigenetic regulation of gene expression, aging-associated CNS biology, and comparative cytomedine pharmacology. It complements research use of other Khavinson bioregulators (Pinealon for pineal tissue regulation, Vilon for thymus/immune regulation, Epitalon for pineal telomerase/circadian research) as part of the broader short-peptide bioregulator research toolkit. DMV Research supplies Cortagen as a lyophilized compound with per-batch Certificate of Analysis confirming identity by mass spectrometry and purity ≥99% by HPLC.