Peptide Bioregulator Theory
Peptide bioregulators (cytomedines) are short peptides (2–4 amino acids) derived from tissue-specific proteins that regulate gene expression in corresponding tissues. Developed by Vladimir Khavinson's group over 40 years of research, the bioregulator concept proposes that:
- Each tissue produces specific regulatory peptides
- These peptides decline with age
- Supplementing with synthetic equivalents can restore tissue-specific gene expression
- Effects are tissue-specific but not species-specific (bovine-derived peptides active in humans)
Key Peptide Bioregulators
| Peptide | Tissue Origin | Primary Research Area |
|---|---|---|
| Epithalon (AEDG) | Pineal gland | Telomere, longevity |
| Thymalin | Thymus | Immune function |
| Cortagen (AEDL) | Cerebral cortex | Neuroprotection |
| Vilon (LysTrp) | Thymus | Immune aging |
| Cardiogen (AEDR) | Heart | Cardiac protection |
| Livagen (KEDW) | Liver | Hepatoprotection |
Mechanism of Gene Regulation
Khavinson proposed that short peptides interact with DNA regulatory sequences (promoters, enhancers) or histone proteins to modulate gene transcription. Key evidence:
- Di- and tetrapeptides have been shown to bind specific DNA sequences in vitro
- Conformational DNA changes following peptide binding alter transcription factor access
- Epithalon specifically increases hTERT promoter activity
- Effects are self-limiting (physiological, not supraphysiological)
Epigenetic Mechanisms
Recent research suggests peptide bioregulators may work partly via epigenetic mechanisms:
- DNA methylation changes at CpG sites following peptide treatment
- Histone acetylation modifications
- Chromatin remodeling enabling transcription factor binding
This provides a molecular basis for the tissue-specificity and self-limiting nature of bioregulator effects.
Epithalon as Research Model
Epithalon (AEDG) is the most studied of the peptide bioregulators and serves as a model compound for investigating the broader bioregulator hypothesis. Its defined sequence, reproducible effects, and 50mg research vial format make it ideal for laboratory investigation.
Epithalon 50mg from our verified supplier — for laboratory research only.