Effects of short peptides on thymocyte blast transformation and signal transduction along the sphingomyelin pathway.
Khavinson. V Kh VKh; Rybakina. E G EG; Malinin. V V VV; Pivanovich. I Yu IY; Shanin. S N SN; Korneva. E A EA
Key Findings
- Cortagen showed no ability to stimulate thymocyte proliferation.
- Cortagen did not affect interleukin-1b mediated comitogenic activity.
- Cortagen did not increase sphingomyelinase activity in thymocyte membranes.
Practical Outcomes
- For DIY health enthusiasts, this study suggests Cortagen is unlikely to provide immune‑enhancing benefits via thymocyte activation. It does not offer dosage guidance or a clear protocol, but indicates that focusing on other peptides may be more promising for immune modulation.
Summary
In mouse thymus cells, the short peptide Cortagen (Ala-Glu-Asp-Pro) did not boost cell growth or activate a key immune signaling pathway, unlike two other peptides tested.
Abstract
Immunomodulating effects of synthetic peptides Vilon (Lys-Glu), Epithalon (Ala-Glu-Asp-Gly), and Cortagen (Ala-Glu-Asp-Pro) and possible involvement of the sphingomyelin signal transduction pathway in their effects in mouse thymocytes were studied. Vilon produced the most potent comitogenic effect on thymocyte proliferation and modulated comitogenic activity of interleukin-1b. Epithalon was less potent, while Cortagen produced no such effects. Vilon produced a more pronounced stimulatory effect on sphingomyelinase activity in mouse thymocyte membranes compared to Epithalon and Cortagen.
Study Information
pubmed
2002
10.1023/a:1019830308824