Growth hormone-releasing peptide-biotin conjugate stimulates myocytes differentiation through insulin-like growth factor-1 and collagen type I
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Updated: Apr 17, 2026

Treatment of Ligament Constructs with Exercise-conditioned Serum: A Translational Tissue Engineering Model
Published on: June 11, 2017
Chae Jin Lim1, Jung Eun Jeon2, Se Kyoo Jeong2
1Department of Microbiology and Molecular Biology, School of Bioscience and Biotechnology, Chungnam National University, Daejeon 34134, Korea; Peptide R&D Center, Incospharm Corporation, Daejeon 34141, Korea.
Abstract:
Based on the potential beneficial effects of growth hormone releasing peptide (GHRP)-6 on muscle functions, a newly synthesized GHRP-6-biotin conjugate was tested on cultured myoblast cells. Increased expression of myogenic marker proteins was observed in GHRP-6-biotin conjugate-treated cells. Additionally, increased expression levels of insulin-like growth factor-1 and collagen type I were observed. Furthermore, GHRP-6-biotin conjugate-treated cells showed increased metabolic activity, as indicated by increased concentrations of energy metabolites, such as ATP and lactate, and increased enzymatic activity of lactate dehydrogenase and creatine kinase. Finally, binding protein analysis suggested few candidate proteins, including desmin, actin, and zinc finger protein 691 as potential targets for GHRP6-biotin conjugate action. These results suggest that the newly synthesized GHRP-6-biotin conjugate has myogenic stimulating activity through, at least in part, by stimulating collagen type I synthesis and several key proteins. Practical applications of the GHRP-6-biotin conjugate could include improving muscle condition.
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