期刊
JOURNAL OF VETERINARY MEDICAL SCIENCE
卷 84, 期 4, 页码 494-501出版社
JAPAN SOC VET SCI
DOI: 10.1292/jvms.21-0662
关键词
KEYWORDS; chondroitin sulfate E; myoblast; myotube; N-cadherin
资金
- JSPS [JP17H03934]
In this study, the researchers investigated the mechanism underlying the suppression of myotube formation induced by chondroitin sulfate E (CS-E). They found that CS-E treatment downregulated N-cadherin, which may contribute to the inhibition of myotube formation.
Myogenesis, the formation of muscle fibers, is affected by certain glycoproteins, including chondroitin sulfate (CS), which are involved in various cellular processes. We aimed to investigate the mechanism underlying CS-E-induced suppression of myotube formation using the myoblast cell line C2C12. Differentiated cells treated with 0.1 mg/ml CS-E for nine days showed multinucleated and rounded myotubes with myosin heavy chain positivity. No difference was found between the CS-E-treated group with rounded myotubes and CS (-) controls with elongated myotubes in the levels of phospho-cofilin, a protein involved in the dynamics of actin cytoskeleton. Interestingly, N-cadherin, which is involved in the gene expression of myoblast fusion factors (myomaker and myomixer), was significantly downregulated at both the mRNA and protein levels following CS-E treatment. These results suggest that N-cadherin downregulation is one of the mechanisms underlying the CS-E-induced suppression of myotube formation.
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