TGF-β Regulates Collagen Type I Expression in Myoblasts and Myotubes Via Transient and Expression
Overview
Biophysics
Cell Biology
Molecular Biology
Authors
Affiliations
Transforming Growth Factor β (TGF-β) is involved in fibrosis as well as the regulation of muscle mass, and contributes to the progressive pathology of muscle wasting disorders. However, little is known regarding the time-dependent signalling of TGF-β in myoblasts and myotubes, as well as how TGF-β affects collagen type I expression and the phenotypes of these cells. Here, we assessed effects of TGF-β on gene expression in C2C12 myoblasts and myotubes after 1, 3, 9, 24 and 48 h treatment. In myoblasts, various myogenic genes were repressed after 9, 24 and 48 h, while in myotubes only a reduction in expression was observed. In both myoblasts and myotubes, TGF-β acutely induced the expression of a subset of genes involved in fibrosis, such as and which was subsequently followed by increased expression of . Knockdown of and resulted in a lower expression level. Furthermore, the effects of TGF-β on myogenic and fibrotic gene expression were more pronounced than those of myostatin, and knockdown of TGF-β type I receptor , but not receptor resulted in a reduction in and expression. These results indicate that, during muscle regeneration, TGF-β induces fibrosis via by stimulating the autocrine signalling of and
Li Z, Zhang L, Wang Y, Zhu Y, Shen H, Yuan J Bioact Mater. 2025; 47:417-431.
PMID: 40034411 PMC: 11872614. DOI: 10.1016/j.bioactmat.2025.02.005.
Genistein inhibited endocytosis and fibrogenesis in keloid via CTGF signaling pathways.
Lu C, Ko J, Ou C, Hsu C, Hsiao Y, Tang S Genes Nutr. 2024; 19(1):23.
PMID: 39465374 PMC: 11520065. DOI: 10.1186/s12263-024-00758-1.
Shi A, He C, Otten K, Wu G, Forouzanfar T, Wust R J Cell Physiol. 2024; 239(12):e31418.
PMID: 39164996 PMC: 11649968. DOI: 10.1002/jcp.31418.
Drugs targeting CTGF in the treatment of pulmonary fibrosis.
Qiu Y, Que Y, Ding Z, Zhang S, Wei R, Xia J J Cell Mol Med. 2024; 28(10):e18448.
PMID: 38774993 PMC: 11109635. DOI: 10.1111/jcmm.18448.
Saad E, Michel R, Borahay M Ageing Res Rev. 2024; 97:102314.
PMID: 38670462 PMC: 11181954. DOI: 10.1016/j.arr.2024.102314.