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http://dx.doi.org/10.5352/JLS.2007.17.7.976

Effects of Histone Deacetylase Inhibitor, Trichostatin A, on the Differentiation of C2C12 Myoblasts and the Expression of Cell Cycle Regulators  

Lee, Won-Jun (College of Health Science, Ewha Womans University)
Publication Information
Journal of Life Science / v.17, no.7, 2007 , pp. 976-982 More about this Journal
Abstract
The purpose of this study was to determine the modulating effects of histone deacetylase inhibitor, trichostatin A, on the differentiation of mouse C2C12 myoblasts. We demonstrated that trichostatin A induced morphological changes of C2C12 myoblasts into smooth muscles and significantly increased the gene expression of smooth muscle markers including smooth muscle ${\alpha}-actin$ and transgelin. These results were due to the change in the expression level of cell cycle regulators in trichostatin A-treated C2C12 cells. Real-time PCR data revealed that cyclin dependent kinase inhibitor, p21, mRNA expression was significantly increased in trichostatin A-treated C2C12 cells. However, trichostaDn A rapidly decreased cyclin Dl mRNA expression necessary for cell cycle progression in 24hr after treatment. In conclusion, the strong inhibitory effects of trichostatin A on histone deacetylation induced transdifferentiation of C2C12 myoblasts into smooth muscle cells and these results are partly due to the changes in the expression of cell cycle regulators such as p21 and cyclin D1.
Keywords
Histone deacetylase; smooth muscle; differentiation; cell cycle regulators; trichostatin A;
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