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Cip2A modulates osteogenic differentiation via the ERK‐Runx2 pathway in MG63 cells
Author(s) -
Son HyoEun,
Jang WonGu
Publication year - 2021
Publication title -
biofactors
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.204
H-Index - 94
eISSN - 1872-8081
pISSN - 0951-6433
DOI - 10.1002/biof.1760
Subject(s) - runx2 , osteoblast , mapk/erk pathway , microbiology and biotechnology , chemistry , alkaline phosphatase , phosphatase , gene knockdown , kinase , protein phosphatase 2 , downregulation and upregulation , transcription factor , phosphorylation , cellular differentiation , signal transduction , biology , biochemistry , enzyme , in vitro , apoptosis , gene
Cancerous inhibitor of protein phosphatase 2A (Cip2A) is an oncoprotein that promotes the development of several types of cancer. However, its molecular function in osteoblast differentiation remains unclear. In this study, we found that Cip2A was upregulated under osteogenic conditions in MG63 cells. Besides, overexpression of Cip2A significantly increased the expression of Runt‐related transcription factor 2 (Runx2) and alkaline phosphatase (ALP). Inversely, the knockdown of Cip2A in MG63 cells suppressed osteoblast differentiation. Cip2A expression during osteogenic differentiation was mediated by extracellular signal‐regulated kinase (ERK) activation. Taken together, our results suggest that Cip2A plays important role in regulating osteoblast differentiation by inducing ERK phosphorylation in MG63 cells.