Abstract:
:Cell cycle arrest is essential for initiation of muscle differentiation in myoblasts. Given the previously described essential role for p38 MAPK in myogenesis, we undertook the present study to investigate the role of p38 MAPK in the cell cycle arrest that initiates muscle differentiation. p38 MAPK activity increased during, and was required for, muscle differentiation. Inhibition of p38 MAPK stimulated Raf and ERK activities, and induced cell proliferation in differentiation medium. The concomitant inhibition of p38 MAPK and ERK, however, failed to induce differentiation or proliferation. In conclusion, inhibition of the Raf/ERK pathway and the consequent cell cycle arrest is one of the major functions of p38 MAPK during muscle differentiation.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Lee J,Hong F,Kwon S,Kim SS,Kim DO,Kang HS,Lee SJ,Ha J,Kim SSdoi
10.1016/s0006-291x(02)02562-7subject
Has Abstractpub_date
2002-11-15 00:00:00pages
765-71issue
5eissn
0006-291Xissn
1090-2104pii
S0006291X02025627journal_volume
298pub_type
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