Protein kinase A regulates the osteogenic activity of Osterix.

Abstract:

:Osterix belongs to the SP gene family and is a core transcription factor responsible for osteoblast differentiation and bone formation. Activation of protein kinase A (PKA), a serine/threonine kinase, is essential for controlling bone formation and BMP-induced osteoblast differentiation. However, the relationship between Osterix and PKA is still unclear. In this report, we investigated the precise role of the PKA pathway in regulating Osterix during osteoblast differentiation. We found that PKA increased the protein level of Osterix; PKA phosphorylated Osterix, increased protein stability, and enhanced the transcriptional activity of Osterix. These results suggest that Osterix is a novel target of PKA, and PKA modulates osteoblast differentiation partially through the regulation of Osterix.

journal_name

J Cell Biochem

authors

He S,Choi YH,Choi JK,Yeo CY,Chun C,Lee KY

doi

10.1002/jcb.24851

subject

Has Abstract

pub_date

2014-10-01 00:00:00

pages

1808-15

issue

10

eissn

0730-2312

issn

1097-4644

journal_volume

115

pub_type

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