Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-18416
Ghayor, C; Ehrbar, M; San Miguel, B; Grätz, K W; Weber, F E (2009). cAMP enhances BMP2-signaling through PKA and MKP1-dependent mechanisms. Biochemical and Biophysical Research Communications (BBRC), 381(2):247-252.
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Recent studies suggest that the elevation of intracellular cyclic adenosine monophosphate (cAMP) and the activation of the protein kinase A regulate BMP-induced osteogenesis. However, the precise mechanisms underlying the enhancing effect of cAMP on BMP2 signaling were not completely revealed. In this study we investigated the effect of elevated cAMP level and PKA activation on the BMP2-induced osteoblastic differentiation in pluripotent C2C12 cells. Alkaline phosphatase activity and its mRNA were consistently induced by BMP2 treatment. The pretreatment of C2C12 cells with Forskolin, a cAMP generating agent, dbcAMP, an analogue of cAMP, or IBMX (3-isobutyl 1-methyl xanthine), and a nonspecific inhibitor of phosphodiesterases elicited further activation of alkaline phosphatase. Furthermore, elevated intracellular cAMP level increased BMP2-induced MKP1. On the other hand, BMP2-induced Erk phosphorylation (p44/p42) and cell proliferation were suppressed in the presence of cAMP. Thus, cAMP might enhance BMP2-induced osteoblastic differentiation by a MKP1-Erk-dependent mechanism.
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|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||04 Faculty of Medicine > Center for Dental Medicine > Clinic for Cranio-Maxillofacial Surgery
04 Faculty of Medicine > University Hospital Zurich > Clinic for Obstetrics
04 Faculty of Medicine > University Hospital Zurich > Division of Surgical Research
|DDC:||610 Medicine & health|
|Date:||3 April 2009|
|Deposited On:||30 Apr 2009 14:14|
|Last Modified:||30 Nov 2013 05:41|
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