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Articles by C Hahn
Total Records ( 1 ) for C Hahn
  T Petzold , A. W Orr , C Hahn , K. A Jhaveri , J. T Parsons and M. A. Schwartz

Atherogenesis involves activation of NF-B in endothelial cells by fluid shear stress. Because this pathway involves integrins, we investigated the involvement of focal adhesion kinase (FAK). We found that FAK was not required for flow-stimulated translocation of the p65 NF-B subunit to the nucleus but was essential for phosphorylation of p65 on serine 536 and induction of ICAM-1, an NF-B-dependent gene. NF-B activation by TNF- or hydrogen peroxide was FAK independent. Events upstream of NF-B, including integrin activation, Rac activation, reactive oxygen production, and degradation of IB, were FAK independent. FAK therefore regulates NF-B phosphorylation and transcriptional activity in response to flow by a novel mechanism.

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