Protein kinase CK2 is a critical regulator of epithelial homeostasis in chronic intestinal inflammation.

ABSTRACT: The molecular mechanisms that restore intestinal epithelial homeostasis during colitis are incompletely understood. Here, we report that during intestinal inflammation, multiple inflammatory cytokines promote the activity of a master regulator of cell proliferation and apoptosis, serine/threonine kinase CK2. Enhanced mucosal CK2 protein expression and activity were observed in animal models of chronic colitis, particularly within intestinal epithelial cells (IECs). The in vitro treatment of intestinal epithelial cell lines with cytokines resulted in increased CK2 expression and nuclear translocation of its catalytic α subunit. Similarly, nuclear translocation of CK2α was a prominent feature observed in colonic crypts from individuals with ulcerative colitis and Crohn's disease. Further in

SUBMITTER: Koch S 

PROVIDER: S-EPMC3517934 | biostudies-literature | 2013 Jan

REPOSITORIES: biostudies-literature