Search results for: Rabbit Polyclonal Antibody; Trefoil Factor 2, Anti-Human
#16410243 2006/01/12 To Up
Vangl1 protein acts as a downstream effector of intestinal trefoil factor (ITF)/TFF3 signaling and regulates wound healing of intestinal epithelium.
The intestinal trefoil factor (ITF/TFF3) protects intestinal epithelia from a range of insults and contributes to mucosal repair. However, the signaling events that mediate healing responses are only partially understood. To identify ITF signaling pathways, proteins that were Ser/Thr phosphorylated in response to ITF stimulation were immunoprecipitated from human colon carcinoma cell lines and identified by mass spectrometry. We demonstrated that Van Gogh-like protein 1 (also designated Vang-like 1 or Vangl1), a protein with four transmembrane domains, was Ser/Thr phosphorylated in response to ITF stimulation. Vangl1 was present in normal human colon and all intestinal epithelial cell lines (IEC) tested. In transfected IEC, FLAG-Vangl1 was mostly present in the Nonidet P-40 soluble fraction as detected by Western blotting, corresponding to the localization of endogenous protein in cytoplasmic vesicular structures by confocal microscopy with rabbit polyclonal anti-human Vangl1 antibody (alpha-Vangl1). Vangl1 cell membrane association increased with differentiation, as demonstrated by co-localization with E-cadherin in differentiated IEC. Increased Vangl1 phosphorylation after stimulation with ITF corresponded to decreased cell membrane association with E-cadherin. Functionally, Vangl1 overexpression enhanced ITF unstimulated and stimulated wound closure of IEC, whereas siRNA directed against Vangl1 inhibited the migratory response to ITF. Vangl1 protein may serve as an effector mediating the ITF healing response of the intestinal mucosa.Jiri Kalabis, Ian Rosenberg, Daniel K Podolsky
1378 related Products with: Vangl1 protein acts as a downstream effector of intestinal trefoil factor (ITF)/TFF3 signaling and regulates wound healing of intestinal epithelium.
0.1 mg0.1 mg96tests96 assays100ug100ul100ug1mg1000 assays1 kit(96 Wells)Related Pathways
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