کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2051183 | 1074193 | 2008 | 6 صفحه PDF | دانلود رایگان |
The contributions of membrane type-1 matrix metalloproteinase (MT1-MMP) and of the glucose-6-phosphate transporter (G6PT) in sphingosine-1-phosphate (S1P)-mediated Ca2+ mobilization were assessed in glioblastoma cells. We show that gene silencing of MT1-MMP or G6PT decreased the extent of S1P-induced Ca2+ mobilization, chemotaxis, and extracellular signal-related kinase phosphorylation. Chlorogenic acid and (−)-epigallocatechin-3-gallate, two diet-derived inhibitors of G6PT and of MT1-MMP, respectively, reduced S1P-mediated Ca2+ mobilization. An intact MT1-MMP/G6PT signaling axis is thus required for efficient Ca2+ mobilization in response to bioactive lipids such as S1P. Targeted inhibition of either MT1-MMP or G6PT may lead to reduced infiltrative and invasive properties of brain tumor cells.
Journal: FEBS Letters - Volume 582, Issue 5, 5 March 2008, Pages 799–804