کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10772127 1050847 2005 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Genistein directly inhibits GLUT4-mediated glucose uptake in 3T3-L1 adipocytes
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
پیش نمایش صفحه اول مقاله
Genistein directly inhibits GLUT4-mediated glucose uptake in 3T3-L1 adipocytes
چکیده انگلیسی
The isoflavone-derivative genistein is commonly applied as an inhibitor of tyrosine kinases. In this report we analyze the effect of genistein on insulin-stimulated glucose uptake in 3T3-L1 adipocytes. In these cells insulin-induced glucose uptake is primarily mediated by the GLUT4 glucose transporter. We observed that pre-treatment with genistein did not affect insulin-induced tyrosine kinase activity of the insulin receptor or activation of protein kinase B. On the other hand, genistein acted as a direct inhibitor of insulin-induced glucose uptake in 3T3-L1 adipocytes with an IC50 of 20 μM. We conclude that apart from acting as a general tyrosine kinase inhibitor, genistein also affects the function of other proteins such as the GLUT4 transporter. These data suggest that caution must be applied when interpreting data on the involvement of tyrosine kinase activity in glucose uptake in 3T3-L1 adipocytes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical and Biophysical Research Communications - Volume 326, Issue 2, 14 January 2005, Pages 511-514
نویسندگان
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