hes1-protein--human and marimastat

Our study is to research the effect of inhibited ADAM-17 expression through the Notch pathway in renal carcinoma.. Immunohistochemistry and western blot were used to examine the expression of ADAM-17 protein in renal cancer tissues. Proliferation and cell invasion of 786-o cells, as well as OS-RC-2 cells, after treatment with two different inhibitors of the Notch pathway, were examined by CCK-8 assay and Transwell assay, respectively. 786-o cell apoptosis was measured using the FCM test.. ADAM-17 was highly expressed in RCC tissues. Compared with blocking γ-secretase, a known mechanism of impairing Notch, blockade of ADAM-17 more effectively down-regulated the expressions of Notch1 and HES-1 proteins. Similarly, we found that the ADAM-17 inhibitor, Marimastat, could more efficiently reduce renal cell proliferation and invasive capacity in comparison with the γ-secretase inhibitor DAPT when used at the same dose. Similar results were obtained when apoptosis of 786-o was measured.. Compared with γ-secretase, inhibition of ADAM-17 expression more effectively inhibits Notch pathway-mediated renal cancer cell proliferation and invasion. ADAM-17 may be a new target for future treatment of renal carcinoma.

Topics: ADAM Proteins; ADAM17 Protein; Amyloid Precursor Protein Secretases; Apoptosis; Basic Helix-Loop-Helix Transcription Factors; Carcinoma, Renal Cell; Cell Line, Tumor; Cell Movement; Cell Proliferation; Homeodomain Proteins; Humans; Hydroxamic Acids; Kidney Neoplasms; Neoplasm Staging; Receptor, Notch1; Receptors, Notch; Signal Transduction; Transcription Factor HES-1