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- W1985909095 abstract "c-Met receptor tyrosine kinase and its ligand, hepatocyte growth factor (HGF), have been reported to be involved in tumorigenesis and metastatic progression. We synthesized a novel triazolopyridazine derivative KRC-327 which selectively targets the c-Met. When we performed receptor tyrosine kinases (RTKs) array with 42 different phosphorylated-RTKs, KRC-327 strongly inhibited expression of activated c-Met in MKN-45 cancer cells. This was confirmed by immunofluorescence staining. Also, KRC-327 decreased the expression of Gab1, Akt, signal transducer and activator of transcription 3 (STAT3) and Erk, down-stream signals of c-Met. KRC-327 strongly suppressed the growth of c-Met over-expressed cancer cells (MKN-45, SNU-638, SNU-5), while not in c-Met absent cancer cell lines (MKN-1, SNU-1). Furthermore, KRC-327 effectively induced cell cycle arrest, especially G0/G1 arrest by increasing expression of p21, p27 and decreasing that of cyclin D1. In the ligand-induced functional studies, KRC-327 inhibited proliferation of HGF-stimulated BxPC-3 cells, the migration of HGF-stimulated AGS cancer cells, and suppressed colony formation in HGF-stimulated U-87MG cells. In xenograft animal models, KRC-327 significantly not only delayed tumor growth but also suppressed phosphorylation of c-Met and its signaling cascades as well as proliferation. Taken together, these results demonstrate that KRC-327 selectively targets c-Met, resulting in inhibition of cell growth and proliferation. Therefore, we suggest that KRC-327 may be a novel drug candidate with the therapeutic potential of targeting c-Met in human cancer." @default.
- W1985909095 created "2016-06-24" @default.
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- W1985909095 date "2013-05-01" @default.
- W1985909095 modified "2023-09-23" @default.
- W1985909095 title "KRC-327, a selective novel inhibitor of c-Met receptor tyrosine kinase with anticancer activity" @default.
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- W1985909095 doi "https://doi.org/10.1016/j.canlet.2012.12.025" @default.
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