477574-82-6Relevant academic research and scientific papers
Mitochondrial-Targeting MET Kinase Inhibitor Kills Erlotinib-Resistant Lung Cancer Cells
Yang, Tianming,Ng, Wai Har,Chen, Huan,Chomchopbun, Kamon,Huynh, The Hung,Go, Mei Lin,Kon, Oi Lian
, p. 807 - 812 (2016)
Lung cancer cells harboring activating EGFR mutations acquire resistance to EGFR tyrosine kinase inhibitors (TKIs) by activating several bypass mechanisms, including MET amplification and overexpression. We show that a significant proportion of activated MET protein in EGFR TKI-resistant HCC827 lung cancer cells resides within the mitochondria. Targeting the total complement of MET in the plasma membrane and mitochondria should render these cells more susceptible to cell death and hence provide a means of circumventing drug resistance. Herein, the mitochondrial targeting triphenylphosphonium (TPP) moiety was introduced to the selective MET kinase inhibitor PHA665752. The resulting TPP analogue rapidly localized to the mitochondria of MET-overexpressing erlotinib-resistant HCC827 cells, partially suppressed the phosphorylation (Y1234/Y1235) of MET in the mitochondrial inner membrane and was as cytotoxic and apoptogenic as the parent compound. These findings provide support for the targeting of mitochondrial MET with a TPP-TKI conjugate as a means of restoring responsiveness to chemotherapy.
5-ARALKYSUFONYL-3-(PYRROL-2-YLMETHYLIDENE)-2-INDOLINONE DERIVATIVES AS KINASE INHIBITORS
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, (2008/06/13)
The present invention relates to certain 5-aralkylsulfonyl-3-(pyrrol-2-yl-methylidene)-2-indolinone derivatives that inhibit kinases, in particular met kinase. Pharmaceutical compositions comprising these compounds, methods of treating diseases mediated by kinases utilizing pharmaceutical compositions comprising these compounds, and methods of preparing them are also disclosed.
