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Albert Einstein College of Medicine

Efficacy of taxol affected by mitogen-activated protein kinase inhibitor CI-1040

Published in FDA Law Weekly, May 26th, 2005

Mitogen-activated protein kinase (MEK) inhibitor, CI-1040, affected the therapeutic efficacy of taxol in nude mice bearing human heterotransplants.

"Taxol may contribute to intrinsic chemoresistance by activating the MEK/ extracellular signal-regulated kinase (ERK) cytoprotective pathway in human cancer cell lines and tumors. We have previously shown additivity between Taxol and the MEK inhibitor, U0126 in human cancer cell lines. Here, the combination of Taxol with an orally bioavailable MEK inhibitor, CI-1040, was evaluated in human lung tumors heterotransplanted into nude mice," scientists in the United States reported.

"Unlike xenograft models...

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