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Nat Med. 1999 Jul;5(7):810-6.

Blockade of the MAP kinase pathway suppresses growth of colon tumors in vivo.

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1
Department of Cell Biology, Parke-Davis Pharmaceutical Research, Division of Warner-Lambert, Ann Arbor, Michigan 48105, USA.

Abstract

The mitogen-activated protein kinase pathway is thought to be essential in cellular growth and differentiation. Here we report the discovery of a highly potent and selective inhibitor of the upstream kinase MEK that is orally active. Tumor growth was inhibited as much as 80% in mice with colon carcinomas of both mouse and human origin after treatment with this inhibitor. Efficacy was achieved with a wide range of doses with no signs of toxicity, and correlated with a reduction in the levels of activated mitogen-activated protein kinase in excised tumors. These data indicate that MEK inhibitors represent a promising, noncytotoxic approach to the clinical management of colon cancer.

PMID:
10395327
DOI:
10.1038/10533
[Indexed for MEDLINE]
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