Methods for the identification of agents that inhibit...

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving antigen-antibody binding – specific binding protein...

Reexamination Certificate

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C435S029000

Reexamination Certificate

active

07951549

ABSTRACT:
The present invention provides tumor cell preparations for use as models of the EMT process for use in the identification of anti-cancer agents, wherein said tumor cell preparations comprise cells of the epithelial tumor cell line H358, which are stimulated by receptor ligands to induce EMT, or which have been engineered to inducibly express a protein that stimulates EMT. The present invention also provides methods of identifying potential anti-cancer agents by using such tumor cell preparations to identify agents that inhibit EMT, stimulate MET, or inhibit the growth of mesenchymal-like cells. Such agents should be particularly useful when used in conjunction with other anti-cancer drugs such as EGFR and IGF-1R kinase inhibitors, which appear to be less effective at inhibiting tumor cells that have undergone an EMT.

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