Methods for the identification of agents that inhibit mesenchymal-like tumor cells or their formation
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United States of America Patent
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May 31, 2011
Grant Date -
Sep 10, 2009
app pub date -
Mar 6, 2009
filing date -
Mar 7, 2008
priority date (Note) -
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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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