Peptidomimetic inhibitors of STAT activity and uses thereof

Chemistry: natural resins or derivatives; peptides or proteins; – Peptides of 3 to 100 amino acid residues – Tripeptides – e.g. – tripeptide thyroliberin – etc.

Reexamination Certificate

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C530S340000, C514S007600

Reexamination Certificate

active

07342095

ABSTRACT:
The subject invention concerns compositions and methods for blocking cancer cell growth or proliferation and/or inducing cancer cell death. Compositions of the present invention are peptidomimetics that inhibit STAT function. Peptidomimetics of the invention include compounds of the formula RY*L (where Y* represents phosphotyrosine), with the R group at the Y-1 position. Peptidomimetics of the invention disrupt Stat3 activation and function. Peptidomimetics of the invention significantly inhibit tumor cell growth and induce tumor cell death.

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