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Treatment of Disease States which Result from Neoplastic Cell Proliferation Using PPAR-gamma Activators and Compositions Useful Therefor

Inventors: Ron Evans, Laszlo Nagy, and Peter Tontonoz
Potential Uses: Oncology, Drug Discovery and Development
Administration of PPAR-gamma agonists, optionally in combination with RXR specific agonists, can block neoplastic cell proliferation

Neoplastic cell proliferation is the underlying cause of a wide variety of diseases, e.g., breast cancer, leukemia, colon cancer, prostate cancer. Traditional approaches to treatment of neoplastic cell proliferation include surgery, chemotherapy and radiotherapy. Induction of terminal differentiation represents a promising alternative to conventional methods of treatment for certain malignancies. It has been discovered that PPAR-gamma is expressed consistently in tissues associated with a variety of disease states which result from neoplastic cell proliferation. Maximal activation of PPAR-gamma with exogenous ligand promotes terminal differentiation of primary cells which are otherwise subject to neoplastic cell proliferation. Thus, cells undergoing neoplastic cell proliferation can be induced to differentiate, thereby blocking further proliferation. It has also been discovered that RXR-specific ligands are potent agents for induction of differentiation of cells expressing the PPAR-gamma/RXR-alpha heterodimer and that simultaneous treatment of cells subject to neoplastic cell proliferation with a PPAR-gamma-selective ligand, in combination with an RXR-specific ligand, results in an additive stimulation of differentiation. The invention includes compounds and compositions which could be useful for the treatment of breast cancer, leukemia, colon cancer and prostate cancer.

Salk No: S96024A
Patent Status: U.S. Patent No. 6,646,008 issued November 11, 2003
Publications: PNAS USA 1997 Jan 7; 94(1):237-41
License Terms: Exclusive or Nonexclusive licenses available
Contact: Michelle Booden, Ph.D., Director of Licensing, 858.453.4100 x1612, mbooden@salk.edu

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