Perspectives on designs of antiandrogens for prostate cancer.

University of California San Francisco, Department of Biochemistry and Biophysics, San Francisco, CA941432240, USA +1 415 476 5051
Expert Opinion on Drug Discovery (Impact Factor: 3.47). 10/2007; 2(10):1341-55. DOI: 10.1517/17460441.2.10.1341
Source: PubMed

ABSTRACT The androgen receptor (AR) regulates gene transcription in many tissues and is profoundly important in prostate cancer. Antiandrogens compete with the natural hormone and are front line therapeutics to treat prostate cancer. However, antiandrogens frequently become ineffective after prolonged treatment because of development of tumor resistance. This paper reviews design principles for new generations of antiandrogens: super antagonists and surface allosteric modulators. Super antiandrogens are compounds with higher binding affinity than natural agonists and that contain precisely engineered hydrophobic groups that disrupt AR function. AR surface is also an attractive alternative target. Surface inhibitors are small molecules that directly block the receptor-co-activator interface, preventing co-activator recruitment. The challenges to designing these compounds are significant but so is the potential for treatment of the disease.

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