title: Transgenic mouse model for rapid pharmacodynamic evaluation of antiandrogens.
abstract: Persistent androgen receptor signaling has been implicated as a critical factor in prostate cancer progression even at the hormone-refractory stage and provides strong rationale for developing novel androgen receptor antagonists. Traditional models for in vivo evaluation of antiandrogens are cumbersome because they rely on physiologic end points, such as the size of androgen-dependent tissues. Here, we describe a transgenic mouse (ARR2 Pb-Lux) that expresses luciferase specifically in the prostate in an androgen-dependent fashion. This signal is reduced by castration or by treatment with bicalutamide and can be quantified through noninvasive bioluminescent imaging. ARR2 Pb-Lux mice provide a novel method for rapid pharmacodynamic evaluation of novel pharmacologic compounds designed to inhibit androgen receptor signaling.
authors.affiliation: Department of Medicine, Jonsson Comprehensive Cancer Center, David Geffen School of Medicine, University of California at Los Angeles, California, USA.
authors.forename: Katharine
authors.initials: K
authors.lastname: Ellwood-Yen
authors.forename: John
authors.initials: J
authors.lastname: Wongvipat
authors.forename: Charles
authors.initials: C
authors.lastname: Sawyers
mesh_terms: D000726:Androgen Antagonists / Q000494:pharmacology*; D000813:Anilides / Q000494:pharmacology*; D000818:Animals; D005260:Female; D008156:Luciferases / Q000235:genetics; D008297:Male; D051379:Mice; D008822:Mice, Transgenic; D009376:Neoplasms, Hormone-Dependent / Q000188:drug therapy*; D009570:Nitriles; D011471:Prostatic Neoplasms / Q000188:drug therapy*; D011944:Receptors, Androgen / Q000235:genetics / Q000502:physiology*; D014105:Tosyl Compounds
chemical_list: D000726:Androgen Antagonists; D000813:Anilides; D009570:Nitriles; D011944:Receptors, Androgen; D014105:Tosyl Compounds; C053541:bicalutamide; D008156:Luciferases