Generation of Rat Monoclonal Antibodies for Human and Mouse Androgen Receptor

Androgen receptor (AR) is activated by binding to androgens, which leads to nuclear translocation, dimerization, and binding to androgen response elements (AREs) to regulate gene transcription. AR is important in masculinization during mammalian development and is a major driver of tumor growth in prostate cancer, for which AR pathway inhibitors are the standard treatment. However, the mechanisms by which AR participates in these processes remain unclear. In this study, we describe rat monoclonal antibodies (mAbs) that were generated against human and mouse AR. These mAbs recognize endogenous AR and were shown to be effective in the immunofluorescence staining of human cell lines and mouse tissue sections and in immunoprecipitation experiments. We expect these mAbs to be useful for functional analyses of AR.