Androgen receptor expression is usually maintained in initial surgically resected breast cancer metastases but is often lost in end-stage metastases found at autopsy

Summary Androgen receptor (AR) is expressed in approximately 70% of primary breast carcinomas (PBCs) and is a promising therapeutic target for metastatic breast carcinoma (MBC). Here, we examine AR expression in a population of initial surgically resected metastases and a separate cohort of end-stag...

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