AR and breast cancer: Some studies have shown that AR positive TNBC had a lower rate of pCR compared with AR negative TNBC [22, 23], However, a recent research indicated that there was no association of AR status and the pathologic responses or survival outcomes in patients with TNBC treated with neoadjuvant chemotherapy [24].Studies regarding AR as a predictor of pCR rate and survival after neoadjuvant chemotherapy according to breast cancer subtype were insufficient [25].