SOX2 and triple-negative breast carcinoma: This is consistent with data obtained at the mRNA level using publicly available gene expression databases: SOX2 and AR are positively correlated (r = 0.03, p = 0.0007) in breast cancers, although the correlation is not significant in triple-negative breast cancers in particular (r = 0.06, p = 0.0905) (42, 43).