GSTM1 and breast cancer: While some studies present proteins specifically for disease stage (e.g., coded by PRDX1, UMP/CMPK, GSTM1, PGAM1, PRDX6, PSME1, HSPB-1, ANXA1, and CAPG for NMIBC; BLVRB, PRDX2, and HPGD for MIBC), recent studies reveal novel potential biomarkers for BC in general such as RET, PVRL4, AREG, FGFBP1, WFDC2, ESM-1, SPR, AK1, CD2AP, ADGFR1, GMPS, and C8A (79–81).