CD44 and breast cancer: These include basigin (Bsg, CD147), β-catenin (Ctnnb1), and α-catenin (Ctnna1), which are linked to chemoresistance; β-catenin, Ptk7, CD44, and Epcam, which are associated with BC cell stemness; and CD98 (Slc3a2, 4F2), LAT1 (Slc7a5), GLUT1 (Slc2a1), and Epha2, which correlate with poorer prognosis [12].