SIRT2 and breast cancer: The conc. of SIRT2 was higher in the TNBC cells (MDA-MB-231 = 275.1 ± 14.3 pg/mL, MDA-MB-468 = 329.4 ± 11.72 pg/mL, BT-549 = 326.9 ± 13.01 pg/mL, HCC1937 = 869.2 ± 40.32 pg/mL, respectively) than in luminal-type BC cells (T47D = 254.5 ± 3.593 pg/mL, MCF7 = 212.0 ± 7.31 pg/mL).