(A) MDA-MB-231 cells infected with control or LMNB2 shRNA lentivirus were subcutaneously implanted into nude mice. After 15 days, the tumors were isolated and photographed, and the tumor volumes were measured every 3 days. Tumor growth curves were calculated and compared between LMNB2 knockdown and control groups. IHC assays showed the expression levels of LMNB2 (B), Ki67 (C), and caspase-3 (D) in tumors of the control or LMNB2 depletion groups. Results are presented as mean ± SD, * P<0.05.