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Overexpression of CD81 promoted cell proliferation and migration of MDA-MB-231 and MDA-MB-435S breast cancer cells in vitro. (A) Western blot analysis confirmed the efficacy of the CD81-expressing plasmid. (B) Growth curves of MDA-MB-231-vec/MDA-MB-231-CD81 and MDA-MB-435S-vec/MDA-MB-435S-CD81 cells are shown. * P<0.05; ** P<0.01. (C) Overexpression of CD81 significantly promoted cell migration of MDA-MB-231 and MDA-MB-435S cells. * P<0.05; ** P<0.01.
