(A) Bim−/− and Bim+/+ MEFs were cultured in 6-well dishes. Cells were treated with vehicle or Bafilomycin A1 (Baf) for 4 hr. Blots were probed with the indicated antibodies. LC3-II/tubulin in wild-type control MEFs is set as 1. The relative value of LC3-II/tubulin in Bim-knockout MEFs is shown (n = 5). Data are mean ± SD. ∗∗∗p < 0.001. 