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miR-26b regulated autophagy in MCF7 cells exposed to IR. MCF7 cells that were transfected with NC, miR-26b mimic or the miR-26 inhibitor were subsequently exposed to IR. (A) miR-26b promoted the LC3II protein expression induced by IR. (B) MCF7 cells were exposed to 4 Gy of IR. Staining with monodansylcadaverine was detected by flow cytometry at 24 h. miR, microRNA; IR, ionizing radiation; IR, ionizing radiation; NC, negative control; LC3II, light chain 3-II.
