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Role of compound realgar natural indigo tablet treatment on the NB4-R1 cell line in vitro. (A) Flow cytometry analysis of the apoptosis in NB4-R1 cells. (B) Western blot analysis of the expression of the PML-RARα fusion protein in NB4-R1 cells. CON, control; FITC, fluorescein isothiocyanate; PML-RARα, promyelocytic leukemia-retinoic acid receptor α.
