Figure 4.
IGF2BP1 and IGF2BP3 mediate the HbF silencing activity of BMI1 in primary adult erythroblasts. (A) Schematic of BMI1 depletion experiments in primary adult erythroid cells. (B-C) Volcano plots of DEGs identified from RNA-seq in BMI1-depleted primary adult erythroblasts (sgBMI1#1 or sgBMI1#3) by DESeq2. Cutoff threshold: fold change > 2; FDR < 0.1; n = 2. (D) Venn diagram of overlapped DEGs identified from RNA-seq in BMI1-depleted primary adult erythroblasts by comparing control sample with sgBMI1#1 (B) and sgBMI1#3 (C) sample, respectively. (E) Representative immunoblots of BCL11A, IGF2BP1, IGF2BP3, BMI1, and γ-globin protein in control (sgNeg: nontargeting sgRNA; sgBCL11A+58, positive control) or BMI1-depleted primary adult erythroblasts. GAPDH was used as loading control. DEGs, differentially expressed genes.