Abstract
To explore the regulatory function of RNA binding motif protein 38 (RBM38) in human acute myeloid leukemia cells HL-60 and its mechanism. The lentivirus carriers of overexpressed and knockdown RBM38 were constructed. After HL-60 cells were transfected, Western blot was used to analyze the expression level of RBM38 in HL-60 cells. The cell proliferation and cycle of HL-60 were detected by CCK-8 assay and flow cytometry assay, respectively. RNA immunoprecipitation coupled real-time PCR (RIP-qPCR) was used to detect the combination of RBM38 with mRNAs. Actinomycin D treatment followed by real-time PCR (AcD-qPCR) was used to detect the effect of RBM38 on the stability of target mRNAs. RBM38 in HL-60 cells was overexpressed or inhibited by lentivirus transduction. Overexpressed RBM38 promoted the cell cycle and proliferation of HL-60, while RBM38 knockdown repressed the two processes. RBM38 showed an interaction with FZD1 mRNA and enhancement of its stability. RBM38 can regulate cell proliferation of HL-60 by improving the stability of FZD1 mRNA.
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