[The Effects of on the Proliferation and Apoptosis of Acute Myeloid Leukemia THP-1 Cells].

Objective: To discover the relationship between the gene and acute myeloid leukemia (AML), and explore the effect of on the proliferation and apoptosis of THP-1 cells.

Methods: Analyze the expression of gene in AML and its relationship with prognosis through the GEPIA database. Collecting 30 AML patients and non-tumor hematological patients who went to the Affiliated Hospital of Zunyi Medical University from January 2017 to January 2022. RT-qPCR and Western blot were used to detect the expression levels of mRNA and protein. Perform survival of patients was analysed by Kaplan-Meier. Meanwhile, the expression levels of mRNA and protein were detected in AML cell lines (THP-1, OCI-AML ). CRISPR-Cas9 was used to knockdown the gene in THP-1 cells; flow cytometry was used to detect apoptosis rate of cell. CCK-8 and colony formation assay were used to detect cell proliferation. Western blot was used to detect the expression level of Cleaved-Caspase 3 protein.

Results: Compared with the control group, the expression level of in AML patients was significantly increased, and patients with high expression of have a worse prgnosis. Higher expression level of RNF213 protein in THP-1 cells. After knocking down the gene of THP-1 cells, cell proliferation was significantly reduced, and the apoptosis rate and expression of apoptosis related protein Cleared-Caspase3 were significantly increased.

Conclusion: AML patients have high expression of , and the prognosis of high expression patients is poor. The gene affects AML cell proliferation and apoptosis, and may be a prognostic marker and potential therapeutic target for AML.