Home Neoplasma 2022 Neoplasma Vol.69, No.5, p.1198–1208, 2022

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Neoplasma Vol.69, No.5, p.1198–1208, 2022

Title: Alternative splicing analysis showed the splicing factor polypyrimidine tract-binding protein 1 as a potential target in acute myeloid leukemia therapy
Author: Qiao-Xia Zhang, Yu-Ming Pan, Hong-Li Xiao, Na An, Si-Si Deng, Xin Du

Abstract: Alternative splicing (AS) is a universal post-transcriptional regulation process in cells, and increasing evidences have validated its crucial role in tumors. We collected AS event, gene expression, and clinical data of 178 AML patients from The Cancer Genome Atlas (TCGA) project. More than 1,000 AS events were found associated with overall survival (OS), and alternate promoter (AP) events were the most significant. The expression of the KIAA0930 transcript was the most significantly different AS event selected from AP events and significantly correlated with the expression of the splicing factor (SF) polypyrimidine tract-binding protein 1 (PTBP1). Then, the roles of PTBP1 on AS of the KIAA0930 and the proliferation of AML cells were confirmed. KIAA0930 variant 1 (KIAA0930-1) was upregulated and variant 2 (KIAA0930-2) downregulated with knockdown PTBP1 expression of AML cells by specific shRNA. A low level of PTBP1 can decrease the proliferation ability of AML cells. In conclusion, the results showed that PTBP1 might be a potential target for AML therapy.

Keywords: alternative splicing; acute myeloid leukemia; polypyrimidine tract binding protein 1
Published online: 22-Sep-2022
Year: 2022, Volume: 69, Issue: 5 Page From: 1198, Page To: 1208
Price: 23.10 €

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