Kaihong Xu1, Xiao Yan1, Guifang Ouyang1, Jinyi Feng2, Lilin Ye2, Xuezhen Hu3, Dingsheng Liu4. 1. Department of Hematology, Ningbo First Hospital, Ningbo City, Zhejiang Province, 315000, China. 2. Department of Oncology and Hematology, Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital, Shanghai City, 201318, China. 3. Department of Emergency Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou City, Zhejiang Province, 325000, China. 4. Department of Oncology and Hematology, Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital, Shanghai City, 201318, China. QWEok67K@163.com.
Abstract
INTRODUCTION: microRNAs (miRNAs) are critical for tumorigenesis and progression of T-cell acute lymphoblastic leukemia (T-ALL). MiR-96-5p has been shown to play important roles in the development of many cancers, but its roles in T-ALL have yet not been studied. MATERIALS AND METHODS: miR-96-5p expression was detected in T-leukemic cells from peripheral blood of 30 patients with T-ALL using real-time quantitative PCR (RT-qPCR). TargetScan database was utilized to identify the target genes for miR-96-5p, and their target relationship was verified by western blot, dual luciferase reporter assay and RT-qPCR. The effects of miR-96-5p on the viability and proliferation of T-leukemic cells (Jurkat cells) were respectively determined using MTT and BrdU incorporation assays. RESULTS: miR-96-5p presented low expression levels by qPCR in peripheral blood of T-ALL patients compared to healthy volunteers. Upregulated miR-96-5p by miR-96-5p mimic transfection markedly inhibited the viability and proliferation of Jurkat cells. Furthermore, miR-96-5p negatively regulated the expression of its target gene, HBEGF. The decreased viability and proliferation of Jurkat cells caused by miR-96-5p over-expression was suppressed after the introduction of HBEGF plasmid. CONCLUSIONS: The presented study showed that upregulation of miR-96-5p inhibited the viability and proliferation of Jurkat T-leukemic cells through suppressing HBEGF expression. Our study provides a novel sight for understanding the pathological mechanism of T-ALL and suggests that miR-96-5p may be a potential biomarker for the therapy and diagnosis of T-ALL.
INTRODUCTION: microRNAs (miRNAs) are critical for tumorigenesis and progression of T-cell acute lymphoblastic leukemia (T-ALL). MiR-96-5p has been shown to play important roles in the development of many cancers, but its roles in T-ALL have yet not been studied. MATERIALS AND METHODS:miR-96-5p expression was detected in T-leukemic cells from peripheral blood of 30 patients with T-ALL using real-time quantitative PCR (RT-qPCR). TargetScan database was utilized to identify the target genes for miR-96-5p, and their target relationship was verified by western blot, dual luciferase reporter assay and RT-qPCR. The effects of miR-96-5p on the viability and proliferation of T-leukemic cells (Jurkat cells) were respectively determined using MTT and BrdU incorporation assays. RESULTS:miR-96-5p presented low expression levels by qPCR in peripheral blood of T-ALL patients compared to healthy volunteers. Upregulated miR-96-5p by miR-96-5p mimic transfection markedly inhibited the viability and proliferation of Jurkat cells. Furthermore, miR-96-5p negatively regulated the expression of its target gene, HBEGF. The decreased viability and proliferation of Jurkat cells caused by miR-96-5p over-expression was suppressed after the introduction of HBEGF plasmid. CONCLUSIONS: The presented study showed that upregulation of miR-96-5p inhibited the viability and proliferation of Jurkat T-leukemic cells through suppressing HBEGF expression. Our study provides a novel sight for understanding the pathological mechanism of T-ALL and suggests that miR-96-5p may be a potential biomarker for the therapy and diagnosis of T-ALL.
Entities:
Keywords:
HBEGF; Jurkat T cells; T-cell acute lymphoblastic leukemia; miR-96-5p