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Loss of miR-146b-5p promotes T cell acute lymphoblastic leukemia migration and invasion via the IL-17A pathway.
Journal of Cellular Biochemistry ( IF 4 ) Pub Date : 2018-10-25 , DOI: 10.1002/jcb.27882
Zhenbo Tu 1 , Jie Xiong 1 , Ruijing Xiao 1 , Liang Shao 2 , Xiangyong Yang 3 , Lu Zhou 4 , Wen Yuan 1 , Meng Wang 1 , Qian Yin 1 , Yingjie Wu 1 , Shan Pan 1 , Jun Leng 1 , Daozi Jiang 5 , Chunjiang He 6 , Qiuping Zhang 1, 7
Affiliation  

Metastatic disease remains the primary cause of death for individuals with T cell acute lymphoblastic leukemia (T-ALL). microRNAs (miRNAs) play important roles in the pathogenesis of T-ALL by inhibiting gene expression at posttranscriptional levels. The goal of the current project is to identify any significant miRNAs in T-ALL metastasis. We observed miR-146b-5p to be downregulated in T-ALL patients and cell lines, and bioinformatics analysis implicated miR-146b-5p in the hematopoietic system. miR-146b-5p inhibited the migration and invasion in T-ALL cells. Interleukin-17A (IL-17A) was predicted to be a target of miR-146b-5p; this was confirmed by luciferase assays. Interestingly, T-ALL patients and cell lines secreted IL-17A and expressed the IL-17A receptor (IL-17RA). IL-17A/IL-17RA interactions promoted strong T-ALL cell migration and invasion responses. Gene set enrichment analysis (GSEA) and quantitative polymerase chain reaction (qPCR) analysis indicated that matrix metallopeptidase-9 (MMP9), was a potential downstream effector of IL-17A activation, and nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) signaling was also implicated in this process. Moreover, IL-17A activation promoted T-ALL cell metastasis to the liver in IL17A -/- mouse models. These results indicate that reduced miR-146b-5p expression in T-ALL may lead to the upregulation of IL-17A, which then promotes T-ALL cell migration and invasion by upregulating MMP9 via NF-κB signaling.

中文翻译:

miR-146b-5p的缺失会通过IL-17A途径促进T细胞急性淋巴细胞白血病的迁移和侵袭。

对于患有T细胞急性淋巴细胞白血病(T-ALL)的个体,转移性疾病仍然是主要的死亡原因。microRNA(miRNA)通过抑制转录后水平的基因表达在T-ALL的发病机理中发挥重要作用。当前项目的目标是鉴定T-ALL转移中任何重要的miRNA。我们观察到在T-ALL患者和细胞系中miR-146b-5p被下调,而生物信息学分析表明miR-146b-5p在造血系统中。miR-146b-5p抑制T-ALL细胞的迁移和侵袭。白介素-17A(IL-17A)被预测为miR-146b-5p的靶标;荧光素酶测定证实了这一点。有趣的是,T-ALL患者和细胞系分泌IL-17A并表达IL-17A受体(IL-17RA)。IL-17A / IL-17RA相互作用促进了强烈的T-ALL细胞迁移和侵袭反应。基因集富集分析(GSEA)和定量聚合酶链反应(qPCR)分析表明,基质金属肽酶9(MMP9)是IL-17A活化的潜在下游效应子,而活化B的核因子κ轻链增强剂细胞(NF-κB)信号转导也参与此过程。此外,在IL17A-/-小鼠模型中,IL-17A激活促进了T-ALL细胞向肝脏的转移。这些结果表明,T-ALL中miR-146b-5p表达降低可能导致IL-17A上调,然后通过NF-κB信号上调MMP9来促进T-ALL细胞迁移和侵袭。基因集富集分析(GSEA)和定量聚合酶链反应(qPCR)分析表明,基质金属肽酶9(MMP9)是IL-17A活化的潜在下游效应子,而活化B的核因子κ轻链增强剂细胞(NF-κB)信号转导也参与此过程。此外,在IL17A-/-小鼠模型中,IL-17A激活促进了T-ALL细胞向肝脏的转移。这些结果表明,T-ALL中miR-146b-5p表达降低可能导致IL-17A上调,然后通过NF-κB信号上调MMP9来促进T-ALL细胞迁移和侵袭。基因集富集分析(GSEA)和定量聚合酶链反应(qPCR)分析表明,基质金属肽酶9(MMP9)是IL-17A活化的潜在下游效应子,而活化B的核因子κ轻链增强剂细胞(NF-κB)信号转导也参与此过程。此外,在IL17A-/-小鼠模型中,IL-17A激活促进了T-ALL细胞向肝脏的转移。这些结果表明,T-ALL中miR-146b-5p表达降低可能导致IL-17A上调,然后通过NF-κB信号上调MMP9来促进T-ALL细胞迁移和侵袭。在IL17A-/-小鼠模型中,IL-17A激活促进T-ALL细胞向肝脏转移。这些结果表明,T-ALL中miR-146b-5p表达降低可能导致IL-17A上调,然后通过NF-κB信号上调MMP9来促进T-ALL细胞迁移和侵袭。在IL17A-/-小鼠模型中,IL-17A激活促进T-ALL细胞向肝脏转移。这些结果表明,T-ALL中miR-146b-5p表达降低可能导致IL-17A上调,然后通过NF-κB信号上调MMP9来促进T-ALL细胞迁移和侵袭。
更新日期:2019-11-01
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