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首页> 外文期刊>Journal of cellular biochemistry. >miR‐200c, a tumor suppressor that modulate the expression of cancer stem cells markers and epithelial‐mesenchymal transition in colorectal cancer
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miR‐200c, a tumor suppressor that modulate the expression of cancer stem cells markers and epithelial‐mesenchymal transition in colorectal cancer

机译:miR-200c,一种调节癌症干细胞标志物和上皮 - 间充质转换在结肠直肠癌中的表达的肿瘤抑制剂

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Abstract Colorectal cancer (CRC) is the most frequently diagnosed cancer and the most common gastrointestinal cancer worldwide. Due to the presence of populations of cancer stem cells (CSCs) that cause recurrence, the possibility of cancer treatment is very low. The aim of current study was to evaluate the inhibitory role of miR‐200c on EMT, CSCs markers and β‐catenin in HCT‐116 and SW48 cell lines. The expression of miR‐200c, EMT‐related genes, CSCs markers, and β‐catenin were quantified by qRT‐PCR. Further, expression of β‐catenin and EMT‐related proteins, and migration were analyzed by Western blot, and migration assay kit, respectively. Spheroid formation assay was used to enrich colorectal CSCs from colorectal cancer cell lines. LNA‐anti‐miR‐200c suppressed the endogenous miR‐200c in transfected cells compared with the control. qRT PCR and Western blot analysis of LNA‐anti‐miR‐200c transfected cells revealed a considerable increase in CSCs markers, vimentin, ZEB‐1, N‐cadherin, and β‐catenin expression, with a concomitant reduction in E‐cadherin expression level. Migration and sphere forming ability of HCT‐116 and SW48 cells increased in transfected cells. The results of current study revealed that downregulation of miR‐200c may be an important factor for the overexpression of CSCs markers and EMT related genes via β‐catenin upregulation in CRC.
机译:抽象结直肠癌(CRC)是全世界最常见的癌症和最常见的胃肠癌。由于存在导致复发的癌症干细胞(CSCs)群体的存在,癌症治疗的可能性非常低。目前研究的目的是评估miR-200c在HCT-116和SW48细胞系中EMT,CSCS标记和β-连环蛋白的抑制作用。通过QRT-PCR定量miR-200c,EMT相关基因,CSCs标记物和β-catenin的表达。此外,通过蛋白质印迹和迁移测定试剂盒分析β-catenin和EMT相关蛋白质和迁移的表达。球形地层测定用于富含结直肠癌细胞系的结肠直肠癌CSC。与对照相比,LNA-抗miR-200c在转染细胞中抑制了内源性miR-200c。 LNA-抗miR-200c转染细胞的QRT PCR和Western印迹分析显示CSCs标志物,Vimentin,ZeB-1,N-Cadherin和β-catenin表达的相当大增加,伴随着E-钙粘蛋白表达水平。转染细胞中HCT-116和SW48细胞的迁移和球形形成能力增加。目前研究的结果表明,miR-200c的下调可能是CRC中β-catenin上调的CSCs标记和EMT相关基因过度表达CSCS标志物和EMT相关基因的重要因素。

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