| 郝静 包瑾芳 刘军 袁伟杰 于青.高糖诱导腹膜间皮细胞发生上皮间质转化中microRNA
的异常变化[J].现代生物医学进展英文版,2014,14(4):608-610. |
| 高糖诱导腹膜间皮细胞发生上皮间质转化中microRNA
的异常变化 |
| The Abnormal Expression Level of MicroRNA in Rpithelial-MesenchymalTransition of Eritoneal Mesothelial Cells Induced by High Glucose |
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| DOI： |
| 中文关键词: miR-193a 上皮间质转化 腹膜纤维化 异常表达 |
| 英文关键词: MicroRNA Epithelial-mesenchymal transition Peritoneal fibrosis Abnormal expression |
| 基金项目: |
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| 中文摘要: |
| 目的：定腹膜间皮细胞在高糖引起上皮间质转化(Epithelial-mesenchymal transition, EMT)过程中microRNA 的表达差异。方
法：常规培养PMC 细胞，利用高糖培养液刺激诱导腹膜间皮细胞发生EMT，倒置显微镜观察各组细胞形态学变化，实时定量
PCR检测EMT 标志基因变化，以此确定高糖诱导EMT 的发生。利用特异茎环结构的引物合成microRNA 的cDNA，实时定量
PCR 检测重要microRNA的表达变化。结果：高糖培养液培养腹膜间皮细胞48hr 后，细胞形态呈梭形改变，同时EMT 标记基因
E-cadherin 表达明显减低(P<0.01)，Vimentin表达显著升高(P<0.01)，说明高糖诱导腹膜间皮细胞发生了EMT。利用microRNA特
异的茎环结构引物，实时定量PCR 检测结果发现高糖刺激后miR-193a 的表达明显上调(P<0.01)；miR-15a 和let-7e 的表达明显降
低(P<0.01)；miR-16 和miR-21 的表达无明显变化(P>0.05)，同时检测发现高糖刺激后miR-193a 的表达水平随刺激时间表达升高。
结论：异常变化的microRNA 可能对高糖诱导的腹膜间皮细胞EMT 具有重要调控作用。 |
| 英文摘要: |
| Objective:To determine the expression level of microRNA in the process of epithelial-mesenchymal transition (EMT)
of peritoneal mesothelial cells induced by high glucose.Methods:The peritoneal mesothelial cells were cultured routinely by M199
medium with 10%fetal bovine serum, and the EMT was induced by D-glucose stimulation. The occurrence of EMT was determined by
the change of cell morphology and EMT marker genes expression levels. Cell morphology change was observed by inverted microscope,
and expression levels of EMT marker genes were determined by real-time PCR. The expression levels of microRNA were detected by
real-time PCR with microRNA-specific stem-loop structure primer.Results:The peritoneal mesothelial cells were changed to fusiformcell
morphology following high-glucose medium stimulated 48 hr, and the EMT marker genes were changed significantly, such as the
decreased of E-cadherin and increased of Vimentin (P<0.01 respectively). These result proved the EMT had been induced by
high-glucose. Applied real-time PCR with microRNA -specific stem-loop structure primer, miR-193a was detected increased notably
(P<0.01), and miR-15a and let-7e was increased (P<0.01), while miR-16 and miR-21 had no significant change (P>0.05). Importantly the
iincrease of miR-193a was positive correlation with stimulus duration.Conclusion:It is indicated that the abnormal expression of
MicroRNA in rpithelial-Mesenchymal could influence the transition of eritoneal mesothelial cells which was induced by high glucose |
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