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The lncRNA H19 promotes epithelial to mesenchymal transition by functioning as miRNA sponges in colorectal cancer
日期:2016-09-01 標(biāo)簽:H19,miR138,miR200a
The lncRNA H19 promotes epithelial to mesenchymal transition by functioning as miRNA sponges in colorectal cancer
在結(jié)腸癌細(xì)胞中lncRNA H19作為miRNA的海綿體促進(jìn)EMT進(jìn)程
(IF=5.0)
文章思路:
H19作為miR-138、miR-200a的海綿吸附體,即ceRNA(內(nèi)源性競(jìng)爭(zhēng)RNA),通過調(diào)節(jié)miR-138、miR-200a,來調(diào)節(jié)Vimentin、ZEB1與ZEB2的表達(dá),從而調(diào)節(jié)EMT進(jìn)程。
核心Figure:
A圖:構(gòu)建過表達(dá)H19穩(wěn)轉(zhuǎn)株(HT29/SW620細(xì)胞),B圖:H19過表達(dá)細(xì)胞形態(tài)(HT29/SW620細(xì)胞),間充質(zhì)細(xì)胞更接近于長(zhǎng)梭形,細(xì)胞極性更小,C圖:western檢測(cè)EMT過程中的標(biāo)志性蛋白,Ecadherin 蛋白表達(dá)下降,Vimentin蛋白表達(dá)上升。D、E圖:Transwell實(shí)驗(yàn),間充質(zhì)細(xì)胞具有更強(qiáng)的細(xì)胞遷移能力。
A圖:AGO2-RIP,主要用于驗(yàn)證microRNA與lncRNA互作。B圖:生物信息學(xué)預(yù)測(cè)miR138與miR200a與 H19的結(jié)合位點(diǎn),C圖:qPCR檢測(cè)miR138與miR200a對(duì)H19的mRNA的影響,miRNA不會(huì)影響其ceRNA的表達(dá)。D圖:luciferase驗(yàn)證miR138與miR200a與H19的結(jié)合活性。
A圖:qPCR檢測(cè)miR138對(duì) Vimentin的mRNA表達(dá)水平的影響。B圖:western檢測(cè)miR138對(duì) Vimentin的蛋白表達(dá)水平的影響C圖:luciferase實(shí)驗(yàn)驗(yàn)證miR138與Vimentin 編碼區(qū)的結(jié)合。A、B、C圖miR138對(duì) Vimentin的編碼區(qū)結(jié)合,并降解Vimentin的mRNA. D圖:qPCR檢測(cè)H19過表達(dá)細(xì)胞中Vimentin的mRNA表達(dá)水平,E圖:western檢測(cè)H19過表達(dá)細(xì)胞中Vimentin的蛋白表達(dá)水平。luciferase實(shí)驗(yàn)驗(yàn)證H19過表達(dá)細(xì)胞對(duì)Vimentin 編碼區(qū)的的影響。
本公司可進(jìn)行類似實(shí)驗(yàn)的實(shí)驗(yàn)設(shè)計(jì)及整體實(shí)驗(yàn)外包項(xiàng)目。實(shí)驗(yàn)項(xiàng)目可包括慢病毒穩(wěn)轉(zhuǎn)株的建立(過表達(dá)/敲低),qPCR、western、細(xì)胞功能實(shí)驗(yàn)(Transwell、細(xì)胞增殖-CCK8、劃痕、細(xì)胞流式-周期/凋亡檢測(cè)等)AGO2-RIP、生物信息學(xué)預(yù)測(cè)、luciferase。(紅色標(biāo)識(shí)為我公司主營項(xiàng)目)
原文鏈接:https://yunpan.cn/cMtL7gS4WAH2i (提取碼:82da)
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