2018年4月份上半月circRNA研究報(bào)道匯總
4月上旬國(guó)人在circRNA領(lǐng)域研究亮點(diǎn)不少,如中科院生物物理所范祖森教授與王碩研究員為共同通訊作者的研究成果發(fā)表在著名免疫學(xué)雜志Immunity上,該文首先通過(guò)高通量測(cè)序技術(shù)篩選到與造血干細(xì)胞干性維持相關(guān)關(guān)鍵circRNA分子——Cia-cGAS,進(jìn)一步通過(guò)RNA pull-down,F(xiàn)ISH共定位和EMSA等實(shí)驗(yàn)驗(yàn)證相關(guān)作用蛋白,闡明合DNA敏感的cGAMP合酶cGAS并抑制其活性,調(diào)控長(zhǎng)效造血干細(xì)胞(LT-HSC)靜息狀態(tài)(文獻(xiàn)解讀見(jiàn)官網(wǎng)“技術(shù)前沿”歷史文章:環(huán)形RNA參與造血干細(xì)胞靜息狀態(tài)調(diào)控)。四川大學(xué)華西醫(yī)院研究者發(fā)表在cell reasearch雜志上融合環(huán)狀RNA(F-circEA)有可能作為EML4-ALk陽(yáng)性非小細(xì)胞肺癌的診斷標(biāo)記物(文獻(xiàn)解讀見(jiàn)官網(wǎng)“技術(shù)前沿”歷史文章:新型融合基因來(lái)源環(huán)形RNA可能作為肺癌診斷標(biāo)志物)?。其他circRNA相關(guān)文獻(xiàn)大家可以根據(jù)文末的文獻(xiàn)列表下載原文進(jìn)行查閱。下面我們結(jié)合最新幾篇circRNA綜述文章回顧下circRNA的研究進(jìn)展。
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2、circRNA形成機(jī)制3、circRNA與miRNA互作機(jī)制4、circRNA調(diào)控腫瘤細(xì)胞增殖
圖注:circRNA調(diào)控腫瘤細(xì)胞增殖示意圖,CDR1as, circMTO1, circRNA_100290, circTCF25, hsa_circ_0013968, circPVT1,?和?hsa_circ_001569等分子可通過(guò)調(diào)控細(xì)胞周期相關(guān)蛋白,影響細(xì)胞增殖,而cir-ITCH可通過(guò)調(diào)控wnt/β-catenin信號(hào)通路促進(jìn)細(xì)胞增殖。
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圖注:circRNA調(diào)控腫瘤細(xì)胞凋亡示意圖,circCCDC66通過(guò)抑制miR-93,促進(jìn)c-MYC表達(dá),進(jìn)一步促進(jìn)細(xì)胞凋亡;circUBAP2可通過(guò)競(jìng)爭(zhēng)結(jié)合miR-143,降低黑色素瘤和骨肉瘤細(xì)胞凋亡。
圖注:circRNA調(diào)控腫瘤侵襲與轉(zhuǎn)移,多種circRNA分子參與調(diào)控RhoC,Notch,VEGFA,IL6R和HNF-1β通過(guò)PI3K和AKT通路調(diào)控腫瘤細(xì)胞侵襲與轉(zhuǎn)移過(guò)程。
圖注:肺癌發(fā)生發(fā)展過(guò)程中circRNA與miRNA等分子調(diào)控互作示意圖,表明在肺癌中多種circRNA可通過(guò)結(jié)合不同的miRNA分子,調(diào)控肺癌細(xì)胞的增殖過(guò)程。
肺癌中差異表達(dá)的circRNA及分子功能統(tǒng)計(jì)表
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參考文獻(xiàn)列表
文 | circRNA 吉賽生物
本文為作者授權(quán)肽度時(shí)界發(fā)布
僅為作者觀點(diǎn),不代表肽度時(shí)界立場(chǎng),轉(zhuǎn)載請(qǐng)注明來(lái)源肽度時(shí)界


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