circ-sirt1抑制THP-1單核細(xì)胞NF-κB激活和炎癥應(yīng)答
發(fā)布時(shí)間:2021-07-24 19:26
目的:單核細(xì)胞浸潤和活化引發(fā)的血管壁持續(xù)性炎癥反應(yīng)是心血管疾病發(fā)病機(jī)制之一。SIRT1是一種維持血管穩(wěn)態(tài)的重要表觀遺傳學(xué)調(diào)控因子,但是,其前體mRNA可變剪接產(chǎn)物的功能尚不清楚。本研究以SIRT1基因外顯子2-7共價(jià)閉合環(huán)化形成的環(huán)狀非編碼RNA circ-sirt1為研究對象,從細(xì)胞和分子水平來探討circ-sirt1在人單核細(xì)胞株(THP-1)炎癥應(yīng)答中的作用。方法:體外培養(yǎng)人單核細(xì)胞株THP-1,采用circ-sirt1重組腺病毒表達(dá)載體(Ad-circ-sirt1),運(yùn)用熒光定量PCR(qRT-PCR)和Western blot方法檢測單核細(xì)胞中IL-1β、IL-6和MCP-1的表達(dá)以及p65蛋白的表達(dá)變化;利用RIP和RNA pull-down分析證實(shí)circ-sirt1和p65蛋白之間的相互作用關(guān)系。結(jié)果:1.為了確定circ-sirt1在單核細(xì)胞中的表達(dá),跨越環(huán)化位點(diǎn)設(shè)計(jì)引物,以總RNA為模板進(jìn)行RT-PCR,對PCR產(chǎn)物進(jìn)行測序,證實(shí)circ-sirt1在單核細(xì)胞中的表達(dá)。2.分別給予佛波酯(PMA)和TNF-α處理單核細(xì)胞,qRT-PCR結(jié)果顯示,PMA和TNF-α可...
【文章來源】:河北醫(yī)科大學(xué)河北省
【文章頁數(shù)】:49 頁
【學(xué)位級別】:碩士
【部分圖文】:
circ-sirt1在THP-1單核細(xì)胞中的表達(dá)
17刺激抑制 THP-1 單核細(xì)胞 circimulation inhibited of circ-sirt1was performed to detect cicells. B: qRT-PCR was performreated THP-1 cells. Data are sumed with TNF-α untreated group.rt1 抑制炎癥因子表達(dá)達(dá) circ-sirt1 對單核細(xì)胞炎毒轉(zhuǎn)染單核細(xì)胞后,給予 TNF
18圖 3 過表達(dá) circ-sirt1 抑制炎癥因子表達(dá)Fig.3 Overexpression of circ-sirt1 inhibits the expression of inflammatoryfactors. A: The expression of circ-sirt1 increased in Ad-circ-sirt1-infectedTHP-1 cells. B. qRT-PCR was performed to detect IL-1β, IL-6 and MCP-1mRNA expression in Ad-circ-sirt1-infected THP-1 cells treated with TNF-α.Data are summarized as mean±SD, n=3. *P<0.05, compared withAd-Vector+TNF-α group.4. circ-sirt1 抑制 NF-κB p65 核轉(zhuǎn)位以往研究表明,NF-κB 是體內(nèi)炎癥反應(yīng)中重要轉(zhuǎn)錄調(diào)控因子,體外實(shí)
本文編號:3301281
【文章來源】:河北醫(yī)科大學(xué)河北省
【文章頁數(shù)】:49 頁
【學(xué)位級別】:碩士
【部分圖文】:
circ-sirt1在THP-1單核細(xì)胞中的表達(dá)
17刺激抑制 THP-1 單核細(xì)胞 circimulation inhibited of circ-sirt1was performed to detect cicells. B: qRT-PCR was performreated THP-1 cells. Data are sumed with TNF-α untreated group.rt1 抑制炎癥因子表達(dá)達(dá) circ-sirt1 對單核細(xì)胞炎毒轉(zhuǎn)染單核細(xì)胞后,給予 TNF
18圖 3 過表達(dá) circ-sirt1 抑制炎癥因子表達(dá)Fig.3 Overexpression of circ-sirt1 inhibits the expression of inflammatoryfactors. A: The expression of circ-sirt1 increased in Ad-circ-sirt1-infectedTHP-1 cells. B. qRT-PCR was performed to detect IL-1β, IL-6 and MCP-1mRNA expression in Ad-circ-sirt1-infected THP-1 cells treated with TNF-α.Data are summarized as mean±SD, n=3. *P<0.05, compared withAd-Vector+TNF-α group.4. circ-sirt1 抑制 NF-κB p65 核轉(zhuǎn)位以往研究表明,NF-κB 是體內(nèi)炎癥反應(yīng)中重要轉(zhuǎn)錄調(diào)控因子,體外實(shí)
本文編號:3301281
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