系統(tǒng)性紅斑狼瘡中cGAS-STING信號(hào)通路的異常及其機(jī)制研究
發(fā)布時(shí)間:2021-01-05 22:42
目的:越來越多的研究證據(jù)表明cGAS-STING信號(hào)通路在系統(tǒng)性紅斑狼瘡的疾病發(fā)生發(fā)展中起關(guān)鍵作用。已知干擾素誘導(dǎo)基因IFIT3在系統(tǒng)性紅斑狼瘡患者中升高,然而,IFIT3在系統(tǒng)性紅斑狼瘡發(fā)病機(jī)制中的作用尚不清楚。本研究旨在明確系統(tǒng)性紅斑狼瘡患者單核細(xì)胞中cGAS-STING信號(hào)通路的活化水平,并解析IFIT3如何參與cGAS-STING信號(hào)通路的過度激活。方法:1.通過實(shí)時(shí)熒光定量核酸擴(kuò)增實(shí)驗(yàn)檢測(cè)單核細(xì)胞中VACV70誘導(dǎo)的IFNβ表達(dá)水平,比較系統(tǒng)性紅斑狼瘡患者與健康對(duì)照cGAS-STING信號(hào)通路的活化水平并分析cGAS-STING信號(hào)通路的活化水平與臨床表現(xiàn)的關(guān)系;2.檢測(cè)系統(tǒng)性紅斑狼瘡患者與健康對(duì)照單核細(xì)胞中IFIT3的表達(dá)水平,應(yīng)用統(tǒng)計(jì)學(xué)軟件分析cGAS-STING信號(hào)通路活化水平與IFIT3表達(dá)水平的相關(guān)性;3.通過在細(xì)胞系中應(yīng)用CRISPR-Cas9技術(shù)敲除IFIT3以及應(yīng)用質(zhì)粒構(gòu)建技術(shù)過表達(dá)IFIT3,明確IFIT3在cGAS-STING信號(hào)通路中的調(diào)節(jié)作用;4.通過免疫共沉淀及蛋白免疫印跡實(shí)驗(yàn)鑒定IFIT3與其他蛋白之間的相互作用,分析IFIT3調(diào)節(jié)cGAS-STI...
【文章來源】:上海交通大學(xué)上海市 211工程院校 985工程院校 教育部直屬院校
【文章頁數(shù)】:90 頁
【學(xué)位級(jí)別】:博士
【部分圖文】:
密度梯度離心法分離PBMC示意圖
應(yīng)用 Mann-Whitney U 檢驗(yàn)進(jìn)行差異統(tǒng)計(jì)。Enhanced activation of cGAS-STING signaling pathway in mytes from 11 SLE patients or 11 normal controls were stim for 6 hours. Induction IFNβ mRNA was then measured by qPrelative to the untreated monocytes of a normal control. B. 11 normal controls were stimulated with VACV70 for 24 r IFNβ production by ELISA. Horizontal lines and error bare determined by nonparametric Mann-Whitney test.我們比較了 7 名用大劑量糖皮質(zhì)激素沖擊治療前后系統(tǒng)性0 誘導(dǎo)的 IFNβ 表達(dá)水平。這 7 名患者每天糖皮質(zhì)激素使用 5 天。如圖 3 所示,治療后 IFNβ 誘導(dǎo)水平顯著低于治療抑制 cGAS-STING 信號(hào)通路的活化水平。
圖 5. cGAS-STING 信號(hào)通路在其他自身免疫類風(fēng)濕關(guān)節(jié)炎患者、10 名強(qiáng)直性脊柱炎患者和 刺激 6 小時(shí),qPCR 檢測(cè) IFNβ mRNA 水平。B. 30體外 VACV70 刺激 6 小時(shí),qPCR 檢測(cè) IFNβ mRNAn-Whitney U 檢驗(yàn)進(jìn)行差異統(tǒng)計(jì)。ure 5.Activation of cGAS-STING signaling pathway icytes from 10 RA patients or 10 AS patients or 11 nor for 6 hours. Induction IFNβ mRNA was then measur relative to the untreated monocytes of a normal conr 30 normal controls were stimulated with VACV70 fmeasured by qPCR. Horizontal lines and error bars shd by nonparametric Mann-Whitney test.
本文編號(hào):2959428
【文章來源】:上海交通大學(xué)上海市 211工程院校 985工程院校 教育部直屬院校
【文章頁數(shù)】:90 頁
【學(xué)位級(jí)別】:博士
【部分圖文】:
密度梯度離心法分離PBMC示意圖
應(yīng)用 Mann-Whitney U 檢驗(yàn)進(jìn)行差異統(tǒng)計(jì)。Enhanced activation of cGAS-STING signaling pathway in mytes from 11 SLE patients or 11 normal controls were stim for 6 hours. Induction IFNβ mRNA was then measured by qPrelative to the untreated monocytes of a normal control. B. 11 normal controls were stimulated with VACV70 for 24 r IFNβ production by ELISA. Horizontal lines and error bare determined by nonparametric Mann-Whitney test.我們比較了 7 名用大劑量糖皮質(zhì)激素沖擊治療前后系統(tǒng)性0 誘導(dǎo)的 IFNβ 表達(dá)水平。這 7 名患者每天糖皮質(zhì)激素使用 5 天。如圖 3 所示,治療后 IFNβ 誘導(dǎo)水平顯著低于治療抑制 cGAS-STING 信號(hào)通路的活化水平。
圖 5. cGAS-STING 信號(hào)通路在其他自身免疫類風(fēng)濕關(guān)節(jié)炎患者、10 名強(qiáng)直性脊柱炎患者和 刺激 6 小時(shí),qPCR 檢測(cè) IFNβ mRNA 水平。B. 30體外 VACV70 刺激 6 小時(shí),qPCR 檢測(cè) IFNβ mRNAn-Whitney U 檢驗(yàn)進(jìn)行差異統(tǒng)計(jì)。ure 5.Activation of cGAS-STING signaling pathway icytes from 10 RA patients or 10 AS patients or 11 nor for 6 hours. Induction IFNβ mRNA was then measur relative to the untreated monocytes of a normal conr 30 normal controls were stimulated with VACV70 fmeasured by qPCR. Horizontal lines and error bars shd by nonparametric Mann-Whitney test.
本文編號(hào):2959428
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