调节性T细胞在poly I:C/D-GalN诱发的肝脏损伤中的免疫调节作用
发布时间:2021-03-17 22:52
目的:探讨调节性T细胞在Polyinosinic-polycytidylic acid(poly I:C)/D-galactosamine(D-GalN)诱发的急性肝脏损伤中的作用及其机制。方法:建立poly I:C/D-GalN诱发的爆发性肝炎小鼠模型,观察比较野生型C57BL/6小鼠、Rag1-/-小鼠(C57BL/6背景)和过继转输调节性T细胞的Rag1-/-小鼠的血清转氨酶活性;肝脏HE染色评价小鼠肝组织病理形态学改变;实时荧光定量PCR检测肝脏TNF-α和IFN-γmRNA水平;ELISA检测血清IFN-γ和TNF-α蛋白水平。结果:poly I:C/D-GalN联合注射后,与野生型小鼠相比,Rag1-/-小鼠血清转氨酶水平明显增高,肝脏损伤更加严重,炎性因子mRNA水平和蛋白水平都显著增加。给Rag1-/-小鼠过继转输CD25+细胞后能明显降低poly I:C/D-GalN诱导的肝脏损伤。结论:调节性T细胞对poly I:C/D-GalN诱发的肝脏损伤有抑制作用,提示调节性T细胞可以负向调节天然免疫细胞。
【文章来源】:中国免疫学杂志. 2014,30(01)北大核心
【文章页数】:6 页
【部分图文】:
野生型小鼠和Rag1-/-小鼠polyI:C/D-GalN注射后12、18、24和48h检测转氨酶水平
图1野生型小鼠和Rag1-/-小鼠polyI:C/D-GalN注射后12、18、24和48h检测转氨酶水平Fig.1WTmiceandRag1-/-micewereinjectedwithpo-lyI:C/D-GalNat12,18,24and48hoursafterin-jection,serumALTlevelsweremeasuredNote:*.P<0.05(n=12/group).图2野生型小鼠和Rag1-/-小鼠polyI:C/D-GalN注射后18、24和48h肝脏H-E染色(×100)Fig.2WTmiceandRag1-/-micewereinjectedwithpo-lyI:C/D-GalNat18,24and48hoursafterinjec-tion,liversamplesfrommicewereanalyzedbyH-Estaining(originalmagnification×100)图3RT-PCR检测肝脏中TNF-α和IFN-γ的mRNA水平Fig.3TNF-αandIFN-γmRNAexpressionofhepaticweremeasuredbyquantitativereal-timeRT-PCRNote:*.P<0.05(n=12/group).图4ELISA检测血清中TNF-α和IFN-γ的蛋白水平Fig.4SerumlevelsofTNF-αandIFN-γweremeasuredbyELISANote:*.P<0.05(n=12/group).图5转输CD25+细胞,转输CD25-细胞以及未转输细胞的Rag1-/-小鼠polyI:C/D-GalN注射后18h检测转氨酶水平Fig.5Rag1-/-micewithtransferCD25+,transferCD25-cellsanddidnottransfercellswereinjec-tedwithpolyI:C/D-GalN,at18hoursafterin-jection,serumALTlevelsweremeasuredNote:*.P<0.05(n=12/group).C/D-GalN注射后12、18、24和48hRag1-/-小鼠肝脏IFN-γ的mRNA水平明显高于WT小鼠(P<·26·中国免疫学杂志2014年第30卷
图1野生型小鼠和Rag1-/-小鼠polyI:C/D-GalN注射后12、18、24和48h检测转氨酶水平Fig.1WTmiceandRag1-/-micewereinjectedwithpo-lyI:C/D-GalNat12,18,24and48hoursafterin-jection,serumALTlevelsweremeasuredNote:*.P<0.05(n=12/group).图2野生型小鼠和Rag1-/-小鼠polyI:C/D-GalN注射后18、24和48h肝脏H-E染色(×100)Fig.2WTmiceandRag1-/-micewereinjectedwithpo-lyI:C/D-GalNat18,24and48hoursafterinjec-tion,liversamplesfrommicewereanalyzedbyH-Estaining(originalmagnification×100)图3RT-PCR检测肝脏中TNF-α和IFN-γ的mRNA水平Fig.3TNF-αandIFN-γmRNAexpressionofhepaticweremeasuredbyquantitativereal-timeRT-PCRNote:*.P<0.05(n=12/group).图4ELISA检测血清中TNF-α和IFN-γ的蛋白水平Fig.4SerumlevelsofTNF-αandIFN-γweremeasuredbyELISANote:*.P<0.05(n=12/group).图5转输CD25+细胞,转输CD25-细胞以及未转输细胞的Rag1-/-小鼠polyI:C/D-GalN注射后18h检测转氨酶水平Fig.5Rag1-/-micewithtransferCD25+,transferCD25-cellsanddidnottransfercellswereinjec-tedwithpolyI:C/D-GalN,at18hoursafterin-jection,serumALTlevelsweremeasuredNote:*.P<0.05(n=12/group).C/D-GalN注射后12、18、24和48hRag1-/-小鼠肝脏IFN-γ的mRNA水平明显高于WT小鼠(P<·26·中国免疫学杂志2014年第30卷
本文编号:3087856
【文章来源】:中国免疫学杂志. 2014,30(01)北大核心
【文章页数】:6 页
【部分图文】:
野生型小鼠和Rag1-/-小鼠polyI:C/D-GalN注射后12、18、24和48h检测转氨酶水平
图1野生型小鼠和Rag1-/-小鼠polyI:C/D-GalN注射后12、18、24和48h检测转氨酶水平Fig.1WTmiceandRag1-/-micewereinjectedwithpo-lyI:C/D-GalNat12,18,24and48hoursafterin-jection,serumALTlevelsweremeasuredNote:*.P<0.05(n=12/group).图2野生型小鼠和Rag1-/-小鼠polyI:C/D-GalN注射后18、24和48h肝脏H-E染色(×100)Fig.2WTmiceandRag1-/-micewereinjectedwithpo-lyI:C/D-GalNat18,24and48hoursafterinjec-tion,liversamplesfrommicewereanalyzedbyH-Estaining(originalmagnification×100)图3RT-PCR检测肝脏中TNF-α和IFN-γ的mRNA水平Fig.3TNF-αandIFN-γmRNAexpressionofhepaticweremeasuredbyquantitativereal-timeRT-PCRNote:*.P<0.05(n=12/group).图4ELISA检测血清中TNF-α和IFN-γ的蛋白水平Fig.4SerumlevelsofTNF-αandIFN-γweremeasuredbyELISANote:*.P<0.05(n=12/group).图5转输CD25+细胞,转输CD25-细胞以及未转输细胞的Rag1-/-小鼠polyI:C/D-GalN注射后18h检测转氨酶水平Fig.5Rag1-/-micewithtransferCD25+,transferCD25-cellsanddidnottransfercellswereinjec-tedwithpolyI:C/D-GalN,at18hoursafterin-jection,serumALTlevelsweremeasuredNote:*.P<0.05(n=12/group).C/D-GalN注射后12、18、24和48hRag1-/-小鼠肝脏IFN-γ的mRNA水平明显高于WT小鼠(P<·26·中国免疫学杂志2014年第30卷
图1野生型小鼠和Rag1-/-小鼠polyI:C/D-GalN注射后12、18、24和48h检测转氨酶水平Fig.1WTmiceandRag1-/-micewereinjectedwithpo-lyI:C/D-GalNat12,18,24and48hoursafterin-jection,serumALTlevelsweremeasuredNote:*.P<0.05(n=12/group).图2野生型小鼠和Rag1-/-小鼠polyI:C/D-GalN注射后18、24和48h肝脏H-E染色(×100)Fig.2WTmiceandRag1-/-micewereinjectedwithpo-lyI:C/D-GalNat18,24and48hoursafterinjec-tion,liversamplesfrommicewereanalyzedbyH-Estaining(originalmagnification×100)图3RT-PCR检测肝脏中TNF-α和IFN-γ的mRNA水平Fig.3TNF-αandIFN-γmRNAexpressionofhepaticweremeasuredbyquantitativereal-timeRT-PCRNote:*.P<0.05(n=12/group).图4ELISA检测血清中TNF-α和IFN-γ的蛋白水平Fig.4SerumlevelsofTNF-αandIFN-γweremeasuredbyELISANote:*.P<0.05(n=12/group).图5转输CD25+细胞,转输CD25-细胞以及未转输细胞的Rag1-/-小鼠polyI:C/D-GalN注射后18h检测转氨酶水平Fig.5Rag1-/-micewithtransferCD25+,transferCD25-cellsanddidnottransfercellswereinjec-tedwithpolyI:C/D-GalN,at18hoursafterin-jection,serumALTlevelsweremeasuredNote:*.P<0.05(n=12/group).C/D-GalN注射后12、18、24和48hRag1-/-小鼠肝脏IFN-γ的mRNA水平明显高于WT小鼠(P<·26·中国免疫学杂志2014年第30卷
本文编号:3087856
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