目的检测盘状红斑狼疮(DLE)患者外周T淋巴细胞CD70基因表达水平,并探讨CD70基因在DLE发病机理中的作用。方法 RT-PCR测定2014年1月至2015年6月在我院就诊的15例活动期、15例非活动期DLE患者和同期健康体检的15例健康人(对照组)外周血T...目的检测盘状红斑狼疮(DLE)患者外周T淋巴细胞CD70基因表达水平,并探讨CD70基因在DLE发病机理中的作用。方法 RT-PCR测定2014年1月至2015年6月在我院就诊的15例活动期、15例非活动期DLE患者和同期健康体检的15例健康人(对照组)外周血T淋巴细胞CD70 m RNA转录水平,流式细胞术检测各组样本中CD4+CD70+T/CD8+CD70+T的阳性率。结果活动期和非活动期DLE患者T淋巴细胞中的CD70 m RNA转录水平分别为(4.5±0.19)和(2.9±0.09),显著高于对照组的(1.9±0.11),差异均有显著统计学意义(P<0.01),且活动期DLE患者T淋巴细胞中的CD70 m RNA的转录水平明显高于非活动期DLE患者,差异具有统计学意义(P<0.05);活动期和非活动期DLE患者的外周血CD4+CD70+T淋巴细胞的阳性率分别为(18.82±1.22)%和(15.32±1.01)%,明显高于对照组的(14.63±0.41)%,差异均有统计学意义(P<0.05或P<0.01),且活动期DLE患者的阳性率显著高于非活动期DLE患者,统计有显著统计学意义(P<0.01);活动期和非活动期DLE患者T淋巴细胞中CD8+CD70+的阳性率与对照组比较,差异均无统计学意义(P>0.05)。结论 CD70基因的过度表达在DLE的发生发展中起着重要的作用,且CD70过度表达可作为检测DLE疾病患者的一个重要指标。展开更多
The 8^th International Workshop on Human Leucocyte Differentiation Antigens （chaired by HZ and managed by BS） was run over a 4-year period and culminated in a conference in December 2004. Here we review the achievem...The 8^th International Workshop on Human Leucocyte Differentiation Antigens （chaired by HZ and managed by BS） was run over a 4-year period and culminated in a conference in December 2004. Here we review the achievements of the HLDA Workshops and provide links to information on CD molecules and antibodies against them, including the 93 new CDs assigned in the 8^th Workshop. We consider what remains to be achieved （including an estimate of the number of leucocyte surface molecules still to be discovered）, and how the field can best move forward.展开更多
activation.Therefore,engagement of the costimulatory CD27/CD70 pathway is solely dependent on upregulation of CD70.However,the T cell-intrinsic effect and function of human CD70 remain underexplored.Herein,we describe...activation.Therefore,engagement of the costimulatory CD27/CD70 pathway is solely dependent on upregulation of CD70.However,the T cell-intrinsic effect and function of human CD70 remain underexplored.Herein,we describe that CD70 expression distinguishes proinflammatory CD4^(+)T lymphocytes that display an increased potential to migrate into the central nervous system(CNS).Upregulation of CD70 on CD4^(+)T lymphocytes is induced by TGF-β1 and TGF-β3,which promote a pathogenic phenotype.In addition,CD70 is associated with a TH1 and TH17 profile of lymphocytes and is important for T-bet and IFN-γexpression by both T helper subtypes.Moreover,adoptive transfer of CD70−/−CD4^(+)T lymphocytes induced less severe experimental autoimmune encephalomyelitis(EAE)disease than transfer of WT CD4^(+)T lymphocytes.CD70+CD4^(+)T lymphocytes are found in the CNS during acute autoimmune inflammation in humans and mice,highlighting CD70 as both an immune marker and an important costimulator of highly pathogenic proinflammatory TH1/TH17 lymphocytes infiltrating the CNS.展开更多
文摘目的检测盘状红斑狼疮(DLE)患者外周T淋巴细胞CD70基因表达水平,并探讨CD70基因在DLE发病机理中的作用。方法 RT-PCR测定2014年1月至2015年6月在我院就诊的15例活动期、15例非活动期DLE患者和同期健康体检的15例健康人(对照组)外周血T淋巴细胞CD70 m RNA转录水平,流式细胞术检测各组样本中CD4+CD70+T/CD8+CD70+T的阳性率。结果活动期和非活动期DLE患者T淋巴细胞中的CD70 m RNA转录水平分别为(4.5±0.19)和(2.9±0.09),显著高于对照组的(1.9±0.11),差异均有显著统计学意义(P<0.01),且活动期DLE患者T淋巴细胞中的CD70 m RNA的转录水平明显高于非活动期DLE患者,差异具有统计学意义(P<0.05);活动期和非活动期DLE患者的外周血CD4+CD70+T淋巴细胞的阳性率分别为(18.82±1.22)%和(15.32±1.01)%,明显高于对照组的(14.63±0.41)%,差异均有统计学意义(P<0.05或P<0.01),且活动期DLE患者的阳性率显著高于非活动期DLE患者,统计有显著统计学意义(P<0.01);活动期和非活动期DLE患者T淋巴细胞中CD8+CD70+的阳性率与对照组比较,差异均无统计学意义(P>0.05)。结论 CD70基因的过度表达在DLE的发生发展中起着重要的作用,且CD70过度表达可作为检测DLE疾病患者的一个重要指标。
文摘The 8^th International Workshop on Human Leucocyte Differentiation Antigens （chaired by HZ and managed by BS） was run over a 4-year period and culminated in a conference in December 2004. Here we review the achievements of the HLDA Workshops and provide links to information on CD molecules and antibodies against them, including the 93 new CDs assigned in the 8^th Workshop. We consider what remains to be achieved （including an estimate of the number of leucocyte surface molecules still to be discovered）, and how the field can best move forward.
基金T.D.holds a fellowship from the Fonds de Recherche du Québec-Santé(FRQS).L.T.holds scholarships from Universitéde Montréal and CRCHUM.E.P.holds a fellowship from the Multiple Sclerosis Society of Canada(MSSC)and the FRQS.S.Z.is supported by a fellowship from Biogen Canada.C.L.is supported by FRQS.A.P.holds the T1(senior)Canada Research Chair in Multiple Sclerosis.This work was funded by operating grants from the Canadian Institutes of Health Research(MOP 89885,PJI-153195)and from the MSSC(EGID 2382).We thank Jannie Borst for providing us with the CD70−/−mice.We thank Hartmut Wekerle for providing us with the TCR1640 mice.Special thanks to Magdalena Paterka and Volker Siffrin for providing the protocol for CD4+adoptive T cell transfer in RAG null mice.We would also like to thank the imaging platform,the pathology platform,and the flow cytometry platform from the CRCHUM for the excellent technical support and Alice M Roy and Elvia Gonzalez for their excellent technical animal support.
文摘activation.Therefore,engagement of the costimulatory CD27/CD70 pathway is solely dependent on upregulation of CD70.However,the T cell-intrinsic effect and function of human CD70 remain underexplored.Herein,we describe that CD70 expression distinguishes proinflammatory CD4^(+)T lymphocytes that display an increased potential to migrate into the central nervous system(CNS).Upregulation of CD70 on CD4^(+)T lymphocytes is induced by TGF-β1 and TGF-β3,which promote a pathogenic phenotype.In addition,CD70 is associated with a TH1 and TH17 profile of lymphocytes and is important for T-bet and IFN-γexpression by both T helper subtypes.Moreover,adoptive transfer of CD70−/−CD4^(+)T lymphocytes induced less severe experimental autoimmune encephalomyelitis(EAE)disease than transfer of WT CD4^(+)T lymphocytes.CD70+CD4^(+)T lymphocytes are found in the CNS during acute autoimmune inflammation in humans and mice,highlighting CD70 as both an immune marker and an important costimulator of highly pathogenic proinflammatory TH1/TH17 lymphocytes infiltrating the CNS.
