Normal Th1 development following long-term therapeutic blockade of CD154-CD40 in experimental autoimmune encephalomyelitis.

Normal Th1 development following long-term therapeutic blockade of CD154-CD40 in experimental autoimmune encephalomyelitis.
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实验性自身免疫性脑脊髓炎长期治疗阻断 CD154-CD40 后 Th1 发育正常。

DOI:
10.1172/jci14374
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发表时间:
2002
期刊:
The Journal of clinical investigation
影响因子:
--
通讯作者:
Miller,StephenD
Miller,StephenD
中科院分区:
--
文献类型:
--
作者:
Howard,LaurenceM;Ostrovidov,Serge;Smith,CassandraE;DalCanto,MauroC;Miller,StephenD

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实验性自身免疫性脑脊髓炎(EAE)是一种Th 1介导的中枢神经系统脱髓鞘疾病,与多发性硬化症相似。我们和其他人已经表明,短期抗CD 154 mAb治疗阻断CD 154-CD 40相互作用可用于预防甚至治疗正在进行的PLP 139 -151诱导的复发性EAE。然而,很少有人知道CD 154阻断对抗原特异性T细胞功能发展的长期影响。在这里,我们表明在PLP 139 -151/CFA免疫时用抗CD 154短期治疗在免疫后抑制临床疾病长达100天。此时,通过抗原特异性ELISPOT测定评估,在抗CD 154和对照Ig处理的小鼠中观察到相当数量的Th 1细胞。因此,长期的Th 1/Th 2平衡在很大程度上不受影响。在抗CD 154处理的小鼠中,炎症反应减弱,如通过体内迟发型超敏反应降低和体外脾IFN-γ分泌水平降低所示。然而,在过继转移从抗CD 154处理的小鼠的脾脏分离的T细胞后,这些细胞与从对照处理的小鼠获得的那些细胞一样有效地促成临床疾病。因此,抗CD 154治疗可产生长期疗效,而不会对Th 1发育产生长期影响。
Experimental autoimmune encephalomyelitis (EAE) is a Th1-mediated demyelinating disease of the CNS with similarities to multiple sclerosis. We and others have shown that a short-term course of anti-CD154 mAb treatment to block CD154-CD40 interactions can be used to prevent or even treat ongoing PLP139-151–induced relapsing EAE. However, little is known of the long-term effects of CD154 blockade on the development of antigen-specific T cell function. Here, we show that short-term treatment with anti-CD154 at the time of PLP139-151/CFA immunization inhibits clinical disease for up to 100 days after immunization. At this point, comparable numbers of Th1 cells are observed in anti-CD154 and control Ig–treated mice, as assessed by antigen-specific ELISPOT assays. Thus, the long-term Th1/Th2 balance is largely unaffected. Inflammatory responses are diminished in anti-CD154–treated mice, as indicated by reduced in vivo delayed-type hypersensitivity and reduced levels of splenic IFN-γ secretion in vitro. However, upon adoptive transfer of T cells isolated from the spleens of anti-CD154–treated mice, these cells contributed as effectively to clinical disease as those obtained from control-treated mice. Thus, anti-CD154 therapy leads to long-term therapeutic efficacy without exerting a long-term influence on Th1 development.
CD40L 阻断可预防自身免疫性脑脊髓炎并阻碍 T 细胞分化的 TH1 途径,但不阻碍 TH2 途径
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