首页> 外文期刊>Clinical immunology: The official journal of the Clinical Immunology Society >T cell-antigen-presenting cell interactions visualized in vivo in a model of antigen-specific inflammation.
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T cell-antigen-presenting cell interactions visualized in vivo in a model of antigen-specific inflammation.

机译:在抗原特异性炎症模型中,可以在体内观察到T细胞抗原递呈的细胞相互作用。

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Videomicroscopy is being used increasingly to characterize the interaction of T cells and antigen-presenting cells (APCs) within lymphatic tissues but has not been reported, to our knowledge, at sites of inflammation. We employed intravital videomicroscopy to study an anterior uveitis model using DO11.10 T cells and ovalbumin (OVA). T cell movement in iris was consistent with a random walk independent of the presence of recognized antigen and had a lateral speed slower than T cells in lymph node. Lingering of T cells adjacent to APCs suggested that they were physically interacting. This apparent contact demonstrated antigen specificity when comparing results from DO11.10 cells with OVA versus bovine serum albumin (BSA) loaded APCs but not when comparing results from OVA-loaded APCs with DO11.10 versus HA clonotype 6.5 T cells. Further studies with this model system should clarify the contribution of T cell-APC communication at a site of inflammation, infection, or immunization.
机译:越来越多地使用视频显微镜来表征淋巴组织内T细胞和抗原呈递细胞(APC)的相互作用,但据我们所知,在炎症部位尚未见报道。我们采用活体视频显微镜术研究了使用DO11.10 T细胞和卵清蛋白(OVA)的前葡萄膜炎模型。虹膜中的T细胞运动与独立行走无关,与公认抗原的存在无关,并且横向速度比淋巴结中的T细胞慢。与APC相邻的T细胞的残留表明它们在物理上相互作用。当比较来自带有OVA的DO11.10细胞与牛血清白蛋白(BSA)的APC的结果时,这种明显的接触证明了抗原特异性,但是相比之下,带有DO11.10的带有OVA的APC与HA克隆型6.5 T细胞的结果相比,则没有这种抗原接触。此模型系统的进一步研究应阐明在炎症,感染或免疫部位的T细胞-APC通讯的贡献。

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