How to connect an IgE-driven response with CTL activity?

How to connect an IgE-driven response with CTL activity?
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如何将 IgE 驱动的反应与 CTL 活动联系起来?

DOI:
10.1007/s00262-011-1127-y
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发表时间:
2012
期刊:
Cancer immunology, immunotherapy : CII
影响因子:
--
通讯作者:
Fiebiger,Edda
Fiebiger,Edda
中科院分区:
--
文献类型:
--
作者:
Platzer,Barbara;Dehlink,Eleonora;Turley,ShannonJ;Fiebiger,Edda

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肿瘤细胞免疫治疗的目标之一是诱导肿瘤特异性细胞毒性T淋巴细胞(CTL)应答。为了实现这一目标,可以利用树突状细胞(DC)交叉呈递肿瘤抗原的能力。通过交叉呈递诱导CTL的最有效途径之一是由IgG类免疫球蛋白介导的,DC使用IgG类免疫球蛋白通过Fc-γ受体对免疫复合物形式的抗原进行采样。DCs能否以类似的方式使用IgE介导的交叉呈递机制来诱导CTL?我们在这里讨论了两种人IgE Fc受体FcεRI和FcεRII作为IgE介导的交叉呈递的抗原摄取受体的潜力。我们的结论是IgE介导的交叉呈递途径的存在将提供IgE驱动的免疫应答和CTL活性之间的直接联系。
One of the goals of cell-based immune therapy in cancer is the induction of tumor-specific cytotoxic T-lymphocyte (CTL) responses. To achieve this objective, the ability of dendritic cells (DC) to cross-present tumor antigens can be exploited. One of the most efficient pathways for the induction of CTLs by cross-presentation is mediated by immunoglobulins of the IgG class, which are used by DCs to sample antigen in the form of immune complexes via Fc-gamma receptors. Could DCs use an IgE-mediated cross-presentation mechanism in a comparable manner to induce CTLs? We here discuss the potential of two human IgE Fc receptors, FcεRI and FcεRII, to serve as antigen uptake receptors for IgE-mediated cross-presentation. We conclude that the existence of an IgE-mediated cross-presentation pathway would provide a direct link between IgE-driven immune responses and CTL activity.
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