Gene Expression Profiling of Lacrimal Glands Identifies the Ectopic Expression of MHC II on Glandular Cells as a Presymptomatic Feature in a Mouse Model of Primary Sjögren's Syndrome.

Gene Expression Profiling of Lacrimal Glands Identifies the Ectopic Expression of MHC II on Glandular Cells as a Presymptomatic Feature in a Mouse Model of Primary Sjögren's Syndrome.
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泪腺基因表达谱鉴定出 MHC II 在腺细胞上的异位表达是原发性干燥综合征小鼠模型的症状前特征。

DOI:
10.3389/fimmu.2018.02362
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发表时间:
2018
影响因子:
7.3
通讯作者:
Yu X
Yu X
中科院分区:
医学2区
文献类型:
--
作者:
Yin J;Zheng J;Deng F;Zhao W;Chen Y;Huang Q;Huang R;Wen L;Yue X;Petersen F;Yu X

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MHC II分子在腺细胞上的异位表达是原发性Sjögren综合征(pSS)的一个特征。然而,这种异位表达的原因及其在疾病发病机制中的潜在作用仍然难以捉摸。在这里,我们报告了MHC II分子在腺细胞上的异位表达代表了免疫TiterMax®乳化的Ro60_316-335肽作为佐剂诱导的pSS小鼠模型的早期症状前事件。TiterMax®可诱导MHC II异位表达,而完全弗里德佐剂(CFA)则不能。此外,用TiterMax®乳化而非CFA乳化的Ro60_316-335肽免疫小鼠可诱导pss样疾病。我们的研究结果表明,MHC II分子在腺细胞上的异位表达代表了pSS的症状前特征,并且这种异位表达可以由外源性因素诱导。此外,本研究还提供了一种佐剂如何增强免疫反应的新机制。
Ectopic expression of MHC II molecules on glandular cells is a feature of primary Sjögren's syndrome (pSS). However, the cause of this ectopic expression and its potential role in the pathogenesis of the disease remains elusive. Here, we report that ectopic expression of MHC II molecules on glandular cells represents an early presymptomatic event in a mouse model of pSS induced by immunization of Ro60_316-335 peptide emulsified in TiterMax® as an adjuvant. Ectopic expression of MHC II was induced by TiterMax® but not by complete freund's adjuvant (CFA). Furthermore, immunization with Ro60_316-335 peptide emulsified in TiterMax®, but not in CFA, induced a pSS-like disease in mice. Our results suggests that ectopic expression of MHC II molecules on glandular cells represents a presymptomatic feature of pSS and that such ectopic expression can be induced by exogenous factors. In addition, this study also provides a novel mechanism how adjuvants can amplify immune responses.
缺乏浸润细胞的凋亡是对DA大鼠EAE敏感性高的机制。
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