标题:Activated γδ T Cells Promote Dendritic Cell Maturation and Exacerbate the Development of Experimental Autoimmune Uveitis (EAU) in Mice
作者:Wang B.; Tian Q.; Guo D.; Lin W.; Xie X.; Bi H.
作者机构:[Wang, B] First Clinical College, Shandong University of Traditional Chinese Medicine, Jinan, China, Department of Ophthalmology, Affiliated Eye Hospi 更多
通讯作者:Bi, H(hongshengbi1@163.com)
通讯作者地址:[Bi, H] Affiliated Eye Hospital of Shandong University of Traditional Chinese Medicine, No. 48#, Yingxiongshan Road, China;
来源:Immunological Investigations
出版年:2020
DOI:10.1080/08820139.2020.1716786
关键词:autoreaction; dendritic cell; Experimental autoimmune uveitis; mouse model; γδ T cell
摘要:Our previous study reveals that gamma delta (γδ) T cells were activated and dendritic cells (DCs) underwent maturation during the inflammation phase in experimental autoimmune uveitis (EAU) mice, and the interaction between DCs and γδ T cells may significantly exacerbate the development of EAU. However, the interactions between DCs and γδ T cells that can affect DCs maturation to influence EAU development must be further addressed. In this study we showed that mature DC numbers in TCR-δ−/− (KO) EAU mice were lower than those in wild-type (WT) C57BL/6 (B6) mice. The γδ T cells harvested from WT EAU mice secreted more interferon-γ (IFN-γ), however, after blocking IFN-γ, the maturation of DCs was significantly downregulated. By contrast, the percentage of IFN-γ- and IL-17-producing CD4+ T cells in KO EAU mice decreased to a greater extent than that in WT EAU mice during the inflammatory phase. Additionally, the levels of IFN-γ/IL-17 in serum were in agreement with those of CD4+ T cells. Furthermore, after activated γδ T cells injection, the inflammatory symptoms of EAU mice were more aggravated. In vitro co-cultures of both cell types showed that activated γδ T cells may induce DCs to generate higher levels of intracellular cell adhesion molecule-1 (ICAM-1/CD54), CD80, CD83, and CD86. Moreover, co-culture of the two cells may induce the activation of CD4+ T cells. Taken together, our results demonstrated that activated γδ T cells may promote DCs maturation and further enhance the generation of Th1/Th17 cells in EAU mice, resulting in exacerbated EAU. © 2020, © 2020 Taylor & Francis Group, LLC.
收录类别:SCOPUS
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85078403342&doi=10.1080%2f08820139.2020.1716786&partnerID=40&md5=ebc64905fe2f9c15252be49ccb4dc3b9
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