Department of Dermatology, Columbia University Irving Medical Center, New York, NY, USA.
Medical Research Council Human Immunology Unit, Radcliffe Department of Medicine, Oxford National Institute for Health Research Biomedical Research Centre, Medical Research Council Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK.
Mol Immunol. 2021 Feb;130:14-19. doi: 10.1016/j.molimm.2020.12.006. Epub 2020 Dec 18.
The high expression of CD1a on Langerhans cells in normal human skin suggests a central role for this lipid antigen presenting molecule in skin homeostasis and immunity. Although the lipid antigen presenting function of CD1a has been known for years, the physiological and pathological functions of the CD1a system in human skin remain incompletely understood. This review provides an overview of this active area of investigation, and discusses recent insights into the functions of CD1a, CD1a-restricted T cells, and lipid antigens in inflammatory and allergic skin disease. We include recent publications and work presented at the biennial CD1-MR1 EMBO workshop held in 2019 in Oxford, regarding lipids that increase and those that decrease T cell responses to CD1a.
在正常人体皮肤中,朗格汉斯细胞上 CD1a 的高表达表明,这种脂质抗原呈递分子在皮肤稳态和免疫中起着核心作用。尽管 CD1a 的脂质抗原呈递功能已为人所知多年,但 CD1a 系统在人类皮肤中的生理和病理功能仍不完全清楚。这篇综述概述了这一活跃的研究领域,并讨论了 CD1a、CD1a 限制性 T 细胞和脂质抗原在炎症性和过敏性皮肤病中的功能的最新见解。我们包括了最近的出版物和在 2019 年于牛津举行的两年一次的 CD1-MR1 EMBO 研讨会上发表的关于增加和减少 CD1a 对 T 细胞反应的脂质的工作。