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Skin-resident natural killer T cells participate in cutaneous allergic inflammation in atopic dermatitis

Authors
 ZhengWang Sun  ;  Ji Hye Kim  ;  Seo Hyeong Kim  ;  Hye Ran Kim  ;  KeLun Zhang  ;  Youdong Pan  ;  Min Kyung Ko  ;  Bo Mi Kim  ;  Howard Chu  ;  Hee Ra Lee  ;  Hye Li Kim  ;  Ji Hyung Kim  ;  Xiujun Fu  ;  Young-Min Hyun  ;  Ki Na Yun  ;  Jin Young Kim  ;  Dong Won Lee  ;  Seung Yong Song  ;  Charles P Lin  ;  Rachael A Clark  ;  Kwang Hoon Lee  ;  Thomas S Kupper  ;  Chang Ook Park 
Citation
 JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY, Vol.147(5) : 1764-1777, 2021-05 
Journal Title
JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY
ISSN
 0091-6749 
Issue Date
2021-05
Keywords
Atopic dermatitis ; CXCL12 ; CXCR4 ; T(RM) cells ; natural killer T cells ; thymic stromal lymphopoietin ; tissue-resident memory T cells
Abstract
Background: Natural killer T (NKT) cells are unconventional T cells that bridge innate and adaptive immunity. NKT cells have been implicated in the development of atopic dermatitis (AD).

Objective: We aimed to investigate the role of NKT cells in AD development, especially in skin.

Methods: Global proteomic and transcriptomic analyses were performed by using skin and blood from human healthy-controls and patients with AD. Levels of CXCR4 and CXCL12 expression in skin NKT cells were analyzed in human AD and mouse AD models. By using parabiosis and intravital imaging, the role of skin CXCR4+ NKT cells was further evaluated in models of mice with AD by using CXCR4-conditionally deficient or CXCL12 transgenic mice.

Results: CXCR4 and its cognate ligand CXCL12 were significantly upregulated in the skin of humans with AD by global transcriptomic and proteomic analyses. CXCR4+ NKT cells were enriched in AD skin, and their levels were consistently elevated in our models of mice with AD. Allergen-induced NKT cells participate in cutaneous allergic inflammation. Similar to tissue-resident memory T cells, the predominant skin NKT cells were CXCR4+ and CD69+. Skin-resident NKT cells uniquely expressed CXCR4, unlike NKT cells in the liver, spleen, and lymph nodes. Skin fibroblasts were the main source of CXCL12. CXCR4+ NKT cells preferentially trafficked to CXCL12-rich areas, forming an enriched CXCR4+ tissue-resident NKT cells/CXCL12+ cell cluster that developed in acute and chronic allergic inflammation in our models of mice with AD.

Conclusions: CXCR4+ tissue-resident NKT cells may form a niche that contributes to AD, in which CXCL12 is highly expressed.
Full Text
https://www.sciencedirect.com/science/article/pii/S009167492100097
DOI
10.1016/j.jaci.2020.11.049
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Anatomy (해부학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Dermatology (피부과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Plastic and Reconstructive Surgery (성형외과학교실) > 1. Journal Papers
Yonsei Authors
Chu, Howard(곡원호)
Park, Chang Ook(박창욱) ORCID logo https://orcid.org/0000-0003-3856-1201
Song, Seung Yong(송승용) ORCID logo https://orcid.org/0000-0002-3145-7463
Lee, Kwang Hoon(이광훈)
Lee, Dong Won(이동원) ORCID logo https://orcid.org/0000-0003-0046-3139
Hyun, Young-Min(현영민) ORCID logo https://orcid.org/0000-0002-0567-2039
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/184345
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