{"title":"痛觉感受器衍生的CGRP增强皮肤I型常规树突状细胞功能,驱动白癜风患者自身反应性CD8+ T细胞反应","authors":"Xiuli Yang, Wenxiang Ding, Fangzhou Lou, Hao Xu, Anqi Sheng, Yang Sun, Xiaojie Cai, Miaoni Zhou, Fuquan Lin, Rong Jin, Xichen Zheng, Zhikai Wang, Siyu Deng, Zhenyao Xu, Taiyu Zhang, Jinke Cheng, Xingdong Zheng, Aie Xu, Honglin Wang","doi":"10.1016/j.immuni.2025.05.018","DOIUrl":null,"url":null,"abstract":"Vitiligo is an autoimmune disease characterized by depigmented patches of skin. Autoreactive CD8<sup>+</sup> T cells kill melanocytes in vitiligo, but the immunopathogenesis remains elusive and ideal drug targets are lacking. Through single-cell and spatial transcriptomic analysis of vitiligo lesional skin, we found that conventional type 1 dendritic cells (cDC1s) primed CD8<sup>+</sup> T cells and highly expressed the neuropeptide calcitonin gene-related peptide (CGRP) receptor. Deletion of Na<sub>v</sub>1.8<sup>+</sup> nociceptors, cDC1-specific ablation of the CGRP receptor, or treatment with a CGRP receptor antagonist (rimegepant) abrogated CD8<sup>+</sup> T cell autoreactivity and prevented skin depigmentation in a mouse model of vitiligo. Conversely, CGRP administration restored vitiligo development in nociceptor-ablated mice. In a pilot study, topical application of rimegepant ointment alleviated skin depigmentation in individuals with vitiligo. Taken together, our results reveal that nociceptor-derived CGRP promotes cDC1-CD8<sup>+</sup> T cell interactions and highlight CGRP receptor antagonism as a potential therapeutic strategy for treating vitiligo.","PeriodicalId":13269,"journal":{"name":"Immunity","volume":"44 1","pages":""},"PeriodicalIF":25.5000,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Nociceptor-derived CGRP enhances dermal type I conventional dendritic cell function to drive autoreactive CD8+ T cell responses in vitiligo\",\"authors\":\"Xiuli Yang, Wenxiang Ding, Fangzhou Lou, Hao Xu, Anqi Sheng, Yang Sun, Xiaojie Cai, Miaoni Zhou, Fuquan Lin, Rong Jin, Xichen Zheng, Zhikai Wang, Siyu Deng, Zhenyao Xu, Taiyu Zhang, Jinke Cheng, Xingdong Zheng, Aie Xu, Honglin Wang\",\"doi\":\"10.1016/j.immuni.2025.05.018\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Vitiligo is an autoimmune disease characterized by depigmented patches of skin. Autoreactive CD8<sup>+</sup> T cells kill melanocytes in vitiligo, but the immunopathogenesis remains elusive and ideal drug targets are lacking. Through single-cell and spatial transcriptomic analysis of vitiligo lesional skin, we found that conventional type 1 dendritic cells (cDC1s) primed CD8<sup>+</sup> T cells and highly expressed the neuropeptide calcitonin gene-related peptide (CGRP) receptor. Deletion of Na<sub>v</sub>1.8<sup>+</sup> nociceptors, cDC1-specific ablation of the CGRP receptor, or treatment with a CGRP receptor antagonist (rimegepant) abrogated CD8<sup>+</sup> T cell autoreactivity and prevented skin depigmentation in a mouse model of vitiligo. Conversely, CGRP administration restored vitiligo development in nociceptor-ablated mice. In a pilot study, topical application of rimegepant ointment alleviated skin depigmentation in individuals with vitiligo. Taken together, our results reveal that nociceptor-derived CGRP promotes cDC1-CD8<sup>+</sup> T cell interactions and highlight CGRP receptor antagonism as a potential therapeutic strategy for treating vitiligo.\",\"PeriodicalId\":13269,\"journal\":{\"name\":\"Immunity\",\"volume\":\"44 1\",\"pages\":\"\"},\"PeriodicalIF\":25.5000,\"publicationDate\":\"2025-06-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Immunity\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.1016/j.immuni.2025.05.018\",\"RegionNum\":1,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"IMMUNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Immunity","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1016/j.immuni.2025.05.018","RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"IMMUNOLOGY","Score":null,"Total":0}
Nociceptor-derived CGRP enhances dermal type I conventional dendritic cell function to drive autoreactive CD8+ T cell responses in vitiligo
Vitiligo is an autoimmune disease characterized by depigmented patches of skin. Autoreactive CD8+ T cells kill melanocytes in vitiligo, but the immunopathogenesis remains elusive and ideal drug targets are lacking. Through single-cell and spatial transcriptomic analysis of vitiligo lesional skin, we found that conventional type 1 dendritic cells (cDC1s) primed CD8+ T cells and highly expressed the neuropeptide calcitonin gene-related peptide (CGRP) receptor. Deletion of Nav1.8+ nociceptors, cDC1-specific ablation of the CGRP receptor, or treatment with a CGRP receptor antagonist (rimegepant) abrogated CD8+ T cell autoreactivity and prevented skin depigmentation in a mouse model of vitiligo. Conversely, CGRP administration restored vitiligo development in nociceptor-ablated mice. In a pilot study, topical application of rimegepant ointment alleviated skin depigmentation in individuals with vitiligo. Taken together, our results reveal that nociceptor-derived CGRP promotes cDC1-CD8+ T cell interactions and highlight CGRP receptor antagonism as a potential therapeutic strategy for treating vitiligo.
期刊介绍:
Immunity is a publication that focuses on publishing significant advancements in research related to immunology. We encourage the submission of studies that offer groundbreaking immunological discoveries, whether at the molecular, cellular, or whole organism level. Topics of interest encompass a wide range, such as cancer, infectious diseases, neuroimmunology, autoimmune diseases, allergies, mucosal immunity, metabolic diseases, and homeostasis.