Single cell transcriptome profiling reveals pathogenesis of bullous pemphigoid

Abstract Bullous pemphigoid (BP) triggers profound functional changes in both immune and non-immune cells in the skin and circulation, though the underlying mechanisms remain unclear. In this study, we conduct single-cell transcriptome analysis of lesional and non-lesional skin, as well as blood sam...

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Main Authors: Guirong Liang, Chenjing Zhao, Qin Wei, Suying Feng, Yetao Wang
Format: Article
Language:English
Published: Nature Portfolio 2025-02-01
Series:Communications Biology
Online Access:https://doi.org/10.1038/s42003-025-07629-4
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author Guirong Liang
Chenjing Zhao
Qin Wei
Suying Feng
Yetao Wang
author_facet Guirong Liang
Chenjing Zhao
Qin Wei
Suying Feng
Yetao Wang
author_sort Guirong Liang
collection DOAJ
description Abstract Bullous pemphigoid (BP) triggers profound functional changes in both immune and non-immune cells in the skin and circulation, though the underlying mechanisms remain unclear. In this study, we conduct single-cell transcriptome analysis of lesional and non-lesional skin, as well as blood samples from BP patients. In lesional skin, non-immune cells upregulate pathways related to metabolism, wound healing, immune activation, and cell migration. LAMP3+DCs from cDC2 show stronger pro-inflammatory signatures than those from cDC1, and VEGFA+ mast cells, crucial for BP progression, are predominantly in lesional skin. As BP patients transition from active to remission stages, blood B cell function shifts from differentiation and memory formation to increased type 1 interferon signaling and reduced IL-4 response. Blood CX3CR1+ ZNF683+ and LAG3+ exhausted T cells exhibit the highest TCR expansion among clones shared with skin CD8+T cells, suggesting their role in fueling skin CD8+T cell clonal expansion. Clinical BP severity correlates positively with blood NK cell IFN-γ production and negatively with amphiregulin (AREG) production. NK cell-derived AREG mitigates IFN-γ-induced keratinocyte apoptosis, suggesting a crucial balance between AREG and IFN-γ in BP progression. These findings highlight functional shifts in BP pathology and suggest potential therapeutic targets.
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spelling doaj-art-a6b681dea1fd4816b7770166f5023b782025-02-09T12:50:50ZengNature PortfolioCommunications Biology2399-36422025-02-018111610.1038/s42003-025-07629-4Single cell transcriptome profiling reveals pathogenesis of bullous pemphigoidGuirong Liang0Chenjing Zhao1Qin Wei2Suying Feng3Yetao Wang4Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical CollegeHospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical CollegeHospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical CollegeHospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical CollegeHospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical CollegeAbstract Bullous pemphigoid (BP) triggers profound functional changes in both immune and non-immune cells in the skin and circulation, though the underlying mechanisms remain unclear. In this study, we conduct single-cell transcriptome analysis of lesional and non-lesional skin, as well as blood samples from BP patients. In lesional skin, non-immune cells upregulate pathways related to metabolism, wound healing, immune activation, and cell migration. LAMP3+DCs from cDC2 show stronger pro-inflammatory signatures than those from cDC1, and VEGFA+ mast cells, crucial for BP progression, are predominantly in lesional skin. As BP patients transition from active to remission stages, blood B cell function shifts from differentiation and memory formation to increased type 1 interferon signaling and reduced IL-4 response. Blood CX3CR1+ ZNF683+ and LAG3+ exhausted T cells exhibit the highest TCR expansion among clones shared with skin CD8+T cells, suggesting their role in fueling skin CD8+T cell clonal expansion. Clinical BP severity correlates positively with blood NK cell IFN-γ production and negatively with amphiregulin (AREG) production. NK cell-derived AREG mitigates IFN-γ-induced keratinocyte apoptosis, suggesting a crucial balance between AREG and IFN-γ in BP progression. These findings highlight functional shifts in BP pathology and suggest potential therapeutic targets.https://doi.org/10.1038/s42003-025-07629-4
spellingShingle Guirong Liang
Chenjing Zhao
Qin Wei
Suying Feng
Yetao Wang
Single cell transcriptome profiling reveals pathogenesis of bullous pemphigoid
Communications Biology
title Single cell transcriptome profiling reveals pathogenesis of bullous pemphigoid
title_full Single cell transcriptome profiling reveals pathogenesis of bullous pemphigoid
title_fullStr Single cell transcriptome profiling reveals pathogenesis of bullous pemphigoid
title_full_unstemmed Single cell transcriptome profiling reveals pathogenesis of bullous pemphigoid
title_short Single cell transcriptome profiling reveals pathogenesis of bullous pemphigoid
title_sort single cell transcriptome profiling reveals pathogenesis of bullous pemphigoid
url https://doi.org/10.1038/s42003-025-07629-4
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AT suyingfeng singlecelltranscriptomeprofilingrevealspathogenesisofbullouspemphigoid
AT yetaowang singlecelltranscriptomeprofilingrevealspathogenesisofbullouspemphigoid