Irene Rivera-Ruiz, Jesús Gay-Mimbrera, Pedro J Gómez-Arias, Macarena Aguilar-Luque, Miguel Juan-Cencerrado, Carmen Mochón-Jiménez, Esmeralda Parra-Peralbo, Beatriz Isla-Tejera, Francisco Gómez-García, Juan Ruano
{"title":"基因表达的荟萃分析揭示了斑秃病变头皮的核心转录组学特征。","authors":"Irene Rivera-Ruiz, Jesús Gay-Mimbrera, Pedro J Gómez-Arias, Macarena Aguilar-Luque, Miguel Juan-Cencerrado, Carmen Mochón-Jiménez, Esmeralda Parra-Peralbo, Beatriz Isla-Tejera, Francisco Gómez-García, Juan Ruano","doi":"10.1007/s13555-025-01471-6","DOIUrl":null,"url":null,"abstract":"<p><strong>Introduction: </strong>Alopecia areata (AA) is an immune-mediated inflammatory skin disease that targets hair follicles. Current research yields varied lists of differentially expressed genes (DEGs). A meta-analytic approach is essential to consolidate these findings into a consistent tissue signature. This study aimed to perform a meta-analysis of gene expression datasets to establish a comprehensive molecular signature of AA lesional scalp.</p><p><strong>Methods: </strong>We conducted a meta-analysis of transcriptomic data from human studies on lesional skin gene expression in AA. Reanalyzing 132 samples (82 patients with AA and 50 controls) from five Gene Expression Omnibus (GEO) datasets (GSE68801, GSE45512, GSE80342, GSE58573, GSE74761), we employed an effect size approach within a random-effects model to identify unique and shared DEGs and enriched biological pathways. The protocol is registered in PROSPERO (CRD42024559847).</p><p><strong>Results: </strong>The meta-analysis identified 5109 DEGs, with 2710 upregulated and 2399 downregulated genes, significantly more than the 120 DEGs shared across the five studies. Consistently expressed genes included CXCL9, CCL18, CXCL10, CD8A, and GZMB (FDR < 0.05). The analysis highlighted chemokines/receptors (CCL13, CCR1, XCL1) and markers of cytotoxic T lymphocytes (GZMA, GZMH, GZMK) and NK cells (NKG2A, NKG2D). Downregulated genes involved type I (KRT31-35, KRT38) and type II (KRT81-86) keratins and proteins crucial for hair follicle structure and function (PADI3, GPRC5D, DSG4, FGF18). Functional analysis showed enrichment in Th1, Th2, and Th17 pathways, particularly through JAK-STAT signaling (p < 0.01).</p><p><strong>Conclusion: </strong>This core transcriptome of AA lesions provides new insights into the disease's pathogenesis and identifies potential targets for treatment.</p>","PeriodicalId":11186,"journal":{"name":"Dermatology and Therapy","volume":" ","pages":"2729-2748"},"PeriodicalIF":4.2000,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12454715/pdf/","citationCount":"0","resultStr":"{\"title\":\"Meta-Analysis of Gene Expression Reveals the Core Transcriptomic Profile of Lesional Scalp in Alopecia Areata.\",\"authors\":\"Irene Rivera-Ruiz, Jesús Gay-Mimbrera, Pedro J Gómez-Arias, Macarena Aguilar-Luque, Miguel Juan-Cencerrado, Carmen Mochón-Jiménez, Esmeralda Parra-Peralbo, Beatriz Isla-Tejera, Francisco Gómez-García, Juan Ruano\",\"doi\":\"10.1007/s13555-025-01471-6\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Introduction: </strong>Alopecia areata (AA) is an immune-mediated inflammatory skin disease that targets hair follicles. Current research yields varied lists of differentially expressed genes (DEGs). A meta-analytic approach is essential to consolidate these findings into a consistent tissue signature. This study aimed to perform a meta-analysis of gene expression datasets to establish a comprehensive molecular signature of AA lesional scalp.</p><p><strong>Methods: </strong>We conducted a meta-analysis of transcriptomic data from human studies on lesional skin gene expression in AA. Reanalyzing 132 samples (82 patients with AA and 50 controls) from five Gene Expression Omnibus (GEO) datasets (GSE68801, GSE45512, GSE80342, GSE58573, GSE74761), we employed an effect size approach within a random-effects model to identify unique and shared DEGs and enriched biological pathways. The protocol is registered in PROSPERO (CRD42024559847).</p><p><strong>Results: </strong>The meta-analysis identified 5109 DEGs, with 2710 upregulated and 2399 downregulated genes, significantly more than the 120 DEGs shared across the five studies. Consistently expressed genes included CXCL9, CCL18, CXCL10, CD8A, and GZMB (FDR < 0.05). The analysis highlighted chemokines/receptors (CCL13, CCR1, XCL1) and markers of cytotoxic T lymphocytes (GZMA, GZMH, GZMK) and NK cells (NKG2A, NKG2D). Downregulated genes involved type I (KRT31-35, KRT38) and type II (KRT81-86) keratins and proteins crucial for hair follicle structure and function (PADI3, GPRC5D, DSG4, FGF18). Functional analysis showed enrichment in Th1, Th2, and Th17 pathways, particularly through JAK-STAT signaling (p < 0.01).</p><p><strong>Conclusion: </strong>This core transcriptome of AA lesions provides new insights into the disease's pathogenesis and identifies potential targets for treatment.</p>\",\"PeriodicalId\":11186,\"journal\":{\"name\":\"Dermatology and Therapy\",\"volume\":\" \",\"pages\":\"2729-2748\"},\"PeriodicalIF\":4.2000,\"publicationDate\":\"2025-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12454715/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Dermatology and Therapy\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.1007/s13555-025-01471-6\",\"RegionNum\":3,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2025/8/1 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q1\",\"JCRName\":\"DERMATOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Dermatology and Therapy","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1007/s13555-025-01471-6","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/8/1 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"DERMATOLOGY","Score":null,"Total":0}
Meta-Analysis of Gene Expression Reveals the Core Transcriptomic Profile of Lesional Scalp in Alopecia Areata.
Introduction: Alopecia areata (AA) is an immune-mediated inflammatory skin disease that targets hair follicles. Current research yields varied lists of differentially expressed genes (DEGs). A meta-analytic approach is essential to consolidate these findings into a consistent tissue signature. This study aimed to perform a meta-analysis of gene expression datasets to establish a comprehensive molecular signature of AA lesional scalp.
Methods: We conducted a meta-analysis of transcriptomic data from human studies on lesional skin gene expression in AA. Reanalyzing 132 samples (82 patients with AA and 50 controls) from five Gene Expression Omnibus (GEO) datasets (GSE68801, GSE45512, GSE80342, GSE58573, GSE74761), we employed an effect size approach within a random-effects model to identify unique and shared DEGs and enriched biological pathways. The protocol is registered in PROSPERO (CRD42024559847).
Results: The meta-analysis identified 5109 DEGs, with 2710 upregulated and 2399 downregulated genes, significantly more than the 120 DEGs shared across the five studies. Consistently expressed genes included CXCL9, CCL18, CXCL10, CD8A, and GZMB (FDR < 0.05). The analysis highlighted chemokines/receptors (CCL13, CCR1, XCL1) and markers of cytotoxic T lymphocytes (GZMA, GZMH, GZMK) and NK cells (NKG2A, NKG2D). Downregulated genes involved type I (KRT31-35, KRT38) and type II (KRT81-86) keratins and proteins crucial for hair follicle structure and function (PADI3, GPRC5D, DSG4, FGF18). Functional analysis showed enrichment in Th1, Th2, and Th17 pathways, particularly through JAK-STAT signaling (p < 0.01).
Conclusion: This core transcriptome of AA lesions provides new insights into the disease's pathogenesis and identifies potential targets for treatment.
期刊介绍：
Dermatology and Therapy is an international, open access, peer-reviewed, rapid publication journal (peer review in 2 weeks, published 3–4 weeks from acceptance). The journal is dedicated to the publication of high-quality clinical (all phases), observational, real-world, and health outcomes research around the discovery, development, and use of dermatological therapies. Studies relating to diagnosis, pharmacoeconomics, public health and epidemiology, quality of life, and patient care, management, and education are also encouraged.
Areas of focus include, but are not limited to all clinical aspects of dermatology, such as skin pharmacology; skin development and aging; prevention, diagnosis, and management of skin disorders and melanomas; research into dermal structures and pathology; and all areas of aesthetic dermatology, including skin maintenance, dermatological surgery, and lasers.
The journal is of interest to a broad audience of pharmaceutical and healthcare professionals and publishes original research, reviews, case reports/case series, trial protocols, and short communications. Dermatology and Therapy will consider all scientifically sound research be it positive, confirmatory or negative data. Submissions are welcomed whether they relate to an International and/or a country-specific audience, something that is crucially important when researchers are trying to target more specific patient populations. This inclusive approach allows the journal to assist in the dissemination of quality research, which may be considered of insufficient interest by other journals. The journal appeals to a global audience and receives submissions from all over the world.
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