Moira Shea, Alec Furst, Rama Abu Zanet, Iksha Kumar, Khoa Nguyen, Emile Latour, Alex G Ortega-Loayza
{"title":"Use and Overuse of Diagnostic Imaging in Pyoderma Gangrenosum.","authors":"Moira Shea, Alec Furst, Rama Abu Zanet, Iksha Kumar, Khoa Nguyen, Emile Latour, Alex G Ortega-Loayza","doi":"10.1016/j.jid.2025.08.021","DOIUrl":"10.1016/j.jid.2025.08.021","url":null,"abstract":"","PeriodicalId":94239,"journal":{"name":"The Journal of investigative dermatology","volume":" ","pages":""},"PeriodicalIF":5.7,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144984650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yuhsien Lai, Zhuoyu Jiang, Xiaonan Qiu, Dan Hong, Xiuting Liu, Shenyin Liu, Xuesong Wu, Shumeng Guo, Joshua D Bloomstein, Sam T Hwang, Guozhen Tan, Liangchun Wang, Zhan Zhang, Zhenrui Shi
{"title":"Metformin Treatment Protects Mice from Glucose-Promoted Psoriasiform Dermatitis through Enrichment of Akkermansia muciniphila with Modulation of Bacterial Tryptophan Metabolites.","authors":"Yuhsien Lai, Zhuoyu Jiang, Xiaonan Qiu, Dan Hong, Xiuting Liu, Shenyin Liu, Xuesong Wu, Shumeng Guo, Joshua D Bloomstein, Sam T Hwang, Guozhen Tan, Liangchun Wang, Zhan Zhang, Zhenrui Shi","doi":"10.1016/j.jid.2025.08.017","DOIUrl":"10.1016/j.jid.2025.08.017","url":null,"abstract":"<p><p>Although diet has been regarded as a potential environmental risk factor for psoriasis, the precise contribution of specific dietary components, such as sugar, to its pathogenesis remains uncertain. Metformin, a primary medication for type II diabetes mellitus, has been documented to yield improvements in psoriasis. Earlier research indicates that the antihyperglycemic impact of metformin is associated with changes in gut microbiota. Nonetheless, the role of gut microbiota in the antipsoriatic effects of metformin remains unclear. In this study, we showed that 4 weeks of glucose intake exacerbated psoriasiform dermatitis (PsD) in mice, which resolved with oral metformin treatment. The exacerbation and resolution of PsD were mediated through effects on the gut microbiota. Supplementation with Akkermansia muciniphila, enriched by metformin, or Amuc_1100 improved PsD in glucose-fed mice but not in the control mice. Glucose intake resulted in reduced serum levels of indole-3-acetic acid, a microbial tryptophan metabolite, which were reversed by A muciniphila and Amuc_1100 treatment. Oral administration and intradermal injection of indole-3-acetic acid protected mice from glucose-promoted PsD with suppressed expression of antimicrobial peptides, specifically S100A8, in the epidermis. Collectively, increases of A muciniphila through metformin treatment led to reversal of glucose-promoted PsD in mice, possibly through production of the microbial tryptophan metabolite indole-3-acetic acid.</p>","PeriodicalId":94239,"journal":{"name":"The Journal of investigative dermatology","volume":" ","pages":""},"PeriodicalIF":5.7,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144984533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Pathogenic T Follicular Helper Cells in Bullous Pemphigoid: Lessons from a Murine Model.","authors":"Paul Engeroff","doi":"10.1016/j.jid.2025.07.012","DOIUrl":"https://doi.org/10.1016/j.jid.2025.07.012","url":null,"abstract":"","PeriodicalId":94239,"journal":{"name":"The Journal of investigative dermatology","volume":" ","pages":""},"PeriodicalIF":5.7,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144984642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yuan Zhu, Changjiang Zhao, He Yan, Mingyang Lu, Ruiyu Luo, Zhenxing Wang, Lingling Jia, Zihan Li, Hua Jiang, Yufei Li
{"title":"Multiomics Mendelian Randomization Reveals Causal Oxidative Stress Genes in Androgenetic Alopecia.","authors":"Yuan Zhu, Changjiang Zhao, He Yan, Mingyang Lu, Ruiyu Luo, Zhenxing Wang, Lingling Jia, Zihan Li, Hua Jiang, Yufei Li","doi":"10.1016/j.jid.2025.08.014","DOIUrl":"10.1016/j.jid.2025.08.014","url":null,"abstract":"<p><p>Androgenetic alopecia (AGA) has now become a common disorder, yet treatment options remain relatively limited. Smoking, alcohol consumption, and coffee drinking have become habitual, and it is widely believed that these lifestyle factors contribute to AGA. Similarly, as researchers have reported, oxidative stress-related multiomics genes are reviewed as risk factors for AGA, which have been proven to be related to the lifestyles mentioned earlier. However, current research suggests that the link between these factors and AGA is still unclear. To address this, we performed a series of Mendelian randomization analyses on the lifestyle factors mentioned earlier and oxidative stress-related multiomics genes, identifying 12 expression quantitative trait loci genes and 21 protein quantitative trait loci genes with causal associations. The analysis revealed that the ORs for these 33 loci were greater than 1, indicating a positive association with AGA. On the basis of these findings, we inferred potential therapeutic drugs for AGA. This study explores the pathogenic mechanisms of AGA, confirms the complexity of its risk factors as a polygenic disease, and provides causally associated evidence to guide future research into the mechanisms underlying AGA development. This study provides potential therapeutic targets for the development of new drugs for AGA.</p>","PeriodicalId":94239,"journal":{"name":"The Journal of investigative dermatology","volume":" ","pages":""},"PeriodicalIF":5.7,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144984577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Nephronectin Mediates the Interaction between Hair Follicle Epithelial Progenitors and Dermal Stem Cells and Is Involved in Hair Cycle Progression.","authors":"Weiwen Liu, Noriko Sanzen, Takaya Abe, Hiroshi Kiyonari, Nick Barker, Zhiqi Hu, Hironobu Fujiwara","doi":"10.1016/j.jid.2025.07.031","DOIUrl":"10.1016/j.jid.2025.07.031","url":null,"abstract":"","PeriodicalId":94239,"journal":{"name":"The Journal of investigative dermatology","volume":" ","pages":""},"PeriodicalIF":5.7,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144984523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yingjoy Li, Viviane Liao, Ian R Nykaza, Michael M Ong, Kivanc Kose, Nicholas R Kurtansky, Allan C Halpern, Mackenzie R Wehner, Veronica Rotemberg
{"title":"Photographic Quantification of Actinic Keratoses Using Human- and Artificial Intelligence-Based Assessment: A Pilot Study.","authors":"Yingjoy Li, Viviane Liao, Ian R Nykaza, Michael M Ong, Kivanc Kose, Nicholas R Kurtansky, Allan C Halpern, Mackenzie R Wehner, Veronica Rotemberg","doi":"10.1016/j.jid.2025.08.015","DOIUrl":"10.1016/j.jid.2025.08.015","url":null,"abstract":"","PeriodicalId":94239,"journal":{"name":"The Journal of investigative dermatology","volume":" ","pages":""},"PeriodicalIF":5.7,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144984647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Seth Forman, Lea Kephart, Takayuki Ota, Jeff Pawlikowski, Jingzhi Jiang, Alexa B Kimball
{"title":"A Phase 2, Randomized, Placebo-Controlled Study of Bermekimab in Moderate-to-Severe Hidradenitis Suppurativa.","authors":"Seth Forman, Lea Kephart, Takayuki Ota, Jeff Pawlikowski, Jingzhi Jiang, Alexa B Kimball","doi":"10.1016/j.jid.2025.07.032","DOIUrl":"10.1016/j.jid.2025.07.032","url":null,"abstract":"","PeriodicalId":94239,"journal":{"name":"The Journal of investigative dermatology","volume":" ","pages":""},"PeriodicalIF":5.7,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144984771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yin Li, Wenwan Zhang, Yao Teng, Xia Zhang, Sweelin Chew, Yang Liu, Peng Hua, Tingting Yu, Yuao Yan, Yu Bu, Yidan Sun, Luwen Xu, Qiaoyu Fu, Lifang Lei, Yining Chen, Zhengcheng Liu, Caibing Wang, Peiying Zhu, Yao Yu, Nan Huang, Qingfeng Li, Caiyue Liu, Liang Zhang
{"title":"High-Resolution Spatial Transcriptomics Unveils Spatially Resolved Gene Modules and Fatty Acid Metabolism Dysregulation in Human Skin Aging.","authors":"Yin Li, Wenwan Zhang, Yao Teng, Xia Zhang, Sweelin Chew, Yang Liu, Peng Hua, Tingting Yu, Yuao Yan, Yu Bu, Yidan Sun, Luwen Xu, Qiaoyu Fu, Lifang Lei, Yining Chen, Zhengcheng Liu, Caibing Wang, Peiying Zhu, Yao Yu, Nan Huang, Qingfeng Li, Caiyue Liu, Liang Zhang","doi":"10.1016/j.jid.2025.08.011","DOIUrl":"10.1016/j.jid.2025.08.011","url":null,"abstract":"<p><p>Human skin aging involves intricate micrometer-scale changes in cellular organization. High-resolution spatial transcriptomic analysis is crucial for deciphering the complex interplay of cell types and molecular processes underlying skin aging. In this study, the spatially enhanced-resolution omics-sequencing technique was employed to generate a high-resolution spatial transcriptomic atlas of human eyelid skin, capturing age-related alterations in gene expression. Integrating this atlas with multiplexed FISH, we spatially mapped known cell populations, identified 8 spatial tissue clusters, and uncovered 18 spatially correlated gene modules in human skin. Our analysis revealed that human eyelid skin aging is characterized not only by dermal atrophy and chronic inflammation but also by reduced dermal-epidermal communication, decreased epidermal fatty acid synthesis, potential loss of epidermal cell identity, and diminished c-FOS expression in the epidermis. Functional studies using primary human keratinocytes and a reconstructed full-thickness skin model (T-Skin<sup>TM</sup>) demonstrated that reduced activity of fatty acid synthesis enzymes farnesyl diphosphate synthase and fatty acid synthase promoted epidermal senescence and barrier dysfunction. This spatially resolved transcriptomic analysis provides, to our knowledge, previously unreported insights into the molecular mechanism driving skin aging, offering a potential target for aging intervention strategies.</p>","PeriodicalId":94239,"journal":{"name":"The Journal of investigative dermatology","volume":" ","pages":""},"PeriodicalIF":5.7,"publicationDate":"2025-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144984545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A New Role of Non-Sex Hormone in the Pathogenesis of Female Pattern Hair Loss.","authors":"Tyng-Shiuan Hsieh, Wei-Hung Wang, Sung-Jan Lin","doi":"10.1016/j.jid.2025.06.1595","DOIUrl":"https://doi.org/10.1016/j.jid.2025.06.1595","url":null,"abstract":"","PeriodicalId":94239,"journal":{"name":"The Journal of investigative dermatology","volume":" ","pages":""},"PeriodicalIF":5.7,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144984807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}