Journal of dermatological science最新文献

{"title":"Unveiling intratumoral heterogeneity in high-risk cutaneous squamous cell carcinoma using single-cell spatial enhanced resolution omics-sequencing (Stereo-seq).","authors":"Jesse Veenstra, Ian Loveless, Peter Dimitrion, Indra Adrianto, David Ozog, Qing-Sheng Mi","doi":"10.1016/j.jdermsci.2024.11.001","DOIUrl":"https://doi.org/10.1016/j.jdermsci.2024.11.001","url":null,"abstract":"","PeriodicalId":94076,"journal":{"name":"Journal of dermatological science","volume":" ","pages":""},"PeriodicalIF":4.6,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142792684","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":"The decrease in peripheral blood basophils in a mouse model of IgE-induced inflammation involves their migration to lymph nodes","authors":"Ni Ma ,&nbsp;Izumi Kishimoto ,&nbsp;Aki Tajima ,&nbsp;Noriko Kume ,&nbsp;Naotomo Kambe ,&nbsp;Hideaki Tanizaki","doi":"10.1016/j.jdermsci.2024.09.004","DOIUrl":"10.1016/j.jdermsci.2024.09.004","url":null,"abstract":"<div><h3>Background</h3><div>During the active phase of urticaria, a decrease in peripheral blood basophils, known as basopenia, is observed. We previously reported that basopenia occurs as a result of basophils migrating to the skin in a contact dermatitis model where a Th2 response is induced with oxazolone.</div></div><div><h3>Objective</h3><div>Although there is currently no established model for urticaria, given that urticaria is an IgE-mediated immediate-type allergic reaction, we aimed to determine whether an IgE-mediated model could reproduce the decrease in basophils in peripheral blood observed during the active phase of urticaria.</div></div><div><h3>Methods</h3><div>Mice were pretreated with 2,4,6-trinitrophenylhaptene (TNP)-specific IgE and basophil dynamics were examined following stimulation with TNP-ovalbumin. Mast cell-deficient WBB6F1-<em>Kit</em>^<em>W</em><em>/Kit</em>^<em>W-v</em> mice were used to investigate the role of mast cells in this IgE-mediated model.</div></div><div><h3>Results</h3><div>Following stimulation, we observed immediate ear swelling and basopenia after 0.5 hours. However, the number of basophils observed in the skin lesions was low, while a higher number of basophils were observed in the antigen-draining lymph nodes (LN). In mast cell-deficient mice, no increase in basophils in the LN was observed, reflecting reduced antigen influx into the LN, but basophils remained in the skin.</div></div><div><h3>Conclusions</h3><div>In the IgE-mediated mouse model, basopenia was observed, which coincided with the induction of inflammation in the skin. The migration of basophils to the LN in this model suggests that the systemic immune system, including the LN, should be considered when exploring the pathogenesis of urticaria in humans.</div></div>","PeriodicalId":94076,"journal":{"name":"Journal of dermatological science","volume":"116 2","pages":"Pages 61-69"},"PeriodicalIF":4.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142376422","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":"Downregulation of carnitine acetyltransferase by promoter hypermethylation regulates ultraviolet-induced matrix metalloproteinase-1 expression in human dermal fibroblasts","authors":"Min Ji Song ,&nbsp;Min-Kyoung Kim ,&nbsp;Chi-Hyun Park ,&nbsp;Haesoo Kim ,&nbsp;Si Hyung Lee ,&nbsp;Dong Hun Lee ,&nbsp;Jin Ho Chung","doi":"10.1016/j.jdermsci.2024.09.005","DOIUrl":"10.1016/j.jdermsci.2024.09.005","url":null,"abstract":"<div><h3>Background</h3><div>Overexposure to ultraviolet (UV) radiation accelerates skin aging, resulting in wrinkle formation, reduced skin elasticity, and hyperpigmentation. UV irradiation induces increased matrix metalloproteinases (MMPs) that degrade collagen in the extracellular matrix. Skin aging is also accompanied by epigenetic alterations such as promoter methylation by DNA methyltransferases, leading to the activation or suppression of gene expression. Although carnitine acetyltransferase (CRAT) is implicated in aging, the effect of UV on the expression of CRAT and regulatory mechanisms of UV-induced MMP-1 expression remain unknown.</div></div><div><h3>Objective</h3><div>We investigated changes in CRAT expression upon UV irradiation and its effect on MMP-1 expression.</div></div><div><h3>Methods</h3><div>Primary human dermal fibroblasts were UV irradiated with either control or 5-AZA-dC. CRAT knockdown or overexpression was performed to investigate its effect on MMP-1 expression. The mRNA level was analyzed by quantitative real-time PCR, and protein level by western blotting.</div></div><div><h3>Results</h3><div>The expression of CRAT was decreased in UV-irradiated human skin <em>in vivo</em> and in human dermal fibroblasts <em>in vitro</em>. CRAT was downregulated upon UV irradiation by hypermethylation, and treatment with 5-Aza-2′-deoxycytidine, a DNA methyltransferase inhibitor, reversed UV-induced downregulation of CRAT. CRAT knockdown activated the JNK, ERK, and p38 MAPK signaling pathways, which increased MMP-1 expression. Stable overexpression of CRAT alleviated UV-induced MMP-1 induction.</div></div><div><h3>Conclusion</h3><div>CRAT downregulation caused by promoter hypermethylation may play an important role in UV-induced skin aging via upregulation of MMP-1 expression.</div></div>","PeriodicalId":94076,"journal":{"name":"Journal of dermatological science","volume":"116 2","pages":"Pages 70-77"},"PeriodicalIF":4.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142515371","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":"Type 2 cytokine-JAK1 signaling is involved in the development of dry skin-induced mechanical alloknesis.","authors":"Yui Toyosawa, Eriko Komiya, Takahide Kaneko, Yasushi Suga, Mitsutoshi Tominaga, Kenji Takamori","doi":"10.1016/j.jdermsci.2024.10.002","DOIUrl":"https://doi.org/10.1016/j.jdermsci.2024.10.002","url":null,"abstract":"<p><strong>Background: </strong>Mechanical alloknesis (m-alloknesis) is itch hypersensitivity induced by normally innocuous stimuli. It is sometimes observed in dry skin based itch-related diseases such as atopic dermatitis (AD), and often triggers the vicious itch-scratch cycle. The acetone-ether and water (AEW) mouse model mimics dry skin-induced m-alloknesis, yet its underlying mechanism remains unclear. Janus kinase (JAK) inhibitors are used to treat AD, but their effects on m-alloknesis are not fully known.</p><p><strong>Objective: </strong>To reveal the effects of various oral JAK inhibitors on m-alloknesis and their action points, using AEW model.</p><p><strong>Methods: </strong>AEW model was prepared by treatment with a mixture of acetone-ether, and they were orally administrated a JAK1/2 inhibitor baricitinib, a selective JAK1 inhibitor abrocitinib, or a JAK2 selective inhibitor AZ960, and evaluated m-alloknesis score as the total number of scratching responses in 30 mechanical stimulations. To further elucidate the mechanism of action, IL-4, IL-13 or thymic stromal lymphopoietin (TSLP) or their neutralizing antibodies were also applied to mice. In addition, the levels of these cytokines in mouse skin were measured using multiple immunoassays.</p><p><strong>Results: </strong>All of JAK inhibitors effectively reduced m-alloknesis, with abrocitinib demonstrating the most significant inhibition. The neutralizing antibodies against IL-4, IL-13, and TSLP inhibited m-alloknesis in AEW mice. Intradermal administration of IL-4, IL-13, or TSLP induced m-alloknesis, and abrocitinib effectively mitigated each cytokine-induced response. Highly sensitive assays detected IL-4, IL-13, IL-31 and TSLP in AEW-treated skin, with TSLP levels significantly increased.</p><p><strong>Conclusion: </strong>Type 2 cytokine-JAK1 signaling is involved in the development of m-alloknesis in dry skin.</p>","PeriodicalId":94076,"journal":{"name":"Journal of dermatological science","volume":" ","pages":""},"PeriodicalIF":4.6,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142775917","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":"Staphylococcus epidermidis augments human β-defensin-3 synthesis through the transforming growth factor alpha-epidermal growth factor receptor cascade","authors":"Rie Ommori,&nbsp;Satoru Shinkuma,&nbsp;Hideo Asada","doi":"10.1016/j.jdermsci.2024.08.003","DOIUrl":"10.1016/j.jdermsci.2024.08.003","url":null,"abstract":"<div><h3>Background</h3><div>Epidermal growth factor receptor inhibitors (EGFRIs) reduce β-defensin 3 (BD3) from keratinocytes stimulated by <em>S. epidermidis</em>, potentially leading to the development of acneiform rashes in patients undergoing EGFRIs treatment. However, the mechanism through which <em>S. epidermidis</em> induces BD3 via EGFR remains incompletely understood.</div></div><div><h3>Objective</h3><div>To elucidate the BD3 production pathway triggered by <em>S. epidermidis</em>.</div></div><div><h3>Methods</h3><div>To assess the impact of <em>S. epidermidis</em> on EGFR ligand expression, the levels of released EGFR ligands in the keratinocyte culture medium following <em>S. epidermidis</em> stimulation were quantified using ELISA. Subsequently, to confirm the synergistic effect of TGF-α and <em>S. epidermidis</em>, we administered <em>S. epidermidis</em> and TGF-α to the keratinocyte culture medium and measured the expression levels of BD3. In addition, we stimulated Toll-like receptor 2 (TLR2)-knockdown keratinocytes with <em>S. epidermidis</em> and measured the expression levels of TGF-α.</div></div><div><h3>Results</h3><div>While <em>S. epidermidis</em> did not induce EGF and HB-EGF, they increased TGF-α. The expression of BD3 was higher in keratinocytes stimulated by <em>S. epidermidis</em> in the presence of TGF-α, as compared to its absence. Moreover, both <em>S. epidermidis</em>- and TGF-α-induced BD3 were significantly suppressed by cetuximab. The expression levels of TGF-α induced by <em>S. epidermidis</em> were reduced in TLR2-knockdown keratinocytes</div></div><div><h3>Conclusion</h3><div>Our findings suggest that <em>S. epidermidis</em> induces the expression of TGF-α in keratinocytes through TLR2, which, in cooperation with TGF-α, stimulates the production of BD3.</div></div>","PeriodicalId":94076,"journal":{"name":"Journal of dermatological science","volume":"116 1","pages":"Pages 34-40"},"PeriodicalIF":4.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142304944","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":"Dermal fibroblasts retain site-specific transcriptomic identity in keloids","authors":"Pingping Lin ,&nbsp;Daoning Zhang ,&nbsp;Jie Tian ,&nbsp;Binbin Lai ,&nbsp;Yu Yang ,&nbsp;Yicen Yan ,&nbsp;Shenxi Zhang ,&nbsp;Guohong Zhang ,&nbsp;Hang Li","doi":"10.1016/j.jdermsci.2024.08.002","DOIUrl":"10.1016/j.jdermsci.2024.08.002","url":null,"abstract":"<div><h3>Background</h3><div>Human skin displays extensive spatial heterogeneity and maintains distinct positional identity. However, the impact of disease processes on these site-specific differences remains poorly understood, especially in keloid, a skin disorder characterized by pronounced spatial heterogeneity.</div></div><div><h3>Objective</h3><div>This study aimed to assess whether the spatial heterogeneity and positional identity observed in different anatomic sites persist in keloids.</div></div><div><h3>Methods</h3><div>Transcriptome sequencing was conducted on 139 keloid dermal tissues and 19 keloid fibroblast samples spanning seven distinct anatomic sites to identify the spatial transcriptomic heterogeneity. In addition, single-cell RNA sequencing data were utilized to elucidate the contributions of various cell types to the maintenance of positional identity.</div></div><div><h3>Results</h3><div>Keloid dermal tissues from diverse sites were categorized into three anatomic groupings: trunk and extremity, ear, and mandible regions. Enrichment analysis of differentially expressed genes unveiled that keloids across distinct regions retained unique anatomically-related gene expression profiles, reminiscent of those observed in normal skin. Notably, regional disparities consistently prevailed and surpassed inter-donor variations. Single-cell RNA sequencing further revealed that mesenchymal cells, particularly fibroblasts, made major contributions to positional identity in keloids. Moreover, gene expression profiles in primary keloid fibroblasts demonstrated a remarkable persistence of positional identity, enduring even after prolonged in vitro propagation.</div></div><div><h3>Conclusion</h3><div>Taken together, these findings imply that keloids remain positional identity and developmental imprinting characteristic of normal skin. Fibroblasts predominantly contribute to the spatial heterogeneity observed in keloids.</div></div>","PeriodicalId":94076,"journal":{"name":"Journal of dermatological science","volume":"116 1","pages":"Pages 41-49"},"PeriodicalIF":4.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142335259","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":"Dysbiosis-activated IL-17-producing T cells promote skin immunopathological progression in mice deficient of the Notch ligand Jag1 in keratinocytes","authors":"Eun Hyeon Song ,&nbsp;Juan Garcia Jr. ,&nbsp;Na Xiong","doi":"10.1016/j.jdermsci.2024.09.001","DOIUrl":"10.1016/j.jdermsci.2024.09.001","url":null,"abstract":"<div><h3>Background</h3><div>The Notch signaling pathway is an evolutionarily conserved regulatory cascade critical in skin development and homeostasis. Mice deficient of Notch signaling molecules have impaired skin and hair follicle development associated with local tissue inflammation. However, mechanisms underlying skin inflammation and pathology resulting from defective Notch signals are not well understood.</div></div><div><h3>Objective</h3><div>To dissect molecular and cellular mechanisms underlying development of skin immunopathology in mice defective of the Notch ligand Jagged-1 (Jag1).</div></div><div><h3>Methods</h3><div>We assessed involvement of microbiota and immune cell subsets in skin pathogenic symptoms in Foxn1^CreJag1^fl/fl mice that were deficient of Jag1 in keratinocytes. We also used RNA-seq and 16S rRNA gene-seq analyses to identify molecular factors and bacterial species contributing to skin pathologic symptoms in Foxn1^CreJag1^fl/fl mice.</div></div><div><h3>Results</h3><div>Compared to Jag1-sufficient littermate control mice, Foxn1^CreJag1^fl/fl mice had specific expansion of IL-17a-producing T cells accompanying follicular and epidermal hyperkeratosis and cyst formation while antibody blockage of IL-17a reduced the skin pathology. RNA-sequencing and 16S rRNA gene-sequencing analyses revealed dysregulated immune responses and altered microbiota compositions in the skin of Foxn1^CreJag1^fl/fl mice. Antibiotic treatment completely prevented over-activation of IL-17a-producing T cells and alleviated skin pathology in Foxn1^CreJag1^fl/fl mice.</div></div><div><h3>Conclusion</h3><div>Dysbiosis-induced over-activation of IL-17a-producing T cells is critically involved in development of skin pathology in Foxn1^CreJag1^fl/fl mice, establishing Foxn1^CreJag1^fl/fl mice as a useful model to study pathogenesis and therapeutic targets in microbiota-IL-17-mediated skin inflammatory diseases such as hidradenitis suppurativa (HS) and psoriasis.</div></div>","PeriodicalId":94076,"journal":{"name":"Journal of dermatological science","volume":"116 1","pages":"Pages 14-23"},"PeriodicalIF":4.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142304942","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":"Possible facilitating role of IL-17A on IL-23 production in keratinocytes in psoriatic lesions","authors":"Akimasa Adachi ,&nbsp;Tetsuya Honda ,&nbsp;Nobuhiro Kusuba ,&nbsp;Fuuka Minami ,&nbsp;Satoshi Nakamizo ,&nbsp;Kenji Kabashima","doi":"10.1016/j.jdermsci.2024.09.002","DOIUrl":"10.1016/j.jdermsci.2024.09.002","url":null,"abstract":"","PeriodicalId":94076,"journal":{"name":"Journal of dermatological science","volume":"116 1","pages":"Pages 50-54"},"PeriodicalIF":4.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142335260","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":"Serum inflammatory biomarkers associated with disease severity and response to dupilumab treatment in bullous pemphigoid: A cluster analysis","authors":"Jiaqi Li ,&nbsp;Xixue Chen ,&nbsp;Xuejun Zhu ,&nbsp;Panpan Shang ,&nbsp;Mingyue Wang","doi":"10.1016/j.jdermsci.2024.09.003","DOIUrl":"10.1016/j.jdermsci.2024.09.003","url":null,"abstract":"<div><h3>Background</h3><div>Dupilumab, a novel therapy targeting the T helper (Th) 2-mediated inflammation, is showing clinical benefits in treating bullous pemphigoid (BP). However, limited research investigated the serum biomarkers that reflect the inflammation alterations throughout the disease course.</div></div><div><h3>Objectives</h3><div>To explore the changes of the serum inflammatory biomarkers under dupilumab therapy in BP and establish their correlations with disease severity and clinical outcomes.</div></div><div><h3>Methods</h3><div>This exploratory study evaluated serum samples from 40 patients with BP at baseline, 30 of these patients following 16-week dupilumab therapy, and 20 senior healthy controls. Serum levels of 29 cytokines and chemokines were quantified using the Magnetic Luminex Assay.</div></div><div><h3>Results</h3><div>Two distinct clusters based on serum inflammatory profiles were identified. The first cluster, characterized by elevated levels of inflammatory activation, exhibited worse disease severity and poorer remission outcomes. Following the 16-week dupilumab therapy regimen, a significant suppression of Th2-mediated inflammation in the serum was observed, alongside a relative upregulation of Th1 responses. Patients treated with adjuvant systemic steroids exhibited an enhanced suppression of B cell activating factor compared to those receiving dupilumab alone. Significant correlations were unveiled between Th2 biomarkers and clinical scores, eosinophil counts, and anti-BP180 immunoglobulin G levels. Baseline levels of CCL18, Periostin, interleukin (IL)-6, and IL-16 constitute an optimal combination to distinguish between inflammatory clusters.</div></div><div><h3>Conclusions</h3><div>Cluster analysis of serum inflammatory biomarkers provided novel insights into the heterogeneity of the inflammation profiles in BP. Baseline levels of CCL18, Periostin, IL-6, IL-16 emerged as effective predictors for disease severity and therapy response to dupilumab.</div></div>","PeriodicalId":94076,"journal":{"name":"Journal of dermatological science","volume":"116 1","pages":"Pages 24-33"},"PeriodicalIF":4.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142368049","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":"Recombinant human thioredoxin ameliorates imiquimod-induced psoriasis-like dermatitis in mice","authors":"Alshimaa Mostafa ,&nbsp;Kenji Sakurai ,&nbsp;Teruasa Murata ,&nbsp;Teruki Dainichi ,&nbsp;Hai Tian ,&nbsp;Junji Yodoi ,&nbsp;Kenji Kabashima","doi":"10.1016/j.jdermsci.2024.07.002","DOIUrl":"10.1016/j.jdermsci.2024.07.002","url":null,"abstract":"","PeriodicalId":94076,"journal":{"name":"Journal of dermatological science","volume":"116 1","pages":"Pages 55-58"},"PeriodicalIF":4.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141704647","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}