Experimental Dermatology最新文献

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Inhibition of Ubiquitin C-Terminal Hydrolase L1 Facilitates Cutaneous Wound Healing via Activating TGF-β/Smad Signalling Pathway in Fibroblasts 抑制泛素 C 端水解酶 L1 可通过激活成纤维细胞中的 TGF-β/Smad 信号通路促进皮肤伤口愈合
IF 3.5 3区 医学
Experimental Dermatology Pub Date : 2024-10-04 DOI: 10.1111/exd.15186
Huihui Pan, Jinru Song, Qing An, Junyi Chen, Wenyue Zheng, Litian Zhang, Jingjing Gu, Chengcheng Deng, Bin Yang
{"title":"Inhibition of Ubiquitin C-Terminal Hydrolase L1 Facilitates Cutaneous Wound Healing via Activating TGF-β/Smad Signalling Pathway in Fibroblasts","authors":"Huihui Pan,&nbsp;Jinru Song,&nbsp;Qing An,&nbsp;Junyi Chen,&nbsp;Wenyue Zheng,&nbsp;Litian Zhang,&nbsp;Jingjing Gu,&nbsp;Chengcheng Deng,&nbsp;Bin Yang","doi":"10.1111/exd.15186","DOIUrl":"10.1111/exd.15186","url":null,"abstract":"<div>\u0000 \u0000 <p>Ubiquitin C-terminal hydrolase L1 (UCHL1) plays vital roles in cell proliferation, angiogenesis, inflammation and oxidative stress. Nevertheless, it is unclear whether UCHL1 could regulate the biologic behaviour of cells and ultimately influences wound healing. We aim to illustrate the roles and the underlying mechanism of UCHL1 in cutaneous wound healing. Murine full-thickness excisional wound model was utilised to study the effects of UCHL1 on wound healing through topical administration of the UCHL1 inhibitor LDN57444, followed by assessment of wound areas and histological alterations. Subsequently, ethynyldeoxyuridine, scratch and transwell assays were performed to examine fibroblast migration and proliferation. The extracellular matrix (ECM)-related genes expression and transforming growth factor-β (TGF-β)/Smad signalling pathways activation were investigated by immuno-fluorescent staining, Western blots and quantitative reverse transcription polymerase chain reaction. We identified elevated UCHL1 expression in non-healing wound tissues. The UCHL1 expression displayed a dynamic change and reached a peak on Day-7 post-wounding during the healing process in mice. Cutaneous administration of LDN57444 promoted wound healing by facilitating collagen deposition, myofibroblast activation and angiogenesis. In vitro experiments demonstrated that UCHL1 concentration dependently inhibited migration, ECM synthesis and activation of human dermal fibroblasts, which was mechanistically related to downregulation of TGF-β/Smad signalling. Furthermore, these effects could be reversed by TGF-β inhibitor SB431542. Our findings reveal that UCHL1 is a negative regulator of cutaneous wound healing and considered as a novel prospective therapeutic target for effective wound healing.</p>\u0000 </div>","PeriodicalId":12243,"journal":{"name":"Experimental Dermatology","volume":"33 10","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142375365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Lentigo Maligna and Lentigo Maligna Melanoma of the External Ear: Clinical and Dermoscopic Features of 19 Patients 外耳白斑和白斑黑色素瘤:19例患者的临床和皮肤镜特征。
IF 3.5 3区 医学
Experimental Dermatology Pub Date : 2024-10-04 DOI: 10.1111/exd.15188
Emi Dika, Federico Venturi, Giulia Veronesi, Leonardo Veneziano, Biagio Scotti
{"title":"Lentigo Maligna and Lentigo Maligna Melanoma of the External Ear: Clinical and Dermoscopic Features of 19 Patients","authors":"Emi Dika,&nbsp;Federico Venturi,&nbsp;Giulia Veronesi,&nbsp;Leonardo Veneziano,&nbsp;Biagio Scotti","doi":"10.1111/exd.15188","DOIUrl":"10.1111/exd.15188","url":null,"abstract":"<p>External ear lentigo maligna/lentigo melanoma (LM/LMM) represents approximately 1%–4% of all primary cutaneous melanomas. Over the past 20 years, dermoscopy has proven highly effective in early detection of LM/LMM, with recent studies identifying perifollicular linear projections (PLP) as a specific diagnostic criterion for early LM. However, in clinical practice, LM and LMM turn out to be very difficult to distinguish based on dermoscopic findings. Therefore, our retrospective monocentric study aimed to investigate dermoscopic characteristics, as well as the epidemiological and clinical data of 19 patients diagnosed with the external ear (EE) LM/LMM at the Oncologic Dermatology Unit in Bologna. Dermoscopic images were obtained using the FotoFinder Medicam 800HD, and specific criteria validated by the International Dermoscopy Society (IDS) for atypical pigmented facial lesions were assessed. Fisher's exact test was primarily used for statistical comparisons. As results, most of the patients were male (74%) with an average age (± SD) at diagnosis of 69.8 (± 15.1) years old. LMM appeared more commonly observed in elderly patients as compared to LM (mean 71.6 vs. 66.7, <i>p</i> = 0.514), presenting as pigmented macule (89.5%) of the ear lobule (23.9%). A statistically significant difference (<i>p</i> = 0.01) of tumour’ diameter between LMM and LM was reported with the first resulting more than twice the size of the latter. Concerning dermoscopic findings, asymmetric pigmented follicles, obliteration of the follicular openings and grey circles were more frequently observed in LMM compared to LM (63.2% vs. 31.6%; 63.2% vs. 26.3%; 47.4% vs. 15.8%, respectively).</p>","PeriodicalId":12243,"journal":{"name":"Experimental Dermatology","volume":"33 10","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/exd.15188","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142375366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
IL23R mutations associated with decreased risk of psoriasis lead to the differential expression of genes implicated in the disease 与银屑病发病风险降低有关的 IL23R 基因突变会导致与银屑病有关的基因的差异表达
IF 3.5 3区 医学
Experimental Dermatology Pub Date : 2024-09-22 DOI: 10.1111/exd.15180
Shraddha S. Rane, Elan Shellard, Antony Adamson, Steve Eyre, Richard B. Warren
{"title":"IL23R mutations associated with decreased risk of psoriasis lead to the differential expression of genes implicated in the disease","authors":"Shraddha S. Rane,&nbsp;Elan Shellard,&nbsp;Antony Adamson,&nbsp;Steve Eyre,&nbsp;Richard B. Warren","doi":"10.1111/exd.15180","DOIUrl":"https://doi.org/10.1111/exd.15180","url":null,"abstract":"<p>Psoriasis is an incurable immune-mediated skin disease, affecting around 1%–3% of the population. Various lines of evidence implicate IL23 as being pivotal in disease. Genetic variants within the IL23 receptor (IL23R) increase the risk of developing psoriasis, and biologic therapies specifically targeting IL23 demonstrated high efficacy in treating disease. IL23 acts via the IL23R, signalling through the STAT3 pathway, mediating the cascade of events that ultimately results in the clinical presentation of psoriasis. Given the essential role of IL23R in disease, it is important to understand the impact of genetic variants on receptor function with respect to downstream gene regulation. Here we developed model systems in CD4<sup>+</sup> (Jurkat) and CD8<sup>+</sup> (MyLa) T cells to express either the wild type risk or mutant (R381Q) protective form of IL23R. After confirmation that the model system expressed the genes/proteins and had a differential effect on the phosphorylation of STAT3, we used RNAseq to explore differential gene regulation, in particular for genes implicated with risk to psoriasis, at a single time point for both cell types, and in a time course experiment for Jurkat CD4<sup>+</sup> T cells. These experiments discovered differentially regulated genes in the cells expressing wild type and mutant IL23R, including HLA-B, SOCS1, RUNX3, CCR5, CXCR3, CCR9, KLF3, CD28, IRF, SOCS6, TNFAIP and ICAM5, that have been implicated in both the IL23 pathway and psoriasis. These genes have the potential to define a IL23/psoriasis pathway in disease, advancing our understanding of the biology behind the disease.</p>","PeriodicalId":12243,"journal":{"name":"Experimental Dermatology","volume":"33 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/exd.15180","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142276607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Efficacy and safety of ritlecitinib in vitiligo patients across Fitzpatrick skin types with biomarker analyses 利特西替尼对不同菲茨帕特里克皮肤类型白癜风患者的疗效和安全性及生物标记分析
IF 3.5 3区 医学
Experimental Dermatology Pub Date : 2024-09-20 DOI: 10.1111/exd.15177
Elena Peeva, Yuji Yamaguchi, Zhan Ye, Brett King, Mauro Picardo, Abigail Sloan, Khaled Ezzedine, Ester Del Duca, Yeriel Estrada, Mina Hassan-Zahraee, Wen He, Craig Hyde, Johnathan Bar, Paola Facheris, Emma Guttman-Yassky
{"title":"Efficacy and safety of ritlecitinib in vitiligo patients across Fitzpatrick skin types with biomarker analyses","authors":"Elena Peeva,&nbsp;Yuji Yamaguchi,&nbsp;Zhan Ye,&nbsp;Brett King,&nbsp;Mauro Picardo,&nbsp;Abigail Sloan,&nbsp;Khaled Ezzedine,&nbsp;Ester Del Duca,&nbsp;Yeriel Estrada,&nbsp;Mina Hassan-Zahraee,&nbsp;Wen He,&nbsp;Craig Hyde,&nbsp;Johnathan Bar,&nbsp;Paola Facheris,&nbsp;Emma Guttman-Yassky","doi":"10.1111/exd.15177","DOIUrl":"https://doi.org/10.1111/exd.15177","url":null,"abstract":"<p>Efficacy and safety of ritlecitinib (an oral JAK3/TEC family kinase inhibitor) were evaluated in patients with nonsegmental vitiligo (NSV) across Fitzpatrick skin types (FSTs). Patients with FST I-III (‘light skin’; <i>n</i> = 247) and FST IV-VI (‘dark skin’; <i>n</i> = 117) received once-daily ritlecitinib 50 mg (with/without 4-week loading dose), low-dose ritlecitinib or placebo for 24 weeks. At baseline, patients with light skin displayed higher CLM-1 and NCR1 serum levels than patients with dark skin (<i>p</i> &lt; 0.05). At 24 weeks, ritlecitinib 50 mg improved the extent of depigmentation measured by percent change from baseline in facial-vitiligo area scoring index (placebo-adjusted mean difference [90% CI]) in patients with light (−15.2 [−24.7, −5.8]; <i>p</i> = 0.004) and dark (−37.4 [−50.3, −24.4]; <i>p</i> &lt; 0.0001) skin, with continuous re-pigmentation through week 48. Treatment-emergent adverse events were similar across FSTs. At weeks 4 and 24, ritlecitinib 50 mg reduced CXCL11 serum levels (<i>p</i> &lt; 0.001) in patients with light skin, whereas patients with dark skin had increased levels at week 4 (<i>p</i> = 0.05) and no significant change at week 24. Ritlecitinib 50 mg decreased IL-9 and IL-22 expression levels in dark skin compared with light skin (qPCR; <i>p</i> &lt; 0.05). These differences in immune dysregulations may explain why NSV patients with dark skin respond to therapy earlier than patients with light skin.</p>","PeriodicalId":12243,"journal":{"name":"Experimental Dermatology","volume":"33 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142273202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Biodistribution of iron oxide tattoo pigment: An experimental murine study 氧化铁纹身颜料的生物分布:小鼠实验研究
IF 3.5 3区 医学
Experimental Dermatology Pub Date : 2024-09-20 DOI: 10.1111/exd.15183
Kasper Køhler Alsing, Helle Hjorth Johannesen, Rasmus Hvass Hansen, Nina Løth Mårtensson, Daniel Pergament Persson, Klaus Qvortrup, Hans Christian Wulf, Catharina Margrethe Lerche
{"title":"Biodistribution of iron oxide tattoo pigment: An experimental murine study","authors":"Kasper Køhler Alsing,&nbsp;Helle Hjorth Johannesen,&nbsp;Rasmus Hvass Hansen,&nbsp;Nina Løth Mårtensson,&nbsp;Daniel Pergament Persson,&nbsp;Klaus Qvortrup,&nbsp;Hans Christian Wulf,&nbsp;Catharina Margrethe Lerche","doi":"10.1111/exd.15183","DOIUrl":"https://doi.org/10.1111/exd.15183","url":null,"abstract":"<p>Tattoo pigment is expected to migrate beyond the skin to regional lymph nodes and the liver. Modern tattoo ink commonly contains metals that may pose a clinical problem during MRI examinations. This study aimed to investigate the biodistribution of iron oxide pigment to internal organs in mice. Moreover, when exposed to a static magnetic field, we studied whether any reactions followed in the tattooed skin. Twenty-seven hairless C3.Cg-Hrhr/TifBomTac mice were included; 20 were tattooed with iron oxide ink in a rectangular 3 cm<sup>2</sup> pattern; seven were controls. Ten of the tattooed mice were exposed to a 3 T MRI scanner's static magnetic field. Following euthanasia, evaluations of dissected organs involved MRI T2*-mapping, light microscopy (LM) and metal analysis. T2*-mapping measures the relaxation times of hydrogen nuclei in water and fat, which may be affected by neighbouring ferrimagnetic particles, thus enabling the detection of iron oxide particles in organs. Elemental analysis detected a significant level of metals in the tattooed skin compared to controls, but no skin reactions occurred when exposed to a 3 T static magnetic field. No disparity was observed in the liver samples with metal analysis. T2* mapping found no significant difference between the two groups. Only minute clusters of pigment particles were observed in the liver by LM. Our results demonstrate a minimal systemic distribution of the iron oxide pigments to the liver, whereas the kidney and brain were unaffected. The static magnetic field did not trigger skin reactions in magnetic tattoos but may induce image artefacts during MRI.</p>","PeriodicalId":12243,"journal":{"name":"Experimental Dermatology","volume":"33 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142273191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Identification of dietary factors that impact the gut microbiota associated with vitiligo: A Mendelian randomization study and meta-analysis 确定影响与白癜风相关的肠道微生物群的饮食因素:孟德尔随机研究和荟萃分析
IF 3.5 3区 医学
Experimental Dermatology Pub Date : 2024-09-20 DOI: 10.1111/exd.15176
Keyi Zhang, Ling Jiang, Chuhan Fu, Jiangfeng Huang, Yaqing Wen, Shu Zhou, Jinhua Huang, Jing Chen, Qinghai Zeng
{"title":"Identification of dietary factors that impact the gut microbiota associated with vitiligo: A Mendelian randomization study and meta-analysis","authors":"Keyi Zhang,&nbsp;Ling Jiang,&nbsp;Chuhan Fu,&nbsp;Jiangfeng Huang,&nbsp;Yaqing Wen,&nbsp;Shu Zhou,&nbsp;Jinhua Huang,&nbsp;Jing Chen,&nbsp;Qinghai Zeng","doi":"10.1111/exd.15176","DOIUrl":"https://doi.org/10.1111/exd.15176","url":null,"abstract":"<p>Previous observational studies have suggested that gut microbiota might be associated with vitiligo. However, owing to the limitations in observational studies of reverse causality and confounders, it remains unclear that whether and how the causal relationships exist. The results suggested that pylum.Bacteroidetes, family.BacteroidalesS24.7, genus.<i>LachnospiraceaeND3007</i>, genus.<i>Marvinbryantia</i> are protective factors for vitiligo. Conversely, family.Lachnospiraceae, order.Burkholderiales, genus.<i>Adlercreutzia</i>, genus.<i>Catenibacterium</i> and genus.<i>Lachnospira</i> are risk factors for vitiligo. In addition, the causative connection between dietary factors and the gut microbiota associated with vitiligo was also investigated. The results revealed that ‘alcohol intake versus 10 years pervious’ results in a reduction in the abundance of genus.<i>Lachnospiraceae ND3007</i> and family.BacteroidalesS24.7, bread intake leads to a reduction of genus.<i>Marvinbryantia</i>, ‘average weekly red wine intake’ is linked to a decrease in the abundance of order.Burkholderiales, tea intake is associated with an augmentation in the abundance of genus.<i>Catenibacterium</i>, salad/raw vegetable intake elevates the abundance of order.Burkholderiales. In summary, this Mendelian randomization study substantiates potential causal effects of gut microbiota on vitiligo. Modulating the gut microbiota through regulating dietary composition may be a novel strategy for preventing vitiligo.</p>","PeriodicalId":12243,"journal":{"name":"Experimental Dermatology","volume":"33 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142273221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Interleukin-1 family cytokines and soluble receptors in hidradenitis suppurativa 白细胞介素-1 家族细胞因子和化脓性扁桃体炎中的可溶性受体
IF 3.5 3区 医学
Experimental Dermatology Pub Date : 2024-09-15 DOI: 10.1111/exd.15179
Flavia Manzo Margiotta, Gaetana Gambino, Federico Pratesi, Alessandra Michelucci, Francesco Pisani, Leonardo Rossi, Valentina Dini, Marco Romanelli, Paola Migliorini
{"title":"Interleukin-1 family cytokines and soluble receptors in hidradenitis suppurativa","authors":"Flavia Manzo Margiotta,&nbsp;Gaetana Gambino,&nbsp;Federico Pratesi,&nbsp;Alessandra Michelucci,&nbsp;Francesco Pisani,&nbsp;Leonardo Rossi,&nbsp;Valentina Dini,&nbsp;Marco Romanelli,&nbsp;Paola Migliorini","doi":"10.1111/exd.15179","DOIUrl":"https://doi.org/10.1111/exd.15179","url":null,"abstract":"<p>Hidradenitis suppurativa (HS) is a chronic skin disease, characterized by clinical inflammation of the hair follicle with the recurrence of abscesses, nodules, and tunnels. Recently, several studies suggested a role of IL-1 family (IL-1F) cytokines in eliciting and sustaining the disease. The aim of this work is to perform a comprehensive analysis of IL-1F cytokines, soluble inhibitors and receptors in a cohort of HS patients not treated with biological agents. Sixteen patients affected by HS and 16 healthy controls were recruited; clinical data were collected and disease severity evaluated by means of the International HS Severity Score System (IHS4). Serum levels of IL-1F cytokines, inhibitors and receptors were measured using a Multiplex Assays. IL-18 and free IL-18 levels were significantly higher in patients vs controls. Among soluble inhibitors, IL-1Ra, IL-1R2 and ST2/IL-1R4 were significantly increased. IL-18, free IL-18 and IL-33 levels are strongly correlated with IHS4. Also the inhibitors IL-1Ra and IL-18BP show a correlation with IHS4. The data obtained in this study confirm the involvement of IL-1F cytokines in mediating the disease and determining its severity and suggest a possible role for IL-18 as novel serum biomarker of active disease.</p>","PeriodicalId":12243,"journal":{"name":"Experimental Dermatology","volume":"33 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/exd.15179","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142234833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Possibility of maintaining remission with topical therapy alone after withdrawal of dupilumab in Japanese patients with atopic dermatitis and their characteristics in the real world 日本特应性皮炎患者停用杜必鲁单抗后仅使用外用疗法维持缓解的可能性及其在现实世界中的特点
IF 3.5 3区 医学
Experimental Dermatology Pub Date : 2024-09-15 DOI: 10.1111/exd.15175
Ayu Watanabe, Masahiro Kamata, Yoshiki Okada, Shoya Suzuki, Makoto Ito, Hideaki Uchida, Chika Chijiwa, Shota Egawa, Azusa Hiura, Saki Fukaya, Kotaro Hayashi, Atsuko Fukuyasu, Takamitsu Tanaka, Takeko Ishikawa, Yayoi Tada
{"title":"Possibility of maintaining remission with topical therapy alone after withdrawal of dupilumab in Japanese patients with atopic dermatitis and their characteristics in the real world","authors":"Ayu Watanabe,&nbsp;Masahiro Kamata,&nbsp;Yoshiki Okada,&nbsp;Shoya Suzuki,&nbsp;Makoto Ito,&nbsp;Hideaki Uchida,&nbsp;Chika Chijiwa,&nbsp;Shota Egawa,&nbsp;Azusa Hiura,&nbsp;Saki Fukaya,&nbsp;Kotaro Hayashi,&nbsp;Atsuko Fukuyasu,&nbsp;Takamitsu Tanaka,&nbsp;Takeko Ishikawa,&nbsp;Yayoi Tada","doi":"10.1111/exd.15175","DOIUrl":"https://doi.org/10.1111/exd.15175","url":null,"abstract":"<p>Psossibility and appropriate timing of discontinuation of dupilumab for atopic dermatitis (AD) remain unclear. We explored the possibility of patients, who could maintain remission with topical therapy alone after withdrawing dupilumab in the real world. Furthermore, we identified their characteristics. All adult AD patients who initiated dupilumab from June 2018 to July 2022 and were treated with dupilumab for more than 3 months at our hospital were included in this study. The observation period was from June 2018 to July 2023. In 138 patients, 58 (42.0%) discontinued dupilumab at least once. Among them, 18 (13.0%) discontinued dupilumab but reinitiated dupilumab later due to exacerbation. Only seven patients (5.1%) could maintain remission with topical therapy alone after discontinuation of dupilumab, with characteristics of lower POEM, VAS of pruritus, serum levels of TARC and LDH, and neutrophil counts at baseline, and those of longer duration of dupilumab until its discontinuation (24.0 ± 13.3 vs. 12.8 ± 7.3 months) and lower EASI and affected BSA at the discontinuation of dupilumab. In 118 patients treated with dupilumab for at least 1 year, 38 patients (32.2%) discontinued at least once. Only four patients (3.4%) could maintain remission with topical therapy alone after discontinuation of dupilumab, with characteristics of lower POEM at baseline and lower EASI at the discontinuation of dupilumab. In conclusion, maintaining remission after withdrawing dupilumab is challenging. Discontinuation of dupilumab may be considered in patients with low baseline POEM, after more than 2 years of dupilumab treatment, with a substantial decrease in EASI.</p>","PeriodicalId":12243,"journal":{"name":"Experimental Dermatology","volume":"33 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142234023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Psoriasiform drug eruption: A case series with a review of the literature 牛皮癣样药物疹:病例系列及文献综述
IF 3.5 3区 医学
Experimental Dermatology Pub Date : 2024-09-15 DOI: 10.1111/exd.15174
Miho Mori, Hiroshi Kawakami, Rie Tobita, Takashi Arai, Atsuko Satsuma, Ryoji Tsuboi, Yukari Okubo
{"title":"Psoriasiform drug eruption: A case series with a review of the literature","authors":"Miho Mori,&nbsp;Hiroshi Kawakami,&nbsp;Rie Tobita,&nbsp;Takashi Arai,&nbsp;Atsuko Satsuma,&nbsp;Ryoji Tsuboi,&nbsp;Yukari Okubo","doi":"10.1111/exd.15174","DOIUrl":"https://doi.org/10.1111/exd.15174","url":null,"abstract":"<p>The present case series examined five instances of psoriasiform drug eruption diagnosed between 2014 and 2022 at the study site and 23 cases of drug eruption manifesting psoriasiform lesions which had been reported between 1986 and 2022. The causative drug, distribution of the skin eruptions, clinical latency to eruption, treatment course, and histopathological findings were investigated. The most common causative agents were calcium channel blockers (CCB) (64.5%). Of the 28 cases of psoriasiform drug eruption for which details of the eruption sites were reported, 46.4% occurred on the face, which was slightly higher than the usual distribution of psoriasis. CCB were responsible for 80.0% of the cases of facial skin rash. The mean time from the administration of the suspected drug to eruption onset was 25.0 months (range: 0.5–120 months; median: 13.0 months). In all the cases, the skin rash improved after the causative drug was discontinued. CCB were the most common causative agent, and the eruptions more commonly occurred on the face than in normal psoriasis, suggesting that it is especially important to confirm whether there is a history of CCB administration in psoriasis patients with extensive, facial skin eruptions.</p>","PeriodicalId":12243,"journal":{"name":"Experimental Dermatology","volume":"33 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/exd.15174","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142234021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparison of serum cytokines and chemokines levels and clinical significance in patients with pemphigus vulgaris—A retrospective study 寻常型天疱疮患者血清细胞因子和趋化因子水平的比较及其临床意义--一项回顾性研究。
IF 3.5 3区 医学
Experimental Dermatology Pub Date : 2024-09-09 DOI: 10.1111/exd.15173
Shuqiong You, Jianting Ouyang, Qian Wu, Yaozhong Zhang, Jian Gao, Xiaojia Luo, Yuan Wang, Yongzhuo Wu, Fuqiong Jiang
{"title":"Comparison of serum cytokines and chemokines levels and clinical significance in patients with pemphigus vulgaris—A retrospective study","authors":"Shuqiong You,&nbsp;Jianting Ouyang,&nbsp;Qian Wu,&nbsp;Yaozhong Zhang,&nbsp;Jian Gao,&nbsp;Xiaojia Luo,&nbsp;Yuan Wang,&nbsp;Yongzhuo Wu,&nbsp;Fuqiong Jiang","doi":"10.1111/exd.15173","DOIUrl":"10.1111/exd.15173","url":null,"abstract":"<p>In this study, we aimed to examine the relationship between the serum cytokine levels of patients with pemphigus vulgaris (PV) and the Pemphigus Disease Area Index (PDAI), along with the presence of anti-desmoglein (Dsg) 1 antibody, anti-Dsg3 antibody and co-infection among patients with pemphigus vulgaris. This retrospective study included 62 PV patients and 59 healthy individuals who attended the Second Affiliated Hospital of Kunming Medical University from November 2014 to November 2022. The serum concentrations of cytokines and chemokines were assessed using the Luminex 200 System (a high-throughput cytokine detection method). Additionally, anti-Dsg1 and anti-Dsg3 antibodies were determined through enzyme-linked immunosorbent assay, while disease severity was evaluated using the PDAI scoring system. The PV group exhibited elevated levels of Th1 cytokines (such as interleukin (IL)-1RA, IL-1β, IL-2, IL-12p70, GM-CSF, TNF-α, IL-18, IFN-γ), Th2 cytokines (IL-5, IL-10, IL-13) and Th17/Th22-related cytokines (IL-17A, IL-22) compared to the healthy control group (<i>p</i> &lt; 0.05). Conversely, the levels of chemokines (macrophage inflammatory protein-1 alpha (MIP-1α), stromal cell-derived factor-1 alpha (SDF-1α), interferon-inducible protein-10 (IP-10), Regulated on Activation in Normal T-Cell Expressed And Secreted (RANTES), growth-regulated on-gene-alpha (GRO-α), MIP-1β) and Th2 (IL-31) were lower in the PV group compared to the healthy control group (<i>p</i> &lt; 0.05). No significant differences were observed in other cytokines and chemokines (<i>p</i> &gt; 0.05). Additionally, IL-7, IFN-γ, IL-18 and GRO-α showed positive correlations with PDAI, IL-6 correlated positively with anti-Dsg3 antibody levels, and IL-12p70, IL-18, and IFN-γ correlated positively with anti-Dsg1 antibody levels. Furthermore, IL-15 exhibited a positive association with skin infections. PV patients have elevated levels of various cytokines and chemokines, and there are different degrees of elevation in cytokines and chemokines associated with the activation of various T cell subsets. PDAI and the Dsg1 antibody levels are mainly related to the Th1-related cytokines.</p>","PeriodicalId":12243,"journal":{"name":"Experimental Dermatology","volume":"33 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142153537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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