Tristán Gabriel Sobral-Costas, Rafael Escudero-Tornero, Elena Sendagorta Cudos
{"title":"Bilateral periorbital leukemia cutis.","authors":"Tristán Gabriel Sobral-Costas, Rafael Escudero-Tornero, Elena Sendagorta Cudos","doi":"10.1093/bjd/ljae496","DOIUrl":"https://doi.org/10.1093/bjd/ljae496","url":null,"abstract":"","PeriodicalId":9238,"journal":{"name":"British Journal of Dermatology","volume":" ","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142869388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hannah Badawy, Jane Harvey, Neil Rajan, Beth Stuart, Simon Tso
{"title":"Changes in skin research funding: the emergence of environmental sustainability criteria in the research competition assessment process.","authors":"Hannah Badawy, Jane Harvey, Neil Rajan, Beth Stuart, Simon Tso","doi":"10.1093/bjd/ljae503","DOIUrl":"https://doi.org/10.1093/bjd/ljae503","url":null,"abstract":"","PeriodicalId":9238,"journal":{"name":"British Journal of Dermatology","volume":" ","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142863480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"RPL36-mediated selective loading of miR-4432 into extracellular vesicles contributes to perivascular cell dysfunction in venous malformations.","authors":"Gao-Hong Chen, Jian-Gang Ren, Hou-Fu Xia, He-Jing Zhang, Kui-Ming Wang, Lin-Zhou Zhang, Gang Chen","doi":"10.1093/bjd/ljae492","DOIUrl":"https://doi.org/10.1093/bjd/ljae492","url":null,"abstract":"<p><strong>Background: </strong>Venous malformations (VMs), predominantly arising from activating mutations of tyrosine kinase receptor TIE2 within endothelial cells (ECs), are characterized by dilated and tortuous vessels with a paucity of perivascular cells. The mechanisms of interaction between mutant ECs and perivascular cells remain largely elusive.</p><p><strong>Objectives: </strong>To investigate the characteristics of extracellular vesicles (EVs) from VM ECs, especially their carried miRNAs and their roles in the crosstalk between ECs and perivascular cells in VM pathogenesis.</p><p><strong>Methods: </strong>MiRNA profiles of human umbilical vein endothelial cells overexpressing TIE2L914F (L914F cells) and TIE2WT (WT cells) along with their EVs were analyzed using RNA sequencing. In vitro studies using umbilical cord stem cells (UCSCs) were performed for the functional assays of VM EVs and their enriched microRNA-4432 (miR-4432). MiRNA-pulldown and RNA interference techniques were employed to identify the sorting regulator of miR-4432 into VM EVs.</p><p><strong>Results: </strong>We observed an upregulation of RNA secretion in L914F EVs compared to WT EVs. MiRNA sequencing revealed a distinguished profile of L914F EVs compared to L914F cells, WT cells, and WT EVs, identifying miR-4432 as preferentially encapsulated within EVs from L914F cells. Functional assays demonstrated that VM EVs and EV-carried miR-4432 inhibited the differentiation, adhesion, and proliferation of UCSCs. Furthermore, RPL36 was identified as an RNA binding protein and sorting regulator of miR-4432 during the EV secretion process in L914F cells.</p><p><strong>Conclusions: </strong>This study, for the first time, identifies the interaction between VM ECs and perivascular cells via EVs, and offers valuable data on the miRNA profiles of VM ECs and normal ECs, along with their EVs. Our findings suggest that the RPL36-mediated selective loading of miR-4432 into EVs may contribute to the aberrant perivascular cell coverage in VMs, providing novel insights into VM pathogenesis and potential treatment strategies.</p>","PeriodicalId":9238,"journal":{"name":"British Journal of Dermatology","volume":" ","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142863485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Rapid and sustained response of stubborn guttate psoriasis to ustekinumab: A 52-week, two-center, one-arm, observational study.","authors":"Liuyu Chen, Minjia Tan, Tao Li, Laiqiang Zhu, Changxu Han, Leying Liu, Zhenying Zhang","doi":"10.1093/bjd/ljae481","DOIUrl":"https://doi.org/10.1093/bjd/ljae481","url":null,"abstract":"<p><p>Ustekinumab showed significant and prolonged efficacy in treating stubborn GP patients, particularly for those patients with SDD. The CARD14: rs11652075C>T may serve as a predictor of favorable treatment response.</p>","PeriodicalId":9238,"journal":{"name":"British Journal of Dermatology","volume":" ","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142845882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nessr Abu Rached, Kristina Spies, Thilo Gambichler, Yannik Haven, Lennart Ocker, Daniel Myszkowski, Eggert Stockfleth, Falk Bechara
{"title":"Clinical differences between patients with and without a positive family history of hidradenitis suppurativa - a retrospective analysis of 1452 patients.","authors":"Nessr Abu Rached, Kristina Spies, Thilo Gambichler, Yannik Haven, Lennart Ocker, Daniel Myszkowski, Eggert Stockfleth, Falk Bechara","doi":"10.1093/bjd/ljae493","DOIUrl":"https://doi.org/10.1093/bjd/ljae493","url":null,"abstract":"","PeriodicalId":9238,"journal":{"name":"British Journal of Dermatology","volume":" ","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142852796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Raka Mitra, Tracy K Hale, Helen L Fitzsimons, Clint Gray, Madeleine P J White
{"title":"A novel three-dimensional model of Infantile Haemangioma.","authors":"Raka Mitra, Tracy K Hale, Helen L Fitzsimons, Clint Gray, Madeleine P J White","doi":"10.1093/bjd/ljae483","DOIUrl":"10.1093/bjd/ljae483","url":null,"abstract":"<p><p>Infantile Haemangioma (IH) is vascular tumour in infants exhibiting rapid proliferation and angiogenesis followed by gradual involution.10% of cases are associated with disfiguring complications and requires medical interventions with β-blockers such as propranolol, surgery, or laser therapy. An in vitro IH three-dimensional (3D) model will improve our understanding of the disease mechanism(s). We have isolated and expanded CD31+ endothelial cells (HemEC) from patient-derived IH cell lines, and then grown as spheroids in StemDIFF Endothelial expansion media. These were then embedded in extracellular matrix hydrogel with reduced growth factors to initiate angiogenic sprouting. HemEC spheroids expressed CD31, GLUT1, VEGFR2, CD44, Vimentin, CD133 but not SMA, indicating their similarity to immature IH blood vessels and their angiogenic potential. Proteomic analysis revealed similar homology in terms of protein expression in spheroids and IH tissue. The high-throughput application of this 3D angiogenesis model was tested using propranolol to inhibit sprouting of spheroids with increased toxicity response. This study reports the development of a 3D model of IH that recapitulates angiogenic features of IH for molecular analysis and drug screening.</p>","PeriodicalId":9238,"journal":{"name":"British Journal of Dermatology","volume":" ","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142833854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
David C Whiteman, Nirmala Pandeya, Catherine M Olsen
{"title":"Differences in mean age at diagnosis of invasive melanoma for men and women, by anatomic site, thickness, and subtype.","authors":"David C Whiteman, Nirmala Pandeya, Catherine M Olsen","doi":"10.1093/bjd/ljae482","DOIUrl":"https://doi.org/10.1093/bjd/ljae482","url":null,"abstract":"<p><strong>Background: </strong>Understanding the factors influencing age at melanoma diagnosis by sex and anatomic site is crucial for developing effective prevention and early detection strategies. While previous research has highlighted sex-based differences in melanoma incidence by age and anatomic distribution, the underlying mechanisms remain unclear. We aimed to investigate sex-specific patterns in melanoma age at diagnosis across different anatomic sites and thickness categories, considering the potential influence of disease progression and detection rates.</p><p><strong>Methods: </strong>We conducted a registry-based study to examine mean age at diagnosis of invasive melanoma over two decades for men and women in the US (limited to white race), and Queensland, Australia. Mean age at diagnosis was calculated for men and women according to anatomic site (head/neck, trunk, upper limb, lower limb), and further by Breslow thickness (<1.00 mm, 1.01-2.00 mm, 2.01-4.00 mm, >4.00 mm) and histologic subtype (superficial spreading, nodular, lentigo maligna, 'other' subtypes, and subtype 'not otherwise specified'). Case-listings of all invasive melanoma diagnoses between 1 January 1999 and 31 December 2018 were obtained from the National Cancer Institute's Surveillance, Epidemiology, and End Results (SEER) program (9 registries) and from the Queensland Cancer Registry. Sensitivity analyses were performed restricting the data to the most recent 5-year time period (2014-2018). All analyses were conducted between 15 July and 19 August 2024.</p><p><strong>Results: </strong>On average, women were diagnosed with invasive melanoma 3-8 years younger than men. The sex-difference in mean age at diagnosis was observed at all body sites and across most thickness categories in the US White and Queensland populations, but was most marked for thinner melanomas (<1.00 mm) and melanoma of the trunk. Women were significantly younger than men at diagnosis of superficial spreading and nodular melanoma at all body sites in both populations, even within 0.1mm thickness strata.</p><p><strong>Conclusions: </strong>Sex may be a factor that influences melanocytic progression. The consistently younger age of melanoma diagnosis in women compared with men suggests a need for tailored approaches to melanoma control.</p>","PeriodicalId":9238,"journal":{"name":"British Journal of Dermatology","volume":" ","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142845826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Beyond the Algorithm: Ethical Challenges in AI-Driven Skin Cancer Diagnosis.","authors":"Magnus Lynch","doi":"10.1093/bjd/ljae490","DOIUrl":"https://doi.org/10.1093/bjd/ljae490","url":null,"abstract":"","PeriodicalId":9238,"journal":{"name":"British Journal of Dermatology","volume":" ","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142833863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}