{"title":"Urticarial vasculitis.","authors":"Tülin Ergun","doi":"10.1097/BOR.0000000000001058","DOIUrl":"10.1097/BOR.0000000000001058","url":null,"abstract":"<p><strong>Purpose of review: </strong>Urticarial vasculitis is a rare condition manifesting with a variety of clinical presentations ranging from skin limited lesions to life-threatening systemic illnesses. This review aims to highlight the recent findings on the etiology, diagnostic modalities, and therapeutic strategies and course of urticarial vasculitis.</p><p><strong>Recent findings: </strong>In addition to well established triggers, urticarial vasculitis (UV) cases associated with severe acute respiratory syndrome coronavirus 2 (SARS-Cov2) disease and COVID-19 vaccines, vacuoles, E1 enzyme, X-linked, autoinflammatory, somatic (VEXAS) syndrome, and adenosine deaminase (ADA) deficiency have been reported. A clinical-dermoscopic model for differentiating urticarial vasculitis has been developed with purpuric patches and globules favoring UV diagnosis and thus diminishing the need for histopathology. The efficacy of treatment modalities has been reviewed, and antihistamines, systemic corticosteroids, omalizumab, cyclophosphamide, tocilizumab, anti-interleukin (IL)-1 agents, and rituximab were shown to have the highest success rates. Regarding the durability of remission, rituximab, dapsone, and MMF were related to long-lasting treatment free responses. The course of hypocomplementemic urticarial vasculitis was investigated in an epidemiological study, revealing 5- and 10-year survival rates of 92% and 83%, respectively. Chronic obstructive pulmonary disease, septicemia, and end-stage renal disease were identified as causes of mortality.</p><p><strong>Summary: </strong>With the aid of dermoscopy, a noninvasive tool, differentiation from chronic spontaneous urticaria can be made, and the need for histopathological examination can be diminished. Although clear definitions and consensus criteria for performing disease severity are lacking, careful screening is needed to tailor the treatment on an individual basis. Emerging infections like SARS-CoV 2, vaccines, and autoinflammatory disorders like VEXAS syndrome and ADA deficiency are new associations. The optimal use of well established agents like systemic corticosteroids and immunomodulators are mainstay treatment modalities, whereas IL-1 inhibitors, omalizumab, rituximab and Janus Kinase inhibitors may represent viable alternatives in selected cases.</p>","PeriodicalId":11145,"journal":{"name":"Current opinion in rheumatology","volume":"37 1","pages":"45-50"},"PeriodicalIF":5.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142726826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Neurovascular dysregulation in systemic sclerosis: novel insights into pathophysiology, diagnosis, and treatment utilizing invasive cardiopulmonary exercise testing.","authors":"Elizabeth Tarras, Phillip Joseph","doi":"10.1097/BOR.0000000000001070","DOIUrl":"10.1097/BOR.0000000000001070","url":null,"abstract":"<p><strong>Purpose of review: </strong>Pathologic abnormalities in skeletal muscle and the systemic vasculature are common in patients with systemic sclerosis (SSc). These abnormalities may lead to impaired systemic peripheral oxygen extraction (EO 2 ), known as neurovascular dysregulation, which may be because of abnormal blood flow distribution in the vasculature, microvascular shunting, and/or skeletal muscle mitochondrial dysfunction. Findings from invasive cardiopulmonary exercising testing (iCPET) provide important insights and enable diagnosis and treatment of this SSc disease manifestation.</p><p><strong>Recent findings: </strong>Recent findings from noninvasive cardiopulmonary exercise testing (niCPET) support the existence of neurovascular dysregulation in patients with SSc. Invasive cardiopulmonary exercise testing (iCPET) has pointed to reduced systemic vascular distensibility as a possible mechanism for neurovascular dysregulation in patients with connective tissue diseases, including SSc.</p><p><strong>Summary: </strong>Neurovascular dysregulation is likely an underappreciated cause of exercise impairment and dyspnea in patients with SSc in the presence or absence of underlying cardiopulmonary disease. It is posited to be related to microcirculatory and muscle dysfunction. Further studies are needed to clarify the pathophysiology of neurovascular dysregulation in SSc and to identify novel treatment targets and additional therapies.</p>","PeriodicalId":11145,"journal":{"name":"Current opinion in rheumatology","volume":" ","pages":"93-101"},"PeriodicalIF":5.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142567803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"VEXAS syndrome: an adult-onset autoinflammatory disorder with underlying somatic mutation.","authors":"Ina Kötter, Martin Krusche","doi":"10.1097/BOR.0000000000001068","DOIUrl":"10.1097/BOR.0000000000001068","url":null,"abstract":"<p><strong>Purpose of review: </strong>VEXAS syndrome (Vacuoles, E1 enzyme, X-linked, Autoinflammatory, Somatic) was first described in 2020, where in a cohort of adults with unexplained fever or inflammation, systematic genetic testing was performed and 25 men with a median age of 64 years and somatic mutations in the UBA1 gene were identified. In the current review, we aim to discuss the relevant literature from January 2023 until July 2024 to give new insights into the pathophysiology, epidemiology, diagnosis and treatment of VEXAS.</p><p><strong>Recent findings: </strong>VEXAS affects 1 : 4269 in men over the age of 50. Janus-Kinase-inhibitors (JAKi) and IL-6-inhibitors are more effective immunosuppressants against hyperinflammation. Ruxolitinib is more effective than other JAKi. Azacitidine induces remission in many patients, but only few MDS-associated patients were treated. Allogeneic stem cell transplantation is feasible for selected cases. Infections are the major cause of death. Prognosis is still poor with a 5-year mortality rate of 18-40%.</p><p><strong>Summary: </strong>In the current review, we discuss the novelties for VEXAS, including pathogenic pathways, epidemiological data, diagnostic criteria and algorithms, treatment options and complications. We hope that this review may improve rheumatologists understanding of VEXAS. We strongly recommend enrolling VEXAS patients in registries and clinical trials, to improve prognosis of VEXAS in the future.</p>","PeriodicalId":11145,"journal":{"name":"Current opinion in rheumatology","volume":" ","pages":"21-31"},"PeriodicalIF":5.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142521323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Polymyalgia rheumatica and giant cell arteritis: diagnosis and management.","authors":"Margaret Man-Ger Sun, Janet E Pope","doi":"10.1097/BOR.0000000000001059","DOIUrl":"10.1097/BOR.0000000000001059","url":null,"abstract":"<p><strong>Purpose of review: </strong>There have been advances in the diagnosis and treatment of giant cell arteritis (GCA) and polymyalgia rheumatica (PMR).</p><p><strong>Recent findings: </strong>Themes in PMR and GCA include classification criteria, ultrasound imaging of temporal and axillary arteries replacing biopsies for diagnosis of GCA, faster diagnosis and treatment with rapid access clinics for suspected GCA, and expanding treatment options with the goal of rapid suppression of inflammation and sparing steroids.</p><p><strong>Summary: </strong>Treatment is aimed at suppressing inflammation quickly in both GCA and PMR. Randomized trials have demonstrated success in reducing glucocorticoids when adding advanced therapies such as interleukin 6 (IL6) inhibitors. Other treatments including Janus kinase (JAK) inhibitors (especially a phase 3 trial of upadacitinib at 15 mg daily and secukinumab (an IL17 inhibitor) are being tested. Some uncontrolled GCA protocols are limiting glucocorticoids to initial IV pulse therapy only or rapid tapering of oral glucocorticoids with upfront treatment with tocilizumab. There is uncertainty of who should have an advanced therapy and how long to use it for and what order to consider advanced therapies when treatment fails. In PMR, studies are performed when patients cannot taper glucocorticoids effectively, whereas in GCA, advanced therapies are started with disease onset or with recurrent GCA.</p>","PeriodicalId":11145,"journal":{"name":"Current opinion in rheumatology","volume":" ","pages":"32-38"},"PeriodicalIF":5.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142460135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Giant cell arteritis: update on pathogenesis and clinical implications.","authors":"Hafeez E Ibrahim, Cosimo De Bari","doi":"10.1097/BOR.0000000000001051","DOIUrl":"https://doi.org/10.1097/BOR.0000000000001051","url":null,"abstract":"<p><strong>Purpose of review: </strong>Giant cell arteritis (GCA) is an age-related autoimmune disease with a complex pathogenesis that involves several pathogenic mechanisms. This review provides recent critical insights into novel aspects of GCA pathogenesis.</p><p><strong>Recent findings: </strong>The use of novel approaches, including multiomic techniques, has uncovered notable findings that broaden the understanding of GCA pathogenesis. TCF1hiCD4+ T cells have been identified as stem-like T cells residing in tertiary lymphoid structures in the adventitia of GCA aortic tissues, which likely supply the pathogenic effector T cells present in vasculitic lesions. Studies have demonstrated that fibroblasts present in GCA-inflamed arteries are not innocent bystanders, but they contribute to arterial inflammation via maintenance of Th1 and Th17 polarisation, cytokine secretion (IL-6, IL-1B, IL-12, and IL-23) and antigen presentation. Additionally, deregulated cellular senescence programs are present in GCA as an accumulation of IL-6 and matrix metalloproteinase 9-producing senescent cells have been identified in vasculitic lesions.</p><p><strong>Summary: </strong>Recent studies have unravelled interesting findings with potentially significant clinical relevance. Stem-like T cells are likely key contributors to vascular disease persistence, and targeted depletion or modulation of these cells holds promise in GCA management. Fibroblast-targeting therapies and senotherapeutics are also exciting prospects in the treatment of GCA.</p>","PeriodicalId":11145,"journal":{"name":"Current opinion in rheumatology","volume":"37 1","pages":"72-79"},"PeriodicalIF":5.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142726799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Autoantibodies as putative biomarkers and triggers of cell dysfunctions in systemic sclerosis.","authors":"Irene Rosa, Eloisa Romano, Bianca Saveria Fioretto, Mirko Manetti","doi":"10.1097/BOR.0000000000001035","DOIUrl":"10.1097/BOR.0000000000001035","url":null,"abstract":"<p><strong>Purpose of review: </strong>Antinuclear autoantibodies represent a serological hallmark of systemic sclerosis (SSc), with anticentromere, antitopoisomerase-I, and anti-RNA polymerase III antibodies routinely assessed for diagnosis, clinical subset classification, and prognosis. In addition, an increasing number of autoantibodies have been demonstrated to play a pathogenic role by mediating different SSc manifestations. This review aims to give an overview on autoantibodies as putative biomarkers in SSc and discuss their possible pathogenic role as triggers of cell dysfunctions.</p><p><strong>Recent findings: </strong>Over the years, different autoantibodies have been proposed as biomarkers aiding in diagnosis, disease subtype classification, disease progression prediction, organ involvement, as well as in understanding treatment response. Increasing literature also indicates functional autoantibodies as direct contributors to SSc pathogenesis by exerting agonistic or antagonistic activities on their specific cognate targets.</p><p><strong>Summary: </strong>In SSc, search and validation of novel autoantibodies with higher diagnostic specificity and more accurate predictive values are increasingly needed for early diagnosis and specific follow-up, and to define the best therapeutic option according to different disease subsets. Moreover, since autoantibodies are also emerging as functional pathogenic players, a better unraveling of their possible pathomechanisms becomes essential to identify new targets and develop promising therapeutic agents able to neutralize their effects.</p>","PeriodicalId":11145,"journal":{"name":"Current opinion in rheumatology","volume":" ","pages":"51-63"},"PeriodicalIF":5.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11608619/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141751334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Alana J Haussmann, Zsuzsanna H McMahan, Elizabeth R Volkmann
{"title":"Understanding the gastrointestinal microbiome in systemic sclerosis: methodological advancements and emerging research.","authors":"Alana J Haussmann, Zsuzsanna H McMahan, Elizabeth R Volkmann","doi":"10.1097/BOR.0000000000001048","DOIUrl":"10.1097/BOR.0000000000001048","url":null,"abstract":"<p><strong>Purpose of review: </strong>This review highlights the role of the gastrointestinal (GI) microbiome in systemic sclerosis (SSc). We describe techniques for evaluating the GI microbiome in humans, and emerging research linking GI microbiome alterations (i.e., dysbiosis) and distinct SSc clinical manifestations. We also address the evolving treatment landscape targeting dysbiosis in SSc.</p><p><strong>Recent findings: </strong>Recent literature brings into focus the complex relationship between the GI microbiome and SSc pathogenesis. Advanced techniques (e.g., shotgun metagenomics, meta-transcriptomics) provide deeper insights into microbial taxonomy and active gene expression, exposing dysbiosis as a potential driver of SSc. New studies demonstrate that SSc patients who possess specific SSc clinical features, (e.g., interstitial lung disease), have unique GI microbiome profiles.</p><p><strong>Summary: </strong>Dysbiosis is associated with specific clinical features in patients with SSc. New tools for studying the GI microbiome have furthered our understanding of the relationship between dysbiosis and SSc complications. Therapeutic avenues such as dietary adjustments, probiotics, antibiotics, mindfulness practices, and fecal transplants offer potential for managing SSc and preventing its progression through GI microbiome modulation. By clarifying what is known about the relationship between the GI dysbiosis, GI dysfunction, and SSc, this review enhances our understanding of SSc pathogenesis and proposes targeted interventions.</p>","PeriodicalId":11145,"journal":{"name":"Current opinion in rheumatology","volume":" ","pages":"401-409"},"PeriodicalIF":5.2,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11588518/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142072320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cross-tissue organization of myeloid cells in scleroderma and related fibrotic diseases.","authors":"Ian D Odell","doi":"10.1097/BOR.0000000000001047","DOIUrl":"10.1097/BOR.0000000000001047","url":null,"abstract":"<p><strong>Purpose of review: </strong>Scleroderma and other fibrotic diseases have been investigated using single-cell RNA sequencing (scRNA-Seq), which has demonstrated enrichment in myeloid cell populations in multiple tissues. However, scRNA-Seq studies are inconsistent in their nomenclature of myeloid cell types, including dendritic cells, monocytes, and macrophages. Using cell type-defining gene signatures, I propose a unified nomenclature through analysis of myeloid cell enrichment across fibrotic tissues.</p><p><strong>Recent findings: </strong>scRNA-Seq of human blood and skin identified a new subset of dendritic cells called DC3. DC3 express similar inflammatory genes to monocytes, including FCN1 , IL1B, VCAN, S100A8, S100A9 , and S100A12 . DC3 can be distinguished from monocytes by expression of EREG and Fc receptor genes such as FCER1A and FCGR2B . scRNA-Seq analyses of scleroderma skin and lung, idiopathic pulmonary fibrosis (IPF), COVID-19 lung fibrosis, myelofibrosis, and liver, kidney, and cardiac fibrosis all showed enrichment in myeloid cell types. Although they were called different names, studies of scleroderma skin and lung as well as liver cirrhosis datasets demonstrated enrichment in DC3. By contrast, lung, heart, and kidney fibrosis were enriched in SPP1 macrophages. High numbers of DC3 in the skin was associated with worse SSc skin and lung fibrosis severity.</p><p><strong>Summary: </strong>scRNA-Seq of multiple diseases showed enrichment of DC3 in fibrotic skin, lung, and liver, whereas SPP1 macrophages occurred in fibrotic lung, heart, and kidney. Because DC3 and SPP1 macrophages showed organ-specific enrichment, understanding their signaling mechanisms across tissues will be important for future investigation.</p>","PeriodicalId":11145,"journal":{"name":"Current opinion in rheumatology","volume":" ","pages":"379-386"},"PeriodicalIF":5.2,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11451931/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142016685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}