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ObjectivesTo develop EULAR recommendations for screening and prophylaxis of chronic and opportunistic infections in patients with autoimmune inflammatory rheumatic diseases (AIIRD).MethodsAn international Task Force (TF) (22 members/15 countries) formulated recommendations, supported by systematic literature review findings. Level of evidence and grade of recommendation were assigned for each recommendation. Level of agreement was provided anonymously by each TF member.ResultsFour overarching principles (OAP) and eight recommendations were developed. The OAPs highlight the need for infections to be discussed with patients and with other medical specialties, in accordance with national regulations. In addition to biologic/targeted synthetic disease-modifying antirheumatic drugs (DMARDs) for which screening for latent tuberculosis (TB) should be performed, screening could be considered also before conventional synthetic DMARDs, glucocorticoids and immunosuppressants. Interferon gamma release assay should be preferred over tuberculin skin test, where available. Hepatitis B (HBV) antiviral treatment should be guided by HBV status defined prior to starting antirheumatic drugs. All patients positive for hepatitis-C-RNA should be referred for antiviral treatment. Also, patients who are non-immune to varicella zoster virus should be informed about the availability of postexposure prophylaxis should they have contact with this pathogen. Prophylaxis against Pneumocystis jirovecii seems to be beneficial in patients treated with daily doses >15–30 mg of prednisolone or equivalent for >2–4 weeks.ConclusionsThese recommendations provide guidance on the screening and prevention of chronic and opportunistic infections. Their adoption in clinical practice is recommended to standardise and optimise care to reduce the burden of opportunistic infections in people living with AIIRD.

Among patients with rheumatic heart disease and atrial fibrillation who received a vitamin K antagonist or rivaroxaban, the rate of stroke, systemic embolism, MI, or death from vascular or unknown causes was lower with a VKA, without increased bleeding.

BackgroundRheumatic and musculoskeletal immune-related adverse events (irAEs) are observed in about 10% of patients with cancer receiving checkpoint inhibitors (CPIs). Given the recent emergence of these events and the lack of guidance for rheumatologists addressing them, a European League Against Rheumatism task force was convened to harmonise expert opinion regarding their identification and management.MethodsFirst, the group formulated research questions for a systematic literature review. Then, based on literature and using a consensus procedure, 4 overarching principles and 10 points to consider were developed.ResultsThe overarching principles defined the role of rheumatologists in the management of irAEs, highlighting the shared decision-making process between patients, oncologists and rheumatologists. The points to consider inform rheumatologists on the wide spectrum of musculoskeletal irAEs, not fulfilling usual classification criteria of rheumatic diseases, and their differential diagnoses. Early referral and facilitated access to rheumatologist are recommended, to document the target organ inflammation. Regarding therapeutic, three treatment escalations were defined: (1) local/systemic glucocorticoids if symptoms are not controlled by symptomatic treatment, then tapered to the lowest efficient dose, (2) conventional synthetic disease-modifying antirheumatic drugs, in case of inadequate response to glucocorticoids or for steroid sparing and (3) biological disease-modifying antirheumatic drugs, for severe or refractory irAEs. A warning has been made on severe myositis, a life-threatening situation, requiring high dose of glucocorticoids and close monitoring. For patients with pre-existing rheumatic disease, baseline immunosuppressive regimen should be kept at the lowest efficient dose before starting immunotherapies.ConclusionThese statements provide guidance on diagnosis and management of rheumatic irAEs and aim to support future international collaborations.

The COVID-19 pandemic has brought challenges for people with rheumatic disease in addition to those faced by the general population, including concerns about higher risks of infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and poor outcomes of COVID-19. The data that are now available suggest that rheumatic disease is associated with a small additional risk of SARS-CoV-2 infection, and that outcomes of COVID-19 are primarily influenced by comorbidities and particular disease states or treatments. Despite considerable advances in our knowledge of which therapeutic agents provide benefits in COVID-19, and of what constitutes effective vaccination strategies, the specific considerations that apply to people with rheumatic disease are yet to be definitively addressed. An overview of the most important COVID-19 studies to date that relate to people with rheumatic disease can contribute to our understanding of the clinical-care requirements of this population.In this Review, the authors summarize the current knowledge relating to SARS-CoV-2 infection and the prevention and treatment of COVID-19 in people with rheumatic disease.

Multi-omics technologies have increasingly been applied to systemic autoimmune rheumatic diseases (SARDs), yet the global research landscape and thematic evolution of this field remain unclear. This study intends to systematically review the application status and development trends of multi-omics technologies in SARDs research over the past two decades via bibliometric analysis, so as to guide future research directions. Relevant English literatures on multi-omics application in SARDs were retrieved from the Web of Science Core Collection (WoSCC) database, covering the period from January 1, 2005, to Dec 31, 2025. Multi-omics was operationally defined as studies reporting integration of at least two omics layers in one investigation. After deduplication and visual screening, A total of 2576 documents (2072 research articles and 504 reviews) were included. Bibliometric and visual analyses were performed using CiteSpace, VOSviewer, Phthon and bibliometrix. R package.A complementary PubMed analysis was performed to validate thematic robustness and assess clinically oriented studies. Annual output increased from 11 publications in 2005 to 525 by 2025, with three developmental phases: exploratory (2005-2015), acceleration (2016-2020), and expansion (2021-2025). China (27%) and the United States (17.3%) accounting for 44.3% of total output. European countries demonstrated higher international collaboration rates (MCP% up to 39.2%). Core institutions included Harvard University and the University of California et al. Keyword and burst analyses indicated a thematic shift from proteomics and synovial fluid profiling to epigenetics and metabolomics, and most recently to single-cell RNA sequencing-driven immune cell differentiation research. Citation analysis revealed a centralized intellectual structure anchored in high-impact immunology and rheumatology journals. PubMed validation confirmed consistent growth patterns and thematic concentration on biomarker discovery and mechanistic studies. Multi-omics research in SARDs has progressed from bulk molecular characterization toward high-resolution immune cell-level investigation, with increasing emphasis on biomarker stratification and immune heterogeneity. By delineating developmental phases, global collaboration patterns, and thematic immunological shifts, this study provides a quantitative framework for evaluating the current maturity and future translational direction of multi-omics research in autoimmune diseases.

ObjectiveTo investigate differences in manifestations and outcomes of coronavirus disease 2019 (COVID-19) infection between those with and without rheumatic disease.MethodsWe conducted a comparative cohort study of patients with rheumatic disease and COVID-19 (confirmed by severe acute respiratory syndrome coronavirus 2 PCR), compared in a 1:2 ratio with matched comparators on age, sex and date of COVID-19 diagnosis, between 1 March and 8 April 2020, at Partners HealthCare System in the greater Boston, Massachusetts area. We examined differences in demographics, clinical features and outcomes of COVID-19 infection. The main outcomes were hospitalisation, intensive care admission, mechanical ventilation and mortality.ResultsWe identified 52 rheumatic disease patients with COVID-19 (mean age, 63 years; 69% female) and matched these to 104 non-rheumatic disease comparators. The majority (39, 75%) of patients with rheumatic disease were on immunosuppressive medications. Patients with and without rheumatic disease had similar symptoms and laboratory findings. A similar proportion of patients with and without rheumatic disease were hospitalised (23 (44%) vs 42 (40%)), p=0.50) but those with rheumatic disease required intensive care admission and mechanical ventilation more often (11 (48%) vs 7 (18%), multivariable OR 3.11 (95% CI 1.07 to 9.05)). Mortality was similar between the two groups (3 (6%) vs 4 (4%), p=0.69).ConclusionsPatients with rheumatic disease and COVID-19 infection were more likely to require mechanical ventilation but had similar clinical features and hospitalisation rates as those without rheumatic disease. These findings have important implications for patients with rheumatic disease but require further validation.

Background: Numerous cases of the coronavirus disease 2019 (COVID-19) with autoimmune and rheumatic manifestations have been reported. Despite the available reviews that summarized its autoimmune/rheumatic manifestations, a systematic approach is still lacking. Therefore, we conducted a comprehensive systematic review in order to give an overview upon these rare but clinically significant manifestations. Methods: We performed a literature search of PubMed and EMBASE as of October 9, 2020. All articles relevant to either systemic or organ-specific autoimmune and rheumatic manifestations potentially associated with COVID-19 were collected. The reviewed literature were limited to adults ≥18 years. Results: Although most of the existing evidence was based on case reports or case series without a long-term follow-up, a variety of autoimmune/rheumatic manifestations were associated with COVID-19. The manifestations that have a consistent association with COVID-19 include autoimmune cytopenia, cutaneous vasculitis, encephalitis, and Guillain-Barre syndrome. Such association is conflicting as regards to antiphospholipid syndrome, hemophagocytic lymphohistiocytosis, and myasthenia gravis. Conclusion: Our systematic review indicated the potential of the COVID-19 virus to trigger a myriad of autoimmune and rheumatic manifestations, which should be considered amid global efforts to combat COVID-19.

More than any other cytokine family, the 11 members of the IL-1 family are associated with innate immune responses, which occur in acute inflammation and chronic inflammatory conditions such as rheumatic diseases. In many rheumatic diseases, the severity of the condition can result from the balance between the pro-inflammatory and anti-inflammatory members of the IL-1 family. Pro-inflammatory family members (IL-1α, IL-1β, IL-18, IL-33, IL-36α, IL-36β and IL-36γ) are found in the articular environment during arthritis and often correlate with the degree of inflammation present. IL-1β has emerged as pivotal for promoting inflammation, particularly in autoinflammatory diseases, whereas IL-1α and the IL-36 subfamily are associated with skin diseases. IL-33 regulates T helper 2 (TH2) cell-mediated diseases, in sharp contrast to IL-18, which mainly regulates TH1 cell-mediated responses. The IL-1 family also contains four members that suppress inflammation: two specific receptor antagonists (IL-1 receptor antagonist (IL-1Ra) and IL-36 receptor antagonist (IL-36Ra)), and two members that broadly suppress innate inflammation by non-specifically reducing several cytokines and chemokines (IL-37 and IL-38). In this Review, each of the eleven IL-1 family cytokines and their receptors are discussed, along with their putative roles in rheumatic disease and therapeutic options for targeting or promoting these cytokines.

ObjectivesThe impact of inflammatory rheumatic diseases on COVID-19 severity is poorly known. Here, we compare the outcomes of a cohort of patients with rheumatic diseases with a matched control cohort to identify potential risk factors for severe illness.MethodsIn this comparative cohort study, we identified hospital PCR+COVID-19 rheumatic patients with chronic inflammatory arthritis (IA) or connective tissue diseases (CTDs). Non-rheumatic controls were randomly sampled 1:1 and matched by age, sex and PCR date. The main outcome was severe COVID-19, defined as death, invasive ventilation, intensive care unit admission or serious complications. We assessed the association between the outcome and the potential prognostic variables, adjusted by COVID-19 treatment, using logistic regression.ResultsThe cohorts were composed of 456 rheumatic and non-rheumatic patients, in equal numbers. Mean age was 63 (IQR 53–78) years and male sex 41% in both cohorts. Rheumatic diseases were IA (60%) and CTD (40%). Most patients (74%) had been hospitalised, and the risk of severe COVID-19 was 31.6% in the rheumatic and 28.1% in the non-rheumatic cohort. Ageing, male sex and previous comorbidity (obesity, diabetes, hypertension, cardiovascular or lung disease) increased the risk in the rheumatic cohort by bivariate analysis. In logistic regression analysis, independent factors associated with severe COVID-19 were increased age (OR 4.83; 95% CI 2.78 to 8.36), male sex (1.93; CI 1.21 to 3.07) and having a CTD (OR 1.82; CI 1.00 to 3.30).ConclusionIn hospitalised patients with chronic inflammatory rheumatic diseases, having a CTD but not IA nor previous immunosuppressive therapies was associated with severe COVID-19.

The cellular complexity and functional diversity of the human immune system necessitate the use of high-dimensional single-cell tools to uncover its role in multifaceted diseases such as rheumatic diseases, as well as other autoimmune and inflammatory disorders. Proteomic technologies that use elemental (heavy metal) reporter ions, such as mass cytometry (also known as CyTOF) and analogous high-dimensional imaging approaches (including multiplexed ion beam imaging (MIBI) and imaging mass cytometry (IMC)), have been developed from their low-dimensional counterparts, flow cytometry and immunohistochemistry, to meet this need. A growing number of studies have been published that use these technologies to identify functional biomarkers and therapeutic targets in rheumatic diseases, but the full potential of their application to rheumatic disease research has yet to be fulfilled. This Review introduces the underlying technologies for high-dimensional immune monitoring and discusses aspects necessary for their successful implementation, including study design principles, analytical tools and future developments for the field of rheumatology.Single-cell proteomic techniques that use elemental (heavy metal) reporter ions increase the number of parameters that can be studied at once in whole tissues. This Review discusses the practical aspects of using such technologies in rheumatic disease research.