Pediatric Rheumatology最新文献

{"title":"Genetic association of antinuclear antibodies with HLA in JIA patients: a Swedish cohort study.","authors":"Raya Saleh, Erik Sundberg, Mia Olsson, Katarina Tengvall, Lars Alfredsson, Ingrid Kockum, Leonid Padyukov, Helena Erlandsson Harris","doi":"10.1186/s12969-024-01017-8","DOIUrl":"10.1186/s12969-024-01017-8","url":null,"abstract":"<p><strong>Background: </strong>Juvenile Idiopathic Arthritis (JIA) is a complex autoimmune disease and the most common chronic rheumatological disease affecting children under the age of 16. The etiology of JIA remains poorly understood, but evidence suggests a significant genetic predisposition.</p><p><strong>Methods: </strong>We analyzed a Swedish cohort of 329 JIA patients and 728 healthy adult controls using the Illumina OmniExpress array for genotyping. HLA alleles were imputed from GWAS data using the SNP2HLA algorithm.</p><p><strong>Results: </strong>Case-control analysis yielded 12 SNPs with genome-wide significant association to JIA, all located on chromosome 6 within the MHC class II gene region. Notably, the top SNP (rs28421666) was located adjacent to HLA-DQA1 and HLA-DRB1. HLA-DRB1*08:01, HLA-DQA1*04:01, and HLA-DQB1*04:02 were the haplotypes most strongly associated with an increased risk of JIA in the overall cohort. When analyzing disease specific subtypes, these alleles were associated with oligoarthritis and RF-negative polyarthritis. Within the complex linkage disequilibrium of the HLA-DRB1-DQA1-DQB1 haplotype, our analysis suggests that HLA-DRB1*08 might be the primary allele linked to JIA susceptibility. The HLA-DRB1*11 allele group was also independently associated with JIA and specifically enriched in the oligoarthritis patient group. Additionally, our study revealed a significant correlation between antinuclear antibody (ANA) positivity and specific HLA alleles. The ANA-positive JIA group showed stronger associations with the HLA-DRB1-DQA1-DQB1 haplotype, HLA-DRB1*11, and HLA-DPB1*02, suggesting a potential connection between genetic factors and ANA production in JIA. Furthermore, logistic regression analysis reaffirmed the effects of HLA alleles, female sex, and lower age at onset on ANA positivity.</p><p><strong>Conclusions: </strong>This study identified distinct genetic associations between HLA alleles and JIA subtypes, particularly in ANA-positive patients. These findings contribute to a better understanding of the genetic basis of JIA and provide insights into the genetic control of autoantibody production in ANA-positive JIA patients. This may inform future classification and personalized treatment approaches for JIA, ultimately improving patient outcomes and management of this disease.</p>","PeriodicalId":54630,"journal":{"name":"Pediatric Rheumatology","volume":"22 1","pages":"79"},"PeriodicalIF":2.8,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11348572/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142074595","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}

{"title":"Reliability of a generative artificial intelligence tool for pediatric familial Mediterranean fever: insights from a multicentre expert survey.","authors":"Saverio La Bella, Marina Attanasi, Annamaria Porreca, Armando Di Ludovico, Maria Cristina Maggio, Romina Gallizzi, Francesco La Torre, Donato Rigante, Francesca Soscia, Francesca Ardenti Morini, Antonella Insalaco, Marco Francesco Natale, Francesco Chiarelli, Gabriele Simonini, Fabrizio De Benedetti, Marco Gattorno, Luciana Breda","doi":"10.1186/s12969-024-01011-0","DOIUrl":"10.1186/s12969-024-01011-0","url":null,"abstract":"<p><strong>Background: </strong>Artificial intelligence (AI) has become a popular tool for clinical and research use in the medical field. The aim of this study was to evaluate the accuracy and reliability of a generative AI tool on pediatric familial Mediterranean fever (FMF).</p><p><strong>Methods: </strong>Fifteen questions repeated thrice on pediatric FMF were prompted to the popular generative AI tool Microsoft Copilot with Chat-GPT 4.0. Nine pediatric rheumatology experts rated response accuracy with a blinded mechanism using a Likert-like scale with values from 1 to 5.</p><p><strong>Results: </strong>Median values for overall responses at the initial assessment ranged from 2.00 to 5.00. During the second assessment, median values spanned from 2.00 to 4.00, while for the third assessment, they ranged from 3.00 to 4.00. Intra-rater variability showed poor to moderate agreement (intraclass correlation coefficient range: -0.151 to 0.534). A diminishing level of agreement among experts over time was documented, as highlighted by Krippendorff's alpha coefficient values, ranging from 0.136 (at the first response) to 0.132 (at the second response) to 0.089 (at the third response). Lastly, experts displayed varying levels of trust in AI pre- and post-survey.</p><p><strong>Conclusions: </strong>AI has promising implications in pediatric rheumatology, including early diagnosis and management optimization, but challenges persist due to uncertain information reliability and the lack of expert validation. Our survey revealed considerable inaccuracies and incompleteness in AI-generated responses regarding FMF, with poor intra- and extra-rater reliability. Human validation remains crucial in managing AI-generated medical information.</p>","PeriodicalId":54630,"journal":{"name":"Pediatric Rheumatology","volume":"22 1","pages":"78"},"PeriodicalIF":2.8,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11342667/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142047495","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}

{"title":"Endpoints and outcomes for localized scleroderma/morphea: a scoping literature review.","authors":"Alexy Hernandez, Leslie Zapata Leiva, Maria Mutka, Kathryn S Torok, Leila Ledbetter, Christina K Zigler","doi":"10.1186/s12969-024-01014-x","DOIUrl":"10.1186/s12969-024-01014-x","url":null,"abstract":"<p><strong>Background: </strong>Current treatment for localized scleroderma (LS) has been shown to halt disease activity, but little is still known about patient experiences with these treatments, nor is there consensus about optimal measurement strategies for future clinical trials.</p><p><strong>Objective: </strong>Conduct a scoping review of the literature for the types of outcomes and measures (i.e. clinician-, patient-, and caregiver-reported) utilized in published treatment studies of LS.</p><p><strong>Methods: </strong>Online databases were searched for articles related to the evaluation of treatment efficacy in LS with a special focus on pediatrics.</p><p><strong>Results: </strong>Of the 168 studies, the most common outcomes used were cutaneous disease activity and damage measured via clinician-reported assessments. The most frequently cited measure was the Localized Scleroderma Cutaneous Assessment Tool (LoSCAT). Few patient-reported outcome measures (PROMs) were used.</p><p><strong>Limitations: </strong>Some studies only vaguely reported the measures utilized, and the review yielded a low number of clinical trials.</p><p><strong>Conclusion: </strong>In addition to evaluating disease activity with clinician-reported measures, the field could obtain critical knowledge on the patient experience by including high-quality PROMs of symptoms and functioning. More clinical trials using a variety of outcomes and measures are necessary to determine the most suitable course of treatment for LS patients.</p>","PeriodicalId":54630,"journal":{"name":"Pediatric Rheumatology","volume":"22 1","pages":"77"},"PeriodicalIF":2.8,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11337887/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142019515","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}

{"title":"A novel scoring system based on sIL-2R for predicting IVIG resistance in Chinese children with KD.","authors":"Yuan-Yuan Zeng, Su-Yue Zhu, Kang-Kang Xu, Lian-Fu Ji, Yu-Qi Wang, Yi Chen, Feng Chen, Shi-Wei Yang","doi":"10.1186/s12969-024-01015-w","DOIUrl":"10.1186/s12969-024-01015-w","url":null,"abstract":"<p><strong>Objective: </strong>This study aimed to develop a novel scoring system utilizing circulating interleukin (IL) levels to predict resistance to intravenous immunoglobulin (IVIG) in Chinese patients with Kawasaki disease (KD). We further compared this scoring system against six previously established scoring methods to evaluate its predictive performance.</p><p><strong>Methods: </strong>A retrospective analysis was conducted on KD patients who were treated at the cardiovascular medical ward of our institution from January 2020 to December 2022. Six scoring systems (Egami, Formosa, Harada, Kobayashi, Lan and Yang) were analyzed, and a new scoring system was developed based on our data.</p><p><strong>Results: </strong>In our study, 521 KD patients were recruited, 42 of whom (8.06%) were identified as resistant to IVIG. Our study indicated that IVIG-resistant KD patients were at an increased risk for the development of coronary arterial lesions (CALs) (P = 0.001). The evaluation of IVIG resistance using various scoring systems revealed differing levels of sensitivity and specificity, as follows: Egami (38.10% and 88.52%), Formosa (95.24% and 41.13%), Harada (78.57% and 43.22%), Kobayashi (66.67% and 74.95%), Lan (66.67% and 73.49%), and Yang (69.05% and 77.24%). Our novel scoring system utilizing sIL-2R demonstrated the highest sensitivity and specificity of 69.29% and 83.91%, respectively, and calibration curves indicated a favorable predictive accuracy of the model.</p><p><strong>Conclusion: </strong>Our newly developed scoring system utilizing sIL-2R demonstrated superior predictive performance in identifying IVIG resistance among Chinese patients with KD.</p>","PeriodicalId":54630,"journal":{"name":"Pediatric Rheumatology","volume":"22 1","pages":"76"},"PeriodicalIF":2.8,"publicationDate":"2024-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11330593/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142001330","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}

{"title":"Handwriting speed in juvenile idiopathic arthritis using the detailed assessment of speed of handwriting.","authors":"C A Marchak, S James, I Davidson, J Brown, K Houghton","doi":"10.1186/s12969-024-01013-y","DOIUrl":"10.1186/s12969-024-01013-y","url":null,"abstract":"<p><strong>Background: </strong>Handwriting is a commonly reported functional limitation for children with juvenile idiopathic arthritis (JIA). The aim of this study was to evaluate handwriting in children with JIA.</p><p><strong>Findings: </strong>Twelve children (mean age 13.0 years, SD = 1.9; range 9.1 to 15.6 years) with JIA completed the Detailed Assessment of Speed of Handwriting (DASH). The presence of hand and wrist arthritis, grip strength, disability, pain, and quality of life (QOL) was also assessed. The mean DASH score was 34.5th percentile (SD = 22.5). Eight (75%) scored below the 50th centile. DASH scores were negatively associated with grip strength (r = -0.31).</p><p><strong>Conclusions: </strong>Handwriting difficulties are common in children with JIA. Handwriting assessment may be helpful to direct treatments, and advocate for support and accommodations in school.</p>","PeriodicalId":54630,"journal":{"name":"Pediatric Rheumatology","volume":"22 1","pages":"75"},"PeriodicalIF":2.8,"publicationDate":"2024-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11325831/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141989576","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}

{"title":"Uncovering the hidden socioeconomic impact of juvenile idiopathic arthritis and paving the way for other rare childhood diseases: an international, cross-disciplinary, patient-centered approach (PAVE Consortium).","authors":"Deborah A Marshall, Brittany Gerber, Gillian R Currie, Jordi Antón, Lien De Somer, Michelle Dey, Tsipi Egert, Yona Egert, Lia Henan, Jens Klotsche, Laura Martinez Mifsut, Kirsten Minden, Christophe Normand, David Porte, Rotraud K Saurenmann, Joost F Swart, Yosef Uziel, Jennifer Wilson, Carine Wouters, Amit Ziv, Susanne M Benseler","doi":"10.1186/s12969-024-01012-z","DOIUrl":"10.1186/s12969-024-01012-z","url":null,"abstract":"<p><strong>Background: </strong>Juvenile idiopathic arthritis (JIA) refers to a heterogeneous group of rheumatic conditions in children. Novel drugs have greatly improved disease outcomes; however, outcomes are impacted by limited awareness of the importance of early diagnosis and adequate treatment, and by differences in access across health systems. As a result, patients with JIA continue to be at risk for short- and long-term morbidity, as well as impacts on virtually all aspects of life of the child and family.</p><p><strong>Main body: </strong>Literature on the socioeconomic burden of JIA is largely focused on healthcare costs, and the impact of JIA on patients, families, and communities is not well understood. High quality evidence on the impact of JIA is needed to ensure that patients are receiving necessary support, timely diagnostics, and adequate treatment, and to inform decision making and resource allocation. This commentary introduces the European Joint Programme on Rare Diseases: Producing an Arthritis Value Framework with Economic Evidence: Paving the Way for Rare Childhood Diseases (PAVE) project, which will co-develop a patient-informed value framework to measure the impact of JIA on individuals and on society. With a patient-centered approach, fundamental to PAVE is the involvement of three patient advocacy organizations from Canada, Israel, and Europe, as active research partners co-designing all project phases and ensuring robust patient and family engagement. The framework will build on the findings of projects from six countries: Canada, Germany, Switzerland, Spain, Israel, and Belgium, exploring costs, outcomes (health, well-being), and unmet needs (uveitis, mental health, equity).</p><p><strong>Conclusion: </strong>This unique international collaboration will combine evidence on costs (from family to societal), outcomes (clinical, patient and family outcomes), and unmet needs, to co-design and build a framework with patients and families to capture the full impact of JIA. The framework will support the development of high-quality evidence, encompassing economic and clinical considerations, unmet needs, and patient perspectives, to inform equitable resource allocation, health system planning, and quality of care better aligned with the needs of children with JIA, their families, and communities. Knowledge gained from this novel approach may pave the way forward to be applied more broadly to other rare childhood diseases.</p>","PeriodicalId":54630,"journal":{"name":"Pediatric Rheumatology","volume":"22 1","pages":"74"},"PeriodicalIF":2.8,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11312924/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141908375","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}

{"title":"CAR T cell therapy for refractory pediatric systemic lupus erythematosus: a new era of hope?","authors":"Ivana Stojkic, Lauren Harper, Samantha Coss, Mahmoud Kallash, Kyla Driest, Margaret Lamb, Stacy P Ardoin, Shoghik Akoghlanian","doi":"10.1186/s12969-024-00990-4","DOIUrl":"10.1186/s12969-024-00990-4","url":null,"abstract":"<p><p>Systemic lupus erythematosus (SLE) is a chronic autoimmune condition that can affect multiple organ systems and is heterogenous in its presentation and response to therapy. When diagnosed in childhood, SLE is associated with increased morbidity and mortality compared to adult SLE, often requiring substantial immunosuppression with the risk of significant side effects. There remains a significant unmet need for new therapies that can improve disease control and reduce glucocorticoid and other toxic medication exposure for patients with severe or refractory disease. The pathogenesis of SLE involves B cell dysregulation and autoantibody production, which are a hallmark of the disease. Currently approved B cell directed therapies often result in incomplete B cell depletion and may not target long-lived plasma cells responsible for SLE autoantibodies. It is hypothesized that by persistently eliminating both B cells and plasmablasts, CAR T therapy can halt autoimmunity and prevent organ damage in patient's refractory to current B cell-depleting treatments. Herein we summarize the current preclinical and clinical data utilizing CAR T cells for SLE and discuss the future of this treatment modality for lupus.</p>","PeriodicalId":54630,"journal":{"name":"Pediatric Rheumatology","volume":"22 1","pages":"72"},"PeriodicalIF":2.8,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11308704/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141908373","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}

{"title":"Increased vascular deposition of oxidized LDL in untreated juvenile dermatomyositis.","authors":"Jacob C Spitznagle, Akadia Kacha-Ochana, Joan M Cook-Mills, Gabrielle A Morgan, Lauren M Pachman","doi":"10.1186/s12969-024-01001-2","DOIUrl":"10.1186/s12969-024-01001-2","url":null,"abstract":"<p><strong>Background: </strong>Juvenile dermatomyositis (JDM) is a systemic vasculopathy associated with metabolic derangements and possible increased risk for premature atherosclerosis. Oxidation of low-density lipoprotein (LDL) in the endothelium is an early step in atherosclerotic plaque formation. It is not known if oxidized LDL is altered in children with untreated JDM. The deposition of oxidized LDL in the vasculature of muscle biopsies (MBx) from patients with untreated JDM and pediatric controls was assessed.</p><p><strong>Findings: </strong>Frozen tissue sections of MRI-directed MBx from 20 female children with untreated JDM and 5 female controls were stained with DAPI and fluorescently labeled antibodies against von Willebrand factor (vWF) and LDL oxidized by copper (oxLDL). Blood vessels were identified by positive vWF staining, and total fluorescence of oxLDL within the vessel walls was measured. Children with untreated JDM had increased deposition of oxLDL in the walls of muscle vasculature compared to healthy children (difference in means ± SEM = 19.86 ± 8.195, p = 0.03). Within the JDM cohort, there was a trend towards increased oxLDL deposition with longer duration of untreated disease (r = 0.43, p = 0.06). There was no significant correlation found between oxLDL deposition and markers of acute JDM disease activity including disease activity scores or muscle enzymes.</p><p><strong>Conclusions: </strong>This study found increased deposition of oxLDL within blood vessels of children with untreated JDM supporting the concern that these children are at increased risk for premature atherosclerosis from chronic exposure to vascular oxLDL. This study highlights the importance of early diagnosis and treatment initiation to ameliorate cardiovascular damage.</p>","PeriodicalId":54630,"journal":{"name":"Pediatric Rheumatology","volume":"22 1","pages":"73"},"PeriodicalIF":2.8,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11308466/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141908374","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}

{"title":"Exploring the association between serum Vitamin D levels and the development of coronary artery lesions in Kawasaki disease - a systematic review.","authors":"Zahra Amirsardari, Fatemeh Amirsardari, Erfan Kohansal, Amir Ghaffari Jolfay, Maziar Gholampour Dehaki, Vahid Ziaee","doi":"10.1186/s12969-024-01010-1","DOIUrl":"10.1186/s12969-024-01010-1","url":null,"abstract":"<p><strong>Background: </strong>Kawasaki Disease (KD) involves arterial inflammation, primarily affecting the coronary arteries and leading to coronary artery lesions. Recent advancements in understanding the immunomodulatory roles of vitamin D have prompted investigations into the potential correlation between serum vitamin D levels and the risk of coronary artery lesions (CAL) in KD. This review aims to explore this association.</p><p><strong>Methods: </strong>A systematic search utilizing relevant keywords related to Kawasaki disease and coronary artery lesions was conducted across four databases (PubMed, Embase, Scopus, and Web of Science). The quality of the incorporated studies was assessed utilizing the Newcastle-Ottawa Scale. The study protocol is registered in PROSPERO under the registry code CRD42024493204.</p><p><strong>Results: </strong>In a review of five studies involving 442 KD patients and 594 healthy controls, KD patients generally had lower serum vitamin D levels compared to controls, with mixed findings on the association with coronary artery lesions and IVIG resistance. While three studies supported lower vitamin D in KD, one showed no significant difference. Regarding CAL, one study found lower vitamin D, another found higher levels associated with CAL, and two found no significant difference.</p><p><strong>Conclusions: </strong>Overall, the evidence is inconclusive, but there's a trend suggesting potential benefits of sufficient vitamin D levels in Kawasaki disease rather than evidence refuting any association with clinical outcomes.</p>","PeriodicalId":54630,"journal":{"name":"Pediatric Rheumatology","volume":"22 1","pages":"71"},"PeriodicalIF":2.8,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11299257/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141894893","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}

{"title":"Assay for interferon gamma release as a novel marker in pediatric patients with systemic lupus erythematosus","authors":"Song Zhang, Xue Li, Huishan Chen, Xianfei Gao, Zhe Cai, Huasong Zeng","doi":"10.1186/s12969-024-01008-9","DOIUrl":"https://doi.org/10.1186/s12969-024-01008-9","url":null,"abstract":"The interferon-gamma (IFN-γ) release assay (IGRA) is an important laboratory diagnosis for latent Mycobacterium tuberculosis (TB) infection. The TB-IGRA measures the release of IFN-γ from peripheral blood cells, who are exposed to TB antigen (Ag), mitogen (MT), or negative/nil control (NL) in vitro. While, an exceptional higher TB Ag-NL level will reflect an elevation of peripheral lymphocytes released IFN-γ in a same condition. Therefore, we found that the elevated levels of TB Ag-NL could become a new biomarker for the diagnosis and treatment of pediatric systemic lupus erythematosus (SLE) patients. We have analyzed the clinical data of 776 children who are underwent TB-IGRA testing in the Department of Allergy and Rheumatology of Guangzhou Women and Children’s Medical Center from 2018 to 2020. To investigate the association between TB Ag-NL and SLE, we have analyzed the clinical data of 47 SLE patients and TB Ag-NL testing results, and then evaluated the association between TB Ag-NL and SLE disease activity. The TB Ag-NL levels were significantly higher in patients with active SLE than those in inactive SLE (p = 0.0002). The TB Ag-NL levels were positively correlated with the SLE disease activity index (SLEDAI) and laboratory diagnosis parameters. The mean value of TB Ag-NL in SLE patients (0.04191 ± 0.07955, IU/mL) were significantly higher than those in patients with juvenile dermatomyositis (JDM) (0.0158 ± 0.0337, IU/mL, p = 0.036), juvenile idiopathic arthritis (JIA) (0.0162 ± 0.0388, IU/mL, p = 0.001), and healthy controls (HC) (0.0001 ± 0.0027, IU/mL, p = 0.0003). Therefore, the elevated TB Ag-NL levels could serve as a potential diagnostic biomarker of SLE, especially for the active SLE. The detection of IFN-γ release levels by the TB-IGRA may be useful to assess SLE disease activity in pediatric patients with active SLE. Spontaneous IFN-γ release is associated with Systemic lupus erythematosus in children. IFN-γ-releasing potential, as measured by the mycobacterium tuberculosis IFN-c release assay, associates with Systemic lupus erythematosus activity in children . IFN-γ release assays may offer a novel, blood-based approach to assessing SLE disease activity in children.","PeriodicalId":54630,"journal":{"name":"Pediatric Rheumatology","volume":"13 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141867750","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}