Ting-Yuan Liu , Min-Rou Lin , Hsing-Fang Lu , Yu-Chia Chen , Hui-Ju Lin , Wan-Hsuan Chou , Chun-Yu Wei , Poppy Diah Palupi , Chi-Chou Liao , Yen-Ting Chang , Wei-Chiao Chang , Fuu-Jen Tsai
{"title":"Characterization of primary Sjögren's syndrome in the Taiwan Han population through a genome-wide association study and polygenic risk score analysis","authors":"Ting-Yuan Liu , Min-Rou Lin , Hsing-Fang Lu , Yu-Chia Chen , Hui-Ju Lin , Wan-Hsuan Chou , Chun-Yu Wei , Poppy Diah Palupi , Chi-Chou Liao , Yen-Ting Chang , Wei-Chiao Chang , Fuu-Jen Tsai","doi":"10.1016/j.clim.2024.110381","DOIUrl":"10.1016/j.clim.2024.110381","url":null,"abstract":"<div><h3>Background</h3><div>Sjögren's syndrome (SS) is an autoimmune disorder that primarily affects the exocrine glands, leading to dryness of mucous membranes and systemic manifestations. This study aimed to identify genetic markers associated with primary SS (pSS) in the Taiwan Han population through a hospital-based genome-wide association study (GWAS) and polygenic risk score (PRS) analysis, addressing the lack of genetic research.</div></div><div><h3>Results</h3><div>This study included 11,390 patients diagnosed with pSS and 113,900 controls. GWAS identified one known locus and eight novel loci. Known HLA alleles, including HLA-DRB1*15:01 and HLA-DQA1*03:01, were successfully replicated in a consistent effect direction. PRS analysis revealed that several autoimmune diseases share similar genetic backgrounds with pSS, including rheumatoid arthritis and systemic lupus erythematosus.</div></div><div><h3>Conclusion</h3><div>This study represents the largest cohort to date on the genetics of pSS in the Taiwan Han population. Our findings provide valuable insights into the pathogenesis of pSS and emphasize the comorbidities associated with it as an autoimmune disease.</div></div>","PeriodicalId":10392,"journal":{"name":"Clinical immunology","volume":"269 ","pages":"Article 110381"},"PeriodicalIF":4.5,"publicationDate":"2024-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142496321","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}
Fatma Betul Oktelik , Muyun Wang , Sevgi Keles , Hatice Eke Gungor , Murat Cansever , Salim Can , Elif Karakoc-Aydiner , Safa Baris , Klaus Schmitz-Abe , Mehdi Benamar , Talal A. Chatila
{"title":"DOCK8 deficiency due to a deep intronic variant in two kindreds with hyper-IgE syndrome","authors":"Fatma Betul Oktelik , Muyun Wang , Sevgi Keles , Hatice Eke Gungor , Murat Cansever , Salim Can , Elif Karakoc-Aydiner , Safa Baris , Klaus Schmitz-Abe , Mehdi Benamar , Talal A. Chatila","doi":"10.1016/j.clim.2024.110384","DOIUrl":"10.1016/j.clim.2024.110384","url":null,"abstract":"<div><div>Dedicator of cytokinesis 8 (DOCK8) deficiency underlies the majority of cases of patients with autosomal recessive form of the hyper-immunoglobulin E syndrome (HIES). Most <em>DOCK8</em> mutations involve deletions and splice junction mutations that abrogate protein expression. However, a few patients whose presentation is reminiscent of DOCK8 deficiency have no identifiable mutations. Using Whole Exome Sequencing (WES), we identified a deep intronic homozygous <em>DOCK8</em> variant located in intron 36 (c.4626 + 76 A > G) in two unrelated patients with features of HIES that resulted in an in-frame 75 base pair intronic sequence insertion in <em>DOCK8</em> cDNA, resulting in a premature stop codon (p.S1542ins6Ter). This variant resulted in variable decrease in DOCK8 expression that was associated with impaired T cell receptor-triggered actin polymerization, decreased IL-6-induced STAT3 phosphorylation, reduced expression of the Th17 cell markers CCR6 and IL-17, and higher frequencies of GATA3<sup>+</sup> T cells indicative of Th2 skewing. Our approach extends the reach of WES in identifying disease-related intronic variants. It highlights the role of non-coding mutations in immunodeficiency disorders, including DOCK8 deficiency, and emphasizes the need to explore these mutations in unexplained inborn errors of immunity.</div></div>","PeriodicalId":10392,"journal":{"name":"Clinical immunology","volume":"268 ","pages":"Article 110384"},"PeriodicalIF":4.5,"publicationDate":"2024-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142496322","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}
Francesca Ammoscato , Mohammad Wafa , Justyna Skonieczna , Jonathan Bestwick , Rosemary Monero , Michael Andrews , Stefania De Trane , David Holden , Ashok Adams , Lucia Bianchi , Ben Turner , Monica Marta , Klaus Schmierer , David Baker , Gavin Giovannoni , Sharmilee Gnanapavan
{"title":"Cladribine tablets in relapsing-remitting multiple sclerosis preferentially target B-cells","authors":"Francesca Ammoscato , Mohammad Wafa , Justyna Skonieczna , Jonathan Bestwick , Rosemary Monero , Michael Andrews , Stefania De Trane , David Holden , Ashok Adams , Lucia Bianchi , Ben Turner , Monica Marta , Klaus Schmierer , David Baker , Gavin Giovannoni , Sharmilee Gnanapavan","doi":"10.1016/j.clim.2024.110380","DOIUrl":"10.1016/j.clim.2024.110380","url":null,"abstract":"<div><div>Recent studies demonstrate the efficacy of B cell-targeting therapies in managing multiple sclerosis (MS) activity, emphasizing the critical role of B cells in MS pathogenesis. CladB study aimed to quantify the temporal changes in peripheral immune cells and their activity over 96 weeks of Cladribine tablets (CladT) treatment in relapsing-remitting MS (RRMS).</div><div>Ten participants (3 males, 7 females) had blood samples collected at multiple intervals (Day 0, 1, 5, then weekly for 8 weeks, biweekly for up to 24 weeks, and monthly for up to 96 weeks) for immune cell analysis, compared to a historical alemtuzumab-treated cohort. Paired cerebrospinal fluid (CSF) was also taken for various analyses, alongside clinical and brain imaging assessments.</div><div>CladT depleted memory B cells, while alemtuzumab rapidly depleted T and B cells. The кFLC index decreased from 164.5 ± 227.1 to 71.3 ± 84.7 at 48 weeks (<em>p</em> = 0.002) and to 64.4 ± 67.3 at 96 weeks (<em>p</em> = 0.01). The IgG index dropped from 1.1 ± 0.5 at baseline to 0.8 ± 0.4 at 48 weeks (<em>p</em> = 0.014) and to 0.8 ± 0.3 at 96 weeks (<em>p</em> = 0.02). CSF CXCL-13 decreased from 88.6 ± 68.4 pg/mL to 39.4 ± 35.2 pg/mL at 48 weeks (<em>p</em> = 0.037) and 19.1 ± 11.7 pg/mL at 96 weeks (<em>p</em> = 0.027). CSF NfL levels were reduced at 48 weeks (<em>p</em> = 0.01).</div><div>CladT primarily depletes memory B cells and antibody-secreting cell precursors in RRMS, leading to sustained effects on intrathecal antibody production and total IgG, and a reduction in CSF CXCL-13.</div></div>","PeriodicalId":10392,"journal":{"name":"Clinical immunology","volume":"269 ","pages":"Article 110380"},"PeriodicalIF":4.5,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142459551","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}
Sara Murias Loza , Virginia Courel Del Río , Estefanía Pardo Campo , Laura Calle-Miguel , Gonzalo Anes González , Julián Rodríguez Suárez
{"title":"Successful treatment with tofacitinib in a child diagnosed with ISG15 deficiency","authors":"Sara Murias Loza , Virginia Courel Del Río , Estefanía Pardo Campo , Laura Calle-Miguel , Gonzalo Anes González , Julián Rodríguez Suárez","doi":"10.1016/j.clim.2024.110377","DOIUrl":"10.1016/j.clim.2024.110377","url":null,"abstract":"","PeriodicalId":10392,"journal":{"name":"Clinical immunology","volume":"268 ","pages":"Article 110377"},"PeriodicalIF":4.5,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142459552","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}
Ruiyan Xie , Ka Ho Jason Sher , Sin Yu Cindy Tang , Irene Ya Lin Yam , C.H. Lee , Qiongli Wu , Desmond Yat Hin Yap
{"title":"Dysregulation of neutrophil extracellular traps (NETs)-related genes in the pathogenesis of diabetic kidney disease - Results from bioinformatics analysis and translational studies","authors":"Ruiyan Xie , Ka Ho Jason Sher , Sin Yu Cindy Tang , Irene Ya Lin Yam , C.H. Lee , Qiongli Wu , Desmond Yat Hin Yap","doi":"10.1016/j.clim.2024.110379","DOIUrl":"10.1016/j.clim.2024.110379","url":null,"abstract":"<div><div>The role of Neutrophil extracellular traps (NETs) in the immunopathogenesis of Diabetic Kidney Disease (DKD) remains elusive. We used a machine learning approach to identify differentially expressed genes (DEGs) associated with NETs in human DKD kidney biopsy datasets and validated the results using single-nucleus RNA sequencing datasets. The expressions of these candidate genes and related cytokines were verified in blood obtained from DKD patients. Three NETs-associated genes (ITGAM, ITGB2 and TLR7) were identified, which all showed significant upregulation in both glomerular and tubulointerstitial compartments in human DKD kidneys. DKD patients showed significantly higher number of activated neutrophils with increased ITGAM and ITGB2 expression, higher serum IL-6 but lower IL-10, compared to healthy controls (p all <0.01). This study suggests that dysregulation of NETs-associated genes ITGAM and ITGB2 are related to the pathogenesis of DKD, and may serve as novel diagnostic markers and therapeutic targets in DKD.</div></div>","PeriodicalId":10392,"journal":{"name":"Clinical immunology","volume":"268 ","pages":"Article 110379"},"PeriodicalIF":4.5,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142442732","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}
Marina Boudigou , Marie Frutoso , Patrice Hémon , Christelle Le Dantec , Loukas Chatzis , Valérie Devauchelle , Christophe Jamin , Divi Cornec , Jacques-Olivier Pers , Laëtitia Le Pottier , Sophie Hillion
{"title":"Phenotypic, transcriptomic, and spatial characterization of CD45RB+ naïve mature B cells: Implications in Sjögren's disease","authors":"Marina Boudigou , Marie Frutoso , Patrice Hémon , Christelle Le Dantec , Loukas Chatzis , Valérie Devauchelle , Christophe Jamin , Divi Cornec , Jacques-Olivier Pers , Laëtitia Le Pottier , Sophie Hillion","doi":"10.1016/j.clim.2024.110378","DOIUrl":"10.1016/j.clim.2024.110378","url":null,"abstract":"<div><div>The conventional classification of mature B cells overlooks the diversity within IgD<sup>+</sup> CD27<sup>−</sup> naïve B cells. Here, to identify distinct mature naïve B cells, we categorized CD45RB<sup>MEM55-</sup> B cells (NA RB-) and CD45RB<sup>MEM55+</sup> B cells (NA RB+) and explore their function and localization in circulation and tissues under physiological and pathological conditions. NA RB+ B cells, found in secondary lymphoid organs, differentiate into plasmablasts and secrete IgM. In Sjögren's disease, their numbers decrease, and they show over-activation and abnormal migration, suggesting an adaptive disease response. NA RB+ B cells also appear in inflamed salivary glands, indicating involvement in local immune responses. These findings highlight the distinct roles of NA RB+ B cells in health and Sjögren's disease.</div></div>","PeriodicalId":10392,"journal":{"name":"Clinical immunology","volume":"268 ","pages":"Article 110378"},"PeriodicalIF":4.5,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142406198","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}
{"title":"Neudesin regulates dendritic cell function and antitumor CD8+ T cell immunity","authors":"Yuki Masuda, Naoto Kondo, Yoshiaki Nakayama, Ryohei Shimizu, Morichika Konishi","doi":"10.1016/j.clim.2024.110376","DOIUrl":"10.1016/j.clim.2024.110376","url":null,"abstract":"<div><div>Dendritic cells (DCs) are essential for antitumor T-cell responses to immune checkpoint inhibitor therapies. We have previously reported that the secreted protein neudesin suppresses DC function. In contrast, neudesin has been found to be abundantly expressed in human cancers. In this study, we evaluated the role of neudesin in cancer immunity. Cancer-related database analysis revealed that patients with melanoma with low <em>neudesin</em> expression exhibited increased infiltration of DCs and CD8<sup>+</sup> T cells and improved outcomes of checkpoint inhibitor therapy. In mouse tumor models, <em>neudesin</em> deficiency delayed tumor growth and increased the proportions of Type 1 conventional DCs (cDC1s) and tumor antigen-specific CD8<sup>+</sup> T cells in tumors and tumor-infiltrating lymph nodes. <em>Neudesin</em>-deficient antitumor cDC1 vaccine enhanced the systemic immunity more effectively than the wild-type cDC1 vaccine. Overall, our findings highlight the importance of neudesin in cancer immunity, providing a novel target for immunotherapy.</div></div>","PeriodicalId":10392,"journal":{"name":"Clinical immunology","volume":"268 ","pages":"Article 110376"},"PeriodicalIF":4.5,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142380190","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}
Emil E. Vorsteveld , Caspar I. Van der Made , Sanne P. Smeekens , Janneke H. Schuurs-Hoeijmakers , Galuh Astuti , Heleen Diepstra , Christian Gilissen , Evelien Hoenselaar , Alice Janssen , Kees van Roozendaal , Jettie Sikkema-van Engelen , Wouter Steyaert , Marjan M. Weiss , Helger G. Yntema , Tuomo Mantere , Mofareh S. AlZahrani , Koen van Aerde , Beata Derfalvi , Eissa Ali Faqeih , Stefanie S.V. Henriet , Alexander Hoischen
{"title":"Clinical exome sequencing data from patients with inborn errors of immunity: Cohort level diagnostic yield and the benefit of systematic reanalysis","authors":"Emil E. Vorsteveld , Caspar I. Van der Made , Sanne P. Smeekens , Janneke H. Schuurs-Hoeijmakers , Galuh Astuti , Heleen Diepstra , Christian Gilissen , Evelien Hoenselaar , Alice Janssen , Kees van Roozendaal , Jettie Sikkema-van Engelen , Wouter Steyaert , Marjan M. Weiss , Helger G. Yntema , Tuomo Mantere , Mofareh S. AlZahrani , Koen van Aerde , Beata Derfalvi , Eissa Ali Faqeih , Stefanie S.V. Henriet , Alexander Hoischen","doi":"10.1016/j.clim.2024.110375","DOIUrl":"10.1016/j.clim.2024.110375","url":null,"abstract":"<div><div>While next generation sequencing has expanded the scientific understanding of Inborn Errors of Immunity (IEI), the clinical use and re-use of exome sequencing is still emerging. We revisited clinical exome data from 1300 IEI patients using an updated <em>in silico</em> IEI gene panel. Variants were classified and curated through expert review. The molecular diagnostic yield after standard exome analysis was 11.8 %. Through systematic reanalysis, we identified variants of interest in 5.2 % of undiagnosed patients, with 76.7 % being (candidate) disease-causing, providing a (candidate) diagnosis in 15.2 % of our cohort. We find a 1.7 percentage point increase in conclusive molecular diagnoses. We find a high degree of actionability in patients with a genetic diagnosis (76.4 %). Despite the modest absolute diagnostic gain, these data support the benefit of iterative exome reanalysis in IEI patients, conveying the notion that our current understanding of genes and variants involved in IEI is by far not saturated.</div></div>","PeriodicalId":10392,"journal":{"name":"Clinical immunology","volume":"268 ","pages":"Article 110375"},"PeriodicalIF":4.5,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142380189","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":"Anti-interferon gamma-inducible protein 16 antibodies: Identification of a novel autoantigen in idiopathic interstitial pneumonia and its clinical characteristics based on a multicenter cohort study","authors":"Tsuneo Sasai , Ran Nakashima , Tomohiro Handa , Yasuhiko Yamano , Yasuhiro Kondo , Shogo Matsuda , Takuya Kotani , Hiromi Tomioka , Ryo Tachikawa , Keisuke Tomii , Kiminobu Tanizawa , Yasuhiro Nohda , Toshiaki Kogame , Mirei Shirakashi , Ryosuke Hiwa , Hideaki Tsuji , Shuji Akizuki , Hajime Yoshifuji , Tsuneyo Mimori , Kenji Kabashima , Akio Morinobu","doi":"10.1016/j.clim.2024.110372","DOIUrl":"10.1016/j.clim.2024.110372","url":null,"abstract":"<div><div>Autoantibodies are detected in idiopathic interstitial pneumonias (IIPs) without a clear connective tissue disease diagnosis, and their clinical significance is unclear. This study aimed to identify a novel autoantibody in IIPs. We screened 295 IIP patients using a <sup>35</sup>S-methionine labeled protein immunoprecipitation assay. Candidate autoantigens were identified via protein array and confirmed by immunoprecipitation. Six sera from 295 IIP patients immunoprecipitated common tetrameric proteins (100 kDa). The protein array identified interferon gamma-inducible protein 16 (IFI16) as the candidate autoantigen. Patients with anti-IFI16 antibodies received immunosuppressants less frequently. Five-year survival rates were 50 %, 69 %, and 63 % (<em>P</em> = 0.60), and acute exacerbation-free rates were 50 %, 96 %, and 84 % (<em>P</em> = 0.15) for patients with anti-IFI16, anti-aminoacyl tRNA antibodies, and others. Anti-IFI16 is a novel autoantibody in IIPs. Patients with this antibody often receive less immunosuppressive therapy and could have a poor prognosis. Further research is needed to refine patient stratification and management.</div></div>","PeriodicalId":10392,"journal":{"name":"Clinical immunology","volume":"268 ","pages":"Article 110372"},"PeriodicalIF":4.5,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142364686","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}