{"title":"Rare Turner syndrome and lupus coexistence with insights from DNA methylation patterns","authors":"Gülşah Kavrul Kayaalp , Desiré Casares-Marfil , Sezgin Şahin , Özgür Kasapçopur , Betül Sözeri , Nuray Aktay Ayaz , Amr H. Sawalha","doi":"10.1016/j.clim.2024.110310","DOIUrl":"10.1016/j.clim.2024.110310","url":null,"abstract":"<div><p>Systemic lupus erythematosus (SLE or lupus) is a complex autoimmune disease that can affect multiple organs. While the exact disease etiology remains incompletely understood, there is a suggested influence of X-chromosome dosage in the pathogenesis of lupus. Here, we report a rare case of a female patient diagnosed with mosaic Turner syndrome and subsequently presenting with juvenile-onset SLE. DNA methylation patterns were analyzed in this patient and compared with age-matched female SLE controls, revealing higher methylation levels in interferon-regulated genes previously shown to be hypomethylated in SLE. These data provide a potential link between a gene-dose effect from the X-chromosome and the lupus-defining epigenotype. We hypothesize that the attenuated demethylation in interferon-regulated genes might provide a protective effect explaining the rarity of SLE in Turner syndrome.</p></div>","PeriodicalId":10392,"journal":{"name":"Clinical immunology","volume":"266 ","pages":"Article 110310"},"PeriodicalIF":4.5,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1521661624004194/pdfft?md5=22bca384a0e1a66de9ab61fc2624456e&pid=1-s2.0-S1521661624004194-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141619500","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}
Yan Lu , Wu Zhu , Guan Xiong Zhang , Jun Chen Chen , Qiao Lin Wang , Man Yun Mao , Si Chun Deng , Li Ping Jin , Hong Liu , Ye Hong Kuang
{"title":"Adenosine A2A receptor activation regulates the M1 macrophages activation to initiate innate and adaptive immunity in psoriasis","authors":"Yan Lu , Wu Zhu , Guan Xiong Zhang , Jun Chen Chen , Qiao Lin Wang , Man Yun Mao , Si Chun Deng , Li Ping Jin , Hong Liu , Ye Hong Kuang","doi":"10.1016/j.clim.2024.110309","DOIUrl":"10.1016/j.clim.2024.110309","url":null,"abstract":"<div><p>Psoriasis is a common inflammatory systemic disease characterized by pro-inflammatory macrophages activation (M1 macrophage) infiltrated in the dermal layer. How M1 macrophage contributes to psoriasis remains unknown. In this study, we found that adenosine A2A receptor (A2AR) agonist CGS 21680 HCl alleviated the imiquimod (IMQ) and mouse IL-23 Protein (rmIL-23)-induced psoriasis inflammation through reducing infiltration of M1. Conversely, Adora2a deletion in mice exacerbated psoriasis-like phenotype. Mechanistically, A2AR activation inhibited M1 macrophage activation via the NF-κB-KRT16 pathway to reduce the secretion of CXCL10/11 and inhibit Th1/17 differentiation. Notably, the KRT16 expression was first found in M1 macrophage in our study, not only in keratinocytes (KCs). CXCL10/11 are first identified as primarily derived from macrophages and dendritic cells (DCs) rather than KCs in psoriasis using single cell RNA sequencing (scRNA-Seq). In total, the study emphasizes the importance of M1 as an innate immune cell in pathogenesis of psoriasis.</p></div>","PeriodicalId":10392,"journal":{"name":"Clinical immunology","volume":"266 ","pages":"Article 110309"},"PeriodicalIF":4.5,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141603325","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}
Ruolin Li , Yunjie Xiong , Linqiang Ma , Chuan Peng , Shuangxin Qi , Rufei Gao , Ping Wang , Fengzeng Li , Junlong Li , Qifu Li , Aijun Chen
{"title":"Neutrophil extracellular traps promote macrophage inflammation in psoriasis","authors":"Ruolin Li , Yunjie Xiong , Linqiang Ma , Chuan Peng , Shuangxin Qi , Rufei Gao , Ping Wang , Fengzeng Li , Junlong Li , Qifu Li , Aijun Chen","doi":"10.1016/j.clim.2024.110308","DOIUrl":"10.1016/j.clim.2024.110308","url":null,"abstract":"<div><p>Psoriasis is a chronic inflammatory skin disease connected with immune dysregulation. Macrophages are key inflammatory cells in psoriasis but the specific mechanism of their activation is not fully understood. Neutrophil extracellular traps (NETs) have been shown to regulate macrophage function. Here, we found that NET deposition was increased in psoriasis lesions. Peptidylarginine deaminase 4 (PAD4, a key enzyme for NET formation) deficiency attenuated skin lesions and inflammation in an imiquimod-induced psoriatic mouse model. Furthermore, the STING signaling pathway was markedly activated in psoriasis and abolished by PAD4 deficiency. PAD4-deficient mice treated with the STING agonist DMXAA exhibited more severe symptoms and inflammation than control mice. Mechanistically, the STING inhibitor C-176 inhibited NET-induced macrophage inflammation and further inhibited the proliferation of HaCaT cells. Our findings suggest an important role of NETs in the pathogenesis of psoriasis, and activation of macrophage STING/NF-κB signaling pathway might involve in NETs related psoriasis.</p></div>","PeriodicalId":10392,"journal":{"name":"Clinical immunology","volume":"266 ","pages":"Article 110308"},"PeriodicalIF":4.5,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141603327","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":"Necroptosis and autoimmunity","authors":"Lin Peng","doi":"10.1016/j.clim.2024.110313","DOIUrl":"10.1016/j.clim.2024.110313","url":null,"abstract":"<div><p>Autoimmunity is a normal physiological state that requires immunological homeostasis and surveillance, whereas necroptosis is a type of inflammatory cell death. When necroptosis occurs, various immune system cells must perform their appropriate duties to preserve immunological homeostasis, whether the consequence is expanding or limiting the inflammatory response and the pathological condition is cleared or progresses to the autoimmune disease stage. This article discusses necroptosis based on RIP homotypic interaction motif (RHIM) interaction under various physiological and pathological situations, with the RIPK1-RIPK3-MLKL necrosome serving as the regulatory core. In addition, the cell biology of necroptosis involved in autoimmunity and its application in autoimmune diseases were also reviewed.</p></div>","PeriodicalId":10392,"journal":{"name":"Clinical immunology","volume":"266 ","pages":"Article 110313"},"PeriodicalIF":4.5,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141603326","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":"Acute kidney injury following chimeric antigen receptor T-cell therapy: Epidemiology, mechanism and prognosis","authors":"","doi":"10.1016/j.clim.2024.110311","DOIUrl":"10.1016/j.clim.2024.110311","url":null,"abstract":"<div><p>Chimeric antigen receptor T cell (CAR-T) therapy is a promising treatment for hematologic tumors, and adverse events of acute kidney injury (AKI) have been reported. However, its incidence, clinical characteristics, and prognosis remained unclear. We searched PubMed, EMBASE, and Web of Science for study about AKI after CAR-T therapy, a total of 15 studies, comprising 694 patients, were included. Among the 694 patients, 154 (22%) developed AKI, of which 89 (57.8%) were in stage 1, 59 (38.3%) were in stage 2 or 3, and 6 (3.9%) were not reported. Cytokine release syndrome is considered to be the most common cause of AKI. Of the 154 AKI patients, only 16 (10.4%) received renal replacement therapy, most AKI recovered renal function after symptomatic treatment. Although the occurrence of AKI after CAR-T therapy is rare and mostly mild, active knowledge of its pathogenesis, timely diagnosis and treatment are necessary for clinicians.</p></div>","PeriodicalId":10392,"journal":{"name":"Clinical immunology","volume":"266 ","pages":"Article 110311"},"PeriodicalIF":4.5,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141598785","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}
Benedicte Alary , Pascal Cintas , Corentin Claude , Olivier Dellis , Corinne Thèze , Charles Van Goethem , Mireille Cossée , Martin Krahn , Valérie Delague , Marc Bartoli
{"title":"Store-operated calcium entry dysfunction in CRAC channelopathy: Insights from a novel STIM1 mutation","authors":"Benedicte Alary , Pascal Cintas , Corentin Claude , Olivier Dellis , Corinne Thèze , Charles Van Goethem , Mireille Cossée , Martin Krahn , Valérie Delague , Marc Bartoli","doi":"10.1016/j.clim.2024.110306","DOIUrl":"10.1016/j.clim.2024.110306","url":null,"abstract":"<div><p>Store-operated calcium entry (SOCE) plays a crucial role in maintaining cellular calcium homeostasis. This mechanism involves proteins, such as stromal interaction molecule 1 (STIM1) and ORAI1. Mutations in the genes encoding these proteins, especially STIM1, can lead to various diseases, including CRAC channelopathies associated with severe combined immunodeficiency. Herein, we describe a novel homozygous mutation, NM_003156 c.792-3C > G, in <em>STIM1</em> in a patient with a clinical profile of CRAC channelopathy, including immune system deficiencies and muscle weakness. Functional analyses revealed three distinct spliced forms in the patient cells: wild-type, exon 7 skipping, and intronic retention. Calcium influx analysis revealed impaired SOCE in the patient cells, indicating a loss of STIM1 function. We developed an antisense oligonucleotide treatment that improves <em>STIM1</em> splicing and highlighted its potential as a therapeutic approach. Our findings provide insights into the complex effects of <em>STIM1</em> mutations and shed light on the multifaceted clinical presentation of the patient.</p></div>","PeriodicalId":10392,"journal":{"name":"Clinical immunology","volume":"265 ","pages":"Article 110306"},"PeriodicalIF":4.5,"publicationDate":"2024-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1521661624004157/pdfft?md5=598d2d3cc8fdad3fd207d9ab0d1e7045&pid=1-s2.0-S1521661624004157-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141558267","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}
S. Rischke , S.M.G. Schäfer , A. König , T. Ickelsheimer , M. Köhm , L. Hahnefeld , A. Zaliani , K. Scholich , A. Pinter , G. Geisslinger , F. Behrens , R. Gurke
{"title":"Metabolomic and lipidomic fingerprints in inflammatory skin diseases – Systemic illumination of atopic dermatitis, hidradenitis suppurativa and plaque psoriasis","authors":"S. Rischke , S.M.G. Schäfer , A. König , T. Ickelsheimer , M. Köhm , L. Hahnefeld , A. Zaliani , K. Scholich , A. Pinter , G. Geisslinger , F. Behrens , R. Gurke","doi":"10.1016/j.clim.2024.110305","DOIUrl":"10.1016/j.clim.2024.110305","url":null,"abstract":"<div><p>Auto-inflammatory skin diseases place considerable symptomatic and emotional burden on the affected and put pressure on healthcare expenditures. Although most apparent symptoms manifest on the skin, the systemic inflammation merits a deeper analysis beyond the surface. We set out to identify systemic commonalities, as well as differences in the metabolome and lipidome when comparing between diseases and healthy controls. Lipidomic and metabolomic LC-MS profiling was applied, using plasma samples collected from patients suffering from atopic dermatitis, plaque-type psoriasis or hidradenitis suppurativa or healthy controls. Plasma profiles revealed a notable shift in the non-enzymatic anti-oxidant defense in all three inflammatory disorders, placing cysteine metabolism at the center of potential dysregulation. Lipid network enrichment additionally indicated the disease-specific provision of lipid mediators associated with key roles in inflammation signaling. These findings will help to disentangle the systemic components of autoimmune dermatological diseases, paving the way to individualized therapy and improved prognosis.</p></div>","PeriodicalId":10392,"journal":{"name":"Clinical immunology","volume":"265 ","pages":"Article 110305"},"PeriodicalIF":4.5,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1521661624004145/pdfft?md5=72255d2f3023b416d5ed14820582bb3f&pid=1-s2.0-S1521661624004145-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141554298","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}
Marcelo Afonso , Jitong Sun , Koji Sakuraba , Alexandra Cîrciumaru , Denis Lagutkin , Maša Filipović , Anca I. Catrina , Caroline Grönwall , Aase Hensvold , Bence Réthi
{"title":"Macrophage activation and inflammatory priming by anti-MAA antibodies in rheumatoid arthritis","authors":"Marcelo Afonso , Jitong Sun , Koji Sakuraba , Alexandra Cîrciumaru , Denis Lagutkin , Maša Filipović , Anca I. Catrina , Caroline Grönwall , Aase Hensvold , Bence Réthi","doi":"10.1016/j.clim.2024.110303","DOIUrl":"10.1016/j.clim.2024.110303","url":null,"abstract":"<div><p>We studied the effects of rheumatoid arthritis (RA) autoantibodies that target malondialdehyde-acetaldehyde protein adducts (anti-MAA) on inflammation and macrophage functions. We detected a profound reprogramming of gene expressions and the production of chemokines, such as CCL22 and CCL24, in anti-MAA exposed macrophages. Moreover, anti-MAA pretreatment promoted a more inflammatory cytokine profile upon TLR activation. Although anti-MAA are typically multi-reactive, we observed a prominent clonal diversity in inducing macrophage activation. Anti-MAA antibodies were not arthritogenic in mice, but altered a set of cytokine and growth factor encoding genes in the joints. In individuals at risk of RA anti-MAA IgG levels correlated with circulating inflammatory mediators prior to and at arthritis onset. Certain IgG anti-MAA clones may thus contribute to an inflammatory priming of the joint prior to the onset of systemic inflammation via inducing FcγR-mediated macrophage pre-activation and setting the stage for augmented responses to subsequent inflammatory stimuli.</p></div>","PeriodicalId":10392,"journal":{"name":"Clinical immunology","volume":"265 ","pages":"Article 110303"},"PeriodicalIF":4.5,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1521661624004121/pdfft?md5=c455424ea332b91cc0df91c01f59f5fc&pid=1-s2.0-S1521661624004121-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141537615","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}
Mastura Monif , Richard P. Sequeira , Andrea Muscat , Sian Stuckey , Paul G. Sanfilippo , Viet Minh , Naomi Loftus , Veronica Voo , Katherine Fazzolari , Melinda Moss , Vicki E. Maltby , Ai-Lan Nguyen , Robb Wesselingh , Nabil Seery , Cassie Nesbitt , Josephine Baker , Chris Dwyer , Lisa Taylor , Louise Rath , Anneke Van der Walt , Helmut Butzkueven
{"title":"CLADIN- CLADribine and INnate immune response in multiple sclerosis – A phase IV prospective study","authors":"Mastura Monif , Richard P. Sequeira , Andrea Muscat , Sian Stuckey , Paul G. Sanfilippo , Viet Minh , Naomi Loftus , Veronica Voo , Katherine Fazzolari , Melinda Moss , Vicki E. Maltby , Ai-Lan Nguyen , Robb Wesselingh , Nabil Seery , Cassie Nesbitt , Josephine Baker , Chris Dwyer , Lisa Taylor , Louise Rath , Anneke Van der Walt , Helmut Butzkueven","doi":"10.1016/j.clim.2024.110304","DOIUrl":"10.1016/j.clim.2024.110304","url":null,"abstract":"<div><p>Cladribine (Mavenclad®) is an oral treatment for relapsing remitting MS (RRMS), but its mechanism of action and its effects on innate immune responses in unknown. This study is a prospective Phase IV study of 41 patients with RRMS, and aims to investigate the mechanism of action of cladribine on peripheral monocytes, and its impact on the P2X7 receptor. There was a significant reduction in monocyte count <em>in vivo</em> at week 1 post cladribine administration, and the subset of cells being most impacted were the CD14lo CD16+ ‘non-classical’ monocytes. Of the 14 cytokines measured in serum, CCL2 levels increased at week 1. <em>In vitro</em>, cladrabine induced a reduction in P2X7R pore as well as channel activity. This study demonstrates a novel mechanism of action for cladribine. It calls for studying potential benefits of cladribine in progressive forms of MS and other neurodegenerative diseases where innate immune related inflammation is implicated in disease pathogenesis.</p></div>","PeriodicalId":10392,"journal":{"name":"Clinical immunology","volume":"265 ","pages":"Article 110304"},"PeriodicalIF":4.5,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141533852","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":"Bridging therapy-induced phenotypes and genetic immune dysregulation to study interleukin-2-induced immunotoxicology","authors":"","doi":"10.1016/j.clim.2024.110288","DOIUrl":"10.1016/j.clim.2024.110288","url":null,"abstract":"<div><p>Interleukin-2 (IL-2) holds promise for the treatment of cancer and autoimmune diseases, but its high-dose usage is associated with systemic immunotoxicity. Differential IL-2 receptor (IL-2R) regulation might impact function of cells upon IL-2 stimulation, possibly inducing cellular changes similar to patients with hypomorphic <em>IL2RB</em> mutations, presenting with multiorgan autoimmunity. Here, we show that sustained high-dose IL-2 stimulation of human lymphocytes drastically reduces IL-2Rβ surface expression especially on T cells, resulting in impaired IL-2R signaling which correlates with high IL-2Rα baseline expression. IL-2R signaling in NK cells is maintained. CD4+ T cells, especially regulatory T cells are more broadly affected than CD8+ T cells, consistent with lineage-specific differences in IL-2 responsiveness. Given the resemblance of cellular characteristics of high-dose IL-2-stimulated cells and cells from patients with IL-2Rβ defects, impact of continuous IL-2 stimulation on IL-2R signaling should be considered in the onset of clinical adverse events during IL-2 therapy.</p></div>","PeriodicalId":10392,"journal":{"name":"Clinical immunology","volume":"266 ","pages":"Article 110288"},"PeriodicalIF":4.5,"publicationDate":"2024-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1521661624003978/pdfft?md5=163cd96bd24b7212bfec316b96897c81&pid=1-s2.0-S1521661624003978-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141476098","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}