Pub Date : 2024-08-01Epub Date: 2024-06-04DOI: 10.1007/s12026-024-09494-5
Renan A Pereira, Ellen O Dantas, Jessica Loekmanwidjaja, Juliana T L Mazzucchelli, Carolina S Aranda, Maria E G Serrano, Elisabeth A De La Cruz Córdoba, Liliana Bezrodnik, Ileana Moreira, Janaira F S Ferreira, Vera M Dantas, Valéria S F Sales, Carmen C Fernandez, Maria M S Vilela, Isabela P Motta, Jose Luis Franco, Julio Cesar Orrego Arango, Jesús A Álvarez-Álvarez, Lina Rocío Riaño Cardozo, Julio C Orellana, Antonio Condino-Neto, Cristina M Kokron, Myrthes T Barros, Lorena Regairaz, Diana Cabanillas, Carmen L N Suarez, Nelson A Rosario, Herberto J Chong-Neto, Olga A Takano, Maria I S V Nadaf, Lillian S L Moraes, Fabiola S Tavares, Flaviane Rabelo, Jessica Pino, Wilmer C Calderon, Daniel Mendoza-Quispe, Ekaterini S Goudouris, Virginia Patiño, Cecilia Montenegro, Monica S Souza, Aniela BXCCastelo Branco, Wilma C N Forte, Flavia A A Carvalho, Gesmar Segundo, Marina F A Cheik, Persio Roxo-Junior, Maryanna Peres, Annie M Oliveira, Arnaldo C P Neto, Maria Claudia Ortega-López, Alejandro Lozano, Natalia Andrea Lozano, Leticia H Nieto, Anete S Grumach, Daniele C Costa, Nelma M N Antunes, Victor Nudelman, Camila T M Pereira, Maria D M Martinez, Francisco J R Quiroz, Aristoteles A Cardona, Maria E Nuñez-Nuñez, Jairo A Rodriguez, Célia M Cuellar, Gustavo Vijoditz, Daniélli C Bichuetti-Silva, Carolina C M Prando, Sérgio L Amantéa, Beatriz T Costa-Carvalho
Ataxia-telangiectasia (AT) is a rare genetic disorder leading to neurological defects, telangiectasias, and immunodeficiency. We aimed to study the clinical and immunological features of Latin American patients with AT and analyze factors associated with mortality. Referral centers from 9 Latin American countries participated in this retrospective cohort study, and 218 patients were included. Median (IQR) ages at symptom onset and diagnosis were 1.0 (1.0-2.0) and 5.0 (3.0-8.0) years, respectively. Most patients presented recurrent airway infections, which was significantly associated with IgA deficiency. IgA deficiency was observed in 60.8% of patients and IgG deficiency in 28.6%. T- and B-lymphopenias were also present in most cases. Mean survival was 24.2 years, and Kaplan-Meier 20-year-survival rate was 52.6%, with higher mortality associated with female gender and low IgG levels. These findings suggest that immunologic status should be investigated in all patients with AT.
{"title":"Ataxia-telangiectasia in Latin America: clinical features, immunodeficiency, and mortality in a multicenter study.","authors":"Renan A Pereira, Ellen O Dantas, Jessica Loekmanwidjaja, Juliana T L Mazzucchelli, Carolina S Aranda, Maria E G Serrano, Elisabeth A De La Cruz Córdoba, Liliana Bezrodnik, Ileana Moreira, Janaira F S Ferreira, Vera M Dantas, Valéria S F Sales, Carmen C Fernandez, Maria M S Vilela, Isabela P Motta, Jose Luis Franco, Julio Cesar Orrego Arango, Jesús A Álvarez-Álvarez, Lina Rocío Riaño Cardozo, Julio C Orellana, Antonio Condino-Neto, Cristina M Kokron, Myrthes T Barros, Lorena Regairaz, Diana Cabanillas, Carmen L N Suarez, Nelson A Rosario, Herberto J Chong-Neto, Olga A Takano, Maria I S V Nadaf, Lillian S L Moraes, Fabiola S Tavares, Flaviane Rabelo, Jessica Pino, Wilmer C Calderon, Daniel Mendoza-Quispe, Ekaterini S Goudouris, Virginia Patiño, Cecilia Montenegro, Monica S Souza, Aniela BXCCastelo Branco, Wilma C N Forte, Flavia A A Carvalho, Gesmar Segundo, Marina F A Cheik, Persio Roxo-Junior, Maryanna Peres, Annie M Oliveira, Arnaldo C P Neto, Maria Claudia Ortega-López, Alejandro Lozano, Natalia Andrea Lozano, Leticia H Nieto, Anete S Grumach, Daniele C Costa, Nelma M N Antunes, Victor Nudelman, Camila T M Pereira, Maria D M Martinez, Francisco J R Quiroz, Aristoteles A Cardona, Maria E Nuñez-Nuñez, Jairo A Rodriguez, Célia M Cuellar, Gustavo Vijoditz, Daniélli C Bichuetti-Silva, Carolina C M Prando, Sérgio L Amantéa, Beatriz T Costa-Carvalho","doi":"10.1007/s12026-024-09494-5","DOIUrl":"10.1007/s12026-024-09494-5","url":null,"abstract":"<p><p>Ataxia-telangiectasia (AT) is a rare genetic disorder leading to neurological defects, telangiectasias, and immunodeficiency. We aimed to study the clinical and immunological features of Latin American patients with AT and analyze factors associated with mortality. Referral centers from 9 Latin American countries participated in this retrospective cohort study, and 218 patients were included. Median (IQR) ages at symptom onset and diagnosis were 1.0 (1.0-2.0) and 5.0 (3.0-8.0) years, respectively. Most patients presented recurrent airway infections, which was significantly associated with IgA deficiency. IgA deficiency was observed in 60.8% of patients and IgG deficiency in 28.6%. T- and B-lymphopenias were also present in most cases. Mean survival was 24.2 years, and Kaplan-Meier 20-year-survival rate was 52.6%, with higher mortality associated with female gender and low IgG levels. These findings suggest that immunologic status should be investigated in all patients with AT.</p>","PeriodicalId":13389,"journal":{"name":"Immunologic Research","volume":" ","pages":"864-873"},"PeriodicalIF":3.3,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141247761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-01Epub Date: 2024-05-15DOI: 10.1007/s12026-024-09484-7
Boukje C Eveleens Maarse, Micha N Ronner, Manon A A Jansen, Tessa Niemeyer-van der Kolk, Aliede E In 't Veld, Erica S Klaassen, Saira Ahmad, Andrea Itano, Duncan McHale, Matthijs Moerland
The gut microbiome can modulate systemic inflammation and is therefore target for immunomodulation. Immunomodulating effects of EDP1815, a bacterial commensal strain of Prevotella histicola, were studied in healthy participants. Effects on adaptive immunity were evaluated by a neo-antigen challenge with keyhole limpet haemocyanin (KLH), while effects on innate immunity were evaluated by topical toll-like receptor 7 (TLR7) agonist imiquimod. Capsules with two enteric coating levels (EC1, EC2) were compared. Thirty-six healthy participants were included and received a daily dose of 8 × 1010 cells EDP1815-EC1, EDP1815-EC2 or placebo (randomization 1:1:1) for 60 days. They received KLH vaccinations at days 8, 24 and 36, with intradermal skin challenge at day 57. KLH challenge outcomes were antibody levels, and skin blood flow and erythema after skin challenge, measured by imaging techniques. Imiquimod administration started at day 57, for 72 h. Outcomes consisted of imaging measurements similar to the KLH challenge, and the influx of inflammatory cells and cytokines in blister fluid. There was no effect of EDP1815 treatment on the KLH challenge, neither on the imaging outcomes of the imiquimod challenge. There was a consistently lower influx of inflammatory cells in the blister fluid of EDP1815-treated participants (neutrophils, p = 0.016; granulocytes, p = 0.024), more pronounced in EC1. There was a lower influx of interleukin [IL]-1β, IL-6, IL-8, IL-10, interferon [IFN]-γ and tumour necrosis factor in blister fluid of EDP1815-treated participants. EDP1815 had immunomodulatory effects on the innate immune response driven by imiquimod, but no effect on the KLH challenge was observed. Trial registration number: NCT05682222; date: 22 July 2022.
{"title":"Immunomodulating effects of the single bacterial strain therapy EDP1815 on innate and adaptive immune challenge responses - a randomized, placebo-controlled clinical trial.","authors":"Boukje C Eveleens Maarse, Micha N Ronner, Manon A A Jansen, Tessa Niemeyer-van der Kolk, Aliede E In 't Veld, Erica S Klaassen, Saira Ahmad, Andrea Itano, Duncan McHale, Matthijs Moerland","doi":"10.1007/s12026-024-09484-7","DOIUrl":"10.1007/s12026-024-09484-7","url":null,"abstract":"<p><p>The gut microbiome can modulate systemic inflammation and is therefore target for immunomodulation. Immunomodulating effects of EDP1815, a bacterial commensal strain of Prevotella histicola, were studied in healthy participants. Effects on adaptive immunity were evaluated by a neo-antigen challenge with keyhole limpet haemocyanin (KLH), while effects on innate immunity were evaluated by topical toll-like receptor 7 (TLR7) agonist imiquimod. Capsules with two enteric coating levels (EC1, EC2) were compared. Thirty-six healthy participants were included and received a daily dose of 8 × 10<sup>10</sup> cells EDP1815-EC1, EDP1815-EC2 or placebo (randomization 1:1:1) for 60 days. They received KLH vaccinations at days 8, 24 and 36, with intradermal skin challenge at day 57. KLH challenge outcomes were antibody levels, and skin blood flow and erythema after skin challenge, measured by imaging techniques. Imiquimod administration started at day 57, for 72 h. Outcomes consisted of imaging measurements similar to the KLH challenge, and the influx of inflammatory cells and cytokines in blister fluid. There was no effect of EDP1815 treatment on the KLH challenge, neither on the imaging outcomes of the imiquimod challenge. There was a consistently lower influx of inflammatory cells in the blister fluid of EDP1815-treated participants (neutrophils, p = 0.016; granulocytes, p = 0.024), more pronounced in EC1. There was a lower influx of interleukin [IL]-1β, IL-6, IL-8, IL-10, interferon [IFN]-γ and tumour necrosis factor in blister fluid of EDP1815-treated participants. EDP1815 had immunomodulatory effects on the innate immune response driven by imiquimod, but no effect on the KLH challenge was observed. Trial registration number: NCT05682222; date: 22 July 2022.</p>","PeriodicalId":13389,"journal":{"name":"Immunologic Research","volume":" ","pages":"776-787"},"PeriodicalIF":3.3,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11347467/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140921892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-01Epub Date: 2024-02-08DOI: 10.1007/s12026-024-09459-8
P M Punithavathy, Ramesh Babu Telugu, Vinay Murahari Rao, Savit B Prabhu, Jayakanthan Kabeerdoss, Chanduni Syed, George Joseph, Debashish Danda, Meera Thomas, Ruchika Goel
The relapses and refractory disease are a challenge in the management of patients with Takayasu arteritis (TAK). We quantified pathogenic CD4 + memory T helper cells bearing surface markers CD161 and/or p-glycoprotein (MDR1) in patients with TAK. Peripheral blood mononuclear cells of 21 patients with TAK and 16 age-matched controls were stained with anti-CD3, anti-CD4, anti-CD45RA, anti-CD161 and anti-p-glycoprotein antibodies and subjected to flow cytometry by FACS ARIAIII. Eighteen patients underwent follow-up immunophenotyping. Intracellular staining for interleukin-17 and interferon-γ was performed for 18 patients and 11 controls. Surgical arterial biopsies of 6 TAK and 5 non-inflammatory controls were subjected to immunohistochemistry with anti-CD161 and anti-p-glycoprotein. At baseline the frequency of MDR1 + CD4 + and CD161 + MDR1 + CD4 + memory T cells was higher in TAK than controls (p = 0.002 and 0.01, respectively). After stimulation, the frequency of IFN-y + CD161 + cells was higher in TAK than controls (p = 0.028). Modal fluorescence intensity of CD161 + MDR1 + CD45RA - CD4 + cells was higher in active as compared with stable disease (p = 0.041). At 6 months, MDR1 + and CD161 + MDR1 + memory CD4 + T cells decreased significantly only in patients who had complete/partial response to treatment (p = 0.047 and 0.02, respectively). To conclude, MDR1 + and MDR1 + CD161 + CD4 + memory T-helper cells are increased in patients with TAK. These cells decreased only in patients with response to treatment during subsequent follow-up.
{"title":"Study of pathogenic T-helper cell subsets in Asian Indian patients with Takayasu arteritis.","authors":"P M Punithavathy, Ramesh Babu Telugu, Vinay Murahari Rao, Savit B Prabhu, Jayakanthan Kabeerdoss, Chanduni Syed, George Joseph, Debashish Danda, Meera Thomas, Ruchika Goel","doi":"10.1007/s12026-024-09459-8","DOIUrl":"10.1007/s12026-024-09459-8","url":null,"abstract":"<p><p>The relapses and refractory disease are a challenge in the management of patients with Takayasu arteritis (TAK). We quantified pathogenic CD4 + memory T helper cells bearing surface markers CD161 and/or p-glycoprotein (MDR1) in patients with TAK. Peripheral blood mononuclear cells of 21 patients with TAK and 16 age-matched controls were stained with anti-CD3, anti-CD4, anti-CD45RA, anti-CD161 and anti-p-glycoprotein antibodies and subjected to flow cytometry by FACS ARIAIII. Eighteen patients underwent follow-up immunophenotyping. Intracellular staining for interleukin-17 and interferon-γ was performed for 18 patients and 11 controls. Surgical arterial biopsies of 6 TAK and 5 non-inflammatory controls were subjected to immunohistochemistry with anti-CD161 and anti-p-glycoprotein. At baseline the frequency of MDR1 + CD4 + and CD161 + MDR1 + CD4 + memory T cells was higher in TAK than controls (p = 0.002 and 0.01, respectively). After stimulation, the frequency of IFN-y + CD161 + cells was higher in TAK than controls (p = 0.028). Modal fluorescence intensity of CD161 + MDR1 + CD45RA - CD4 + cells was higher in active as compared with stable disease (p = 0.041). At 6 months, MDR1 + and CD161 + MDR1 + memory CD4 + T cells decreased significantly only in patients who had complete/partial response to treatment (p = 0.047 and 0.02, respectively). To conclude, MDR1 + and MDR1 + CD161 + CD4 + memory T-helper cells are increased in patients with TAK. These cells decreased only in patients with response to treatment during subsequent follow-up.</p>","PeriodicalId":13389,"journal":{"name":"Immunologic Research","volume":" ","pages":"636-643"},"PeriodicalIF":3.3,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139702403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-01Epub Date: 2024-05-21DOI: 10.1007/s12026-024-09487-4
Mingyan Zheng, Feng Zhao
Polycystic ovary syndrome (PCOS) is a diverse endocrine disorder widely recognized as the prevailing metabolic condition among women in their reproductive years. The precise pathophysiological mechanisms underlying PCOS remain incompletely understood. However, existing evidence suggests that the development of PCOS may be linked to factors such as abdominal obesity, hyperandrogenism, and insulin resistance (IR). Excessive central adiposity in women with PCOS may lead to the development of a chronic, low-grade inflammation characterized by the activation of proinflammatory cytokines. The cytokines that belong to the IL-12 family are a collection of distinct heterodimeric cytokines that include IL-12, IL-23, IL-27, and IL-35. Recent research has provided further evidence regarding the significance of IL-12 cytokines in influencing both innate and adaptive immune responses in different diseases. Additionally, these studies have discovered diverse roles for certain members of the IL-12 family, encompassing multiple immunological functions that can either act as effectors or regulators. In this discourse, we examine the distinctive and atypical structural and functional attributes of this particular cytokine family. This study aims to offer a comprehensive overview of the pathophysiological significance of the IL-12 family cytokines in PCOS patients. Additionally, the therapeutic potential of the cytokines as novel approaches for PCOS treatment will be proposed.
{"title":"The IL-12 family of heterodimeric cytokines in polycystic ovarian syndrome: biological role in induction, regulation, and treatment.","authors":"Mingyan Zheng, Feng Zhao","doi":"10.1007/s12026-024-09487-4","DOIUrl":"10.1007/s12026-024-09487-4","url":null,"abstract":"<p><p>Polycystic ovary syndrome (PCOS) is a diverse endocrine disorder widely recognized as the prevailing metabolic condition among women in their reproductive years. The precise pathophysiological mechanisms underlying PCOS remain incompletely understood. However, existing evidence suggests that the development of PCOS may be linked to factors such as abdominal obesity, hyperandrogenism, and insulin resistance (IR). Excessive central adiposity in women with PCOS may lead to the development of a chronic, low-grade inflammation characterized by the activation of proinflammatory cytokines. The cytokines that belong to the IL-12 family are a collection of distinct heterodimeric cytokines that include IL-12, IL-23, IL-27, and IL-35. Recent research has provided further evidence regarding the significance of IL-12 cytokines in influencing both innate and adaptive immune responses in different diseases. Additionally, these studies have discovered diverse roles for certain members of the IL-12 family, encompassing multiple immunological functions that can either act as effectors or regulators. In this discourse, we examine the distinctive and atypical structural and functional attributes of this particular cytokine family. This study aims to offer a comprehensive overview of the pathophysiological significance of the IL-12 family cytokines in PCOS patients. Additionally, the therapeutic potential of the cytokines as novel approaches for PCOS treatment will be proposed.</p>","PeriodicalId":13389,"journal":{"name":"Immunologic Research","volume":" ","pages":"583-591"},"PeriodicalIF":3.3,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141070912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-01Epub Date: 2024-05-23DOI: 10.1007/s12026-024-09490-9
Man Lun Hsu, Kai Fu Jhuang, Moncef Zouali
Studies in animal models and human subjects have shown that, in addition to their implication in innate immunity, inflammasomes also can play a role in adaptive immunity. However, the contribution of the nucleotide-binding oligomerization domain-, leucine-rich repeat-, and pyrin domain-containing protein 3 (NLRP3) inflammasome pathway to adaptive immunity remains incompletely explored. Here, we show that NLRP3 plays an important role in different facets of B cell functions, including proliferation, antibody production, and secretion of inflammatory and anti-inflammatory cytokines. When exposed to B cell receptor engagement, Toll-like receptor activation, stimulation in conditions that mimic T cell-dependent responses, or NLRP3 activation, B cells manifest disparate responses and produce different cytokine patterns critical for modulating innate and adaptive immunity, indicating that the cytokines produced serve a critical link between the early innate immune response and the delayed adaptive immunity. Importantly, genetic ablation of nlrp3 reduced the inflammasome-mediated functions of B cells. We propose that, in the absence of other cell types, the potential of B lymphocytes to respond to NLRP3 engagement enables them to initiate inflammatory cascades through recruitment of other cell subsets, such as macrophages and neutrophils. Since NLRP3 activation of B cells is not followed by pyroptosis, even in the presence of a basal caspase-1 activity, this pathway acts as a bridge that optimizes interactions between the innate and adoptive branches of the immune response.
对动物模型和人体的研究表明,炎性体除了参与先天性免疫外,还能在适应性免疫中发挥作用。然而,核苷酸结合低聚物结构域、富亮氨酸重复序列和含吡啶结构域的蛋白 3(NLRP3)炎性体通路对适应性免疫的贡献仍未完全探明。在这里,我们发现 NLRP3 在 B 细胞功能的不同方面发挥着重要作用,包括增殖、抗体产生以及炎症和抗炎细胞因子的分泌。当暴露于 B 细胞受体接合、Toll 样受体激活、模拟 T 细胞依赖性反应的条件刺激或 NLRP3 激活时,B 细胞会表现出不同的反应,并产生对调节先天性免疫和适应性免疫至关重要的不同细胞因子模式,这表明所产生的细胞因子是早期先天性免疫反应和延迟适应性免疫之间的关键环节。重要的是,基因消减 nlrp3 会降低 B 细胞炎性体介导的功能。我们认为,在缺乏其他细胞类型的情况下,B 淋巴细胞对 NLRP3 参与做出反应的潜力使它们能够通过招募其他细胞亚群(如巨噬细胞和中性粒细胞)启动炎症级联。由于 B 细胞的 NLRP3 激活后不会发生热凋亡,即使存在基本的 caspase-1 活性也是如此,因此这种途径就像一座桥梁,优化了免疫反应的先天分支和后天分支之间的相互作用。
{"title":"Inflammasome functional activities in B lymphocytes.","authors":"Man Lun Hsu, Kai Fu Jhuang, Moncef Zouali","doi":"10.1007/s12026-024-09490-9","DOIUrl":"10.1007/s12026-024-09490-9","url":null,"abstract":"<p><p>Studies in animal models and human subjects have shown that, in addition to their implication in innate immunity, inflammasomes also can play a role in adaptive immunity. However, the contribution of the nucleotide-binding oligomerization domain-, leucine-rich repeat-, and pyrin domain-containing protein 3 (NLRP3) inflammasome pathway to adaptive immunity remains incompletely explored. Here, we show that NLRP3 plays an important role in different facets of B cell functions, including proliferation, antibody production, and secretion of inflammatory and anti-inflammatory cytokines. When exposed to B cell receptor engagement, Toll-like receptor activation, stimulation in conditions that mimic T cell-dependent responses, or NLRP3 activation, B cells manifest disparate responses and produce different cytokine patterns critical for modulating innate and adaptive immunity, indicating that the cytokines produced serve a critical link between the early innate immune response and the delayed adaptive immunity. Importantly, genetic ablation of nlrp3 reduced the inflammasome-mediated functions of B cells. We propose that, in the absence of other cell types, the potential of B lymphocytes to respond to NLRP3 engagement enables them to initiate inflammatory cascades through recruitment of other cell subsets, such as macrophages and neutrophils. Since NLRP3 activation of B cells is not followed by pyroptosis, even in the presence of a basal caspase-1 activity, this pathway acts as a bridge that optimizes interactions between the innate and adoptive branches of the immune response.</p>","PeriodicalId":13389,"journal":{"name":"Immunologic Research","volume":" ","pages":"828-840"},"PeriodicalIF":3.3,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141081286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-01Epub Date: 2024-03-27DOI: 10.1007/s12026-024-09476-7
Xiaoli Pang, Huizhong Yang, Chi Wang, Suyan Tian
Takayasu arteritis (TA) and inflammatory bowel disease (IBD) are two distinct diseases; however, previous studies have reported many cases of IBD-TA coexistence. Additionally, the incidence of IBD in patients with TA is estimated to be significantly higher than the incidence in the general population. Therefore, the two diseases are anticipated to be linked. Mendelian randomization (MR) analysis assesses whether an exposure might causally affect an outcome by using genetic variants inherited randomly at conception, thereby reducing the impact of confounding and reverse causality. The present study aimed to investigate the potential causal relationship between TA and IBD using MR analysis. Two-sample MR analysis, in which TA and IBD were regarded as the exposure and outcome, respectively, was conducted to investigate whether the two diseases are causally related using the R TwoSampleMR package. Summary GWAS data of TA consisted of 516 Turkish cohorts and 462 controls, and 119 patients and 993 controls of European ancestry. Summary data of IBD was from a sub-study of the International Inflammatory Bowel Disease Genetics Consortium (IIBDGC) that comprised 31,665 cases and 33,977 controls of European ancestry. Additionally, separate MR analyses stratified by the two major subtypes of IBD, Crohn's disease (CD) and ulcerative colitis (UC), were performed. Various statistical tests, including the intercept of MR-Egger regression, funnel plots, Cochran's Q tests, and leave-one-out sensitivity analyses, were employed to assess the presence of heterogeneity and horizontal pleiotropy among single nucleotide polymorphisms (SNPs). In the primary analysis using the inverse-variance weighted (IVW) method, the risk of developing IBD for a patient with TA compared to a non-TA control increased 1.053 times (Odds Ratio (OR) = 1.053, P = 0.065). The MR-Egger method (OR = 1.025, P = 0.470) yielded results consistent with this null finding. However, both the weighted median method (OR = 1.038, P = 0.002) and the weighted mode method (OR = 1.051, P = 0.009) identified a significant harmful causal effect. The MR outcomes from separate subgroup analyses slightly diverged from those of IBD and TA. Specifically, for CD, three methods indicated that TA is a risk factor: IVW estimated the OR as 1.045 (P = 0.032), MR-Egger as 0.997 (P = 0.957), weighed median as 1.028 (P = 0.021), and weighted mode as 1.031 (P = 0.022), respectively. This study represents one of the initial investigations into the potential causal association between TA and IBD. With three MR methods, including the primary IVW approach, indicating a notable effect on TA on CD, our analysis findings offer some indication that TA could be a contributing risk factor for CD.
高安动脉炎(TA)和炎症性肠病(IBD)是两种不同的疾病;然而,以往的研究报告了许多 IBD-TA 并存的病例。此外,据估计,TA 患者中 IBD 的发病率明显高于普通人群。因此,预计这两种疾病是相关联的。孟德尔随机化(MR)分析通过使用受孕时随机遗传的基因变异来评估暴露是否会对结果产生因果影响,从而减少混杂和反向因果关系的影响。本研究旨在利用MR分析调查TA与IBD之间的潜在因果关系。本研究使用 R TwoSampleMR 软件包进行双样本 MR 分析,将 TA 和 IBD 分别视为暴露和结果,研究这两种疾病是否存在因果关系。TA的GWAS汇总数据包括516个土耳其队列和462个对照组,以及119个欧洲血统患者和993个对照组。IBD 的汇总数据来自国际炎症性肠病遗传学联合会(IIBDGC)的一项子研究,其中包括 31,665 例病例和 33,977 例欧洲血统对照。此外,还按 IBD 的两个主要亚型--克罗恩病(CD)和溃疡性结肠炎(UC)--分别进行了 MR 分析。为了评估单核苷酸多态性(SNPs)之间是否存在异质性和水平多向性,我们采用了各种统计检验,包括MR-Egger回归截距、漏斗图、Cochran's Q检验和leave-one-out敏感性分析。在使用逆方差加权法(IVW)进行的主要分析中,与非TA对照组相比,TA患者罹患IBD的风险增加了1.053倍(Odds Ratio (OR) = 1.053, P = 0.065)。MR-Egger方法(OR = 1.025,P = 0.470)得出的结果与这一无效结论一致。然而,加权中位数法(OR = 1.038,P = 0.002)和加权模式法(OR = 1.051,P = 0.009)都发现了显著的有害因果效应。单独的亚组分析得出的 MR 结果与 IBD 和 TA 的结果略有不同。具体而言,对于 CD,三种方法都表明 TA 是一个风险因素:IVW估算的OR值为1.045(P = 0.032),MR-Egger估算的OR值为0.997(P = 0.957),加权中位数估算的OR值为1.028(P = 0.021),加权模式估算的OR值为1.031(P = 0.022)。本研究是对 TA 与 IBD 之间潜在因果关系的初步调查之一。包括主要 IVW 方法在内的三种 MR 方法都表明 TA 对 CD 有显著影响,我们的分析结果在一定程度上表明 TA 可能是 CD 的一个促成风险因素。
{"title":"Exploring the causal relationship between Takayasu arteritis and inflammatory bowel disease using Mendelian randomization.","authors":"Xiaoli Pang, Huizhong Yang, Chi Wang, Suyan Tian","doi":"10.1007/s12026-024-09476-7","DOIUrl":"10.1007/s12026-024-09476-7","url":null,"abstract":"<p><p>Takayasu arteritis (TA) and inflammatory bowel disease (IBD) are two distinct diseases; however, previous studies have reported many cases of IBD-TA coexistence. Additionally, the incidence of IBD in patients with TA is estimated to be significantly higher than the incidence in the general population. Therefore, the two diseases are anticipated to be linked. Mendelian randomization (MR) analysis assesses whether an exposure might causally affect an outcome by using genetic variants inherited randomly at conception, thereby reducing the impact of confounding and reverse causality. The present study aimed to investigate the potential causal relationship between TA and IBD using MR analysis. Two-sample MR analysis, in which TA and IBD were regarded as the exposure and outcome, respectively, was conducted to investigate whether the two diseases are causally related using the R TwoSampleMR package. Summary GWAS data of TA consisted of 516 Turkish cohorts and 462 controls, and 119 patients and 993 controls of European ancestry. Summary data of IBD was from a sub-study of the International Inflammatory Bowel Disease Genetics Consortium (IIBDGC) that comprised 31,665 cases and 33,977 controls of European ancestry. Additionally, separate MR analyses stratified by the two major subtypes of IBD, Crohn's disease (CD) and ulcerative colitis (UC), were performed. Various statistical tests, including the intercept of MR-Egger regression, funnel plots, Cochran's Q tests, and leave-one-out sensitivity analyses, were employed to assess the presence of heterogeneity and horizontal pleiotropy among single nucleotide polymorphisms (SNPs). In the primary analysis using the inverse-variance weighted (IVW) method, the risk of developing IBD for a patient with TA compared to a non-TA control increased 1.053 times (Odds Ratio (OR) = 1.053, P = 0.065). The MR-Egger method (OR = 1.025, P = 0.470) yielded results consistent with this null finding. However, both the weighted median method (OR = 1.038, P = 0.002) and the weighted mode method (OR = 1.051, P = 0.009) identified a significant harmful causal effect. The MR outcomes from separate subgroup analyses slightly diverged from those of IBD and TA. Specifically, for CD, three methods indicated that TA is a risk factor: IVW estimated the OR as 1.045 (P = 0.032), MR-Egger as 0.997 (P = 0.957), weighed median as 1.028 (P = 0.021), and weighted mode as 1.031 (P = 0.022), respectively. This study represents one of the initial investigations into the potential causal association between TA and IBD. With three MR methods, including the primary IVW approach, indicating a notable effect on TA on CD, our analysis findings offer some indication that TA could be a contributing risk factor for CD.</p>","PeriodicalId":13389,"journal":{"name":"Immunologic Research","volume":" ","pages":"707-713"},"PeriodicalIF":3.3,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140305502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-01Epub Date: 2024-01-26DOI: 10.1007/s12026-024-09460-1
Camilla Mattiuzzi, Giuseppe Lippi
{"title":"Evidence of concerning decline of COVID-19 vaccination in older persons.","authors":"Camilla Mattiuzzi, Giuseppe Lippi","doi":"10.1007/s12026-024-09460-1","DOIUrl":"10.1007/s12026-024-09460-1","url":null,"abstract":"","PeriodicalId":13389,"journal":{"name":"Immunologic Research","volume":" ","pages":"521-522"},"PeriodicalIF":3.3,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139564100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-01Epub Date: 2024-01-31DOI: 10.1007/s12026-024-09457-w
Joana Lopes, Maria João Malaquias, Joana Freitas, Rodrigo Valido, Paula Carneiro, Esmeralda Neves, Ana Maria Moreira, Raquel Samões, Ernestina Santos, Ana Paula Correia
A Consensus of Psychoimmunology Experts (Pollak et al., 2019) established a set of red flags and proposed diagnostic criteria for psychosis of autoimmune origin (AIP). Previous studies on AIP are limited by the scarcity of CSF analysis, preventing the valorization of blood anti-neuronal antibodies (Ab). The aims of this study are to determine the relative frequency and characterize AIP in a cohort of psychotic patients that underwent CSF workup. This work is a retrospective study in a tertiary psychiatric hospital. Clinical and paraclinical data were collected from medical records, and patients were classified according to Pollak et al. (2019) criteria. From 68 patients, ten (14.7%) had positive anti-neuronal antibodies (Ab): n = 5 in CSF and blood (n = 4 anti-NMDAr, n = 1 -GAD65), and n = 5 in blood only (n = 1 anti-GABAb, n = 1 -GAD65, n = 1 -SOX1, n = 1 -NMDAr, n = 1 -zic4). After 5- (2-10)-year follow-up, n = 6/68 (8.8%) had AIP diagnosis in context of autoimmune encephalitis (AE), and the remaining (n = 4/10, blood-only Ab) alternative diagnoses (n = 2 dementia, n = 1 schizophrenia, n = 1 intellectual disability). Ten of the 13 patients that fulfilled criteria for possible AIP were mimics, and only three AE had criteria for probable AIP. All AIP developed neurological manifestations (mostly cognitive dysfunction); EEG was usually abnormal (66.7%), and all had normal MRI. We found statistically significant associations between AIP/AE and systemic autoimmune disease, presentation with seizures and EEG abnormalities. All AE developed neurological symptoms alongside psychosis. Ab positivity occurred predominantly in AE but also in other neuropsychiatric disorders. Clinical suspicion based on the knowledge of the described presentations of established Ab is crucial in the psychotic patient approach.
{"title":"Blood and CSF anti-neuronal antibodies testing in psychotic syndromes: a retrospective analysis from a tertiary psychiatric hospital.","authors":"Joana Lopes, Maria João Malaquias, Joana Freitas, Rodrigo Valido, Paula Carneiro, Esmeralda Neves, Ana Maria Moreira, Raquel Samões, Ernestina Santos, Ana Paula Correia","doi":"10.1007/s12026-024-09457-w","DOIUrl":"10.1007/s12026-024-09457-w","url":null,"abstract":"<p><p>A Consensus of Psychoimmunology Experts (Pollak et al., 2019) established a set of red flags and proposed diagnostic criteria for psychosis of autoimmune origin (AIP). Previous studies on AIP are limited by the scarcity of CSF analysis, preventing the valorization of blood anti-neuronal antibodies (Ab). The aims of this study are to determine the relative frequency and characterize AIP in a cohort of psychotic patients that underwent CSF workup. This work is a retrospective study in a tertiary psychiatric hospital. Clinical and paraclinical data were collected from medical records, and patients were classified according to Pollak et al. (2019) criteria. From 68 patients, ten (14.7%) had positive anti-neuronal antibodies (Ab): n = 5 in CSF and blood (n = 4 anti-NMDAr, n = 1 -GAD65), and n = 5 in blood only (n = 1 anti-GABAb, n = 1 -GAD65, n = 1 -SOX1, n = 1 -NMDAr, n = 1 -zic4). After 5- (2-10)-year follow-up, n = 6/68 (8.8%) had AIP diagnosis in context of autoimmune encephalitis (AE), and the remaining (n = 4/10, blood-only Ab) alternative diagnoses (n = 2 dementia, n = 1 schizophrenia, n = 1 intellectual disability). Ten of the 13 patients that fulfilled criteria for possible AIP were mimics, and only three AE had criteria for probable AIP. All AIP developed neurological manifestations (mostly cognitive dysfunction); EEG was usually abnormal (66.7%), and all had normal MRI. We found statistically significant associations between AIP/AE and systemic autoimmune disease, presentation with seizures and EEG abnormalities. All AE developed neurological symptoms alongside psychosis. Ab positivity occurred predominantly in AE but also in other neuropsychiatric disorders. Clinical suspicion based on the knowledge of the described presentations of established Ab is crucial in the psychotic patient approach.</p>","PeriodicalId":13389,"journal":{"name":"Immunologic Research","volume":" ","pages":"626-635"},"PeriodicalIF":3.3,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139642000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-01Epub Date: 2024-05-15DOI: 10.1007/s12026-024-09491-8
Xiaoyu Liu, Yan Li, Weijian Zhang, Nan Gao, Jie Chen, Cheng Xiao, Guoqiang Zhang
Acute respiratory distress syndrome (ARDS)/acute lung injury (ALI) is a severe complication of sepsis characterized by acute respiratory distress, hypoxemia, and diffuse bilateral pulmonary infiltrates. The regulation of RIPK1 is an important part of the inflammatory response, and cIAP1/2 serves as the E3 ubiquitin ligase for RIPK1. In this study, we investigated the effect and mechanism of cIAP1/2 inhibition on sepsis-induced lung injury. Our results showed that cIAP1/2 inhibition can alleviate sepsis-induced lung injury and reduce the inflammatory response, which is accompanied by downregulation of RIPK1 phosphorylation and ubiquitination. Additionally, cIAP1/2 inhibition led to the up-regulation of programmed cell death, including apoptosis, necroptosis, and pyroptosis, and inhibiting these three cell death pathways can further reduce the inflammatory response, which is similar to the recently discovered programmed cell death pathway PANoptosis. Our findings suggest that cIAP1/2 and PANoptosis inhibition may be a new strategy for treating sepsis-induced lung injury and provide important references for further exploring the mechanism of sepsis-induced lung injury and identifying new therapeutic targets.
{"title":"Inhibition of cIAP1/2 reduces RIPK1 phosphorylation in pulmonary endothelial cells and alleviate sepsis-induced lung injury and inflammatory response.","authors":"Xiaoyu Liu, Yan Li, Weijian Zhang, Nan Gao, Jie Chen, Cheng Xiao, Guoqiang Zhang","doi":"10.1007/s12026-024-09491-8","DOIUrl":"10.1007/s12026-024-09491-8","url":null,"abstract":"<p><p>Acute respiratory distress syndrome (ARDS)/acute lung injury (ALI) is a severe complication of sepsis characterized by acute respiratory distress, hypoxemia, and diffuse bilateral pulmonary infiltrates. The regulation of RIPK1 is an important part of the inflammatory response, and cIAP1/2 serves as the E3 ubiquitin ligase for RIPK1. In this study, we investigated the effect and mechanism of cIAP1/2 inhibition on sepsis-induced lung injury. Our results showed that cIAP1/2 inhibition can alleviate sepsis-induced lung injury and reduce the inflammatory response, which is accompanied by downregulation of RIPK1 phosphorylation and ubiquitination. Additionally, cIAP1/2 inhibition led to the up-regulation of programmed cell death, including apoptosis, necroptosis, and pyroptosis, and inhibiting these three cell death pathways can further reduce the inflammatory response, which is similar to the recently discovered programmed cell death pathway PANoptosis. Our findings suggest that cIAP1/2 and PANoptosis inhibition may be a new strategy for treating sepsis-induced lung injury and provide important references for further exploring the mechanism of sepsis-induced lung injury and identifying new therapeutic targets.</p>","PeriodicalId":13389,"journal":{"name":"Immunologic Research","volume":" ","pages":"841-850"},"PeriodicalIF":3.3,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140921822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-01Epub Date: 2024-05-21DOI: 10.1007/s12026-024-09489-2
Stefka Delimitreva, Gabriela Boneva, Irina Chakarova, Valentina Hadzhinesheva, Ralitsa Zhivkova, Maya Markova, Venera Nikolova, Anton Kolarov, Nikola Mladenov, Silviya Bradyanova, József Prechl, Nikolina Mihaylova, Andrey Tchorbanov
Systemic lupus erythematosus (SLE) is an autoimmune disease characterized by the activation of the immune response against self antigens. Numerous reproductive complications, including reduced birth rate and complications for the mother and the fetus during pregnancy, have been observed in women with SLE. In the present study, we aimed to investigate the effect of SLE development on oocyte meiosis in lupus-prone mice. Lupus-prone MRL/lpr mice were used for the experiments: disease-free (4 weeks of age) and sick (20 weeks of age, virgin and postpartum). The immune response was monitored by flow cytometry, ELISpot, ELISA, and histology. Oocytes were analyzed by fluorescence microscopy based on chromatin, tubulin, and actin structures. The lupus-prone MRL/lpr mice developed age-dependent symptoms of SLE with increased levels of various autoantibodies, proteinuria, and renal infiltrates and a tendency for the immune response to worsen with changes in cell populations and the cytokine profile. The number and quality of oocytes were also affected, and the successful pregnancy rate of MRL/lpr mice was limited to only 60%. Isolated oocytes showed severe structural changes in all studied groups. Systemic alterations in immune homeostasis in SLE affect the quality of developing oocytes, which is evident from a young age. The data obtained is in line with the trend of reduced fertility in lupus-prone MRL/lpr mice. The phenomenon can be explained by changes in the microenvironment of the relevant organs and close connection between ovulation and inflammatory processes.
{"title":"Lupus progression deteriorates oogenesis quality in MRL/lpr mice.","authors":"Stefka Delimitreva, Gabriela Boneva, Irina Chakarova, Valentina Hadzhinesheva, Ralitsa Zhivkova, Maya Markova, Venera Nikolova, Anton Kolarov, Nikola Mladenov, Silviya Bradyanova, József Prechl, Nikolina Mihaylova, Andrey Tchorbanov","doi":"10.1007/s12026-024-09489-2","DOIUrl":"10.1007/s12026-024-09489-2","url":null,"abstract":"<p><p>Systemic lupus erythematosus (SLE) is an autoimmune disease characterized by the activation of the immune response against self antigens. Numerous reproductive complications, including reduced birth rate and complications for the mother and the fetus during pregnancy, have been observed in women with SLE. In the present study, we aimed to investigate the effect of SLE development on oocyte meiosis in lupus-prone mice. Lupus-prone MRL/lpr mice were used for the experiments: disease-free (4 weeks of age) and sick (20 weeks of age, virgin and postpartum). The immune response was monitored by flow cytometry, ELISpot, ELISA, and histology. Oocytes were analyzed by fluorescence microscopy based on chromatin, tubulin, and actin structures. The lupus-prone MRL/lpr mice developed age-dependent symptoms of SLE with increased levels of various autoantibodies, proteinuria, and renal infiltrates and a tendency for the immune response to worsen with changes in cell populations and the cytokine profile. The number and quality of oocytes were also affected, and the successful pregnancy rate of MRL/lpr mice was limited to only 60%. Isolated oocytes showed severe structural changes in all studied groups. Systemic alterations in immune homeostasis in SLE affect the quality of developing oocytes, which is evident from a young age. The data obtained is in line with the trend of reduced fertility in lupus-prone MRL/lpr mice. The phenomenon can be explained by changes in the microenvironment of the relevant organs and close connection between ovulation and inflammatory processes.</p>","PeriodicalId":13389,"journal":{"name":"Immunologic Research","volume":" ","pages":"811-827"},"PeriodicalIF":3.3,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141070908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}