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Clinical Immunology: the Official Journal of the Clinical Immunology Society

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https://www.readbyqxmd.com/read/29233784/altered-natural-killer-cell-cytokine-profile-in-type-2-autoimmune-hepatitis
#1
Dalila Mele, Grazia Bossi, Giuseppe Maggiore, Barbara Oliviero, Stefania Mantovani, Beatrice Bonelli, Mario U Mondelli, Stefania Varchetta
Type 2 autoimmune hepatitis (AIH-2) is a rare disease presenting in early childhood. The immunopathogenetic mechanisms are poorly characterized, although a defect of regulatory T cells (Treg) has been shown. There is virtually no information on innate immune responses and natural killer (NK) cells in particular. We have performed an extended immunophenotypic and functional analysis of NK cells in children with AIH-2. We show that NK cell frequency is reduced in this setting and that the balance between NK activating and inhibitory receptors is skewed toward activation...
December 9, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/29229565/gm-csf-producing-autoreactive-cd4-t-cells-in-type-1-diabetes
#2
Jan Knoop, Anita Gavrisan, Denise Kuehn, Julia Reinhardt, Melanie Heinrich, Markus Hippich, Anne Eugster, Christian Ockert, Anette-Gabriele Ziegler, Ezio Bonifacio
The phenotype of autoreactive T cells in type 1 diabetes is described as Th1, Th17 and/or Th21, but is largely uncharacterized. We combined multi-parameter cytokine profiling and proliferation, and identified GM-CSF producing cells as a component of the response to beta cell autoantigens proinsulin and GAD65. Overall cytokine profiles of CD4+ T cell were not altered in type 1 diabetes. In contrast, patients with recent onset type 1 diabetes had increased frequencies of proinsulin-responsive CD4+CD45RA- T cells producing GM-CSF (p=0...
December 8, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/29223407/stat3-mediated-epigenetic-silencing-of-foxp3-in-lada-t-cells-is-regulated-through-hdac5-and-dnmt1
#3
Can Hou, Yanjun Zhong, Zhen Wang, Zhao Ming, Gan Huang, Lin Ouyang, Yijun Li, Qianjin Lu, Zhiguang Zhou
In LADA patients, Tregs are reduced and FOXP3 is downregulated in CD4+ T cells, but the etiology remains unclear. Our study included in 20 LADA patients and 20 healthy control patients. qRT-PCR results showed that STAT3, HDAC3, HDAC5, SIRT1, DNMT1 and DNMT3b mRNAs were significantly upregulated in LADA CD4+ T cells than controls, while FOXP3 mRNA significantly decreased. p-STAT3, STAT3, DNMT1 and DNMT3b expressions were increased demonstrated by western blot. ChIP-PCR suggested that p-STAT3 binds to the Foxp3 promoter, meanwhile, histone H3 acetylation at K9 and K14 of FOXP3 promoter were significantly lower than controls...
December 6, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/29223406/chronic-granulomatous-disease-in-children-a-single-center-experience
#4
Alessandra Beghin, Marta Comini, Annarosa Soresina, Luisa Imberti, Michela Zucchi, Alessandro Plebani, Alessandro Montanelli, Fulvio Porta, Arnalda Lanfranchi
Chronic Granulomatous Disease (CGD) is caused by the failure of the phagocytes to kill pathogens. We carried out a retrospective analysis of cellular, molecular and clinical features of 14 young patients (mean age at the onset of symptoms and diagnosis: 10 and 25months, respectively), 7 with autosomal recessive and 7 X-linked form, referred to the Children's Hospital of Brescia between 1999 and 2016. Two new mutations were found, one localized in the CYBB and one in the NCF1 genes. Twelve patients were followed in our institution; the average length of their follow-up after diagnosis was 66months in X-linked patients and 126months in autosomal recessive inheritance...
December 6, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/29198822/up-regulation-of-chemokine-cxcl13-in-systemic-candidiasis
#5
Congya Li, Ju Cao, Lifang Wang, Xiaojiong Jia, Jianchun He, Liping Zhang
Candida albicans is the leading cause of healthcare associated bloodstream infections. Chemokine CXCL13 is well-known involved in inflammation, but its role in candidemia has not been assessed. Our study firstly demonstrated that serum CXCL13 levels were significantly elevated in candidemic patients compared with bacteremic patients and control subjects by ELISA, and CXCL13 concentrations were positively and significantly correlated with clinical Sequential Organ Failure Assessment (SOFA) scores and several laboratory parameters in patients...
November 30, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/29197637/intratecal-anti-suprabasin-antibodies-in-sle-a-cause-of-local-concern
#6
Florencia Rosetti, José C Crispín
No abstract text is available yet for this article.
November 29, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/29196148/circulating-il-17-producing-mucosal-associated-invariant-t-cells-mait-are-associated-with-symptoms-in-children-with-asthma
#7
Guillaume Lezmi, Rola Abou Taam, Céline Dietrich, Lucienne Chatenoud, Jacques de Blic, Maria Leite-de-Moraes
IL-17 and mucosal-associated invariant T (MAIT) cells have been involved in asthma pathogenesis. However, IL-17-producing MAIT cells (MAIT-17) were not evidenced. We aimed to determine whether circulating MAIT-17 were detectable in children with asthma, and whether they correlated with asthma symptoms or lung function. Children from the SPASM cohort of preschoolers with severe wheeze were reassessed for asthma at school age, and categorized as exacerbators (1 or more severe exacerbations in the previous 12months) or non-exacerbators...
November 28, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/29195081/corrigendum-to-klinefelter-s-syndrome-47-xxy-is-in-excess-among-men-with-sj%C3%A3-gren-s-syndrome-clin-immunol-168-2016-25-29
#8
Valerie M Harris, Rohan Sharma, Joshua Cavett, Biji T Kurien, Ke Liu, Kristi A Koelsch, Astrid Rasmussen, Lida Radfar, David Lewis, Donald U Stone, C Erick Kaufman, Shibo Li, Barbara Segal, Daniel J Wallace, Michael H Weisman, Swamy Venuturupalli, Jennifer A Kelly, Marta E Alarcon-Riquelme, Bernardo Pons-Estel, Roland Jonsson, Xianglan Lu, Jacques-Eric Gottenberg, Juan-Manuel Anaya, Deborah S Cunninghame-Graham, Andrew J W Huang, Michael T Brennan, Pamela Hughes, Ilias Alevizos, Corinne Miceli-Richard, Edward C Keystone, Vivian P Bykerk, Gideon Hirschfield, Gang Xie, Katherine A Siminovitch, Wan-Fai Ng, Gunnel Nordmark, Sara Magnusson Bucher, Per Eriksson, Roald Omdal, Nelson L Rhodus, Maureen Rischmueller, Michael Rohrer, Marie Wahren-Herlenius, TorstenWitte, Xavier Mariette, Christopher J Lessard, John B Harley, Kathy L Sivils, R Hal Scofield
No abstract text is available yet for this article.
November 28, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/29191714/subcutaneous-immunoglobulins-in-patients-with-multiple-myeloma-and-secondary-hypogammaglobulinemia
#9
Angelo Vacca, Carolina Marasco, Assunta Melaccio, Azzurra Sportelli, Ilaria Saltarella, Antonio Solimando, Franco Dammacco, Roberto Ria
Multiple myeloma is commonly associated with a reduction of non-paraprotein immunoglobulins, resulting in a higher risk of infections that represent the leading cause of the patients' death. Therefore, immunoglobulin replacement therapy appears a logical approach. A total number of 46 myeloma patients were enrolled: 24 of them were assigned to receive subcutaneous immunoglobulins, and 22 were controls. The primary endpoint was the evaluation of the annual rate of severe infections in immunoglobulins-receiving patients as compared with those untreated...
November 27, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/29183867/the-epidermal-growth-factor-receptor-inhibitor-ag1478-inhibits-eosinophilic-inflammation-in-upper-airways
#10
Shino Shimizu, Kumiko Takezawa-Yasuoka, Takao Ogawa, Ichiro Tojima, Hideaki Kouzaki, Takeshi Shimizu
Mucus hypersecretion and eosinophil infiltration are important characteristics of eosinophilic inflammation in upper airways, such as allergic rhinitis and chronic rhinosinusitis with nasal polyp. EGFR transactivation induces mucus and inflammatory cytokine secretion from airway epithelial cells. However, the roles of EGFR in eosinophilic inflammation in upper airways are still unknown. The purpose of the study is to elucidate the effects of the EGFR inhibitor AG1478 on eosinophilic airway inflammation. AG1478 significantly inhibited thrombin-induced GM-CSF secretion from nasal epithelial cells and thrombin-induced secretion of eotaxin-1 and RANTES from nasal fibroblasts...
November 25, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/29183866/an-optimized-whole-blood-assay-measuring-expression-and-activity-of-nlrp3-nlrc4-and-aim2-inflammasomes
#11
Lev Grinstein, Hella Luksch, Felix Schulze, Avril A B Robertson, Matthew A Cooper, Angela Rösen-Wolff, Stefan Winkler
The proinflammatory protease caspase-1 plays pivotal roles in central pathways of innate immunity, thereby contributing to pathogen clearance. Beside its physiological role, dysregulated activity of caspase-1 is known to contribute to an increasing number of diseases. In this study we optimized and validated a low-volume human whole blood assay facilitating the measurement of caspase-1 activation and inflammasome-related gene expression upon stimulation of the NLRP3, NLRC4 or AIM2 inflammasome. Using the NLRP3 inflammasome specific inhibitor MCC950 we were able to measure the activity of canonical or alternative NLRP3 pathways, AIM2 and NLRC4 inflammasomes in whole blood...
November 25, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/29180260/a-novel-de-novo-activating-mutation-in-stat3-identified-in-a-patient-with-common-variable-immunodeficiency-cvid
#12
Mark A Russell, Manuela Pigors, Maha E Houssen, Ania Manson, David Kelsell, Hilary Longhurst, Noel G Morgan
Common variable immunodeficiency (CVID) is characterised by repeated infection associated with primary acquired hypogammaglobulinemia. CVID frequently has a complex aetiology but, in certain cases, it has a monogenic cause. Recently, variants within the gene encoding the transcription factor STAT3 were implicated in monogenic CVID. Here, we describe a patient presenting with symptoms synonymous with CVID, who displayed reduced levels of IgG and IgA, repeated viral infections and multiple additional co-morbidities...
November 24, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/29170023/novel-biallelic-trnt1-mutations-resulting-in-sideroblastic-anemia-combined-b-and-t-cell-defects-hypogammaglobulinemia-recurrent-infections-hypertrophic-cardiomyopathy-and-developmental-delay
#13
LETTER
Vassilios Lougaris, Janet Chou, Manuela Baronio, Luisa Gazzurelli, Tiziana Lorenzini, Annarosa Soresina, Daniele Moratto, Raffaele Badolato, Michael Seleman, Massimo Bellettato, Raif S Geha, Alessandro Plebani
No abstract text is available yet for this article.
November 20, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/29162406/novel-anti-suprabasin-antibodies-may-contribute-to-the-pathogenesis-of-neuropsychiatric-systemic-lupus-erythematosus
#14
Kunihiro Ichinose, Kaname Ohyama, Kaori Furukawa, Osamu Higuchi, Akihiro Mukaino, Katsuya Satoh, Shunya Nakane, Toshimasa Shimizu, Masataka Umeda, Shoichi Fukui, Ayako Nishino, Hideki Nakajima, Tomohiro Koga, Shin-Ya Kawashiri, Naoki Iwamoto, Mami Tamai, Hideki Nakamura, Tomoki Origuchi, Mari Yoshida, Naotaka Kuroda, Atsushi Kawakami
Neuropsychiatric systemic lupus erythematosus (NPSLE) is often difficult to diagnose and distinguish from other diseases, because no NPSLE-specific antibodies have been identified. We developed a novel proteomic strategy for identifying and profiling antigens in immune complexes in the cerebrospinal fluid (CSF), and applied this strategy to 26 NPSLE patients. As controls, we also included 25 SLE patients without neuropsychiatric manifestations (SLE), 15 with relapsing remitting multiple sclerosis (MS) and 10 with normal pressure hydrocephalus (NPH)...
November 18, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/29132870/mtor-inhibitor-rapamycin-induce-polymorphonuclear-myeloid-derived-suppressor-cells-mobilization-and-function-in-protecting-against-acute-graft-versus-host-disease-after-bone-marrow-transplantation
#15
Yu Lin, Binsheng Wang, Wei Shan, Yamin Tan, Jingjing Feng, Lin Xu, Limengmeng Wang, Biqing Han, Mingming Zhang, Jian Yu, Xiaohong Yu, He Huang
The mammalian target of rapamycin (mTOR) inhibitor rapamycin (RAPA) has been shown to be an effective immunosuppressor in the management of acute graft-versus-host disease (aGVHD) after bone marrow transplantation. Myeloid-derived suppressor cells (MDSCs) also have a protective effect in aGVHD regulation. However, the relationship between RAPA and MDSCs in aGVHD models is unclear. Meanwhile, the effect of RAPA on different subgroups of MDSCs is also less well described. In this study, we demonstrate that in vivo administration of RAPA results in the expansion and functional enhancement of polymorphonuclear MDSCs (PMN-MDSCs) in a murine model of aGVHD...
November 10, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/29129806/treatment-of-chronic-spontaneous-urticaria-immunomodulatory-approaches
#16
REVIEW
de Montjoye Laurence, Herman Anne, Nicolas Jean-François, Baeck Marie
This paper summarizes and reviews the mechanisms of action and data concerning efficacy of recommended treatments as well as other treatments that have been tested, independently of the outcomes, in the management of chronic spontaneous urticaria. Due to the central role of mast cells and histamine in the pathophysiology of this disease, H1-antihistamines remain the first-line treatment. However, current knowledge about this complex disease, also recognizes an important role for T lymphocytes, B lymphocytes, and autoantibodies...
November 9, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/29127016/enhanced-activation-of-circulating-plasmacytoid-dendritic-cells-in-patients-with-chronic-obstructive-pulmonary-disease-and-experimental-smoking-induced-emphysema
#17
Shi-Lin Qiu, Liang-Jian Kuang, Qi-Ya Tang, Min-Chao Duan, Jing Bai, Zhi-Yi He, Jian-Quan Zhang, Mei-Hua Li, Jing-Min Deng, Guang-Nan Liu, Xiao-Ning Zhong
Plasmacytoid dendritic cells (pDCs) are key cells bridging the innate with adaptive immunity. However, the phenotypic characteristics of circulating pDCs and its role in smoking related-Chronic Obstructive Pulmonary Disease (COPD) remain largely unknown. The aim of this study was analyzed the phenotype of circulating pDCs and the expression of IFN-γ producing CD8(+)T cells and IL-17-producing CD8(+)T cells in patients with COPD by using multi-colour flow cytometry. The cytokine profiles in peripheral blood from all subjects were measured by ELISA...
November 7, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/29113828/downregulation-of-bdh2-modulates-iron-homeostasis-and-promotes-dna-demethylation-in-cd4-t-cells-of-systemic-lupus-erythematosus
#18
Ming Zhao, Meng-Ying Li, Xiao-Fei Gao, Su-Jie Jia, Ke-Qin Gao, Yin Zhou, Hui-Hui Zhang, Yi Huang, Jing Wang, Hai-Jing Wu, Qian-Jin Lu
DNA hypomethylation plays an important role in the pathogenesis of systemic lupus erythematosus (SLE). Here we investigated whether 3-hydroxy butyrate dehydrogenase 2 (BDH2), a modulator of intracellular iron homeostasis, was involved in regulating DNA hypomethylation and hyper-hydroxymethylation in lupus CD4(+) T cells. Our results showed that BDH2 expression was decreased, intracellular iron was increased, global DNA hydroxymethylation level was elevated, while methylation level was reduced in lupus CD4(+) T cells compared with healthy controls...
November 4, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/29108855/hiv-patients-healthy-aging-and-transplant-recipients-can-reveal-the-hidden-footprints-of-cmv
#19
REVIEW
Shelley Waters, Emily Brook, Silvia Lee, Riwanti Estiasari, Ibnu Ariyanto, Patricia Price
Cytomegalovirus (CMV) is a β-herpesvirus. Latent infections are common in all populations. However age-associated increases in levels of CMV-reactive antibody are testament to a repeated reactivations and periods of viral replication. CMV has been associated with several diseases of aging, including vasculopathy and neurocognitive impairment. These conditions occur at a younger age in persons with particularly high burdens of CMV - transplant recipients and people living with HIV. Here we define the "clinical footprints" as immunopathologies triggered by CMV that develop over many years...
November 3, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/29108854/socs-1-ameliorates-smoke-inhalation-induced-acute-lung-injury-through-inhibition-of-ask-1-activity-and-disc-formation
#20
Leifang Zhang, Kairei Zhu, Yating Ma, Chenming Xu, Qiwen Shi, Xiaoming Chen, Weike Su, Hang Zhao
Smoke inhalation leads to acute lung injury (ALI), a devastating clinical problem associated with high mortality. Suppressor of cytokine signaling-1 (SOCS-1) is a negative regulator of apoptosis and pro-inflammatory cytokine signaling, two major contributors to the pathogenesis of ALI. We have found that SOCS-1 protects lung epithelial cells from smoke-induced apoptosis through two mechanisms. One is that SOCS-1 enhances degradation of ASK-1 and diminishes cleavage of pro-caspase-3 to repress smoke-triggered apoptosis in lung epithelial cells...
November 3, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
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