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Journal of Immunology Research

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https://www.readbyqxmd.com/read/28428965/natural-killer-cells-in-the-orchestration-of-chronic-inflammatory-diseases
#1
REVIEW
Luca Parisi, Barbara Bassani, Marco Tremolati, Elisabetta Gini, Giampietro Farronato, Antonino Bruno
Inflammation, altered immune cell phenotype, and functions are key features shared by diverse chronic diseases, including cardiovascular, neurodegenerative diseases, diabetes, metabolic syndrome, and cancer. Natural killer cells are innate lymphoid cells primarily involved in the immune system response to non-self-components but their plasticity is largely influenced by the pathological microenvironment. Altered NK phenotype and function have been reported in several pathological conditions, basically related to impaired or enhanced toxicity...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28424792/sustained-high-levels-of-both-total-and-high-molecular-weight-adiponectin-in-plasma-during-the-convalescent-phase-of-haemorrhagic-fever-with-renal-syndrome-are-associated-with-disease-severity
#2
Kang Tang, Chunmei Zhang, Yusi Zhang, Yun Zhang, Ran Zhuang, Boquan Jin, Ying Ma
Haemorrhagic fever with renal syndrome (HFRS) is characterised by an uncontrolled immune response that causes vascular leakage. Adiponectin (APN) is an adipocytokine involved in prorevascularisation and immunomodulation. To investigate the possible effects of APN in the pathogenesis of HFRS, total and high molecular weight (HMW) APN levels in the plasma of patients with HFRS were quantified using enzyme-linked immunosorbent assay (ELISA). Compared with those in healthy controls, the plasma total and HMW APN levels in patients were elevated to different degrees from the fever onset and remained high at the convalescent phase...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28393080/gene-expression-profiles-of-human-phosphotyrosine-phosphatases-consequent-to-th1-polarisation-and-effector-function
#3
Patricia Castro-Sánchez, Rocio Ramirez-Munoz, Pedro Roda-Navarro
Phosphotyrosine phosphatases (PTPs) constitute a complex family of enzymes that control the balance of intracellular phosphorylation levels to allow cell responses while avoiding the development of diseases. Despite the relevance of CD4 T cell polarisation and effector function in human autoimmune diseases, the expression profile of PTPs during T helper polarisation and restimulation at inflammatory sites has not been assessed. Here, a systematic analysis of the expression profile of PTPs has been carried out during Th1-polarising conditions and upon PKC activation and intracellular raise of Ca(2+) in effector cells...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28386570/pathogenic-roles-of-glutamic-acid-decarboxylase-65-autoantibodies-in-cerebellar-ataxias
#4
REVIEW
Hiroshi Mitoma, Mario Manto, Christiane S Hampe
Reports suggesting a pathogenic role of autoantibodies directed against glutamic acid decarboxylase 65 (GAD65Abs) in cerebellar ataxias (CAs) are reviewed, and debatable issues such as internalization of antibodies by neurons and roles of epitopes are discussed. GAD65 is one of two enzymes that catalyze the conversion of glutamate to the inhibitory neurotransmitter gamma-aminobutyric acid (GABA). A pathogenic role of GAD65Ab in CAs is suggested by in vivo and in vitro studies. (1) Intracerebellar administration of cerebrospinal fluid (CSF) immunoglobulins (IgGs) obtained from GAD65Ab-positive CA patients impairs cerebellar modulation of motor control in rats...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28373996/not-all-antibodies-are-created-equal-factors-that-influence-antibody-mediated-rejection
#5
REVIEW
Carrie L Butler, Nicole M Valenzuela, Kimberly A Thomas, Elaine F Reed
Consistent with Dr. Paul Terasaki's "humoral theory of rejection" numerous studies have shown that HLA antibodies can cause acute and chronic antibody mediated rejection (AMR) and decreased graft survival. New evidence also supports a role for antibodies to non-HLA antigens in AMR and allograft injury. Despite the remarkable efforts by leaders in the field who pioneered single antigen bead technology for detection of donor specific antibodies, a considerable amount of work is still needed to better define the antibody attributes that are associated with AMR pathology...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28373995/dickkopf-1-is-a-biomarker-for-systemic-lupus-erythematosus-and-active-lupus-nephritis
#6
Jing Xue, Jiali Yang, Lijuan Yang, Shaolan Zhou, Chen Ji, Xuemei Wang, Nan Yu, Xiaoming Liu, Shuhong Chi
An early diagnosis of lupus nephritis (LN) has an important clinical implication in guiding treatments of systemic lupus erythematosus (SLE) in clinical settings. In this study, the concentrations of Wnt-3A, Frizzled-8 (FZD-8), and Dickkopf-1 (DKK-1) of Wnt signaling, as well as their diagnostic values for accessing LN, were evaluated by ELISA in sera and urine of 111 SLE patients (31 with LN and 80 without LN) and 70 healthy cohorts. Significantly more abundances of DKK-1 protein were determined in both of sera and urine of SLE patients compared to healthy cohorts (p < 0...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28373994/neutrophil-extracellular-traps-and-microcrystals
#7
REVIEW
Balázs Rada
Neutrophil extracellular traps represent a fascinating mechanism by which PMNs entrap extracellular microbes. The primary purpose of this innate immune mechanism is thought to localize the infection at an early stage. Interestingly, the ability of different microcrystals to induce NET formation has been recently described. Microcrystals are insoluble crystals with a size of 1-100 micrometers that have different composition and shape. Microcrystals have it in common that they irritate phagocytes including PMNs and typically trigger an inflammatory response...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28367457/comparative-assessment-of-cytokine-pattern-in-early-and-late-onset-of-neonatal-sepsis
#8
Kh S Khaertynov, S V Boichuk, S F Khaiboullina, V A Anokhin, A A Andreeva, V C Lombardi, M A Satrutdinov, E A Agafonova, A A Rizvanov
Neonatal sepsis is a significant health issue associated with high mortality. Immune responses associated with neonatal sepsis, such as proinflammatory cytokine production, are believed to play a central role in the pathogenesis of this disease. In the present study, serum levels of the proinflammatory cytokines TNF-α, IL1-β, and IL-6 and the anti-inflammatory cytokines IL-4 and IL-10 were evaluated for 25 subjects with neonatal sepsis. We observed that subjects with late onset of sepsis (LOS), as well as those with early onset of sepsis (EOS), had a substantial increase in serum TNF-α...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28367456/synthetic-peptides-as-potential-antigens-for-cutaneous-leishmaniosis-diagnosis
#9
Juliana Seger Link, Silvana Maria Alban, Carlos Ricardo Soccol, Gilberto Vinicius Melo Pereira, Vanete Thomaz Soccol
This work's goal was to research new candidate antigens for cutaneous leishmaniosis (CL). In order to reach the goal, we used random peptide phage display libraries screened using antibodies from Leishmania braziliensis patients. After selection, three peptides (P1, P2, and P3) were synthesized using Fmoc chemistry. The peptides individually or a mixture of them (MIX) was subsequently emulsified in complete and incomplete Freund's adjuvant and injected subcutaneously in golden hamsters. Sera from the hamsters administered with P1 presented antibodies that recognized proteins between 76 and 150 kDa from L...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28367455/secreted-interferon-inducible-factors-restrict-hepatitis-b-and-c-virus-entry-in-vitro
#10
Yuchen Xia, Xiaoming Cheng, Christoph K Blossey, Karin Wisskirchen, Knud Esser, Ulrike Protzer
Interferon-α (IFN-α) has been used for more than 20 years as the first-line therapy for hepatitis B virus (HBV) and hepatitis C virus (HCV) infection, because it has a number of antiviral effects. In this study, we describe a novel mode of its antiviral action. We demonstrate that the supernatant from IFN-α-treated cultured cells restricted HBV and HCV infection by inhibiting viral entry into hepatoma cells. The factors contained in the supernatant competed with the virus for binding to heparan glycosaminoglycans-the nonspecific attachment step shared by HBV and HCV...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28367454/effects-of-vitamin-b6-deficiency-on-the-composition-and-functional-potential-of-t-cell-populations
#11
Bingjun Qian, Shanqi Shen, Jianhua Zhang, Pu Jing
The immune system is critical in preventing infection and cancer, and malnutrition can weaken different aspects of the immune system to undermine immunity. Previous studies suggested that vitamin B6 deficiency could decrease serum antibody production with concomitant increase in IL4 expression. However, evidence on whether vitamin B6 deficiency would impair immune cell differentiation, cytokines secretion, and signal molecule expression involved in JAK/STAT signaling pathway to regulate immune response remains largely unknown...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28367453/de-novo-donor-specific-hla-antibodies-developing-early-or-late-after-transplant-are-associated-with-the-same-risk-of-graft-damage-and-loss-in-nonsensitized-kidney-recipients
#12
Michela Cioni, Arcangelo Nocera, Annalisa Innocente, Augusto Tagliamacco, Antonella Trivelli, Sabrina Basso, Giuseppe Quartuccio, Iris Fontana, Alberto Magnasco, Francesca Drago, Antonella Gurrado, Ilaria Guido, Francesca Compagno, Giacomo Garibotto, Catherine Klersy, Enrico Verrina, Gian Marco Ghiggeri, Massimo Cardillo, Patrizia Comoli, Fabrizio Ginevri
De novo posttransplant donor-specific HLA-antibody (dnDSA) detection is now recognized as a tool to identify patients at risk for antibody-mediated rejection (AMR) and graft loss. It is still unclear whether the time interval from transplant to DSA occurrence influences graft damage. Utilizing sera collected longitudinally, we evaluated 114 consecutive primary pediatric kidney recipients grafted between 2002 and 2013 for dnDSA occurrence by Luminex platform. dnDSAs occurred in 39 patients at a median time of 24...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28352642/the-expression-of-il-6-tnf-%C3%AE-and-mcp-1-in-respiratory-viral-infection-in-acute-exacerbations-of-chronic-obstructive-pulmonary-disease
#13
Jingtong Zheng, Yue Shi, Lingxin Xiong, Weijie Zhang, Ying Li, Peter G Gibson, Jodie L Simpson, Chao Zhang, Junying Lu, Jingying Sai, Guoqiang Wang, Fang Wang
Viral infection is a common trigger for acute exacerbations of chronic obstructive pulmonary disease (AECOPD). The aim of this study is to investigate the expression of cytokines in AECOPD. Patients with AECOPD requiring hospitalization were recruited. Meanwhile healthy volunteers of similar age that accepted routine check-ups and showed no clinical symptoms of inflammatory diseases were also recruited. Induced sputum and serum were collected. Induced sputum of participants was processed and tested for thirteen viruses and bacteria...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28352641/cardiac-function-remains-impaired-despite-reversible-cardiac-remodeling-after-acute-experimental-viral-myocarditis
#14
Peter Moritz Becher, Frauke Gotzhein, Karin Klingel, Felicitas Escher, Stefan Blankenberg, Dirk Westermann, Diana Lindner
Background. Infection with Coxsackievirus B3 induces myocarditis. We aimed to compare the acute and chronic phases of viral myocarditis to identify the immediate effects of cardiac inflammation as well as the long-term effects after resolved inflammation on cardiac fibrosis and consequently on cardiac function. Material and Methods. We infected C57BL/6J mice with Coxsackievirus B3 and determined the hemodynamic function 7 as well as 28 days after infection. Subsequently, we analyzed viral burden and viral replication in the cardiac tissue as well as the expression of cytokines and matrix proteins...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28349073/deptor-mtor-signaling-is-critical-for-lipid-metabolism-and-inflammation-homeostasis-of-lymphocytes-in-human-pbmc-culture
#15
Qi-Bing Xie, Yan Liang, Min Yang, Yuan Yang, Xiao-Min Cen, Geng Yin
Abnormal immune response of the body against substances and tissues causes autoimmune diseases, such as polymyositis, dermatomyositis, and rheumatoid arthritis. Irregular lipid metabolism and inflammation may be a significant cause of autoimmune diseases. Although much progress has been made, mechanisms of initiation and proceeding of metabolic and inflammatory regulation in autoimmune disease have not been well-defined. And novel markers for the detection and therapy of autoimmune disease are urgent. mTOR signaling is a central regulator of extracellular metabolic and inflammatory processes, while DEP domain-containing mTOR-interacting protein (DEPTOR) is a natural inhibitor of mTOR...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28331857/thrombosis-neuroinflammation-and-poststroke-infection-the-multifaceted-role-of-neutrophils-in-stroke
#16
REVIEW
Johanna Ruhnau, Juliane Schulze, Alexander Dressel, Antje Vogelgesang
Immune cells can significantly predict and affect the clinical outcome of stroke. In particular, the neutrophil-to-lymphocyte ratio was shown to predict hemorrhagic transformation and the clinical outcome of stroke; however, the immunological mechanisms underlying these effects are poorly understood. Neutrophils are the first cells to invade injured tissue following focal brain ischemia. In these conditions, their proinflammatory properties enhance tissue damage and may promote ischemic incidences by inducing thrombus formation...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28331856/the-immunogenicity-of-hla-class-ii-mismatches-the-predicted-presentation-of-nonself-allo-hla-derived-peptide-by-the-hla-dr-phenotype-of-the-recipient-is-associated-with-the-formation-of-dsa
#17
Vadim Jucaud
The identification of permissible HLA class II mismatches can prevent DSA in mismatched transplantation. The HLA-DR phenotype of recipients contributes to DSA formation by presenting allo-HLA-derived peptides to T-helper cells, which induces the differentiation of B cells into plasma cells. Comparing the binding affinity of self and nonself allo-HLA-derived peptides for recipients' HLA class II antigens may distinguish immunogenic HLA mismatches from nonimmunogenic ones. The binding affinities of allo-HLA-derived peptides to recipients' HLA-DR and HLA-DQ antigens were predicted using the NetMHCIIpan 3...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28326334/bactericide-immunomodulating-and-wound-healing-properties-of-transgenic-kalanchoe-pinnata-synergize-with-antimicrobial-peptide-cecropin-p1-in-vivo
#18
COMPARATIVE STUDY
A A Lebedeva, N S Zakharchenko, E V Trubnikova, O A Medvedeva, T V Kuznetsova, G A Masgutova, M V Zylkova, Y I Buryanov, A S Belous
Procedure of manufacturing K. pinnata water extracts containing cecropin P1 (CecP1) from the formerly described transgenic plants is established. It included incubation of leaves at +4°C for 7 days, mechanical homogenization of leaves using water as extraction solvent, and heating at +70°C for inactivating plant enzymes. Yield of CecP1 (after heating and sterilizing filtration) was 0.3% of total protein in the extract. The water extract of K. pinnata + CecP1 exhibits favorable effect on healing of wounds infected with S...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28321419/pvaxhsp65-vaccination-primes-for-high-il-10-production-and-decreases-experimental-encephalomyelitis-severity
#19
Sofia Fernanda Gonçalves Zorzella-Pezavento, Fernanda Chiuso-Minicucci, Thais Graziela Donegá França, Larissa Lumi Watanabe Ishikawa, Larissa Camargo da Rosa, Priscila Maria Colavite, Bianca Balbino, Camila Marques, Maura Rosane Valerio Ikoma, Ana Paula Masson, Célio Lopes Silva, Alexandrina Sartori
Experimental autoimmune encephalomyelitis (EAE) is a demyelinating pathology of the central nervous system (CNS) used as a model to study multiple sclerosis immunopathology. EAE has also been extensively employed to evaluate potentially therapeutic schemes. Considering the presence of an immune response directed to heat shock proteins (hsps) in autoimmune diseases and the immunoregulatory potential of these molecules, we evaluated the effect of a previous immunization with a genetic vaccine containing the mycobacterial hsp65 gene on EAE development...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28321418/ana-iif-automation-moving-towards-harmonization-results-of-a-multicenter-study
#20
MULTICENTER STUDY
Stefanie Van den Bremt, Sofie Schouwers, Marjan Van Blerk, Lieve Van Hoovels
Background. Our study aimed to investigate whether the introduction of automated anti-nuclear antibody (ANA) indirect immunofluorescence (IIF) analysis decreases the interlaboratory variability of ANA titer results. Method. Three serum samples were sent to 10 laboratories using the QUANTA-Lyser® in combination with the NOVA View®. Each laboratory performed the ANA IIF analysis 10x in 1 run and 1x in 10 different runs and determined the endpoint titer by dilution. One of the three samples had been sent in 2012, before the era of ANA IIF automation, by the Belgian National External Quality Assessment (EQA) Scheme...
2017: Journal of Immunology Research
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