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Anti Th/To antibodies

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https://www.readbyqxmd.com/read/28904429/correlation-of-pretransplant-donor-specific-antibody-assay-using-luminex-crossmatch-with-graft-outcome-in-renal-transplant-patients
#1
M Vimal, M P Chacko, G Basu, D Daniel
The significance of pretransplant anti-human leukocyte antigen antibody levels that are detectable by more sensitive platforms (including the Luminex platform) yet undetected by complement-dependent cytotoxicity (CDC) assay remains unclear. The aim of this study was to determine the clinical significance of the donor-specific antibody (DSA) assay Luminex crossmatch and its impact on short-term renal graft outcome such as acute rejections, graft survival, and graft function. The results of pretransplant DSA-lymphocyte crossmatching (LCXM) assay in 126 renal allograft recipients whose CDCs crossmatches were negative were retrospectively analyzed for correlation with posttransplant outcomes...
September 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/28895863/a-monoclonal-antibody-for-detection-of-intracellular-and-secreted-interleukin-2-in-horses
#2
Heather Freer, Julia M Hillegas, Christine Wimer, Cynthia Baldwin, Joanna LaBresh, Bettina Wagner
Interleukin-2 (IL-2) is a T cell growth factor and major modulator of T helper (Th) cell differentiation. Here, we have developed and characterized a monoclonal antibody to equine IL-2 (anti-IL-2 mAb, clone 158-1). The IL-2 mAb detected rIL-2 by ELISA, intracellular staining and flow cytometry analysis and Western blotting. The IL-2 mAb was also paired with a polyclonal IL-2 detection antibody in both ELISA and a fluorescent bead-based assay. When these two assays were compared using identical reagents there was an improved analytical sensitivity (46pg/ml) and wider linear quantification range (46-100,000pg/ml) of IL-2 quantification using the fluorescent bead assay...
September 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/28875310/simultaneous-analysis-of-multiple-t-helper-subsets-in-leprosy-reveals-distinct-patterns-of-th1-th2-th17-and-tregs-markers-expression-in-clinical-forms-and-reactional-events
#3
Michelle de Campos Soriani Azevedo, Heloisa Marques, Larissa Sarri Binelli, Mariana Silva Vieira Malange, Amanda Carreira Devides, Eliane Aparecida Silva, Luciana Raquel Vincenzi Fachin, Cassio Cesar Ghidella, Cleverson Teixeira Soares, Gustavo Pompermaier Garlet, Patrícia Sammarco Rosa, Andrea de Farias Fernandes Belone, Ana Paula Favaro Trombone
Leprosy is a chronic infectious disease caused by Mycobacterium leprae. Previous studies have demonstrated that the difference among clinical forms of leprosy can be associated with the immune response of patients, mainly by T helper (Th) and regulatory T cells (Tregs). Then, aiming at clarifying the immune response, the expression of cytokines related to Th1, Th2, Th17 and Tregs profiles were evaluated by qPCR in 87 skin biopsies from leprosy patients. Additionally, cytokines and anti-PGL-1 antibodies were determined in serum by ELISA...
September 5, 2017: Medical Microbiology and Immunology
https://www.readbyqxmd.com/read/28846448/in-vitro-effects-of-melatonin-on-colonization-of-neonate-mouse-spermatogonial-stem-cells
#4
Shadan Navid, Tayebeh Rastegar, Maryam Baazm, Rafieh Alizadeh, Ali Talebi, Keykavos Gholami, Somayeh Khosravi-Farsani, Morteza Koruji, Mehdi Abbasi
We have recently reported that antioxidant supplements enhance the efficacy of cryopreserved spermatogonial stem cells. Melatonin is considered a free radical scavenger which has direct and indirect antioxidant effects in in vitro and in vivo microenvironments. Due to the anti-apoptotic properties of melatonin, researchers have proposed that melatonin may improve the efficiency of spermatogonial stem cell (SSC) transplantation. However, the appropriate methodology which facilitates SSC proliferation remains to be determined...
August 28, 2017: Systems Biology in Reproductive Medicine
https://www.readbyqxmd.com/read/28816516/vibrio-vulnificus-vvha-induces-th1-and-tfh-cells-to-proliferate-against-vibrio-vulnificus-in-a-mouse-model-of-infection
#5
Ming-Yi Wang, Xiao-Fei Liu, Jun Xia, Yu Li, Jian-Li Geng, Cheng-Jin Hu
AIM: To characterize the roles of VvhA in host's acquired immune response to Vibrio vulnificus infection. MATERIALS & METHODS: The recombinant VvhA fusion protein was used to immunize mice and the anti-VvhA polyclonal antibody was produced in vivo for prophylactic and therapeutic efficacy assay. The roles of VvhA in T helper (Th) cells differentiation were analyzed by vvhA-deleted mutant during the early phase of infection, while the ratio of Th2 and T follicular helper (Tfh) cells were examined in VvhA immunization...
August 17, 2017: Future Microbiology
https://www.readbyqxmd.com/read/28789710/transplanted-human-fecal-microbiota-enhanced-guillain-barr%C3%A3-syndrome-autoantibody-responses-after-campylobacter-jejuni-infection-in-c57bl-6-mice
#6
Phillip T Brooks, Kelsey A Brakel, Julia A Bell, Christopher E Bejcek, Trey Gilpin, Jean M Brudvig, Linda S Mansfield
BACKGROUND: Campylobacter jejuni is the leading antecedent infection to the autoimmune neuropathy Guillain-Barré syndrome (GBS), which is accompanied by an autoimmune anti-ganglioside antibody attack on peripheral nerves. Previously, we showed that contrasting immune responses mediate C. jejuni induced colitis and autoimmunity in interleukin-10 (IL-10)-deficient mice, dependent upon the infecting strain. Strains from colitis patients elicited T helper 1 (TH1)-dependent inflammatory responses while strains from GBS patients elicited TH2-dependent autoantibody production...
August 8, 2017: Microbiome
https://www.readbyqxmd.com/read/28771712/organization-of-alpha-transducin-immunoreactive-system-in-the-brain-and-retina-of-larval-and-young-adult-sea-lamprey-petromyzon-marinus-and-their-relationship-with-other-neural-systems
#7
Antón Barreiro-Iglesias, Blanca Fernández-López, Daniel Sobrido-Cameán, Ramón Anadón
We employed an anti-transducin antibody (Gαt-S), in combination with other markers, to characterize the Gαt-S-immunoreactive (ir) system in the CNS of the sea lamprey, Petromyzon marinus. Gαt-S immunoreactivity was observed in some neuronal populations and numerous fibers distributed throughout the brain. Double Gαt-S- and opsin-ir neurons (putative photoreceptors) are distributed in the hypothalamus (postoptic commissure nucleus, dorsal and ventral hypothalamus) and caudal diencephalon, confirming results of García-Fernández et al...
August 2, 2017: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/28761239/sequential-autologous-hematopoietic-stem-cell-transplant-followed-by-renal-transplant-in-multiple-myeloma
#8
D Bhowmik, S Yadav, L Kumar, S Agarwal, S K Agarwal, S Gupta
A 30-year-old female was symptomatic with headache, fatigue, and weakness since October 2011 and was told to have anemia. In January 2012, she was admitted outside with pulmonary edema. Investigations revealed advanced azotemia, anemia, and hypercalcemia. Urine showed 2 + proteins and 30-35 red blood cells. There was no history of oral ulcers, rash, Raynaud's phenomenon, or hemoptysis. She was evaluated for causes of rapidly progressive "renal failure." Hemolytic work-up; antinuclear antibody, double-stranded DNA, and anti-neutrophil cytoplasmic antibody were negative...
July 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/28743289/inhibition-of-t-cell-mediated-inflammation-in-uveitis-by-a-novel-anti-cd3-antibody
#9
Sunao Sugita, Jun Shimizu, Kenichi Makabe, Hiroshi Keino, Takeshi Watanabe, Masayo Takahashi
BACKGROUND: A novel anti-mouse CD3ε antibody, Dow2, recognizes mouse CD3ε without activating T cells and suppresses T-cell activation. The purpose of this study was to determine whether Dow2 can inhibit T cells in uveitis. METHODS: Experimental autoimmune uveitis (EAU) was induced in mice by immunization with retinal peptides, followed by administration of Dow2. Inflammation was evaluated by color fundus photography, optical coherence tomography, fluorescein angiography, and histology...
July 25, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28710773/reciprocal-modulation-of-helper-th1-and-th17-cells-by-the-%C3%AE-2-adrenergic-receptor-agonist-drug-terbutaline
#10
Catalina M Carvajal Gonczi, Mahdieh Tabatabaei Shafiei, Ashley East, Erika Martire, Meagane H I Maurice-Ventouris, Peter J Darlington
Catecholamine hormones are powerful regulators of the immune system produced by the sympathetic nervous system (SNS). They regulate the adaptive immune system by altering T-cell differentiation into T helper (Th) 1 and Th2 cell subsets, but the effect on Th17 cells is not known. Th17 cells, defined, in part, by chemokine receptor CCR6 and cytokine interleukin (IL)-17A, are crucial for mediating certain pathogen-specific responses and are linked with several autoimmune diseases. We demonstrated that a proportion of human Th17 cells express beta 2-adrenergic receptor (β2AR), a G protein-coupled receptor that responds to catecholamines...
July 15, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28702462/adoptive-cell-therapy-of-induced-regulatory-t-cells-expanded-by-tolerogenic-dendritic-cells-on-murine-autoimmune-arthritis
#11
Jie Yang, Lidong Liu, Yiming Yang, Ning Kong, Xueyu Jiang, Juan Sun, Rufeng Xie
OBJECTIVE: Tolerogenic dendritic cells (tDCs) can expand TGF-β-induced regulatory T cells (iTregs); however, the therapeutic utility of these expanded iTregs in autoimmune diseases remains unknown. We sought to determine the properties of iTregs expanded by mature tolerogenic dendritic cells (iTregmtDC) in vitro and explore their potential to ameliorate collagen-induced arthritis (CIA) in a mouse model. METHODS: After induction by TGF-β and expansion by mature tDCs (mtDCs), the phenotype and proliferation of iTregmtDC were assessed by flow cytometry...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28698517/the-plasticity-of-th17-cells-in-the-pathogenesis-of-rheumatoid-arthritis
#12
REVIEW
Shigeru Kotake, Toru Yago, Tsuyoshi Kobashigawa, Yuki Nanke
Helper T (Th) cells play an important role in the pathogenesis of autoimmune diseases, including rheumatoid arthritis (RA). It has been revealed that Th17 cells can shift to Th1 cells (i.e., "nonclassic Th1 cells"), which are reported to be more pathogenic than Th17 cells per se. Thus, the association of Th cells in the pathogenesis of autoimmune disease has become more complicated. We recently reported using peripheral blood from untreated and early-onset RA patients that the ratio of CD161+Th1 cells (i.e...
July 10, 2017: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/28670717/emerging-role-of-interleukin-31-and-interleukin-31-receptor-in-pruritus-in-atopic-dermatitis
#13
REVIEW
Masutaka Furue, Kazuhiko Yamamura, Makiko Kido-Nakahara, Takeshi Nakahara, Yoshinori Fukui
Atopic dermatitis (AD) is a chronic or chronically relapsing, eczematous, severely pruritic skin disorder associated with skin barrier dysfunction. The lesional skin of AD exhibits T helper 2 (TH 2)-deviated immune reactions. Interleukin-31 (IL-31), preferentially produced from TH 2 cells, is a potent pruritogenic cytokine, and its systemic and local administration induces scratching behavior in rodents, dogs and monkeys. Recent clinical trials have revealed that administration of an anti-IL-31 receptor antibody significantly alleviates pruritus in patients with AD...
July 3, 2017: Allergy
https://www.readbyqxmd.com/read/28622860/immunogenicity-of-t7-bacteriophage-nanoparticles-displaying-g-h-loop-of-foot-and-mouth-disease-virus-fmdv
#14
Hai Xu, Xi Bao, Yu Lu, Yamei Liu, Bihua Deng, Yiwei Wang, Yue Xu, Jibo Hou
Foot-and-mouth disease (FMD) is a highly contagious disease of cloven-hoofed animals that causes severe economic losses worldwide. The G-H loop of the FMDV VP1 structural protein is the major neutralizing antigenic site. However, a fully protective G-H loop peptide vaccine requires the addition of promiscuous Th sites from a source outside VP1. Thus, we demonstrated the potential of T7 bacteriophage based nanoparticles displaying a genetically fused G-H loop peptide (T7-GH) as a FMDV vaccine candidate. Recombinant T7-GH phage was constructed by inserting the G-H loop coding region into the T7 Select 415-1b vector...
June 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28616446/treatment-with-anti-fc%C3%AE%C2%B5ri%C3%AE-antibody-exacerbates-eae-and-t-cell-immunity-against-myelin
#15
Silvia Musio, Massimo Costanza, Pietro Luigi Poliani, Elena Fontana, Manuela Cominelli, Gabriella Abolafio, Lawrence Steinman, Rosetta Pedotti
OBJECTIVE: To investigate the effects of targeting the high-affinity receptor for immunoglobulin E (FcεRI), that plays a central role in allergic responses and is constitutively expressed on mast cells and basophils, in clinical disease and autoimmune T-cell response in experimental MS. METHODS: Experimental autoimmune encephalomyelitis (EAE) was induced in C57BL/6 mice by immunization with myelin oligodendrocyte glycoprotein 35-55. Anti-FcεRI α-chain antibody was administered intraperitoneally...
May 2017: Neurology® Neuroimmunology & Neuroinflammation
https://www.readbyqxmd.com/read/28593439/clinical-and-histopathological-amelioration-of-experimental-autoimmune-encephalomyelitis-by-aav-vectors-expressing-a-soluble-interleukin-23-receptor
#16
Marta Miralles, Herena Eixarch, Marcos Tejero, Carme Costa, Keiji Hirota, A Raul Castaño, Meritxell Puig, Gitta Stockinger, Xavier Montalban, Assumpció Bosch, Carmen Espejo, Miguel Chillon
The role of the T helper (Th)17 pathway has been clearly demonstrated in the onset and progression of autoimmune diseases, where interleukin (IL)-23 is a key molecule in maintaining the response mediated by Th17 cells. As a consequence, recent strategies based on blocking the interaction between IL-23 and its receptor (IL-23R), for example the anti-p19 antibody tildrakizumab, have been developed to regulate the Th17 pathway from the initial stages of the disease. Here, a soluble (s)IL-23R cDNA was cloned in expression plasmids and viral vectors...
June 7, 2017: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/28592426/a-nonadjuvanted-igg2a-monoclonal-antibody-against-nucleosomes-elicits-potent-t-cell-dependent-idiotype-specific-igg1-responses-and-glomerular-igg1-igg2a-deposits-in-normal-mice
#17
Kristian Hannestad, Helge Scott
Idiotypes (Ids) are unique epitopes of Ab V regions and can trigger anti-Id immune responses, but immunization with several nonadjuvanted isologous IgG mAbs has induced tolerance to their Ids. We immunized non-lupus-prone mice with 11 allotype "a" of IgG2a (IgG2a(a)) and 4 IgG2c nonadjuvanted, isologous mAbs purified from serum-free medium. Of five IgG2a(a) mAbs with specificity for nucleosomes, the repeating histone-DNA subunit of chromatin, four elicited an IgG1 anti-mAb response and one mAb was nonimmunogenic...
June 7, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28588755/role-of-pro-and-anti-inflammatory-phenomena-in-the-physiopathology-of-type-2-diabetes-and-obesity
#18
REVIEW
Luciano Pirola, José Candido Ferraz
In obesity, persistent low-grade inflammation is considered as a major contributor towards the progression to insulin resistance and type 2 diabetes while in lean subjects the immune environment is non-inflammatory. Massive adipose tissue (AT) infiltration by pro-inflammatory M1 macrophages and several T cell subsets as obesity develops leads to the accumulation - both in the AT and systemically - of numerous pro-inflammatory cytokines, including interleukin-1β (IL-1β), tumor necrosis factor α, IL-17 and IL-6 which are strongly associated with the progression of the obese phenotype towards the metabolic syndrome...
May 26, 2017: World Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28584279/serum-hepatitis-b-core-antibody-as-a-biomarker-of-hepatic-inflammation-in-chronic-hepatitis-b-patients-with-normal-alanine-aminotransferase
#19
Jiyuan Zhou, Liuwei Song, Hong Zhao, Linlin Yan, Anlin Ma, Shibin Xie, Xuqing Zhang, Dazhi Zhang, Qing Xie, Guo Zhang, Jia Shang, Jun Cheng, Weifeng Zhao, Zhiqiang Zou, Mingxiang Zhang, Ningshao Xia, Guiqiang Wang
Our previous studies unexpectedly indicated that the level of serum hepatitis B core antibody (anti-HBc) was positively correlated with the serum alanine aminotransferase (ALT) level. The aim of this study was to determine whether anti-HBc could serve as a potential biomarker for the detection of liver inflammation in chronic hepatitis B (CHB) patients, especially in patients with normal ALT levels. Serum anti-HBc levels were quantified in 655 treatment-naïve CHB patients, including 45 patients who underwent two liver biopsies (baseline phase and the 78(th) weeks of antiviral-treatment)...
June 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28542275/combination-of-the-immunization-with-the-sequence-close-to-the-consensus-sequence-and-two-dna-prime-plus-one-vlp-boost-generate-h5-hemagglutinin-specific-broad-neutralizing-antibodies
#20
Guiqin Wang, Renfu Yin, Paul Zhou, Zhuang Ding
Hemagglutinin (HA) head has long been considered to be able to elicit only a narrow, strain-specific antibody response as it undergoes rapid antigenic drift. However, we previously showed that a heterologous prime-boost strategy, in which mice were primed twice with DNA encoding HA and boosted once with virus-like particles (VLP) from an H5N1 strain A/Thailand/1(KAN)-1/2004 (noted as TH DDV), induced anti-head broad cross-H5 neutralizing antibody response. To explain why TH DDV immunization could generate such breadth, we systemically compared the neutralization breadth and potency between TH DDV sera and immune sera elicited by TH DDD (three times of DNA immunizations), TH VVV (three times of VLP immunizations), TH DV (one DNA prime plus one VLP boost) and TK DDV (plasmid DNA and VLP derived from another H5N1 strain, A/Turkey/65596/2006)...
2017: PloS One
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