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Anti Th/To antibodies

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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
#1
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
#2
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
#3
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
#4
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
#5
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. 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 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 β2-adrenergic receptor, 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
#6
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
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
https://www.readbyqxmd.com/read/28537884/a-cancer-vaccine-based-on-fluorine-modified-sialyl-tn-induces-robust-immune-responses-in-a-murine-model
#16
Chengcheng Song, Xiu-Jing Zheng, Chang-Cheng Liu, Yifa Zhou, Xin-Shan Ye
Development of an effective vaccine to target tumor associated carbohydrate antigens, aberrantly expressed on the cell surface of various carcinomas, is an appealing approach toward cancer immunotherapy. However, a major problem of carbohydrate antigens is their poor immunogenicity. Immunization with modified-carbohydrate antigens could improve the immunogenicity and induce cross reaction with the native carbohydrate antigens. In this study, we investigated the antitumor ability of three fluoro-substituted sialyl-Tn (STn) analogues (2, 3, 4) coupled to KLH (keyhole limpet hemocyanin) and studied the mechanism of tumor immunotherapy of the vaccines in a murine model of colon cancer...
July 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28512676/different-fermentation-processes-produced-variants-of-an-anti-cd52-monoclonal-antibody-that-have-divergent-in-vitro-and-in-vivo-characteristics
#17
Chao Zhuang, Chen Zheng, Yantian Chen, Zheng Huang, Yanchao Wang, Qiang Fu, Chen Zeng, Tong Wu, Liming Yang, Nianmin Qi
The anti-CD52 antibody has already been approved for the treatment of patients with resistant chronic lymphocytic leukemia, relapsing-remitting multiple sclerosis, and has demonstrable efficacy against stem cell transplantation rejection. A CHO cell line expressing a humanized anti-CD52 monoclonal antibody (mAb-TH) was cultivated in both fed-batch and perfusion modes, and then purified. The critical quality attributes of these mAb variants were characterized and the pharmacokinetics (PK) properties were investigated...
May 16, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28477188/polarizing-cytokines-for-human-th9-cell-differentiation
#18
Prabhakar Putheti
CD4+ T helper (Th) cell subset generation in vivo requires T cell receptor activation and surface CD28 co-stimulation in the presence of one or more cytokines. Similarly, Th cells can be generated in vitro by activating naïve CD4+CD25- T cells with plate bound-anti-CD3 monoclonal antibody (mAb) (pbCD3) and soluble-anti-CD28 mAb (sCD28) in the presence of polarizing recombinant (r) cytokines and anti-cytokine mAbs. In comparison to in vitro CD4+CD25- T cells, memory CD4+CD25-CD45RO+ T cells have been shown to convert to Th9 cells more efficiently...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28473895/pathogenicity-study-of-iranian-genotype-of-avian-infectious-bronchitis-virus-ir-1
#19
Hamideh Najafi, Arash Ghalyanchi Langeroudi, Masoud Hashemzadeh, Vahid Karimi, Omid Madadgar, Reza Khaltabadi Farahani, Seyed Ali Ghafouri, Hossein Maghsoudloo, Parvaneh Seifouri, Ali Madhi
Avian infectious bronchitis (IB) is a major cause of economic losses in poultry industry. The IB virus primarily affects respiratory tract, but various strains differ in their tropism for other target organs such as kidney and alimentary tract. The objective of this study was to estimate the pathogenicity of Iranian IBV variant (IR-1), which is limited exclusively to Iran. Specific pathogen free chicks were inoculated intranasally. Sera, fecal swabs and different tissue samples were collected on different days post infection (DPI)...
2017: Veterinary Research Forum
https://www.readbyqxmd.com/read/28435909/self-assembled-particulate-psaa-as-vaccine-against-streptococcus-pneumoniae-infection
#20
Majela González-Miro, Laura Rodríguez-Noda, Mildrey Fariñas-Medina, Dagmar García-Rivera, Vicente Vérez-Bencomo, Bernd H A Rehm
Streptococcus pneumoniae is a human pathogen responsible for the majority of childhood pneumonia and media otitis cases worldwide. The diversity of its capsular polysaccharides (CPS) results in more than 91 serotypes of which at least 23 are virulent. Various CPS conjugated to immunogenic carrier proteins are currently licensed and provide protection against the infection caused by the respective serotypes but not against new and emerging virulent serotypes. In this study, we considered the conserved protein antigen PsaA, the pneumococcal surface adhesin A, in order to overcome the limitations of CPS antigens...
April 2017: Heliyon
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