keyword
MENU ▼
Read by QxMD icon Read
search

OX40L

keyword
https://www.readbyqxmd.com/read/28818832/b-cell-ox40l-supports-t-follicular-helper-cell-development-and-contributes-to-sle-pathogenesis
#1
Andrea Cortini, Ursula Ellinghaus, Talat H Malik, Deborah S Cunningham Grahman, Marina Botto, Timothy James Vyse
OBJECTIVES: TNFSF4 (encodes OX40L) is a susceptibility locus for systemic lupus erythematosus (SLE). Risk alleles increase TNFSF4 expression in cell lines, but the mechanism linking this effect to disease is unclear, and the OX40L-expressing cell types mediating the risk are not clearly established. Blockade of OX40L has been demonstrated to reduce disease severity in several models of autoimmunity, but not in SLE. We sought to investigate its potential therapeutic role in lupus. METHODS: We used a conditional knockout mouse system to investigate the function of OX40L on B and T lymphocytes in systemic autoimmunity...
August 17, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28747670/pkc-%C3%B1-is-dispensable-for-ox40l-induced-tcr-independent-treg-proliferation-but-contributes-by-enabling-il-2-production-from-effector-t-cells
#2
Khaled Alharshawi, Alejandra Marinelarena, Prabhakaran Kumar, Osama El-Sayed, Palash Bhattacharya, Zuoming Sun, Alan L Epstein, Ajay V Maker, Bellur S Prabhakar
We have previously shown that OX40L/OX40 interaction is critical for TCR-independent selective proliferation of Foxp3(+) Tregs, but not Foxp3(-) effector T-cells (Teff), when CD4(+) T-cells are co-cultured with GM-CSF derived bone marrow dendritic cells (G-BMDCs). Events downstream of OX40L/OX40 interaction in Tregs responsible for this novel mechanism are not understood. Earlier, OX40L/OX40 interaction has been shown to stimulate CD4(+) T-cells through the formation of a signalosome involving TRAF2/PKC-Ѳ leading to NF-kB activation...
July 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28696253/the-ox40-ox40-ligand-pathway-promotes-pathogenic-th-cell-responses-plasmablast-accumulation-and-lupus-nephritis-in-nzb-w-f1-mice
#3
Jonathan Sitrin, Eric Suto, Arthur Wuster, Jeffrey Eastham-Anderson, Jeong M Kim, Cary D Austin, Wyne P Lee, Timothy W Behrens
Ox40 ligand (Ox40L) locus genetic variants are associated with the risk for systemic lupus erythematosus (SLE); however, it is unclear how Ox40L contributes to SLE pathogenesis. In this study, we evaluated the contribution of Ox40L and its cognate receptor, Ox40, using in vivo agonist and antagonist approaches in the NZB × NZW (NZB/W) F1 mouse model of SLE. Ox40 was highly expressed on several CD4 Th cell subsets in the spleen and kidney of diseased mice, and expression correlated with disease severity. Treatment of aged NZB/W F1 mice with agonist anti-Ox40 mAbs potently exacerbated renal disease, which was accompanied by activation of kidney-infiltrating T cells and cytokine production...
July 10, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28599652/regulatory-t-cells-in-multiple-sclerosis-and-myasthenia-gravis
#4
REVIEW
K M Danikowski, S Jayaraman, B S Prabhakar
Multiple sclerosis (MS) is a chronic debilitating disease of the central nervous system primarily mediated by T lymphocytes with specificity to neuronal antigens in genetically susceptible individuals. On the other hand, myasthenia gravis (MG) primarily involves destruction of the neuromuscular junction by antibodies specific to the acetylcholine receptor. Both autoimmune diseases are thought to result from loss of self-tolerance, which allows for the development and function of autoreactive lymphocytes. Although the mechanisms underlying compromised self-tolerance in these and other autoimmune diseases have not been fully elucidated, one possibility is numerical, functional, and/or migratory deficits in T regulatory cells (Tregs)...
June 9, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28566332/oncolytic-adenovirus-and-tumor-targeting-immune-modulatory-therapy-improve-autologous-cancer-vaccination
#5
Hong Jiang, Yisel Rivera-Molina, Candelaria Gomez-Manzano, Karen Clise-Dwyer, Laura Bover, Luis M Vence, Ying Yuan, Frederick F Lang, Carlo Toniatti, Mohammad B Hossain, Juan Fueyo
Oncolytic viruses selectively lyse tumor cells, disrupt immunosuppression within the tumor, and reactivate antitumor immunity, but they have yet to live up to their therapeutic potential. Immune checkpoint modulation has been efficacious in a variety of cancer with an immunogenic microenvironment, but is associated with toxicity due to nonspecific T-cell activation. Therefore, combining these two strategies would likely result in both effective and specific cancer therapy. To test the hypothesis, we first constructed oncolytic adenovirus Delta-24-RGDOX expressing the immune costimulator OX40 ligand (OX40L)...
July 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28493549/transcription-factor-rbp-j-mediated-signalling-regulates-basophil-immunoregulatory-function-in-mouse-asthma-model
#6
Shuo-Yao Qu, Ya-Long He, Jian Zhang, Chang-Gui Wu
Basophils (BA) play an important role in the promotion of aberrant T helper type 2 (Th2) immune responses in asthma. It is not only the effective cell, but also modulates the initiation of Th2 immune responses. We earlier demonstrated that Notch signalling regulates the biological function of BAin vitro. However, whether this pathway plays the same role in vivo is not clear. The purpose of the present study was to investigate the effect of Notch signalling on BA function in the regulation of allergic airway inflammation in a murine model of asthma...
September 2017: Immunology
https://www.readbyqxmd.com/read/28420813/establishment-of-cell-lines-from-adult-t-cell-leukemia-cells-dependent-on-negatively-charged-polymers
#7
Yoshitoyo Kagami, Susumu Uchiyama, Harumi Kato, Yasutaka Okada, Masao Seto, Tomohiro Kinoshita
Growing adult T-cell leukemia/lymphoma (ATLL) cells in vitro is difficult. Here, we examined the effects of static electricity in the culture medium on the proliferation of ATLL cells. Six out of 10 ATLL cells did not proliferate in vitro and thus had to be cultured in a medium containing negatively charged polymers. In the presence of poly-γ-glutamic acid (PGA) or chondroitin sulfate (CDR), cell lines (HKOX3-PGA, HKOX3-CDR) were established from the same single ATLL case using interleukin (IL)-2, IL-4, and feeder cells expressing OX40L (OX40L(+)HK)...
April 18, 2017: Journal of Clinical and Experimental Hematopathology: JCEH
https://www.readbyqxmd.com/read/28369782/immune-checkpoint-proteins-exploring-their-therapeutic-potential-to-regulate-atherosclerosis
#8
REVIEW
A C Foks, J Kuiper
The immune system provides a large variety of immune checkpoint proteins, which involve both costimulatory and inhibitory proteins. Costimulatory proteins can promote cell survival, cell cycle progression and differentiation to effector and memory cells, whereas inhibitory proteins terminate these processes to halt ongoing inflammation. Immune checkpoint proteins play a pivotal role in atherosclerosis by regulating the activation and proliferation of various immune and non-immune cells, such as T-cells, macrophages and platelets...
March 30, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28332559/the-immunogenetics-of-narcolepsy-associated-with-a-h1n1-pdm09-vaccination-pandemrix-supports-a-potent-gene-environment-interaction
#9
MULTICENTER STUDY
I L Bomfim, F Lamb, K Fink, A Szakács, A Silveira, L Franzén, V Azhary, M Maeurer, N Feltelius, N Darin, T Hallböök, L Arnheim-Dahlström, I Kockum, T Olsson
The influenza A(H1N1)pdm09 vaccination campaign from 2009 to 2010 was associated with a sudden increase in the incidence of narcolepsy in several countries. Narcolepsy with cataplexy is strongly associated with the human leukocyte antigen (HLA) class II DQB1*06:02 allele, and protective associations with the DQB1*06:03 allele have been reported. Several non-HLA gene loci are also associated, such as common variants of the T-cell receptor-α (TRA), the purinergic receptor P2RY11, cathepsin H (CTSH) and TNFSF4/OX40L/CD252...
March 2017: Genes and Immunity
https://www.readbyqxmd.com/read/28320444/ox40-signaling-is-involved-in-the-autoactivation-of-cd4-cd28-t-cells-and-contributes-to-the-pathogenesis-of-autoimmune-arthritis
#10
Juean Jiang, Cuiping Liu, Mi Liu, Yu Shen, Xiaohan Hu, Qin Wang, Jian Wu, Min Wu, Qi Fang, Xueguang Zhang
BACKGROUND: CD4(+)CD28(-) T cells exhibit autoreactive potential in autoimmune disorders, including rheumatoid arthritis (RA). It is not well known which costimulator functions as an alternative second signal in the activation of this subset after CD28 expression is downregulated. Tumor necrosis factor receptor superfamily member OX40 is a key costimulator in the activation of T cells. The aim of this study was to investigate the costimulatory effects of OX40 on CD4(+)CD28(-) T cells in autoimmune arthritis...
March 21, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28289708/interruption-of-ox40l-signaling-prevents-costimulation-blockade-resistant-allograft-rejection
#11
William H Kitchens, Ying Dong, David V Mathews, Cynthia P Breeden, Elizabeth Strobert, Maria E Fuentes, Christian P Larsen, Mandy L Ford, Andrew B Adams
The potential of costimulation blockade to serve as a novel transplant immunosuppression strategy has been explored for over 20 years, culminating in the recent clinical approval of belatacept for renal transplant patients. Despite improving long-term graft function and survival compared with calcineurin inhibitors, clinical acceptance of belatacept has been hindered by elevated rates of acute rejection. We examined the signaling pathways required to activate costimulation blockade-resistant alloreactive T cells and identified the OX40/OX40L secondary costimulatory pathway as a promising target...
March 9, 2017: JCI Insight
https://www.readbyqxmd.com/read/28287273/novel-monoclonal-treatments-in-severe-asthma
#12
Howraman Meteran, Hanieh Meteran, Celeste Porsbjerg, Vibeke Backer
AIM: To provide a general overview of the current biological treatments and discuss their potential anti-asthmatic effects. DATA SOURCES: We reviewed articles in PubMed found using the search words "Asthma/therapy AND antibodies, monoclonal/therapeutic use AND cytokines." STUDY SELECTIONS: Only articles published in English since 2000 were considered. The search identified 29 studies; 8 additional studies were found by hand search, generating 37 studies...
March 13, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/28214951/inhibition-of-jak-stat-pathway-restrains-tslp-activated-dendritic-cells-mediated-inflammatory-t-helper-type-2-cell-response-in-allergic-rhinitis
#13
Zhaohui Shi, Weihong Jiang, Min Wang, Xiaocheng Wang, Xiaoyuan Li, Xiaodong Chen, Li Qiao
Thymic stromal lymphopoietin (TSLP) has recently been implicated as a key molecule for initiating allergic rhinitis (AR) at the cell-dendritic cell (DC) interface. Previous studies demonstrated that TSLP activated DCs to express more OX40 ligand (OX40L), which is associated with the initiation of T helper type 2 (Th2) cell responses. STAT phosphorylation has been reported to be promoted by TSLP. Thus, we investigated if the JAK/STAT pathway inhibitor CYT387 could affect TSLP-DC-mediated Th2 cell response in naive T cell and AR mice model...
February 18, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28132739/the-th2-polarizing-function-of-atopic-interleukin-17-receptor-b-positive-dendritic-cells-up-regulated-by-lipopolysaccharide
#14
Rui Zheng, Feng-Hong Chen, Wen-Xiang Gao, Dan Wang, Qin-Tai Yang, Kai Wang, Yin-Yan Lai, Jie Deng, Li-Jie Jiang, Yue-Qi Sun, Jian-Bo Shi
BACKGROUND: Recent studies suggest that epithelial cell (EC)-derived cytokines contribute to allergic airway disease exacerbation. OBJECTIVE: To confirm our hypothesis that atopic dendritic cells (DCs) are activated to up-regulate the receptors of cytokines that mainly derived from ECs and enhance TH2 responses. METHODS: The expressions of interleukin 17 receptor B (IL-17RB) (IL-25 receptor), membrane-bound ST2 (IL-33 receptor), thymic stromal lymphopoietin receptor (TSLPR), granulocyte-macrophage colony-stimulating factor receptor (GM-CSFR), and several functional markers on CD1c(+) monocyte-derived DCs (mo-DCs) were detected by flow cytometry...
April 2017: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/28086903/negative-immune-factors-might-predominate-local-tumor-immune-status-and-promote-carcinogenesis-in-cervical-carcinoma
#15
Minyi Zhao, Yang Li, Xing Wei, Qian Zhang, Hongran Jia, Shimin Quan, Di Cao, Li Wang, Ting Yang, Juan Zhao, Meili Pei, Sijuan Tian, Yang Yu, Yanping Guo, Xiaofeng Yang
BACKGROUND: The disequilibrium of local immune microenvironment is an essential element during tumorigenesis. METHOD: By conducting real-time polymerase chain reaction, we identified the mRNA level of immune factors, FoxP3 (forkhead box protein P3), CCL22/CCR4 (chemokine (C-C motif) ligand 22/CC chemokine receptor 4), OX40L/OX40 (tumor necrosis factor superfamily member 4/tumor necrosis factor receptor superfamily member 4) and Smad3 (SMAD family member 3) in neoplastic foci and its periphery tissues from 30 cases of squamous cervical carcinoma and 20 cases of normal cervix...
January 13, 2017: Virology Journal
https://www.readbyqxmd.com/read/28069723/a-novel-murine-gitr-ligand-fusion-protein-induces-antitumor-activity-as-a-monotherapy-that-is-further-enhanced-in-combination-with-an-ox40-agonist
#16
Rebecca Leyland, Amanda Watkins, Kathy A Mulgrew, Nicholas Holoweckyj, Lisa Bamber, Natalie J Tigue, Emily Offer, John Andrews, Li Yan, Stefanie Mullins, Michael D Oberst, Jane Coates Ulrichsen, David A Leinster, Kelly McGlinchey, Lesley Young, Michelle Morrow, Scott A Hammond, Philip Mallinder, Athula Herath, Ching Ching Leow, Robert W Wilkinson, Ross Stewart
Purpose: To generate and characterize a murine GITR ligand fusion protein (mGITRL-FP) designed to maximize valency and the potential to agonize the GITR receptor for cancer immunotherapy.Experimental Design: The EC50 value of the mGITRL-FP was compared with an anti-GITR antibody in an in vitro agonistic cell-based reporter assay. We assessed the impact of dose, schedule, and Fc isotype on antitumor activity and T-cell modulation in the CT26 tumor model. The activity of the mGITRL-FP was compared with an agonistic murine OX40L-FP targeting OX40, in CT26 and B16F10-Luc2 tumor models...
January 9, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28045060/soluble-ox40l-and-jag1-induce-selective-proliferation-of-functional-regulatory-t-cells-independent-of-canonical-tcr-signaling
#17
Prabhakaran Kumar, Khaled Alharshawi, Palash Bhattacharya, Alejandra Marinelarena, Christine Haddad, Zuoming Sun, Shigeru Chiba, Alan L Epstein, Bellur S Prabhakar
Regulatory T-cells (Tregs) play a pivotal role in maintaining peripheral tolerance. Increasing Treg numbers/functions has been shown to ameliorate autoimmune diseases. However, common Treg expansion approaches use T-Cell Receptor (TCR)-mediated stimulation which also causes proliferation of effector T-cells (Teff). To overcome this limitation, purified patient-specific Tregs are expanded ex vivo and transfused. Although promising, this approach is not suitable for routine clinical use. Therefore, an alternative approach to selectively expand functional Tregs in vivo is highly desired...
January 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/27939673/perinatal-activation-of-the-interleukin-33-pathway-promotes-type-2-immunity-in-the-developing-lung
#18
Ismé M de Kleer, Mirjam Kool, Marjolein J W de Bruijn, Monique Willart, Justine van Moorleghem, Martijn J Schuijs, Maud Plantinga, Rudi Beyaert, Emily Hams, Padraic G Fallon, Hamida Hammad, Rudi W Hendriks, Bart N Lambrecht
Allergic disease originates in early life and polymorphisms in interleukin-33 gene (IL33) and IL1RL1, coding for IL-33R and decoy receptor sST2, confer allergy risk. Early life T helper 2 (Th2) cell skewing and allergy susceptibility are often seen as remnants of feto-maternal symbiosis. Here we report that shortly after birth, innate lymphoid type 2 cells (ILC2s), eosinophils, basophils, and mast cells spontaneously accumulated in developing lungs in an IL-33-dependent manner. During the phase of postnatal lung alveolarization, house dust mite exposure further increased IL-33, which boosted cytokine production in ILC2s and activated CD11b(+) dendritic cells (DCs)...
December 20, 2016: Immunity
https://www.readbyqxmd.com/read/27905107/co-operative-suppression-of-inflammatory-responses-in-human-dendritic-cells-by-plant-proanthocyanidins-and-products-from-the-parasitic-nematode-trichuris-suis
#19
Andrew R Williams, Elsenoor J Klaver, Lisa C Laan, Aina Ramsay, Christos Fryganas, Rolf Difborg, Helene Kringel, Jess D Reed, Irene Mueller-Harvey, Søren Skov, Irma van Die, Stig M Thamsborg
Interactions between dendritic cells (DCs) and environmental, dietary and pathogen antigens play a key role in immune homeostasis and regulation of inflammation. Dietary polyphenols such as proanthocyanidins (PAC) may reduce inflammation, and we therefore hypothesized that PAC may suppress lipopolysaccharide (LPS) -induced responses in human DCs and subsequent T helper type 1 (Th1) -type responses in naive T cells. Moreover, we proposed that, because DCs are likely to be exposed to multiple stimuli, the activity of PAC may synergise with other bioactive molecules that have anti-inflammatory activity, e...
March 2017: Immunology
https://www.readbyqxmd.com/read/27896636/tnf-superfamily-cytokines-in-the-promotion-of-th9-differentiation-and-immunopathology
#20
REVIEW
Françoise Meylan, Richard M Siegel
The tumor necrosis factor (TNF) receptors and their corresponding cytokine ligands have been implicated in many aspects of the biology of immune functions. TNF receptors have key roles during various stages of T cell homeostasis. Many of them can co-stimulate lymphocyte proliferation and cytokine production. Additionally, several TNF cytokines can regulate T cell differentiation, including promoting Th1, Th2, Th17, and more recently the newly described Th9 subset. Four TNF family cytokines have been identified as regulators for IL-9 production by T cells...
January 2017: Seminars in Immunopathology
keyword
keyword
73534
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"