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CD40 Ligand

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https://www.readbyqxmd.com/read/28904313/immune-receptors-cd40-and-cd86-in-oral-keratinocytes-and-implications-for-oral-lichen-planus
#1
Alison Marshall, Antonio Celentano, Nicola Cirillo, Michiko Mirams, Michael McCullough, Stephen Porter
Lichen planus (LP) is a chronic T-cell-mediated mucocutaneous inflammatory disease that targets stratified epithelia, including those lining the oral cavity. The intraoral variant of LP (OLP) is associated with interferon (IFN)-γ production by infiltrating T lymphocytes; however, the role of epithelial cells in the etiopathogenesis OLP is not completely understood. There is however a growing body of evidence regarding the involvement of epithelial-derived cytokines, immune receptors, and costimulatory molecules in the pathobiological processes that promote and sustain OLP...
2017: Journal of Oral Science
https://www.readbyqxmd.com/read/28890720/porcine-b-cell-subset-responses-to-toll-like-receptor-ligands
#2
Roman Othmar Braun, Sylvie Python, Artur Summerfield
Toll-like receptors (TLR) triggering of B cells are known to promote B cell expansion, differentiation of B cells into antibody-producing and memory cells, but the TLR responses of porcine B cells is poorly characterized. Therefore, this study investigated the response pattern of porcine B cell subsets to a large collection of TLR ligands and demonstrates that the TLR2 ligand Pam3Cys-SK4 and the TLR7/8 ligands gardiquimod and resiquimod are particularly efficient at inducing proliferation, CD25 and CCR7. This activation was also determined in B-cell subpopulations including a CD21(+)IgM(+) subset, an IgG(+) subset and two putative B1-like subsets, defined as CD21(-)IgM(high)CD11R1(+)CD11c(+)CD14(+) and CD21(-)IgM(high) CD11R1(-)CD11c(+)CD14(-) B cells...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28883908/increased-levels-of-oxidative-stress-markers-soluble-cd40-ligand-and-carotid-intima-media-thickness-reflect-acceleration-of-atherosclerosis-in-male-patients-with-ankylosing-spondylitis-in-active-phase-and-without-the-classical-cardiovascular-risk-factors
#3
Agata Stanek, Armand Cholewka, Tomasz Wielkoszyński, Ewa Romuk, Karolina Sieroń, Aleksander Sieroń
OBJECTIVE: The primary aim of the study was to assess levels of oxidative stress markers, soluble CD40 ligand (sCD40L), serum pregnancy-associated plasma protein-A (PAPP-A), and placental growth factor (PlGF) as well as carotid intima-media thickness (IMT) in patients with ankylosing spondylitis (AS) with active phase without concomitant classical cardiovascular risk factors. MATERIAL AND METHODS: The observational study involved 96 male subjects: 48 AS patients and 48 healthy ones, who did not differ significantly regarding age, BMI, comorbid disorders, and distribution of classical cardiovascular risk factors...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28878738/overlooked-mechanisms-in-type-1-diabetes-etiology-how-unique-costimulatory-molecules-contribute-to-diabetogenesis
#4
REVIEW
David H Wagner
Type 1 Diabetes (T1D) develops when immune cells invade the pancreatic islets resulting in loss of insulin production in beta cells. T cells have been proven to be central players in that process. What is surprising, however, is that classic mechanisms of tolerance cannot explain diabetogenesis; alternate mechanisms must now be considered. T cell receptor (TCR) revision is the process whereby T cells in the periphery alter TCR expression, outside the safety-net of thymic selection pressures. This process results in an expanded T cell repertoire, capable of responding to a universe of pathogens, but limitations are that increased risk for autoimmune disease development occurs...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28875845/new-trends-in-anti-cancer-therapy-combining-conventional-chemotherapeutics-with-novel-immunomodulators
#5
Amy L Wilson, Magdalena Plebanski, Andrew N Stephens
Cancer is one of the leading causes of death worldwide, and current research has focused on the discovery of novel approaches to effectively treat this disease. Recently, a considerable number of clinical trials have demonstrated the success of immunomodulatory therapies for the treatment of cancer. Monoclonal antibodies can target components of the immune system to either i) agonise co-stimulatory molecules, such as CD137, OX40 and CD40; or ii) inhibit immune checkpoints, such as cytotoxic T-lymphocyte-associated antigen 4 (CTLA-4), programmed cell death-1 (PD-1) and its corresponding ligand PD-L1...
August 29, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28860901/correlation-between-intravoxel-incoherent-motion-magnetic-resonance-imaging-derived-metrics-and-serum-soluble-cd40-ligand-level-in-an-embolic-canine-stroke-model
#6
Xiao-Quan Xu, Chen-Jiang Wu, Shan-Shan Lu, Qian-Qian Gao, Qing-Quan Zu, Xing-Long Liu, Hai-Bin Shi, Sheng Liu
OBJECTIVE: To determine the relationship between intravoxel incoherent motion (IVIM) imaging derived quantitative metrics and serum soluble CD40 ligand (sCD40L) level in an embolic canine stroke model. MATERIALS AND METHODS: A middle cerebral artery occlusion model was established in 24 beagle dogs. Experimental dogs were divided into low- and high-sCD40L group according to serum sCD40L level at 4.5 hours after establishing the model. IVIM imaging was scanned at 4...
September 2017: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
https://www.readbyqxmd.com/read/28855904/immunological-properties-of-murine-parthenogenetic-stem-cell-derived-cardiomyocytes-and-engineered-heart-muscle
#7
Michael Didié, Satish Galla, Vijayakumar Muppala, Ralf Dressel, Wolfram-Hubertus Zimmermann
Pluripotent parthenogenetic stem cells (pSCs) can be derived by pharmacological activation of unfertilized oocytes. Homozygosity of the major histocompatibility complex (MHC) in pSCs makes them an attractive cell source for applications in allogeneic tissue repair. This was recently demonstrated for pSC-based tissue-engineered heart repair. A detailed analysis of immunological properties of pSC-derived cardiomyocytes and engineered heart muscle (EHM) thereof is, however, lacking. The aim of this study was to determine baseline and cytokine-inducible MHC class I and MHC class II as well as programmed death ligand-1 (PDL-1) and co-stimulatory protein (CD40, CD80, CD86) expression in pSC-derived cardiomyocytes and pSC-EHM in vitro and in vivo...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28840653/relationships-among-obesity-type-2-diabetes-and-plasma-cytokines-in-african-american-women
#8
Gerald V Denis, Paola Sebastiani, Guillaume Andrieu, Anna H Tran, Katherine J Strissel, Frank L Lombardi, Julie R Palmer
OBJECTIVE: The principal objective of this investigation was to identify novel cytokine associations with BMI and type 2 diabetes (T2D). METHODS: Cytokines were profiled from African American women with obesity who donated plasma to the Komen Tissue Bank. Multiplex bead arrays of analytes were used to quantify 88 cytokines and chemokines in association with clinical diagnoses of metabolic health. Regression models were generated after elimination of outliers. RESULTS: Among women with obesity, T2D was associated with breast adipocyte hypertrophy and with six plasma analytes, including four chemokines (chemokine [C-C motif] ligand 2, chemokine [C-C motif] ligand 16, chemokine [C-X-C motif] ligand 1, and chemokine [C-X-C motif] ligand 16) and two growth factors (interleukin 2 and epidermal growth factor)...
August 25, 2017: Obesity
https://www.readbyqxmd.com/read/28837666/tumor-necrosis-factor-%C3%AE-blockade-treatment-decreased-cd154-cd40-ligand-expression-in-rheumatoid-arthritis
#9
Chien-Hsueh Tung, Ming-Chi Lu, Ning-Sheng Lai, Shu-Fen Wu
CONTEXTS: CD154 (commonly referred to as CD40-ligand) is a critical T cell factor that participates in the pathogenesis of autoimmune and is over-expressed in rheumatoid arthritis (RA). TNF-α blockade treatment had dramatic efficacy in RA. OBJECTIVE: To investigate whether TNF-α blockade treatment can inhibit CD154 expression in RA. METHODS: Blood samples were collected from 33 patients with rheumatoid arthritis before and 3 months after TNF-α blockade treatment...
2017: PloS One
https://www.readbyqxmd.com/read/28810601/comparative-study-of-dendritic-cells-matured-by-using-il-1%C3%AE-il-6-tnf-%C3%AE-and-prostaglandins-e2-for-different-time-span
#10
Xuejie Wu, Feng Xu, Jinliang Liu, Guiqiang Wang
Interleukin (IL)-1β, IL-6, tumor necrosis factor (TNF)-α and prostaglandins E2 is considered as the standard cocktail for maturing dendritic cells (DCs). However, the appropriate time span for DC maturation with the standard cocktail remains unclear. The present study aimed to compare the differences between DCs matured with the standard cocktail for 24 and 48 h, respectively, and determine whether 24-h stimulation was sufficient for DC maturation. The findings demonstrated that, compared with DCs matured for 48 h, the levels of cluster of differentiation (CD)80, CD83, CD86 and programmed death-ligand 1 expression in DCs matured for 24 h were relatively lower...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28806760/endothelial-activation-and-dysfunction-in-severe-fever-with-thrombocytopenia-syndrome
#11
Xiao-Kun Li, Zhen-Dong Yang, Juan Du, Bo Xing, Ning Cui, Pan-He Zhang, Hao Li, Xiao-Ai Zhang, Qing-Bin Lu, Wei Liu
BACKGROUND: Pathogenesis of severe fever with thrombocytopenia syndrome (SFTS) has not been well described yet. Recent studies indicate that SFTSV could replicate in endothelial cells. Here we performed a case-control study to determine whether endothelial activation/dysfunction occurred in SFTSV infection and to identify the biomarkers reflecting endothelial dysfunction. METHODOLOGY/PRINCIPAL FINDINGS: In a case-control study of 134 SFTS patients and 68 healthy controls, serum levels of plasminogen activator inhibitor 1, tissue plasminogen activator, P-selectin, platelet endothelial cell adhesion molecular, CD40 ligand, E-selectin, vascular endothelial growth factor A, serum amyloid antigen 1 (SAA-1) and vascular cell adhesion molecular 1 were significantly enhanced in the patients than the controls (all P<0...
August 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28801616/circulating-cd40-and-scd40l-predict-changes-in-renal-function-in-subjects-with-chronic-kidney-disease
#12
Jeffrey X Xie, Helen Alderson, James Ritchie, Philip A Kalra, Yanmei Xie, Kaili Ren, Hanh Nguyen, Tian Chen, Pamela Brewster, Rajesh Gupta, Lance D Dworkin, Deepak Malhotra, Christopher J Cooper, Jiang Tian, Steven T Haller
Soluble CD40 ligand (sCD40L) has been implicated in the development of renal injury. The CD40 receptor exists in a soluble form, sCD40R, and has been shown to function as a competitive antagonist against CD40 activation. We analyzed whether plasma levels of sCD40L and sCD40R predict changes in renal function in an all-cause chronic kidney disease (CKD) cohort. Stratification of subjects based on sCD40L and sCD40R individually, as well as in combination, demonstrated that sCD40L was directly associated with declines in estimated glomerular filtration rate (eGFR)...
August 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28796044/clinical-significance-of-costimulatory-molecules-cd40-cd40l-and-cd134-cd134l-in-coronary-heart-disease-a-case-control-study
#13
Jun Chen, Jian-Hao Li, Shan-Jun Zhao, Da-Yu Wang, Wen-Zhu Zhang, Wei-Jie Liang
The aim of the study was to evaluate the potential role of CD40/CD40 ligand (CD40L) and CD134/CD134 ligand (CD134L) in the development of coronary heart disease (CHD) via the performance of a case-control study.The research objects were 234 cases of CHD patients and 120 cases of well-matched normal controls. Following the separation of peripheral blood mononuclear cells (PBMCs), real-time quantitative PCR (qRT-PCR), Western blot, immunohistochemistry, and flow cytometry were applied for the detection of mRNA levels and expression levels of CD40/CD40L and CD134/CD134L; meanwhile, intercellular adhesion molecule-1 (ICAM-1) and Fas protein mRNA levels were detected using qRT-PCR...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28780512/repeated-administration-of-dapirolizumab-pegol-in-a-randomised-phase-i-study-is-well-tolerated-and-accompanied-by-improvements-in-several-composite-measures-of-systemic-lupus-erythematosus-disease-activity-and-changes-in-whole-blood-transcriptomic-profiles
#14
Chris Chamberlain, Peter J Colman, Ann M Ranger, Linda C Burkly, Geoffrey I Johnston, Christian Otoul, Christian Stach, Miren Zamacona, Thomas Dörner, Murray Urowitz, Falk Hiepe
OBJECTIVES: Systemic lupus erythematosus (SLE) is a heterogeneous autoimmune disease associated with diffuse immune cell dysfunction. CD40-CD40 ligand (CD40L) interaction activates B cells, antigen-presenting cells and platelets. CD40L blockade might provide an innovative treatment for systemic autoimmune disorders. We investigated the safety and clinical activity of dapirolizumab pegol, a polyethylene glycol conjugated anti-CD40L Fab' fragment, in patients with SLE. METHODS: This 32-week randomised, double-blind, multicentre study (NCT01764594) evaluated repeated intravenous administration of dapirolizumab pegol in patients with SLE who were positive for/had history of antidouble stranded DNA/antinuclear antibodies and were on stable doses of immunomodulatory therapies (if applicable)...
August 5, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28767735/engaging-the-cd40-cd40l-pathway-augments-t-helper-cell-responses-and-improves-control-of-mycobacterium-tuberculosis-infection
#15
Jonathan Kevin Sia, Erica Bizzell, Ranjna Madan-Lala, Jyothi Rengarajan
Mycobacterium tuberculosis (Mtb) impairs dendritic cell (DC) functions and induces suboptimal antigen-specific CD4 T cell immune responses that are poorly protective. Mucosal T-helper cells producing IFN-γ (Th1) and IL-17 (Th17) are important for protecting against tuberculosis (TB), but the mechanisms by which DCs generate antigen-specific T-helper responses during Mtb infection are not well defined. We previously reported that Mtb impairs CD40 expression on DCs and restricts Th1 and Th17 responses. We now demonstrate that CD40-dependent costimulation is required to generate IL-17 responses to Mtb...
August 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28762633/platelet-activation-and-clotting-cascade-activation-by-dialyzers-designed-for-high-volume-online-hemodiafiltration
#16
Kamonwan Tangvoraphonkchai, Anne Riddell, Andrew Davenport
INTRODUCTION: Hemodialysis patients are pro-thrombotic. Higher volume online postdilutional hemodiafiltration (OL-HDF), with increasing hematocrit increases the risk of clotting in the extracorporeal circuit (ECC). We wished to determine whether OL-HDF increased platelet activation and ECC clotting. METHODS: Coagulation parameters, platelet, white cell, and endothelial activation markers were measured at the start and end of dialysis sessions in 10 patients and also pre- and post-dialyzer after 15 minutes using two different dialyzers designed for high volume OL-HDF; cellulose triacetate (TAGP) and polysulphone (PS), and polyvinylpyrrolidone (PVP)...
August 1, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/28752299/silica-microparticles-for-sustained-zero-order-release-of-an-anti-cd40l-antibody
#17
Puneet Tyagi, Mika Koskinen, Jari Mikkola, Lasse Leino, Alexander Schwarz
Silica microparticle hydrogel depot (HG) formulation was prepared using spray drying of silica-based sol-gels for the sustained delivery of MR1 antibody which binds to CD40 ligand (CD40L). The formulation was tested in vitro for antibody release, surface morphology, particle size, rheology, and injectability. In vivo pharmacokinetic evaluation was performed for the microparticle formulation and free MR1 antibody in BALB/c female mice. Serum samples up to day 62 were assessed using an enzyme-linked immunosorbent assay...
July 27, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28738836/metabolism-associated-danger-signal-induced-immune-response-and-reverse-immune-checkpoint-activated-cd40-monocyte-differentiation
#18
REVIEW
Jin Dai, Pu Fang, Jason Saredy, Hang Xi, Cueto Ramon, William Yang, Eric T Choi, Yong Ji, Wei Mao, Xiaofeng Yang, Hong Wang
Adaptive immunity is critical for disease progression and modulates T cell (TC) and antigen-presenting cell (APC) functions. Three signals were initially proposed for adaptive immune activation: signal 1 antigen recognition, signal 2 co-stimulation or co-inhibition, and signal 3 cytokine stimulation. In this article, we propose to term signal 2 as an immune checkpoint, which describes interactions of paired molecules leading to stimulation (stimulatory immune checkpoint) or inhibition (inhibitory immune checkpoint) of an immune response...
July 24, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28736763/immunologic-effects-of-maraviroc-in-hiv-infected-patients-with-severe-cd4-lymphopenia-starting-antiretroviral-therapy-a-sub-study-of-the-cadiris-trial
#19
Pablo F Belaunzarán-Zamudio, Livio Azzoni, David H Canaday, Yanink N Caro-Vega, Brian Clagget, Mohammed S Rassool, Benigno Rodriguez, Ian Sanne, Irini Sereti, Juan G Sierra-Madero, Michael M Lederman
BACKGROUND: We aimed to describe the mechanisms of immunological recovery and the effects of blocking CCR5 in patients starting ART with advanced HIV-infection. METHODS: This was a sub-study of a 48 week double-blind, clinical trial where patients starting ART with CD4+ cell counts <100 cells/uL were randomized to receive maraviroc or a placebo. CD4+ and CD8+ cell maturation phenotypes, expression of PD-1 and CCR5, and activation indices were measured at weeks 0, 4, 12, 24, and 48...
2017: Pathogens & Immunity
https://www.readbyqxmd.com/read/28720587/platelet-soluble-cd40-ligand-level-is-associated-with-transfusion-adverse-reactions-in-a-mixed-threshold-and-hit-model
#20
LETTER
Fabrice Cognasse, Caroline Sut, Elisa Fromont, Sandrine Laradi, Hind Hamzeh-Cognasse, Olivier Garraud
No abstract text is available yet for this article.
September 14, 2017: Blood
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