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https://www.readbyqxmd.com/read/27926947/correction-cd40-activation-rescues-antiviral-cd8-t-cells-from-pd-1-mediated-exhaustion
#1
Masanori Isogawa, Josan Chung, Yasuhiro Murata, Kazuhiro Kakimi, Francis V Chisari
[This corrects the article DOI: 10.1371/journal.ppat.1003490.].
December 2016: PLoS Pathogens
https://www.readbyqxmd.com/read/27924297/datasets-for-the-validation-of-the-in-vivo-sirna-silencing-of-cd40-and-for-the-detection-of-new-markers-of-atherosclerosis-progression-in-apoe-deficient-mice
#2
Miguel Hueso, Laura De Ramon, Estanislao Navarro, Elia Ripoll, Josep M Cruzado, Josep M Grinyo, Joan Torras
Data presented in this Data in Brief article correspond to the article "in vivo" silencing of CD40 reduces progression of experimental atherogenesis through a NFκB/miR-125b axis and reveals new potential mediators in the pathogenesis of atherosclerosis" (M. Hueso, L. De Ramon, E. Navarro, E. Ripoll, J.M. Cruzado, J.M. Grinyo, J. Torras, 2016) [1]. Here, we describe the validation of the silencing of CD40 expression with a specific siRNA in ApoE(-/-) mouse aortas, and its systemic effects on splenic lymphocytic subpopulations as well as on the infiltration of aortic intima by F4/80(+), galectin-3(+) macrophages or by NF-κB(+) cells...
December 2016: Data in Brief
https://www.readbyqxmd.com/read/27920777/physical-interaction-of-t-cells-with-dendritic-cells-is-not-required-for-the-immunomodulatory-effects-of-the-edible-mushroom-agaricus-subrufescens
#3
Ruud H P Wilbers, Lotte B Westerhof, Jan van de Velde, Geert Smant, Debbie R van Raaij, Anton S M Sonnenberg, Jaap Bakker, Arjen Schots
Mushrooms are well known for their immunomodulating capacities. However, little is known about how mushroom-stimulated dendritic cells (DCs) affect T cells. Therefore, we investigated the effect of mushroom compounds derived from seven edible mushroom species on DCs, their fate in DCs, and the effect of the mushroom-stimulated DCs on T cells. Each mushroom species stimulated DCs in a different manner as was revealed from the DC's cytokine response. Assessing DC maturation revealed that only one mushroom species, Agaricus subrufescens, induced complete DC maturation...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27920526/in-vitro-inflammatory-effects-of-hard-metal-wc-co-nanoparticle-exposure
#4
Andrea L Armstead, Bingyun Li
Identifying the toxicity of nanoparticles (NPs) is an important area of research as the number of nanomaterial-based consumer and industrial products continually rises. In addition, the potential inflammatory effects resulting from pulmonary NP exposure are emerging as an important aspect of nanotoxicity. In this study, the toxicity and inflammatory state resulting from tungsten carbide-cobalt (WC-Co) NP exposure in macrophages and a coculture (CC) of lung epithelial cells (BEAS-2B) and macrophages (THP-1) at a 3:1 ratio were examined...
2016: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/27916733/sirt1-regulates-lipopolysaccharide-induced-cd40-expression-in-renal-medullary-collecting-duct-cells-by-suppressing-the-tlr4-nf-%C3%AE%C2%BAb-signaling-pathway
#5
Qin-Qin Lin, Yuan-Wen Geng, Zhong-Wei Jiang, Zhen-Jun Tian
AIMS: Recent evidence indicates that sirtuin1 (SIRT1), a NAD(+)-dependent deacetylase, exerts a protective effect against inflammatory kidney injury by suppressing pro-inflammatory cytokines production. The co-stimulatory molecule, CD40, is expressed in a variety of inflammatory diseases in the kidney. Here, we aimed to investigate the potential effect of SIRT1 on CD40 expression induced by lipopolysaccharide (LPS) and to disclose the underlying mechanisms in renal inner medullary collecting duct (IMCD) cells...
December 1, 2016: Life Sciences
https://www.readbyqxmd.com/read/27911948/tlr3-induced-maturation-of-murine-dendritic-cells-regulates-ctl-responses-by-modulating-pd-l1-trafficking
#6
Aditi Varthaman, Hélène D Moreau, Mathieu Maurin, Philippe Benaroch
Targeting TLR3 through formulations of polyI:C is widely studied as an adjuvant in cancer immunotherapy. The efficacy of such targeting has been shown to increase in combination with anti-PD-L1 treatment. Nevertheless, the mechanistic details of the effect of polyI:C on DC maturation and the impact on T-DC interactions upon PD-L1 blockade is largely unknown. Here we found that although DC treatment with polyI:C induced a potent inflammatory response including the production of type I interferon, polyI:C treatment of DCs impaired activation of peptide specific CD8+ T cells mainly due to PD-L1...
2016: PloS One
https://www.readbyqxmd.com/read/27910826/enhancing-radiotherapy-for-lung-cancer-using-immunoadjuvants-delivered-in-situ-from-new-design-radiotherapy-biomaterials-a-preclinical-study
#7
Yao Hao, Sayeda Yasmin-Karim, Michele Moreau, Neeharika Sinha, Erno Sajo, Wilfred Ngwa
Studies show that radiotherapy of a primary tumor in combination with immunoadjuvants (IA) can result in increased survival or immune-mediated regression of metastasis outside the radiation field, a phenomenon known as abscopal effect. However, toxicities due to repeated systematic administration of IA have been shown to be a major obstacle in clinical trials. To minimize the toxicities and prime a more potent immune response, Ngwa et al have proposed that inert radiotherapy biomaterials such as fiducials could be upgraded to multifunctional ones loaded with IA for in situ delivery directly into the tumor sub-volume at no additional inconvenience to patients...
December 21, 2016: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/27908642/negative-regulation-of-nlrp3-inflammasome-by-sirt1-in-vascular-endothelial-cells
#8
Yanxiang Li, Xiaofeng Yang, Yanhao He, Weirong Wang, Jiye Zhang, Wei Zhang, Ting Jing, Bo Wang, Rong Lin
NLRP3 inflammasome not only functions as a critical effector in innate immunity, but also triggers the production of proinflammatory cytokines involved in inflammation-associated diseases. Sirtuin 1 (SIRT1) plays an important role in the regulation of cellular inflammation. However, whether the activation of NLRP3 inflammasome is regulated by SIRT1 remains unknown. In this study, we investigated the regulatory effect of SIRT1 on NLRP3 inflammasome and the underlying mechanisms. We found that lipopolysaccharide (LPS) and adenosine triphosphate (ATP)-induced the activation of NLRP3 inflammasome in human umbilical vein endothelial cells (HUVECs)...
November 4, 2016: Immunobiology
https://www.readbyqxmd.com/read/27906162/activation-of-myeloid-and-endothelial-cells-by-cd40l-gene-therapy-supports-t-cell-expansion-and-migration-into-the-tumor-microenvironment
#9
E Eriksson, R Moreno, I Milenova, L Liljenfeldt, L C Dieterich, L Christiansson, H Karlsson, G Ullenhag, S Mangsbo, A Dimberg, R Alemany, A Loskog
CD40 is an interesting target in cancer immunotherapy due to its ability to stimulate Th1 immunity via maturation of dendritic cells and to drive M2 to M1 macrophage differentiation. Pancreatic cancer has a high M2 content that has shown responsive to anti-CD40 agonist therapy and CD40 may thus be a suitable target for immune activation in these patients. In this study, a novel oncolytic adenovirus armed with a trimerized membrane-bound extracellular CD40L (TMZ-CD40L) was evaluated as a treatment of pancreatic cancer...
December 1, 2016: Gene Therapy
https://www.readbyqxmd.com/read/27904658/circulating-microparticles-enhanced-rat-vascular-wall-remodeling-following-endothelial-denudation
#10
Fan-Yen Lee, Hung-I Lu, Han-Tan Chai, Jiunn-Jye Sheu, Yi-Ling Chen, Tein-Hung Huang, Gour-Shenq Kao, Sheng-Yi Chen, Sheng-Ying Chung, Pei-Hsun Sung, Hsueh-Wen Chang, Mel S Lee, Hon-Kan Yip
This study tested the hypothesis that circulating microparticles (MPs) exacerbated vascular wall (VW) remodeling after endothelial denudation by 0.014 wire in a rat model. Adult male Sprague Dawley rats (n = 40) were equally categorized into group 1 [sham-control (SC); 3.0 mL saline intravenous injection], group 2 [SC + intravenous MPs (1.0 × 10(7)) derived from patients with carotid artery stenosis (CAS)], group 3 [femoral arterial endothelial denudation (FAED)], group 4 (FAED + MPs derived from healthy subjects), and group 5 (FAED + CAS-derived MPs)...
2016: American Journal of Translational Research
https://www.readbyqxmd.com/read/27903205/predicting-neurological-deficit-severity-due-to-subarachnoid-haemorrhage-soluble-cd40-ligand-and-platelet-derived-growth-factor-bb
#11
Yoshitaka Kubo, Takahiro Koji, Jun Yoshida, Akira Ogawa, Kuniaki Ogasawara
BACKGROUND: Several biological markers can predict outcomes in patients with subarachnoid haemorrhage (SAH), but markers to predict neurological deficit severity in patients with SAH and poor neurological condition have not yet been established. Soluble CD40 ligand (sCD40L) and platelet-derived growth factor (PDGF) are related to the systemic inflammatory response. OBJECTIVE: In a prospective study, to investigate the relationship between clinical outcomes and blood test results in patients with SAH and severe neurological deficits...
December 2016: Critical Care and Resuscitation: Journal of the Australasian Academy of Critical Care Medicine
https://www.readbyqxmd.com/read/27899962/new-emerging-therapies-in-the-management-of-chronic-lymphocytic-leukemia
#12
Xiao-Lin Li, Ci-Xian Zhang
Chronic lymphocytic leukemia (CLL) is considered incurable despite advances in management strategies. New drugs targeting cell pathways are currently being developed for the efficient management of CLL. Various strategies involving different targets have been developed, or are currently in the developing stage. A search was conducted in the electronic database PubMed, for pre-clinical as well as clinically controlled trials reporting various strategies against CLL currently under investigation. Novel strategies included use of antibodies, small cell inhibitors, such as spleen tyrosine kinase, LYN, cyclin-dependent kinase, and histone deacetylase inhibitors...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27897229/global-gene-regulation-during-activation-of-immunoglobulin-class-switching-in-human-b-cells
#13
Youming Zhang, David J Fear, Saffron A G Willis-Owen, William O Cookson, Miriam F Moffatt
Immunoglobulin class switch recombination (CSR) to IgE is a tightly regulated process central to atopic disease. To profile the B-cell transcriptional responses underlying the activation of the germinal centre activities leading to the generation of IgE, naïve human B-cells were stimulated with IL-4 and anti-CD40. Gene expression and alternative splicing were profiled over 12 days using the Affymetrix Human Exon 1.0 ST Array. A total of 1,399 genes, forming 13 temporal profiles were differentially expressed...
November 29, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27893093/ligation-of-cd40-in-human-m%C3%A3-ller-cells-induces-p2x7-receptor-dependent-death-of-retinal-endothelial-cells
#14
Jose-Andres C Portillo, Yalitza Lopez Corcino, George R Dubyak, Timothy S Kern, Shigemi Matsuyama, Carlos S Subauste
Purpose: Cluster of differentiation 40 (CD40) is required for retinal capillary degeneration in diabetic mice, a process mediated by the retinal endothelial cells (REC) death. However, CD40 activates prosurvival signals in endothelial cells. The purpose of this study was to identify a mechanism by which CD40 triggers programmed cell death (PCD) of RECs and address this paradox. Methods: Human RECs and Müller cells were incubated with CD154 and L-N6-(1-Iminoethyl)lysine (L-Nil, nitric oxide synthase 2 inhibitor), α-lipoic acid (inhibitor of oxidative stress), anti-Fas ligand antibody, or A-438079 (P2X7 adenosine triphosphate [ATP] receptor inhibitor)...
November 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27892938/dendritic-cell-function-and-pathogen-specific-t-cell-immunity-are-inhibited-in-mice-administered-levonorgestrel-prior-to-intranasal-chlamydia-trachomatis-infection
#15
Nirk E Quispe Calla, Rodolfo D Vicetti Miguel, Ao Mei, Shumin Fan, Jocelyn R Gilmore, Thomas L Cherpes
The growing popularity of levonorgestrel (LNG)-releasing intra-uterine systems for long-acting reversible contraception provides strong impetus to define immunomodulatory properties of this exogenous progestin. In initial in vitro studies herein, we found LNG significantly impaired activation of human dendritic cell (DCs) and their capacity to promote allogeneic T cell proliferation. In follow-up studies in a murine model of intranasal Chlamydia trachomatis infection, we analogously found that LNG treatment prior to infection dramatically reduced CD40 expression in DCs isolated from draining lymph nodes at 2 days post infection (dpi)...
November 28, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27882218/adenovirus-co-expressing-cd40-ligand-and-interleukin-il-2-contributes-to-maturation-of-dendritic-cells-and-production-of-il-12
#16
Zhi Guo, Hong-Yan Gao, Tian-Yang Zhang, Jin-Xing Lou, Kai Yang, Xiao-Dong Liu, Xue-Peng He, Hui-Ren Chen
The aim of the present study was to construct a chimeric adenovirus (Ad)5/F35 co-expressing human CD4O ligand (CD4OL) and interleukin (IL)-2 (Ad5/F35 CD40L-IL-2). The infection efficiency to human monocyte-derived dendritic cells (Mo-DCs), expression of genes, phenotype changes and IL-12 production of Mo-DC by Ad5/F35 CD40L-IL-2 were investigated. CD40L and IL-2 from total RNA extracted from human peripheral blood mononuclear cells (PBMCs) were cloned by reverse transcription-polymerase chain reaction and used to construct Ad5/F35 CD40L-IL-2...
November 2016: Biomedical Reports
https://www.readbyqxmd.com/read/27882144/effect-of-cyclosporin-a-intervention-on-the-immunological-mechanisms-of-coronary-heart-disease-and-restenosis
#17
Xuan Wang, Yue-Cheng Hu, Ru-Yan Zhang, Dong-Xia Jin, Yuan Jiang, He-Nan Zhang, Hong-Liang Cong
The present study aimed to investigate the effect of cyclosporin A (CSA) intervention on the immunological mechanisms underlying coronary heart disease (CHD) and restenosis (RS) in rabbits. A total of 48 rabbits were randomly divided into normal control (N), N + CSA, CHD model, CHD + CSA, RS model and RS + CSA groups. Rabbits in the respective groups received different treatments prior to sacrifice at the end of week 12. Iliac arteries were harvested from the rabbits for morphological analysis and to determine the mRNA and protein expression levels of cluster of differentiation (CD) 40/CD40 ligand (CD40L), CD134/CD134 ligand (CD134L) and inflammatory factors, including matrix metalloproteinase (MMP)-1, MMP-9, vascular cell adhesion protein (VCAM)-1, interleukin (IL)-6 and tumor necrosis factor (TNF)-α, by reverse transcription-quantitative polymerase chain reaction and immunohistochemical staining...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27879468/relationship-between-plasma-levels-of-soluble-cd40-ligand-and-the-presence-and-severity-of-isolated-coronary-artery-ectasia
#18
Cem Ozde, Ahmet Korkmaz, Harun Kundi, Ersan Oflar, Ismail Ungan, Vusal Xankisi, Nilhan Nurlu
OBJECTIVE: We aimed to investigate whether soluble CD40 ligand (CD40L) levels are higher in patients with isolated coronary artery ectasia (CAE) compared to patients with angiographically normal coronary arteries and those with stable coronary artery disease (CAD). MATERIALS AND METHODS: In all, 55 patients with isolated CAE without stenosis, 55 with stable CAD, and 55 control participants with angiographically normal coronary arteries were included. The CAE severity was determined according to the Markis classification...
November 21, 2016: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/27878306/effects-of-interleukin-1-receptor-associated-kinase%C3%A2-1-rna-interference-in-dendritic-cells-on-inflammatory-cytokine-release-and-t-cell-proliferation
#19
Yan Gao, Xuxu Xu, Juan Feng, Ying Ma, Dongming Zheng, Yiming Meng, Fengping Shan
The present study aimed to reduce the expression of interleukin-1 receptor-associated kinase 1 (IRAK-1) in dendritic cells (DCs) by RNA interference (RNAi). Subsequently, its effects on the expression of costimulatory surface molecules, the release of inflammatory cytokines, and the proliferation of T cells during the activation process of DCs, were determined. RNAi was used to silence IRAK‑1 gene expression in DCs, followed by lipopolysaccharide stimulation. Flow cytometry was then used to detect the expression levels of DC surface molecules, including cluster of differentiation (CD)86, major histocompatibility complex class II and CD40...
November 15, 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27876704/pancreatic-carcinoma-specific-immunotherapy-using-novel-tumor-specific-cytotoxic-t-cells
#20
Jianjun Lei, Zheng Wu, Zhengdong Jiang, Jiahui Li, Liang Zong, Xin Chen, Wanxing Duan, Qinhong Xu, Lun Zhang, Liang Han, Qingyong Ma, Zheng Wang, Dong Zhang
Pancreatic cancer represents one of the most lethal human cancers. Investigation of the effective targeting to the tumor cells is essential for both primary tumors and metastases. Tumor specific cytotoxic T lymphocytes (CTLs) have recently been considered to be the attractive vehicles for delivering therapeutic agents toward various tumor diseases. This study was to explore the distribution pattern of CTL carrying the lentiviral vectors with the characteristic of adenoviral E1 gene under the control of the cell activation-dependent CD40 ligand promoter (Lenti/hCD40L/E1AB)...
November 19, 2016: Oncotarget
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