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International Immunopharmacology

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https://www.readbyqxmd.com/read/29149705/toll-like-receptor-4-deficiency-increases-resistance-in-sepsis-induced-immune-dysfunction
#1
Chao Cao, Yanfen Chai, Songtao Shou, Jun Wang, Ying Huang, Tao Ma
Sepsis constitutes a serious life-threatening syndrome associated with complications of deregulated inflammatory response against endotoxin/lipopolysaccharide (LPS)-mediated severe infection. Toll-like receptor 4 (TLR4) plays a critical role in the activation of innate immunity through recognition of LPS. However, the impact of TLR4 signaling on the development of sepsis-induced immune dysfunction remains unclear. The aim of this study was to investigate the effect of TLR4 on regulatory T cells (Tregs) and its potential mechanism...
November 14, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29149704/gold-nanoparticles-as-an-adjuvant-influence-of-size-shape-and-technique-of-combination-with-cpg-on-antibody-production
#2
Lev A Dykman, Sergey A Staroverov, Alexander S Fomin, Vitaly A Khanadeev, Boris N Khlebtsov, Vladimir A Bogatyrev
Gold nanoparticles (GNPs) are advantageous as an adjuvant in the design of effective vaccines and in the preparation of high-affinity antibodies to haptens and complete antigens. Another method of activating immunocompetent cells with colloidal gold is to conjugate GNPs with CpG oligodeoxynucleotides (ODNs). We examined how the size and shape of GNPs and various combinations of GNPs and CpG ODNs 1826 affect the immune response. When animals were injected with a model antigen (BSA) coupled to gold nanospheres (diameters, 15 and 50nm), nanorods, nanoshells, and nanostars, the titers of the resultant antibodies differed substantially...
November 14, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29149703/quercetin-attenuates-collagen-induced-arthritis-by-restoration-of-th17-treg-balance-and-activation-of-heme-oxygenase-1-mediated-anti-inflammatory-effect
#3
Yan Yang, Xu Zhang, Min Xu, Xin Wu, Feipeng Zhao, Chengzhi Zhao
Quercetin (QU) has been shown obvious anti-arthritic property in pre-clinical studies or clinical studies. Howbeit, the underlying mechanism of it is still not revealed distinctly and should be gotten further insight into. QU at a dosage of 150 mg/kg was administered orally in collagen-induced arthritis rats and then the clinical symptoms were monitored. The protein levels of Th17/Treg-related cytokines were determined by ELISA, and the mRNA levels of cytokines and transcription factors associated with the Th17 and Treg phenotypes were evaluated by real-time PCR, the proportions of Th17 and Treg cells were assessed by flow cytometry...
November 14, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29145032/intravenous-immunoglobulin-improves-glucose-control-and-%C3%AE-cell-function-in-human-iapp-transgenic-mice-by-attenuating-islet-inflammation-and-reducing-iapp-oligomers
#4
Yue Zhang, Xiao-Lin Yu, Jie Zhu, Shu-Ying Liu, Xiang-Meng Liu, Quan-Xiu Dong, Jia-Qian Chai, Rui-Tian Liu
Type 2 diabetes mellitus (T2DM) is a metabolic disorder characterized by β-cell loss, insulin resistance, islet inflammation and amyloid deposits derived from islet amyloid polypeptide (IAPP). Reducing toxic IAPP oligomers and inhibiting islet inflammation may provide therapeutic benefit in treating T2DM. Intravenous immunoglobulin (IVIg) is an efficient anti-inflammatory and immunomodulatory agent for the treatment of several autoimmune or inflammatory neurological diseases. However, whether IVIg has therapeutic potential on T2DM remains unclear...
November 13, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29136560/cytoprotective-effects-of-glycyrrhetinic-acid-liposome-against-cyclophosphamide-induced-cystitis-through-inhibiting-inflammatory-stress
#5
Bo Ge, Daping Yang, Xinmou Wu, Jing Zhu, Wu Wei, Bin Yang
This study was designed to investigate the pharmacological efficacy of glycyrrhetinic acid liposome (GAL) against female mice with nonbacterial cystitis induced by cyclophosphamide (CPS). Mice in different groups were subjected to tests for lactate dehydrogenase (LD), cytokine contents (IL-6, TNF-α) in serum, and histological changes in bladder tissue and to immunoassays. As a result, cyclophosphamide-induced cystitis in mice showed an increased LD level in serum, and the contents of cytokines (IL-6, TNF-α) were elevated...
November 11, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29132070/sixteen-year-history-of-rituximab-therapy-for-1085-pemphigus-vulgaris-patients-a-systematic-review
#6
REVIEW
Soheil Tavakolpour, HamidReza Mahmoudi, Kamran Balighi, Robabeh Abedini, Maryam Daneshpazhooh
Pemphigus vulgaris (PV) is a rare autoimmune disease due to the production of pathogenic autoantibodies directed against desmoglein 1 and 3, usually affecting both skin and mucous membranes. Recently, rituximab, a chimeric IgG1 monoclonal antibody which targets the CD20 molecules have been regarded as a promising treatment for PV. In this study, a systematic review was conducted to conclude on how and which PV patients could benefit from rituximab infusion. Search in PubMed results in 114 relevant studies, which met the criteria...
November 10, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29128856/activation-of-nrf2-pathway-and-inhibition-of-nlrp3-inflammasome-activation-contribute-to-the-protective-effect-of-chlorogenic-acid-on-acute-liver-injury
#7
Ameng Shi, Haitao Shi, Yan Wang, Xin Liu, Yan Cheng, Hong Li, Hongli Zhao, Shuangni Wang, Lei Dong
Chlorogenic acid (CGA), a kind of polyphenol found in coffee, fruits and vegetables, has potent anti-oxidant and anti-inflammatory properties. Our previous studies showed CGA could efficiently alleviate liver fibrosis in rats. However, whether CGA regulates nuclear factor erythroid-2-related factor 2 (Nrf2) anti-oxidant pathway and NLRP3 inflammasome activation and protects against carbon tetrachloride (CCl4)-induced acute liver injury are unknown. We found that CGA could increase Nrf2 activation and expression of Nrf2-related anti-oxidant genes, including HO-1, NQO1 and GCLC...
November 9, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29128855/selective-inhibition-of-ido1-d-1-methyl-tryptophan-d-1mt-effectively-increased-epcam-cd3-bispecific-bite-antibody-mt110-efficacy-against-ido1-hi-breast-cancer-via-enhancing-immune-cells-activity
#8
Ri Hong, Yuhai Zhou, Xiujuan Tian, Lijuan Wang, Xiaoyun Wu
MuS110 and MT110 are BiTE antibodies bispecific for CD3 and EpCAM, which is the most frequently and highly expressed tumor-associated antigen on breast cancer. And pronounced expression of IDO1 has also been reported in breast cancer. Our study aimed to investigate whether IDO1 inhibitor D-1MT combing with MuS110/MT110 had synergistic antitumor effects on IDO expressing EpCAM-positive breast cancer cells in vitro and in vivo. Data suggested that the expression of IDO1 on Epcam-positive breast cancer 4T1 and MCF-7 decreased MuS110/MT110 antitumor efficacy by the suppression of T cells activation in vitro...
November 9, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29127910/evaluation-of-the-efficacy-and-safety-of-%C3%AE-d-mannuronic-acid-in-patients-with-ankylosing-spondylitis-a-12-week-randomized-placebo-controlled-phase-i-ii-clinical-trial
#9
Mohammad Javad Fattahi, Ahmad Reza Jamshidi, Mahdi Mahmoudi, Mahdi Vojdanian, Mir Saeed Yekaninejad, Fahimeh Jafarnezhad-Ansariha, Hossein Ahmadi, Bernd H A Rehm, Hidenori Matsuo, Salvatore Cuzzocrea, Mostafa Hosseini, Seyed Naser Hashemi, Zahra Aghazadeh, Abbas Mirshafiey
OBJECTIVE: To evaluate the efficacy, safety and tolerability of β-d-mannuronic acid (M2000) in the treatment of ankylosing spondylitis (AS). METHODS: The study was a 12-week randomized, double-blind, placebo-controlled, phase I/II clinical trial with 3 treatment arms: placebo, β-d-mannuronic acid and naproxen. Patients who had AS according to the modified New York criteria, with active disease at baseline were eligible for study. Primary outcome measure was the Assessment of SpondyloArthritis international Society (ASAS) 20 response rate at week 12...
November 8, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29121532/paeoniflorin-inhibits-vsmcs-proliferation-and-migration-by-arresting-cell-cycle-and-activating-ho-1-through-mapks-and-nf-%C3%AE%C2%BAb-pathway
#10
Weifeng Li, Wenbing Zhi, Fang Liu, Jinmeng Zhao, Qing Yao, Xiaofeng Niu
The proliferation, migration and inflammation of vascular smooth muscle cells (VSMCs) contributes to the pathogenesis and progression of atherosclerosis. Paeoniflorin (PF) as active compound in the Rhizoma Atractylodes macrocephala has been used for various diseases like cancer, splenic asthenia, anaphylaxis and anorexia. This study aimed to explore whether and how PF regulated the inflammation, proliferation and migration of VSMCs under ox-LDL stimulation. Here, we found that PF dose-dependently inhibited ox-LDL-induced VSMCs proliferation and migration, and decreased inflammatory cytokines and chemokine overexpression...
November 6, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29112895/polyactin-a-is-a-novel-and-potent-immunological-adjuvant-for-peptide-based-cancer-vaccine
#11
Wei Wang, Yanqin Li, Yawen Wang, Shuting Ren, Yiping Li, Bing Wang
Synthetic peptide cancer vaccines are poorly immunogenic sub-unit vaccines and thus essentially need adjuvants in their formulations to increase the efficacy by enhancing the peptide-specific immune response. However, aluminum-based compounds are almost dependent for clinical use at present. Therefore, the increasing use of peptide-based vaccines makes the need for novel and potent adjuvants. Polyactin A (PAA) has been used for the clinical treatment of impaired immunity in China for over 30years. To figure out the adjuvant effects of PAA for E75 peptide breast cancer vaccine (Her2 p369-p377), the generation of mature dendritic cells (DCs) from peripheral blood monocytes (PBMCs) cultured with PAA, IL-4 and TNF-α was assessed by morphologic features and the expressions of special surface markers using flow cytometry...
November 4, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29112894/study-the-effects-of-mesenchymal-stem-cell-conditioned-medium-injection-in-mouse-model-of-acute-colitis
#12
Sedigheh Pouya, Maryam Heidari, Kaveh Baghaei, Hamid Asadzadeh Aghdaei, Afshin Moradi, Saeed Namaki, Mohammad Reza Zali, Seyed Mahmoud Hashemi
BACKGROUND AND AIM: Inflammatory bowel disease (IBD) is an autoimmune-inflammatory disorder that results in inflammatory responses in individuals who are genetically susceptible. Uncontrolled inflammation in Crohn's disease (CD) or Ulcerative colitis (UC) affects the patient quality of life. Current therapies are not completely effective while cell therapy, especially the treatment with mesenchymal stem cells (MSCs) absorb lots of attention due to its immunomodulatory properties. So, we examined the effects of mesenchymal stem cells-conditioned medium (MSC-CM) in the experimental model of acute colitis...
November 4, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29108872/corrigendum-to-the-possible-role-of-interleukin-35-and-its-therapeutic-potential-in-pemphigus-int-immunol-42-2017-11-17
#13
Soheil Tavakolpour, Forough Kheiry, Hajar SadatMirsafaei, Meisam Akhlaghdoust
No abstract text is available yet for this article.
November 3, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29107864/trpm2-dependence-of-ros-induced-nlrp3-activation-in-alzheimer-s-disease
#14
Malihe Aminzadeh, Mehrdad Roghani, Azadeh Sarfallah, Gholam Hossein Riazi
Recent studies have shown that neuroinflammation plays an important role in Alzheimer's disease (AD). Microglial cells are responsible for the phagocytosis of Amyloid-β (Aβ). However, it has been demonstrated that in AD patients the efficiency of phagocytosis decreases due to proinflammatory cytokines, such as Interleukin-1β (IL-1β), which is produced through the activation of NLRP3 inflammasome. In this study, we aimed at deciphering the mechanism underlying the NLRP3 activation. The results showed that Aβ induces an increase in the level of reactive oxygen species (ROS)...
November 3, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29107863/elevated-expression-of-mir-146-mir-139-and-mir-340-involved-in-regulating-th1-th2-balance-with-acute-exposure-of-fine-particulate-matter-in-mice
#15
Tianfang Hou, Jiping Liao, Cheng Zhang, Chao Sun, Xueying Li, Guangfa Wang
Airborne fine particulate matter (PM2.5) is detrimental to human health, and frequently leads to a variety of lung diseases. Recently, IARC conclude that particulate matter is carcinogenic to humans (level one). However, the pulmonary toxicological mechanism induced by PM2.5 remains obscure. Our previous studies confirmed that PM2.5 hurt the human immune system by means of causing the imbalance of Th1/Th2 lymphocytes. MicroRNAs (miRNAs) are post-transcriptional gene suppressors and potential mediators of environmental effects, which play an important role in the regulation of CD4(+)T lymphocyte differentiation...
November 3, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29107862/gypsophila-elegans-isoorientin-2%C3%A2-o-%C3%AE-l-arabinopyranosyl-ameliorates-porcine-serum-induced-immune-liver-fibrosis-by-inhibiting-nf-%C3%AE%C2%BAb-signaling-pathway-and-suppressing-hsc-activation
#16
Facheng Bai, Quanfang Huang, Jinbin Wei, Shujuan Lv, Yuxin Chen, Chunhong Liang, Ling Wei, Zhongpeng Lu, Xing Lin
The present study was to investigate the inhibitory effect of Gypsophila elegans isoorientin-2″-O-α-l-arabinopyranosyl (GEI) on hepatic stellate cells (HSCs), to reveal the underlying mechanism of GEI against hepatic fibrosis. Our study showed that GEI significantly alleviated liver injury induced by porcine serum (PS) in rats; it notably alleviated collagen accumulation as evidenced by a significant decrease in the levels of collagen biomarkers including hyaluronic acid, laminin, hydroxyproline and procollagen III N-terminal peptide...
November 3, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29101873/cathelicidin-wa-polarizes-e-coli-k88-induced-m1-macrophage-to-m2-like-macrophage-in-raw264-7-cells
#17
Shan Chen, Zeqing Lu, Fengqin Wang, Yizhen Wang
Immune cells - macrophages induced by E. coli K88 will lead to a pro-inflammatory response, which is important in host defense. Cathelicidin-WA (CWA) is an efficient antimicrobial peptide (AMP) and can exert immunomodulatory properties. Many studies have demonstrated that AMP can modulate cellular subsets but whether CWA can regulate macrophage polarization by transferring E. coli K88-induced M1 macrophage towards M2 one that of anti-inflammation remains unclear. In this study, E. coli K88 increased the expression of pro-inflammatory cytokines interleukin-6, interleukin-1β, tumor necrosis factor-α and chemokine CCL3 in RAW264...
November 1, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29100037/dexmedetomidine-promotes-liver-regeneration-in-mice-after-70-partial-hepatectomy-by-suppressing-nlrp3-inflammasome-not-tlr4-nf%C3%AE%C2%BAb
#18
Meihong Lv, Huizhi Zeng, Yi He, Jiashu Zhang, Guang Tan
Inflammasome activation is mediated by NOD-like receptors (NLRs) that play important role in cellular proliferation. NLRP3 senses the widest array of stimuli. But its role in the liver regeneration after partial hepatectomy (PHx) is still unknown. Dexmedetomidine (Dex) has been documented to protect the liver against ischemia-reperfusion injury via the suppression of the TLR4/NF-κB pathway, which is important for NLRP3 inflammasome activation and liver regeneration. We tested whether Dex contributes to liver regeneration, and investigated its consequent effect on inflammasome activation...
October 31, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29100036/nafamostat-mesilate-a-serine-protease-inhibitor-suppresses-interferon-gamma-induced-up-regulation-of-programmed-cell-death-ligand-1-in-human-cancer-cells
#19
Sadamu Homma, Kazumi Hayashi, Kosaku Yoshida, Yukiko Sagawa, Yuko Kamata, Masaki Ito
Programmed cell death ligand-1 (PD-L1) plays a pivotal role in the suppression of antitumour immunity by binding to programmed cell death-1 (PD-1) on tumouricidal cytotoxic T lymphocytes (CTLs), rendering them inactive. As blockade of PD-1/PD-L1 interaction by the monoclonal antibodies induced effective T cell-mediated antitumour response, suppression of PD-L1 expression in tumour cells by the chemical agent might contribute to treatment against malignant tumours. Nafamostat mesilate (NM), a serine protease inhibitor that is frequently used in the clinic, potently suppressed interferon-gamma (IFN-gamma)-induced up-regulation of PD-L1 in cultured human lung cancer cells (HLC-1) at both the messenger RNA (mRNA) and protein levels...
October 28, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29100035/the-role-of-human-chorionic-gonadotropin-in-regulation-of-na%C3%A3-ve-and-memory-t-cells-activity-in-vitro
#20
S A Zamorina, L S Litvinova, K A Yurova, O G Khaziakhmatova, V P Timganova, M S Bochkova, P V Khramtsov, M B Rayev
The role of human chorionic gonadotropin (hCG) in the regulation of molecular genetics factors determining the functional activity of human naïve and memory T cells in vitro was studied. It was found that hCG (10 and 100IU/ml) inhibited CD28 and CD25 expression on the naïve T cells (CD45RA+) and CD25 expression on the memory T cells (CD45R0+). hCG didn't affect the CD71 proliferation marker expression in total. Nevertheless, hCG reduced the percentage of proliferating memory T cells with simultaneous suppression of CD71 expression on proliferating CD45R0+cells...
October 28, 2017: International Immunopharmacology
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