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Immunopharmacology and Immunotoxicology

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https://www.readbyqxmd.com/read/29447014/macrophage-migration-inhibitory-factor-mif-inhibitor-z-590-suppresses-cartilage-destruction-in-adjuvant-induced-arthritis-via-inhibition-of-macrophage-inflammatory-activation
#1
Zhiyu Zhang, Rong Zhang, Linlang Li, Lijun Zhu, Shiyuan Gao, Qiran Lu, Yihui Gu, Yu Zhang, Huicui Yang, Tingjun Hou, Xuechu Zhen, Long Tai Zheng
INTRODUCTION: Macrophage migration inhibitory factor (MIF) is a pleiotropic pro-inflammatory mediator that is involved in the progression of rheumatoid arthritis (RA). Previously, we demonstrated a small molecule compound 3-[(biphenyl-4-ylcarbonyl) carbamothioyl] amino benzoic acid (Z-590) could inhibit MIF activity with docking-based virtual screening and experimental evaluation. MATERIALS AND METHODS: The LPS activated RAW264.7 macrophage cells were used to determine the anti-inflammatory effects of Z-590 in vitro...
February 15, 2018: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29447007/valsartan-attenuates-bleomycin-induced-pulmonary-fibrosis-by-inhibition-of-nf-%C3%AE%C2%BAb-expression-and-regulation-of-th1-th2-cytokines
#2
Hoda Mojiri-Forushani, Ali Asghar Hemmati, Ali Khodadadi, Mohammad Rashno
OBJECTIVE: Pulmonary fibrosis (PF) is a chronic respiratory system disease. The role of inflammation and angiotensin in the development and progression of PF has previously been demonstrated. Alternation in antifibrotic/profibrotic mediators and NF-κB activation have important roles in PF development. NF-κB, a nuclear factor, induces the transcription of inflammatory and pro-inflammatory cytokines. The aim of this study was to evaluate the effect of valsartan as an angiotensin receptor blocker on IL-4, INF-γ, and NF-κB expression in the treatment of PF...
February 15, 2018: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29433403/the-essential-role-of-g-protein-coupled-receptor-gpcr-signaling-in-regulating-t-cell-immunity
#3
Dashan Wang
AIM: The aim of this paper is to clarify the critical role of GPCR signaling in T cell immunity. METHODS: The G protein-coupled receptors (GPCRs) are the most common targets in current pharmaceutical industry, and represent the largest and most versatile family of cell surface communicating molecules. GPCRs can be activated by a diverse array of ligands including neurotransmitters, chemokines as well as sensory stimuli. Therefore, GPCRs are involved in many key cellular and physiological processes, such as sense of light, taste and smell, neurotransmission, metabolism, endocrine and exocrine secretion...
February 12, 2018: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29433367/experimental-animal-models-for-rheumatoid-arthritis
#4
Narayan Choudhary, Lokesh K Bhatt, Kedar S Prabhavalkar
Rheumatoid Arthritis (RA) is an autoimmune systemic disorder of unknown etiology and is characterized by chronic inflammation and synovial infiltration of immune cells. RA is associated with decreased life expectancy and quality of life. The research on RA is greatly simplified by animal models that help us to investigate the complex system involving inflammation, immunological tolerance and autoimmunity. The animal models of RA with a proven track record of predictability for efficacy in humans include: collagen type II induced arthritis in rats as well as mice, adjuvant induced arthritis in rats and antigen induced arthritis in several species...
February 12, 2018: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29433360/ampk-nrf2-signaling-is-involved-in-the-anti-neuroinflammatory-action-of-petatewalide-b-from-petasites-japonicus-against-lipopolysaccharides-in-microglia
#5
Sun Young Park, Min Hyun Choi, Mei Li, Ke Li, Geuntae Park, Young-Whan Choi
OBJECTIVES: Abnormal microglia secrete neuroinflammatory factors that play a pivotal role in neurodegenerative-disorder development. Thus, regulating abnormal microglia-activation could be a promising therapeutic strategy. The purposes of this study included investigating the effect of Petatewalide B on lipopolysaccharide- (LPS-) stimulated microglia and exploring the role of the AMPK/Nrf2- (adenosine monophosphate-activated protein kinase/nuclear factor erythroid 2-related factor 2) signaling pathway in the anti-neuroinflammatory function of Petatewalide B...
February 12, 2018: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29411665/immunomodulatory-potential-of-recombinant-filarial-protein-rwbl2-and-its-therapeutic-implication-in-experimental-ulcerative-colitis-in-mouse
#6
Namdev Togre, Priyanka Bhoj, Nitin Amdare, Kalyan Goswami, Aaditya Tarnekar, Moreshwar Shende
OBJECTIVE: Immunomodulation by helminth proteins has potential therapeutic implications in inflammatory bowel disease. In the present study, we have explored the therapeutic effect of a RAL family protein of filarial parasite Wuchereria bancrofti i.e., rWbL2 protein against DSS induced colitis in a mouse model. MATERIALS AND METHODS: Anti-inflammatory activity of rWbL2 on mice peritoneal exudate cells was analyzed under in vitro condition. The colitis mice were treated intraperitoneally (i...
February 7, 2018: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29405080/artesunate-enhances-%C3%AE-%C3%AE-t-cell-mediated-antitumor-activity-through-augmenting-%C3%AE-%C3%AE-t-cell-function-and-reversing-immune-escape-of-hepg2-cells
#7
Peng Qian, Yong-Wen Zhang, Zhong-Hai Zhou, Jun-Quan Liu, Su-Yang Yue, Xiang-Li Guo, Lei-Qing Sun, Xiao-Ting Lv, Jian-Qun Chen
OBJECTIVE: To explore the effect and mechanism of artesunate on γδ T cell-mediated antitumor immune responses against hepatoma carcinoma cells (HepG2) in vitro. METHODS: Human γδ T cells or HepG2 were respectively treated with artesunate, subjected to co-culture as appropriate, and the following assays were subsequently conducted: CCK8 to examine cell viability; LDH release assay to detect the killing effect of γδ T cells on HepG2 cells; flow cytometry to examine the expression of perforin (PFP) and granzyme B (GraB) of γδ T cells; ELISA to evaluate the levels of TGF-β1 and IL-10 in the collected supernatant of HepG2 cells pretreated with artesunate; and Western blot analysis to examine Fas, FasL, STAT3, p-STAT3 expression of HepG2 cells induced by artesunate...
February 6, 2018: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29388481/chemotherapy-alters-the-increased-numbers-of-myeloid-derived-suppressor-and-regulatory-t-cells-in-children-with-acute-lymphoblastic-leukemia
#8
Mohamed Labib Salem, Mohamed R El-Shanshory, Said H Abdou, Mohamed S Attia, Shymaa M Sobhy, Mona F Zidan, Abdel-Aziz A Zidan
INTRODUCTION: Acute lymphoblastic leukemia (ALL) is the most common cancer diagnosed in children. The precise mechanism behind the relapse in this disease is not clearly known. One possible mechanism could be the accumulation of immunosuppressive cells, including myeloid-derived suppressor cells (MDSCs) and T regulatory cells (Tregs) which we and others have reported to mediate suppression of anti-tumor immune responses. AIM: In this study, we aimed to analyze the numbers of these cells in a population of B-ALL pediatric patients...
February 1, 2018: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29355065/effect-of-combination-of-vitamin-e-and-umbilical-cord-derived-mesenchymal-stem-cells-on-inflammation-in-mice-with-acute-kidney-injury
#9
Qiongqiong Guo, Junxia Wang
BACKGROUND: The objective of this study is to investigate the effect of combination of umbilical cord-derived mesenchymal stem cell (UC-MSC) and vitamin E (VitE) on inflammation in mice with acute kidney injury (AKI). METHODS: UC-MSCs were isolated from pregnant wistar mice and cultured. A total of 90 female wistar mice were randomly divided into control group, AKI group, AKI + VitE group, AKI + UC-MSC group, and AKI + VitE + UC-MSC group (18 mice in each group) which were given no treatment, normal saline, VitE, UC-MSC, and VitE + UC-MSC, respectively...
January 22, 2018: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29355056/anti-inflammatory-effects-of-trans-cinnamaldehyde-on-lipopolysaccharide-stimulated-macrophage-activation-via-mapks-pathway-regulation
#10
Mi Eun Kim, Ju Yong Na, Jun Sik Lee
OBJECTIVES: Inflammation is a primary response of the innate immune system against various infections. Macrophages are a type of immune cell that have a critical role in the inflammation. Recent studies reported that various natural compounds could regulate immune responses such as inflammation. Trans-cinnamaldehyde (TCA) is a natural compound from cinnamon, especially abundant in cinnamon bark. Previous studies reported that TCA has anti-biofilm, anti-microbial, and anti-cancer activities...
January 22, 2018: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29355053/harpagoside-induced-anaphylactic-reaction-in-an-ige-independent-manner-both-in-vitro-and-in-vivo
#11
Delu Che, Jiao Cao, Rui Liu, Jue Wang, Yajing Hou, Tao Zhang, Nan Wang
BACKGROUND: Harpagoside (HAR) is an active component of Scrophularia ningpoensis (SN), which has anti-inflammatory and anti-immune effects. SN is used widely in China to treat various diseases. Recently, SN has been used as a traditional Chinese medicine injection and used clinically. However, allergic responses to these injections are frequently reported. AIM: We examined whether the main component of SN, HAR, is associated with the allergic reaction to SN. METHODS: This study assessed the effects of HAR in mice and mast cell activation to characterize its anaphylactic effects and underlying mechanisms...
January 22, 2018: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29350096/%C3%AE-tocopherol-protected-against-cobalt-nanoparticles-and-cocl2-induced-cytotoxicity-and-inflammation-in-balb-3t3-cells
#12
Xin Yan, Yake Liu, Tian Xie, Fan Liu
CONTEXT: Currently, tissue damage induced by cobalt nanoparticles (CoNPs) and cobalt ions (Co2+) are the most serious adverse effect in the patients with metal-on-metal hip prostheses. Therefore, an urgent need exists for the identification of the mechanisms and the development of therapeutic strategies to limit it. OBJECTIVE: We aimed to explore the mechanisms of cytotoxicity of CoNPs and Co2+ and developed strategies to reduce this cytotoxicity with α-tocopherol treatment...
January 19, 2018: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29303022/cardamonin-inhibits-pro-inflammatory-cytokine-production-and-suppresses-no-pathway-in-pbmcs-from-patients-with-primary-sj%C3%A3-gren-s-syndrome
#13
Sarah Benchabane, Houda Belguendouz, Nassima Behairi, Amina Arroul-Lammali, Abdelhalim Boudjelida, Pierre Youinou, Chafia Touil-Boukoffa
Primary Sjögren's syndrome (pSS) is a systemic autoimmune disorder with a complex pathophysiology primarily affecting exocrine glands, leading to compromised secretory function. Recent studies imply that many inflammatory mediators, such as pro-inflammatory cytokines and nitric oxide, are critical in the development and perpetuation of pSS systemic manifestations. In the current study, we aimed to investigate the ex vivo immunomodulatory effect of cardamonin (C16H14O4), on pro-inflammatory cytokines, TNF-α, IL-6 and inducible nitric oxide synthase (iNOS) expression during pSS...
January 5, 2018: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29303021/therapeutic-effect-of-acetazolamide-an-aquaporin-1-inhibitor-on-adjuvant-induced-arthritis-in-rats-by-inhibiting-nf-%C3%AE%C2%BAb-signal-pathway
#14
Li Cai, Wei-Na Chen, Rong Li, Cheng-Mu Hu, Chao Lei, Chun-Mei Li
OBJECTIVES: Previous studies have shown that aquaporin 1 (AQP1) is up-regulated in synovium and cartilage of rheumatoid arthritis (RA) patients and that AQP1 may be involved in joint swelling and synovial inflammation. This study was aimed to investigate the potential therapeutic effect of acetazolamide (AZ, an AQP1 inhibitor) on rat adjuvant-induced arthritis (AIA) and explore its related mechanisms. MATERIALS AND METHODS: Rat AIA was induced by complete Freund's adjuvant...
January 5, 2018: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29303018/the-%C3%AE-2-adrenoceptor-agonist-clenbuterol-reduces-the-neuroinflammatory-response-neutrophil-infiltration-and-apoptosis-following-intra-striatal-il-1%C3%AE-administration-to-rats
#15
Éadaoin W Griffin, Justin D Yssel, Eoin O'Neill, Katie J Ryan, Noreen Boyle, Peter Harper, Andrew Harkin, Thomas Connor
OBJECTIVES: Clenbuterol is a brain penetrant β2-adrenoceptor agonist with anti-inflammatory and putative neuroprotective properties. In the present investigation, the effect of clenbuterol was assessed in a rat model of acute brain injury induced by intra-striatal administration of the pro-inflammatory cytokine IL-1β. METHODS: Clenbuterol (0.5 mg/kg; i.p.) was administered one hour prior to stereotactically delivered IL-1β (100 ng) into the striatum. Four hours postinjection, rats were anesthetized, blood samples were collected for circulating cytokine and chemokine analysis, and the ipsilateral striatum and liver tissue were harvested for mRNA expression analysis of target genes...
January 5, 2018: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29303013/inhibition-of-plasma-kallikrein-kinin-system-to-alleviate-renal-injury-and-arthritis-symptoms-in-rats-with-adjuvant-induced-arthritis
#16
Jie Zhu, Hui Wang, Jingyu Chen, Wei Wei
BACKGROUND: Rheumatoid arthritis (RA) is a chronic systemic autoimmune disease. Impairment of kidney functions in RA was observed. However, the mechanism of kidney injury of RA has not been clear. Plasma kallikrein-kinin system (KKS) was involved in inflammatory processes in kidney disease. AIM: This study aimed to explore the role of plasma KKS in immune reactions and kidney injury of RA. RESULTS: The paw of AA rats appeared to be swelling and redness, the arthritis index was significantly increased on the 18, 21 and 24 d after injection and secondary inflammation in multi-sites was observed...
January 5, 2018: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29303012/blockade-of-ccr5-mediated-myeloid-derived-suppressor-cell-accumulation-enhances-anti-pd1-efficacy-in-gastric-cancer
#17
Liu Yang, Bing Wang, Jian Qin, HengHua Zhou, Adhip P N Majumdar, Fei Peng
PURPOSE: Myeloid derived suppressor cells (MDSC) play an important role in tumor immune evasion and its level significantly increased in patients with gastric cancer. Studies confirmed the associations between MDSC and various cytokines in the peripheral blood. However, little is known about the mechanism drawing MDSC into tumor parenchyma. This study was to analyze the correlation between MDSC subsets and CCR5 level in gastric cancer. MATERIALS AND METHODS: G-MDSC and M-MDSC from the peripheral blood and tumor parenchyma were analyzed by flow cytometry...
January 5, 2018: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29299941/anti-inflammatory-effects-of-embelin-in-a549-cells-and-human-asthmatic-airway-epithelial-tissues
#18
In-Seung Lee, Dong-Hyuk Cho, Ki-Suk Kim, Kang-Hoon Kim, Jiyoung Park, Yumi Kim, Ji Hoon Jung, Kwanil Kim, Hee-Jae Jung, Hyeung-Jin Jang
OBJECTIVE: Allergic asthma is the most common type in asthma, which is defined as a chronic inflammatory disease of the lung. In this study, we investigated whether embelin (Emb), the major component of Ardisia japonica BL. (AJB), exhibits anti-inflammatory effects on allergic asthma via inhibition of NF-κB activity using A549 cells and asthmatic airway epithelial tissues. METHODS: Inflammation was induced in A549 cells, a human airway epithelial cell line, by IL-1β (10 ng/ml) treatment for 4 h...
January 4, 2018: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29219636/physiological-effects-of-brominated-flame-retardants-on-nc-nga-mice
#19
Michitaka Tanaka, Ken-Ichiro Inoue, Akinori Shimada, Hirohisa Takano
PURPOSE: Brominated flame retardants (BFRs) are used as an additive or reactive components in various materials. Regarding their health concerns, their immunotoxicity have not been clarified yet. MATERIALS AND METHODS: In the current study, we examined the effects of systemic exposure to two types of BFRs, DE71 and DE79, on pathophysiologic traits of murine atopic dermatitis (AD). Male NC/Nga mice were repeatedly injected intraperitoneally with DE71 and DE79 and/or mite allergen (Dermatophagoides pteronyssinus: Dp) into their right ears...
December 8, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29210292/the-role-of-lpd-nanoparticles-containing-recombinant-major-surface-glycoprotein-of-leishmania-rgp63-in-protection-against-leishmaniasis-in-murine-model
#20
Hengameh Firouzmand, Mehrnosh Sahranavard, Ali Badiee, Ali Khamesipour, Seyedeh Hoda Alavizadeh, Afshin Samiei, Dina Soroush, Masoumeh Tavassoti Kheiri, Fereidoun Mahboudi, Mahmoud Reza Jaafari
CONTEXT: Leishmaniasis is a major public health problem. Despite numerous attempts, yet there is no effective vaccine against human leishmaniasis, mainly due to a lack of an effective vaccine delivery system as well as adjuvant. OBJECTIVE(S): The aim of this study was to evaluate the ability of recombinant glycoprotein 63 (rgp63) as a model of Leishmania antigen, entrapped in liposome-polycation-DNA (LPD) complexes nanoparticles in inducing cell mediated immune (CMI) response and protecting against L...
December 6, 2017: Immunopharmacology and Immunotoxicology
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