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Immunopharmacology and Immunotoxicology

Issa Layali, Alireza Shahriary, Nima Rahmani Talatappe, Eisa Tahmasbpour, Hossein Rostami, Asghar Beigi Harchegani
CONTEXT: Sulfur mustard (SM) is a lipophilic and reactive chemical compound that targets human airway system. OBJECTIVE: Glutathione (GSH) depletion, oxidative stress (OS) status, and changes in expression of GSH-dependent antioxidant enzymes were considered in human mustard lungs. MATERIALS AND METHODS: Lung biopsies and bronchoalveolar lavage (BAL) were collected from non-exposed (n = 10) individuals and SM-exposed patients (n = 12)...
April 20, 2018: Immunopharmacology and Immunotoxicology
Chunhong Xiao, Hong Hong, Haizhong Yu, Jianfen Yuan, Chunyan Guo, Hongyan Cao, Weibing Li
OBJECTIVE: Janus kinase (JAK)-signal transducer and activator of transcription (STAT) signaling pathway is closely related to tumorigenesis. Suppressors of cytokine signaling 3 (SOCS3) is a negative regulator of JAK-STAT signaling pathway. MiR-340 expression is significantly upregulated in gastric cancer (GC) tissue. This study investigated the role of miR-340 in regulating SOCS3 expression and affecting GC cell proliferation, cycle, and apoptosis. PATIENTS AND METHODS: Dual luciferase assay was used to verify the targeted relationship between miR-340 and SOCS3...
April 16, 2018: Immunopharmacology and Immunotoxicology
Seyed Shahabeddin Mortazavi-Jahromi, Shahab Alizadeh, Mohammad Hassan Javanbakht, Abbas Mirshafiey
CONTEXT: The investigations have shown that patients with diabetes have the elevated levels of glucose and oxLDL. These two play an important role in increased expression levels of oxLDL scavenger receptors on the surface of macrophages and endothelial cells that leads to deposition of oxLDL and macrophages in vascular walls. OBJECTIVE: The present study intends to show the effects of β-d-mannuronic acid (M2000) on the expression profile of ox-LDL scavenger receptors (including SR-A, LOX-1, CD36, and CD68) in an experimental model of diabetes...
April 5, 2018: Immunopharmacology and Immunotoxicology
Niloofar Khalili, Ali Karimi, Mohammad-Taghi Moradi, Hedayatollah Shirzad
CONTEXT: The influenza A virus (IAV) causes severe respiratory disease that remains a leading reason for morbidity and mortality. Previous studies have indicated that influenza complications in addition to viral replication are due to overproduction of pro-inflammatory cytokines. Therefore, a new compound is needed to be used with current antiviral drugs to modulate overproduction of pro-inflammatory cytokines in IAV infection. OBJECTIVE: This study investigated the effect of celastrol on mRNA expression and concentration levels of the pro-inflammatory cytokines tumor necrosis factor alpha (TNFα) and interleukin-6 (IL6) that are induced by influenza A/Puerto Rico/8/34 (H1N1; PR8) in Madin-Darby Canine Kidney (MDCK) cells...
March 1, 2018: Immunopharmacology and Immunotoxicology
Divya Singh, Himanshi Tanwar, Sudeshna Das, Lilly Ganju, Shashi Bala Singh
OBJECTIVE: Kaempferol, a natural flavonol present in various traditional medicinal plants, is known to possess potent anti-inflammatory properties. This study was designed to study the adjuvant effect of kaempferol administration along with ovalbumin antigen (K + O) in balb/c mice. METHODS: Mice were immunized with kaempferol (100 and 50 mg/kg body weight) without or with ovalbumin (20 µg/mouse). After priming, booster was administered on day 21. Antigen specific IgG titers and its subtypes, on day 28, were estimated by indirect ELISA...
February 28, 2018: Immunopharmacology and Immunotoxicology
Mahya Najjari, Gholamhassan Vaezi, Vida Hojati, Zahra Mousavi, Azam Bakhtiarian, Vahid Nikoui
PURPOSE: Evidence show that statins possess wide beneficial cardioprotective and anti-inflammatory effects; therefore, in the present experiment, we investigated the antiarrhythmic properties of atorvastatin in ouabain-induced arrhythmia in isolated rat atria and the role of several inflammatory cytokines in this effect. MATERIALS AND METHODS: Male rats were pretreated with either of atorvastatin (10 mg/kg) or vehicle, orally once daily for 6 weeks. After induction of anesthesia, we isolated the atria and after incubation with ouabain, time of onset of arrhythmia and asystole as well as atrial beating rate and contractile force were recorded...
February 28, 2018: Immunopharmacology and Immunotoxicology
Przemysław Liczbiński, Bożena Bukowska
Amygdalin, named as 'laetrile' and 'vitamin B-17' was initially supposed to be a safe drug for cancer treatment and was recognized by followers of natural medicine since it has been considered to be hydrolyzed only in cancer cells releasing toxic hydrogen cyanide (HCN), and thus destroying them. Unfortunately, current studies have shown that HCN is also released in normal cells, therefore it may not be safe for human organism. However, there have still been research works conducted on anti-cancer properties of this compound...
February 28, 2018: Immunopharmacology and Immunotoxicology
Wei Wang, XiaoGuang Li, Jie Xu
CONTEXT: Acute hepatic failure involves in serious inflammatory responses and leads to a high mortality. Magnesium isoglycyrrhizinate (MgIG), a magnesium salt of 18-α glycyrrhizic acid (GA) stereoisomer, has been shown anti-inflammatory activity previously. OBJECTIVE: This study aimed to investigate the protective effects of MgIG, a hepatocyte protective agent, on D-galactosamine and lipopolysaccharide (D-GaIN/LPS)-induced acute liver injury in rats, and meanwhile explore the molecular mechanism...
February 28, 2018: Immunopharmacology and Immunotoxicology
Fatemeh Safari, Safar Farajnia, Maryam Arya, Habib Zarredar, Ava Nasrolahi
INTRODUCTION: Rheumatoid arthritis (RA), as one of the most disabling autoimmune diseases, is a common health problem that progressively reduces the life quality of patients. Although various biologics have been introduced for RA, attempts to establish an efficient long-term therapies failed due to the heterogeneity of this disease. METHODS: In the last decade, immunomodulatory approaches such as T cell adoptive therapy have been developed for controlling autoimmunity...
February 23, 2018: Immunopharmacology and Immunotoxicology
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
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
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
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
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
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
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
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
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...
April 2018: Immunopharmacology and Immunotoxicology
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...
April 2018: Immunopharmacology and Immunotoxicology
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...
April 2018: Immunopharmacology and Immunotoxicology
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