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Immunopharmacology and Immunotoxicology

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https://www.readbyqxmd.com/read/27908221/dasatinib-prevent-hepatic-fibrosis-induced-by-carbon-tetrachloride-ccl4-via-anti-inflammatory-and-antioxidant-mechanism
#1
Adel Mohammadalipour, Jamshid Karimi, Iraj Khodadadi, Ghasem Solgi, Mohammad Hashemnia, Nasrin Sheikh, Majid Bahabadi
OBJECTIVES: Dasatinib, a potent and broad-spectrum tyrosine kinase inhibitor, is approved for the treatment of imatinib-resistant chronic myelogenous leukemia. The aim of this study was to evaluate the anti-fibrotic, anti-inflammatory and antioxidant effects of this agent against CCl4-induced hepatic fibrosis and oxidative status. MATERIALS AND METHODS: Experimental fibrosis was induced in Wistar male rats by 12 weeks of CCl4 administration (i.p.). During the last 8 weeks of injection, rats were gavaged daily with Dasatinib (10 mg/kg)...
December 1, 2016: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/27875906/the-therapeutic-effects-of-cholecystokinin-octapeptide-on-rat-liver-and-kidney-microcirculation-disorder-in-endotoxic-shock
#2
Dong Zhang, Hui Li, Jing Geng, Yingmin Li, Shujin Li, Chunling Ma, Bin Cong, Xiaojing Zhang
OBJECTIVES: Our previous studies demonstrated that pretreatment with cholecystokinin octapeptide (CCK-8) could alleviate endothelial cell injury and reverse abnormal vascular reactivity as well as reduce LPS-induced inflammation cascades, which suggested that CCK-8 plays a potential role in anti-endotoxic shock. The present study aimed to determine the therapeutic effects of CCK-8 on rat liver and kidney microcirculatory perfusion disorder under endotoxic shock (ES) conditions. MATERIALS AND METHODS: Sprague-Dawley rats were induced to lethal endotoxic shock by an injection of LPS...
November 22, 2016: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/27788611/helicobacter-pylori-liver-cirrhosis-and-portal-hypertension-an-updated-appraisal
#3
Raffaele Licinio, Giuseppe Losurdo, Sonia Carparelli, Andrea Iannone, Floriana Giorgio, Michele Barone, Mariabeatrice Principi, Enzo Ierardi, Alfredo Di Leo
OBJECTIVE: Helicobacter pylori (H. pylori) is the most common cause of gastritis and peptic ulcer. However, H. pylori is even involved in extragastric diseases, and it has been hypothesized that H. pylori could be a risk factor for several hepatic diseases. For instance, a direct involvement of H. pylori in the development of portal hypertension (PH) in cirrhotic patients has been postulated. METHODS: We performed a literature search in major databases to elucidate the relationship between H...
October 27, 2016: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/27788606/florfenicol-induces-more-severe-hemotoxicity-and-immunotoxicity-than-equal-doses-of-chloramphenicol-and-thiamphenicol-in-kunming-mice
#4
Dongfang Hu, Ziqiang Han, Chunling Li, Lin Lv, Zilong Cheng, Sidang Liu
Amphenicols are effective, broad-spectrum antibiotics that function by inhibiting the peptidyl transferase activity of bacteria, while the drugs can also inhibit mitochondrial protein synthesis in eukaryotes through the same mechanism, which leads to multi-organ toxicity. Some side effects of each drug have been studied, while differences in the severity of the hemotoxicities and immunotoxicities of amphenicols have not been reported. Thus, it is important to identify, evaluate, and compare the potential hemotoxicities and immunotoxicities to guide their proper use in humans and animals, which will guarantee food safety and animal welfare...
October 27, 2016: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/27788604/pirfenidone-exerts-a-suppressive-effect-on-ccl18-expression-in-u937-derived-macrophages-partly-by-inhibiting-stat6-phosphorylation
#5
Yoshinobu Saito, Arata Azuma, Kuniko Matsuda, Koichiro Kamio, Shinji Abe, Akihiko Gemma
CONTEXT: CC chemokine ligand 18 (CCL18) is suggested to play a role in the development of pulmonary fibrosis. Macrophages are thought to be the main source of CCL18, and the effect of pirfenidone, an anti-fibrotic agent for idiopathic pulmonary fibrosis, on the expression of CCL18 in macrophages warrants investigation. OBJECTIVE: The purpose of this study was to investigate the effect of pirfenidone on the expression of CCL18 in macrophages. MATERIALS AND METHODS: U937 cells were differentiated into macrophages by phorbol myristate acetate and then stimulated with recombinant IL-4 to induce the production of CCL18...
October 27, 2016: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/27750449/regulatory-effects-of-mir-155-and-mir-146a-on-repolarization-and-inflammatory-cytokine-secretion-in-human-alveolar-macrophages-in-vitro
#6
Yang Yang, Ben-Quan Wu, Yan-Hong Wang, Yun-Feng Shi, Jin-Mei Luo, Jun-Hui Ba, Hui Liu, Tian-Tuo Zhang
Macrophages play an important role in inflammatory responses; however, miRNA-mediated repolarization of macrophages is essential for fulfilling this function. To clarify a series of changes at the RNA level in alveolar macrophages under normal and inflammatory conditions, bronchial alveolar lavage liquid (BALF) was collected from healthy volunteers or patients with pneumonia. This approach, which differs from that used in previously, provides more accurate information about the states of macrophages in different lung microenvironments...
October 18, 2016: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/27750438/protective-effect-of-cinnamicaldehyde-in-endotoxin-poisoning-mice
#7
Feng Xu, Taoqun Wen, Feng Wang, Wentao Sang, Nan Zeng
CONTEXT: Several pharmacological studies have shown that cinnamicaldehyde (CA) has anti-inflammatory and anti-tumor effects, but no data show the effects of CA on the endotoxin poisoning. OBJECTIVE: In this work, the protective effect of CA in LPS-induced endotoxin poisoning mice was investigated. MATERIALS AND METHODS: Mice were randomly divided into normal, LPS, LPS +5 mg/kg dexamethasone (DEX), LPS +0.132 g/kg CA, and LPS +0.264 g/kg CA group...
October 18, 2016: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/27748636/influence-of-5-amino-3-methyl-4-isoxazolecarbohydrazide-on-selective-gene-expression-in-caco-2-cultured-cells
#8
Paulina Płoszaj, Andrzej Regiec, Stanisław Ryng, Agnieszka Piwowar, Marian L Kruzel
The 5-amino-3-methyl-4-isoxazolecarboxylic acid hydrazide (HIX) is a synthetic isoxazole derivative with a potential for development as an anti-inflammatory drug candidate. The goal of this study was to explore in vitro autoimmune and inflammatory gene modulation by HIX in human Caco-2 cultured cells. The effect of low dose of HIX was tested on the expression level of RNA in 24h Caco-2 cultures using the QIAGEN Th17 for Autoimmunity & Inflammation RT(2) Profiler PCR Array. We choose the PCR technology as the most reliable and sensitive gene expression profiling method for analyzing specific gene regulatory networks...
October 17, 2016: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/27660891/the-increasingly-anti-tumor-effect-of-a-colonic-carcinoma-dna-vaccine-carrying-her2-by-the-adjuvanticity-of-il-12
#9
Ping Gao, Chunhua Zhang, Xiaoxia Bian, Yanjun Guo, Yueguang Wei, Li Zhang, Zhaoyang Liu, Xiuying Wang, Shumin Huang
The present study aimed to determine the effect of recombinant DNA vaccine-based human epidermal growth factor receptor-2 (HER2) and Interleukin 12 (IL-12) on the development of colonic carcinoma in mice and the potential immune mechanisms involved. Recombinant plasmids pVAX1-HER2, pVAX1-IL-12 and pVAX1-HER2-IL-12 were constructed, and injected into female mice intramuscularly (i.m.) followed by an electric pulse. The humoral and cellular immune responses after immunization were examined by enzyme linked immunosorbent assay (ELISA) and enzyme-linked immunospot assay (ELISPOT), respectively...
September 23, 2016: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/27604679/humanized-mouse-as-an-appropriate-model-for-accelerated-global-hiv-research-and-vaccine-development-current-trend
#10
Bartholomew Okechukwu Ibeh, Yasuhide Furuta, Josiah Bitrus Habu, Lucy Ogbadu
Humanized mouse models currently have seen improved development and have received wide applications. Its usefulness is observed in cell and tissue transplant involving basic and applied human disease research. In this article, the development of a new generation of humanized mice was discussed as well as their relevant application in HIV disease. Furthermore, current techniques employed to overcome the initial limitations of mouse model were reviewed. Highly immunodeficient mice which support cell and tissue differentiation and do not reject xenografts are indispensable for generating additional appropriate models useful in disease study, this phenomenom deserves emphases, scientific highlight and a definitive research focus...
September 23, 2016: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/27644482/involvement-of-ppar%C3%AE-in-the-protective-action-of-tropisetron-in-an-experimental-model-of-ulcerative-colitis
#11
Reza Rahimian, Mohammad Reza Zirak, Mojtaba Keshavarz, Nahid Fakhraei, Ahmad Mohammadi-Farani, Hanan Hamdi, Kazem Mousavizadeh
Inflammatory bowel disease (IBD) is a chronic inflammation of the gastrointestinal (GI) tract. Tropisetron, a selective 5-HT3 receptor antagonist, is highly used to counteract chemotherapy-induced emesis. Previous studies revealed the anti-inflammatory properties of this drug. The aim of this study was to evaluate the role of peroxisome proliferator-activated receptor gamma (PPARγ) receptor in the protective effect of tropisetron in an animal model of ulcerative colitis. Experimental colitis was induced by a single intra-colonic instillation of 4% (V/V) acetic acid in male rats...
September 20, 2016: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/27819568/the-toxicity-of-continuous-long-term-low-dose-formaldehyde-inhalation-in-mice
#12
Jiaying Cheng, Long Zhang, Yufu Tang, Zhenhai Li
Although the toxicity of high-dose formaldehyde (FA) inhalation has been extensively analyzed in animals, the effect of continuous long-term exposure to low-dose FA has not been well documented. This study aims to evaluate the toxicity of continuous long-term low-dose FA inhalation in mice. Forty-eight Kunming male mice were equally randomized to three groups according to the dose of FA inhalation exposure: a control (0 mg/m(3)) group, a low-dose (0.08 mg/m(3)) group and a high-dose (0.8 mg/m(3)) group...
December 2016: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/27560832/histamine-regulates-murine-primary-dendritic-cell-functions
#13
Heiko Schenk, Detlef Neumann, Christina Kloth
OBJECTIVE AND DESIGN: The modulation of antigen uptake and activation of dendritic cells (DCs) by histamine may function as a regulator of inflammation. Therefore, we sought to determine the impact of histamine on antigen uptake by and activation of murine DCs. MATERIAL AND METHODS: DCs from spleen and lung were either identified by flow cytometry or were immunomagnetically enriched. Cells were stimulated with histamine, and the regulation of MHC-II and co-stimulatory molecule expression (CD80, CD86, and ICOS-L) and antigen uptake were quantified by flow cytometry...
October 2016: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/27443993/effects-of-insulin-on-pharmacodynamics-of-immunosuppressive-drugs-against-mitogen-activated-human-peripheral-blood-mononuclear-cells
#14
Shuiling Chen, Kentaro Sugiyama, Mariko Inamura, Sachiko Tanaka, Kenji Onda, Huijun Yin, Toshihiko Hirano
CONTEXT: Diabetes mellitus is one of the most common causes of chronic renal failure. Immunosuppressive efficacies of glucocorticoids, calcineurin inhibitors, and mycophenolic acid are possibly affected by insulin after renal transplantation in these patients. OBJECTIVES: We investigated the effects of insulin on responses of mitogen-activated human peripheral blood mononuclear cells (PBMCs) to several immunosuppressive drugs. MATERIALS AND METHODS: Antiproliferative efficacies of prednisolone, hydrocortisone, cyclosporine, tacrolimus, and mycophenolic acid against concanavalin A-stimulated PBMCs were evaluated in the presence of physiological (5 μunits/mL) and super physiological (50 μunits/mL) concentrations of insulin...
October 2016: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/27427274/hesperidin-prevents-lipopolysaccharide-induced-endotoxicity-in-rats
#15
Solomon Oladapo Rotimi, Goodness Esther Bankole, Isaacson Bababode Adelani, Oluwakemi Anuoluwapo Rotimi
CONTEXT: Lipopolysaccharide (LPS) is a major trigger of septic shock resulting in multiple organ damage through excessive stimulation of the host's immune cells resulting in the release of cytokines. Previous studies have shown that hesperidin has several beneficial properties against inflammation and oxidative stress. OBJECTIVE: The influence of hesperidin on endotoxemia, endothelial dysfunction, inflammation, and oxidative stress was investigated using a murine model of sepsis...
October 2016: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/27367537/n-3-fatty-acids-modulate-the-mrna-expression-of-the-nlrp3-inflammasome-and-mtor-in-the-liver-of-rats-fed-with-high-fat-or-high-fat-fructose-diets
#16
Natalia Garay-Lugo, Aarón Domínguez-Lopez, Angel Miliar García, Eliud Aguilar Barrera, Modesto Gómez López, Alejandro Gómez Alcalá, Maria de Los Angeles Martínez Godinez, Eleazar Lara-Padilla
CONTEXT: There is evidence that n-3 polyunsaturated fatty acids (n-3-PUFAs) can inhibit mTORC1, which should potentiate autophagy and eliminate NLRP3 inflammasome activity. OBJECTIVE: Evaluate the effect of a high-fat or high-fat/fructose diet with and without n-3-PUFAs on hepatic gene expression. MATERIALS AND METHODS: We examined the mRNA expression by RT-PCR of Mtor, Nlrp3, and other 22 genes associated with inflammation in rats livers after a 9-week diet...
October 2016: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/27324858/inhibition-of-the-nf-%C3%AE%C2%BAb-and-p38-mapk-pathways-by-scopoletin-reduce-the-inflammation-caused-by-carrageenan-in-the-mouse-model-of-pleurisy
#17
Marcus Vinicius Pereira Dos Santos Nascimento, Fábio Arruda-Silva, Ana Beatriz Gobbo Luz, Bruna Baratto, Dalila Venzke, Beatriz Garcia Mendes, Tânia Silvia Fröde, Moacir Geraldo Pizzolatti, Eduardo Monguilhott Dalmarco
Natural products have long been used worldwide as therapeutic agents, but it is only recently, in response to the new challenges posed by global population aging, that interest in research into potentially therapeutic natural products has reemerged. In this context, coumarins, chemical compounds found in plants that have known anti-inflammatory activity, are promising candidates for the development of new drugs. In this study we test the effect of scopoletin, a coumarin found in several plant species, on carrageenan-induced inflammation in the mouse model of pleurisy...
October 2016: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/27324722/3-formylchromone-inhibits-proliferation-and-induces-apoptosis-of-multiple-myeloma-cells-by-abrogating-stat3-signaling-through-the-induction-of-pias3
#18
Jeong-Hyeon Ko, Seung Ho Baek, Dongwoo Nam, Won-Seok Chung, Seok-Geun Lee, Junhee Lee, Woong Mo Yang, Jae-Young Um, Kwang Seok Ahn
Constitutive activation of signal transducer and activator of transcription 3 (STAT3) is frequently observed and closely linked with proliferation, survival, metastasis and angiogenesis of various cancer cells, and thus its inhibition can be considered a potential therapeutic strategy. We found that 3-formylchromone (3FC) inhibited both constitutive and inducible STAT3 activation in multiple myeloma (MM) cells. Besides the inhibition of STAT3 phosphorylation, 3FC also abrogated constitutive activity and nuclear translocation of STAT3...
October 2016: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/27315229/cucurbita-moschata-duch-and-its-active-component-%C3%AE-carotene-effectively-promote-the-immune-responses-through-the-activation-of-splenocytes-and-macrophages
#19
Hee-Yun Kim, Sun-Young Nam, Shi-Young Yang, Hyung-Min Kim, Hyun-Ja Jeong
Cucurbita moschata Duch. has long been used for traditional health food in many countries. However, to enhance the immune system of Cucurbita moschata Duch. and its major component, β-carotene is not clear. Here, we determined the immune enhancement effect of Cucurbita moschata Duch. and β-carotene in mouse splenocytes and RAW 264.7 macrophage cell line. We prepared baked Cucurbita moschata Duch. (Sweetme Sweet Pumpkin(TM), SSP) and steamed Cucurbita moschata Duch. (SC). Splenocytes isolated from the spleen of BALB/c mice were treated with SSP, SC, and β-carotene for 24 h...
October 2016: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/27315014/norisoboldine-an-alkaloid-from-radix-linderae-inhibits-nfat-activation-and-attenuates-2-4-dinitrofluorobenzene-induced-dermatitis-in-mice
#20
Shuang Gao, Wencai Li, Guochao Lin, Guangrong Liu, Wenjuan Deng, Chuntao Zhai, Chunliang Bian, Gaiying He, Zhenlin Hu
CONTEXT: The nuclear factor of activated T-cells (NFAT) is a family of transcription factors, essential for T-cell activation. Norisoboldine (NOR), an isoquinoline alkaloid from Radix linderae, has been demonstrated to possess anti-inflammatory activity. OBJECTIVE: This study examines NOR's effect on NFAT activation and its therapeutic potential for atopic dermatitis (AD). MATERIALS AND METHODS: The transcriptional activity of NFAT was examined with luciferase reporter assay, using K562-luc cells, stimulated with 20 ng/mL PMA plus 1 μM ionomycin...
October 2016: Immunopharmacology and Immunotoxicology
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