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Immunopharmacology and Immunotoxicology

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https://www.readbyqxmd.com/read/28162057/pramipexole-reduces-inflammation-in-the-experimental-animal-models-of-inflammation
#1
Heibatollah Sadeghi, Mohammad Parishani, Mehdi Akbartabar Touri, Mehdi Ghavamzadeh, Mehrzad Jafari Barmak, Vahid Zarezade, Hamdollah Delaviz, Hossein Sadeghi
Pramipexole is a dopamine (DA) agonist (D2 subfamily receptors) that widely use in the treatment of Parkinson's diseases. Some epidemiological and genetic studies propose a role of inflammation in the pathophysiology of Parkinson's disease. To our knowledge, there is no study regarding the anti-inflammatory activity of pramipexol. Therefore, the aim of the study was to investigate anti-inflammatory effect of pramipexol. Anti-inflammatory effects of pramipexole were studied in three well-characterized animal models of inflammation, including carrageenan- or formalin-induced paw inflammation in rats, and 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced ear edema in mice...
February 6, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28152640/murine-raw-264-7-cell-line-as-an-immune-target-are-we-missing-something
#2
Liza Merly, Sylvia L Smith
The popular murine macrophage cell line, RAW 264.7, is often used to initially screen natural products for bioactivity and to predict their potential effect in vivo or on primary cells. The cell line response is considered to reflect the potential human de novo response, and is used to evaluate the effective bioactivity of the product. Here, we compared the cytokine response of RAW 264.7 cells to shark cartilage (SC) with that of human leukocytes to determine whether the cell line response was a reliable predictor of the cytokine response one can expect from similarly stimulated human primary cells...
February 2, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28152630/anti-inflammatory-effects-of-physalin-e-from-physalis-angulata-on-lipopolysaccharide-stimulated-raw-264-7-cells-through-inhibition-of-nf-%C3%AE%C2%BAb-pathway
#3
Yan-Jun Yang, Lang Yi, Qing Wang, Bing-Bing Xie, Yan Dong, Cong-Wei Sha
Physalin E is a naturally occurring seco-steroid isolated from the stems and aerial parts of Physalis angulata L. (Solanaceae). This study was aimed to explore the anti-inflammatory effects of physalin E on RAW 264.7 mouse macrophages stimulated by lipopolysaccharide (LPS) and the potential underlying mechanisms. The results showed that physalin E significantly inhibited LPS-induced tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) expression and secretion in a dose-dependent manner. Unlike dexamethasone, these effects could not be blocked by miferstone (RU486)...
February 2, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28151031/modulation-by-bovine-lactoferrin-of-parameters-associated-with-the-iga-response-in-the-proximal-and-distal-small-intestine-of-balb-c-mice
#4
Marycarmen Godínez-Victoria, Teresita Rocío Cruz-Hernández, Humberto Reyna-Garfias, Reyna Elizabeth Barbosa-Cabrera, Maria Elisa Drago-Serrano, María Cristina Sánchez-Gómez, Rafael Campos-Rodríguez
BACKGROUND: Secretory IgA (SIgA) and the polymeric immunoglobulin receptor (pIgR) have a pivotal role in gut homeostasis. Bovine lactoferrin (bLf) has been shown to modulate intestinal immunity and endogenous corticosterone. Considering the regionalization of the intestinal immune response, the aim of this work was to compare the impact of bLf on the IgA response in the proximal versus distal small intestine under physiological conditions. METHODS: Groups of healthy male BALB/c mice were orally treated with one daily dose of bLf (50, 500, or 5000 μg) or untreated (control) for 7 d, and then sacrificed...
February 2, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28145788/preclinical-and-pharmacotoxicology-evaluation-of-%C3%AE-l-guluronic-acid-g2013-as-a-non-steroidal-anti-inflammatory-drug-with-immunomodulatory-property
#5
Sepideh Nazeri, Shahin Khadem Azarian, Mohammad Javad Fattahi, Reza Sedaghat, Farzaneh Tofighi Zavareh, Zahra Aghazadeh, Mohammad Abdollahi, Abbas Mirshafiey
CONTEXT: Therapeutic effects of α-l-guluronic acid with the greatest tolerability and efficacy (G2013) have been shown in experimental model of multiple sclerosis and other in vitro and in vivo examinations regarding α-l-guluronic acid; there are no toxicological researches on its safety although the pharmacological impacts have been recorded. OBJECTIVE: This study was designed to determine the acute and sub chronic toxicity of α-l-guluronic acid in healthy male and female BALB/c mice...
February 1, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28049380/evaluation-of-tlr9-expression-on-pbmcs-and-cpg-odn-tlr9-ligation-on-ifn-%C3%AE-production-in-sle-patients
#6
Sahar Mortezagholi, Zohreh Babaloo, Parisa Rahimzadeh, Haideh Namdari, Mojgan Ghaedi, Farhad Gharibdoost, Reza Mirzaei, Katayoon Bidad, Eisa Salehi
CONTEXT: Systemic lupus erythematosus (SLE) is a systemic autoimmune disease characterized by autoreactive antibodies. Recent findings revealed the importance of innate immune responses, especially Toll-like receptors (TLRs) in the pathogenesis of SLE. OBJECTIVE: In this study, the level of TLR9 expression on peripheral blood mononuclear cells (PBMCs) was analyzed. The levels of produced IFN-α were also measured in supernatant of PBMCs from SLE patients and healthy controls after stimulation with CpG ODN2216 which is a plasmocytoid dendritic cell (pDC)-specific TLR9 ligand...
January 3, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28004985/cyclophosphamide-enhances-anti-tumor-effects-of-a-fibroblast-activation-protein-%C3%AE-based-dna-vaccine-in-tumor-bearing-mice-with-murine-breast-carcinoma
#7
Qiu Xia, Fei Geng, Fang-Fang Zhang, Chen-Lu Liu, Ping Xu, Zhen-Zhen Lu, Yu Xie, Bo Sun, Hui Wu, Bin Yu, Wei Kong, Xiang-Hui Yu, Hai-Hong Zhang
Cyclophosphamide (CY) is a DNA alkylating agent, which is widely used with other chemotherapy drugs in the treatment of various types of cancer. It can be used not only as a chemotherapeutic but also as an immunomodulatory agent to inhibit IL-10 expression and T regulatory cells (Tregs). Fibroblast activation protein α (FAPα) is expressed in cancer-associated fibroblasts in the tumor microenvironment. Immunotherapy based on FAPα, as a tumor stromal antigen, typically induces specific immune response targeting the tumor microenvironment...
December 22, 2016: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28000518/artemisinin-inhibits-inflammatory-response-via-regulating-nf-%C3%AE%C2%BAb-and-mapk-signaling-pathways
#8
Ke Si Wang, Junbo Li, Zhe Wang, Chunliu Mi, Juan Ma, Lian Xun Piao, Guang Hua Xu, Xuezheng Li, Xuejun Jin
Artemisinin, isolated from the Chinese plant Artemisia annua, has been used for many years to treat different forms of malarial parasites. In this study, we explored the anti-inflammatory activity of artemisinin and the underlying mechanism of this action. We demonstrated that the anti-inflammatory effects of artemisinin in TPA-induced skin inflammation in mice. Then the artemisinin significantly inhibited the expression of NF-κB reporter gene induced by TNF-α in a dose-dependent manner. Artemisinin also inhibited TNF-α induced phosphorylation and degradation of IκBα, p65 nuclear translocation...
December 21, 2016: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/27908221/dasatinib-prevent-hepatic-fibrosis-induced-by-carbon-tetrachloride-ccl4-via-anti-inflammatory-and-antioxidant-mechanism
#9
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
#10
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/28211306/ex-vivo-all-trans-retinoic-acid-modulates-no-production-and-regulates-il-6-effect-during-rheumatoid-arthritis-a-study-in-algerian-patients
#11
Amina Arroul-Lammali, Fadia Rahal, Radia Chetouane, Zineb Djeraba, Oussama Medjeber, Aicha Ladjouze-Rezig, Chafia Touil-Boukoffa
Rheumatoid arthritis (RA) is a chronic autoimmune disease. The pathophysiology of RA implicates several mediators such as nitric oxide (NO) and cytokines such as interleukin-6 (IL-6), which is deeply involved in the main characteristics of RA. Furthermore, all-trans retinoic acid (ATRA) is an active vitamin A derivative well-known to have diverse immunomodulatory actions. In our study, we investigated first, the ex vivo immunomodulatory potential of ATRA on NO pathway by peripheral blood mononuclear cells (PBMCs) from Algerian RA patients...
April 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28211305/helicobacter-pylori-on-portal-hypertension-related-hepatic-encephalopathy
#12
Jannis Kountouras, Stergios A Polyzos, Panagiotis Katsinelos, Dimitri Tzivras, Marina Boziki, Emmanuel Gavalas, Christos Zavos, Elizabeth Vardaka, Iordanis Romiopoulos, Sotiris Anastasiadis, Elena Tsiaousi, Constantinos Kountouras, Georgia Xiromerisiou, Georgia Deretzi
No abstract text is available yet for this article.
April 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28211304/granisetron-and-carvedilol-can-protect-experimental-rats-againstadjuvant-induced-arthritis
#13
Yasmin Moustafa Ahmed, Basim Anwar Shehata Messiha, Ali Ahmed Abo-Saif
CONTEXT: Rheumatoid arthritis (RA), a disabling autoimmune disorder of the joints as well as other organs, affects about 1% of population. Unfortunately, all current treatments of RA cause severe gastrointestinal, renal and other complications. OBJECTIVE: We aimed to evaluate the possible antiarthritic effects of a serotonin 5-HT3 receptor blocker, granisetron, and a nonselective adrenergic receptor blocker, carvedilol, on complete Freund's adjuvant-induced RA in adult female albino rats...
April 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28071184/letter-from-the-editor
#14
Anders Elm Pedersen
No abstract text is available yet for this article.
February 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28071183/5-aminosalicylic-acid-inhibits-inflammatory-responses-by-suppressing-jnk-and-p38-activity-in-murine-macrophages
#15
Tingli Qu, Erbing Wang, Baofen Jin, Weiping Li, Ruiling Liu, Zheng-Bao Zhao
CONTEXT: 5-Aminosalicylic acid (5-ASA), as an anti-inflammatory drug, has been extensively used for the treatment of mild to moderate active ulcerative colitis (UC), but the possible mechanisms of action remain unclear. OBJECTIVE: To investigate the effects of 5-ASA on the production of inflammatory mediators by murine macrophages stimulated with lipopolysaccharide (LPS), and determine the underlying pharmacological mechanism of action. MATERIALS AND METHODS: The levels of nitric oxide (NO) and interleukin-6 (IL-6) were measured by Varioskan Flash and IL-6 Enzyme-Linked Immunosorbent Assay sets...
February 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/27819568/the-toxicity-of-continuous-long-term-low-dose-formaldehyde-inhalation-in-mice
#16
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/27788611/helicobacter-pylori-liver-cirrhosis-and-portal-hypertension-an-updated-appraisal
#17
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
#18
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
#19
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
#20
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
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