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Immunopharmacology and Immunotoxicology

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https://www.readbyqxmd.com/read/28303727/enhancement-of-nk-cells-proliferation-and-function-by-shikonin
#1
Yan Li, Hailin Lu, Yongchun Gu, Zhiqiang Ning, Tinghua Cao, Chao Chen, Chengru Hu, Min Tao
CONTEXT: Shikonin is a kind of naphthoquinone compound found mainly in Lithospermum erythrorhizon Sieb,et Zucc. Previous studies have shown that Shikonin has anti-tumor, anti-inflammatory and extensive pharmacological effects. According to new studies, Shikonin could also modulate the immune system function, but the effect to NK (nature killer) cells is yet unknown. OBJECTIVE: To investigate the effect and mechanism of Shikonin on NK cells proliferation and cytotoxicity to colon cancer cell line (Caco-2)...
March 17, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28290732/cycloastragenol-mediates-activation-and-proliferation-suppression-in-concanavalin-a-induced-mouse-lymphocyte-pan-activation-model
#2
Chenghong Sun, Mingmin Jiang, Li Zhang, Jian Yang, Guimin Zhang, Bingyuan Du, Yushan Ren, Xin Li, Jingchun Yao
CONTEXT: Cycloastragenol (CAG) is a molecule isolated from various species in the genus Astragalus. Although the regulatory activity of Astragalus on immune system has been investigated, the effect of CAG on activated lymphocytes is poorly understood. OBJECTIVE: We aimed to biologically address the possible anti-inflammation potential of CAG on concanavalin A (Con A)-mediated mouse lymphocyte pan-activation model. MATERIALS AND METHODS: Mouse lymphocytes were obtained from spleens and subjected to Con A for 24 h...
March 14, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28290727/the-toxic-effects-of-benzo-a-pyrene-on-activated-mouse-t-cells-in-vitro
#3
Shuang Guan, Yixuan Huang, Zhe Feng, Linli Xu, Yingli Jin, Jing Lu
Benzo[a]pyrene (B[a]P) is a polycyclic aromatic hydrocarbon contaminant that is widely present in environmental sources, including food. This study aims to clarify the effects of B[a]P toxicity on activated mouse T cells in vitro. Our results show that B[a]P markedly inhibited Concanavalin A (ConA)-induced T lymphocyte proliferation and suppressed the production of the cytokines Interferon (IFN)-γ, Interleukin (IL)-2 and IL-4. Western blot and protein-DNA interaction assays were used to study how B[a]P affects signal transduction...
March 14, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28276734/in-vitro-and-in-vivo-inhibitory-effects-of-6-hydroxyrubiadin-on-lipopolysaccharide-induced-inflammation
#4
Yanting Wu, Fujun Jin, Yiliang Wang, Feng Li, Zhe Ren, Yifei Wang
Inflammation is a defensive response against a multitude of harmful stimuli and stress conditions such as tissue injury, and is one of the most common pathological processes of human diseases. 6-Hydroxyrubiadin, an anthraquinone isolated from Rubia cordifolia L., exhibits several bioactive properties. The aim of this study was to evaluate whether 6-hydroxyrubiadin can reduce the production of pro-inflammatory cytokines and ameliorate acute lung injury (ALI) in a mouse model. In this study, we demonstrated that 6-hydroxyrubiadin suppressed lipopolysaccharide (LPS)-induced nuclear factor-kappa B activation as well as the phosphorylation of c-Jun N-terminal kinase in RAW 264...
March 3, 2017: 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
#5
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
#6
LETTER
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
#7
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/28162057/pramipexole-reduces-inflammation-in-the-experimental-animal-models-of-inflammation
#8
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...
April 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28152640/murine-raw-264-7-cell-line-as-an-immune-target-are-we-missing-something
#9
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...
April 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
#10
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)...
April 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
#11
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...
April 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
#12
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...
April 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28071184/letter-from-the-editor
#13
EDITORIAL
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
#14
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/28049380/evaluation-of-tlr9-expression-on-pbmcs-and-cpg-odn-tlr9-ligation-on-ifn-%C3%AE-production-in-sle-patients
#15
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...
February 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
#16
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...
February 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28000518/artemisinin-inhibits-inflammatory-response-via-regulating-nf-%C3%AE%C2%BAb-and-mapk-signaling-pathways
#17
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...
February 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/27908221/dasatinib-prevent-hepatic-fibrosis-induced-by-carbon-tetrachloride-ccl4-via-anti-inflammatory-and-antioxidant-mechanism
#18
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)...
February 2017: 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
#19
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...
February 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/27819568/the-toxicity-of-continuous-long-term-low-dose-formaldehyde-inhalation-in-mice
#20
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
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