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https://www.readbyqxmd.com/read/28646664/wogonin-attenuates-inflammation-by-activating-ppar-%C3%AE-in-alcoholic-liver-disease
#1
Hai-Di Li, Xin Chen, Yang Yang, Hui-Min Huang, Ling Zhang, Xin Zhang, Lei Zhang, Cheng Huang, Xiao-Ming Meng, Jun Li
Alcoholic liver disease (ALD) is one of the predominant causes of liver-related morbidity and mortality worldwide. However, effective therapy for ALD is still lacking. Wogonin, a major flavonoid compound, is found in Scutellaria baicalensis Georgi. Accumulating studies have revealed that wogonin possesses anti-inflammatory and anti-tumour activities in various models. However, the hepatoprotective activity of wogonin in ALD is still obscure. In this study, we found that wogonin significantly attenuated inflammatory response in EtOH-fed mice, and reduced the expression of inflammatory cytokines such as TNF-α and IL-6 in EtOH-induced RAW264...
June 21, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28646630/characteristics-of-systemic-inflammation-in-hepatitis-b-precipitated-aclf-differentiate-it-from-no-aclf
#2
Wei Wu, Huadong Yan, Hong Zhao, Wenjie Sun, Qiao Yang, Jifang Sheng, Yu Shi
BACKGROUND AND AIMS: Patients with severe exacerbation of chronic hepatitis B (SE-CHB) are at risk of developing acute-on-chronic liver failure (ACLF). Systemic inflammation (SI) is a major driver of ACLF. The aim of this study was to identify characteristics of SI in hepatitis B-precipitated-ACLF (HB-ACLF), which may be distinct from No-ACLF patients with SE-CHB. METHODS: Two cohorts of patients with SE-CHB were enrolled in two tertiary hospitals. The associations between circulating leukocyte counts/subsets and ACLF progression and prognoses were analysed in Cohort A...
June 24, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28646616/curcumin-alleviates-macrophage-activation-and-lung-inflammation-induced-by-influenza-virus-infection-through-inhibiting-the-nf-%C3%AE%C2%BAb-signaling-pathway
#3
Yiming Xu, Ling Liu
BACKGROUND: Influenza A viruses (IAV) result in severe public health problems with worldwide each year. Over-response of immune system to IAV infection leads to complications, and ultimately causing morbidity and mortality. OBJECTIVE: Curcumin has been reported to have anti-inflammatory ability. However, its molecular mechanism in immune responses remains unclear. METHODS: We detected the pro-inflammatory cytokine secretion and nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) related protein expression in human macrophages or mice infected by IAV with or without curcumin treatment...
June 24, 2017: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/28646573/interferon-%C3%AE-regulates-dendritic-cell-activation-and-migration-in-experimental-autoimmune-encephalomyelitis
#4
Leesa M Pennell, Eleanor N Fish
CD11c+ dendritic cells (DCs) exert a critical role as antigen-presenting cells in regulating pathogenic T cells in multiple sclerosis (MS). To determine whether the therapeutic benefit of interferon (IFN)-β treatment for MS is in part influenced by IFN regulation of DC function, we examined the immunophenotype of DCs derived from IFN-β(+/+) and IFN-β(-/-) mice using a myelin oligodendrocyte glycoprotein (MOG) peptide-induced mouse model of MS, experimental autoimmune encephalomyelitis (EAE). Our earlier work identified that IFN-β(-/-) mice exhibit earlier onset and more rapid progression of neurologic impairment compared with IFN-β(+/+) mice...
June 24, 2017: Immunology
https://www.readbyqxmd.com/read/28646491/sickle-cells-produce-functional-immune-modulators-and-cytotoxics
#5
Chiao-Wang Sun, Li-Chen Wu, Peter L Knopick, David S Bradley, Tim Townes, David S Terman
Sickle erythrocytes' (SSRBCs) unique physical adaptation to hypoxic conditions renders them able to home to hypoxic tumor niches in vivo, shut down tumor blood flow and induce tumoricidal responses. SSRBCs are also useful vehicles for transport of encapsulated drugs and oncolytic virus into hypoxic tumors with enhanced anti-tumor effects. In search of additional modes for arming sickle cells with cytotoxics, we turned to a lentiviral β-globin vector with optimized Locus Control Region/β-globin coding region/promoter/enhancers...
June 24, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28646427/tanshinone-iia-attenuates-atherosclerosis-in-apolipoprotein-e-knockout-mice-infected-with-porphyromonas-gingivalis
#6
Yan Xuan, Yue Gao, Hao Huang, Xiaoxuan Wang, Yu Cai, Qing Xian Luan
Tanshinone IIA (TSA), a pharmacologically active component isolated from Danshen, may prevent cardiovascular diseases due to its anti-inflammatory, anti-oxidative, and anti-adipogenic effects. Porphyromonas gingivalis, a major periodontal pathogen, may contribute to the progression of atherosclerosis. Here, we studied the effects of TSA on atherosclerosis in ApoE(-/-) mice with P. gingivalis infection. Eight-week-old ApoE(-/-) mice were randomized to (a) phosphate-buffered saline (PBS), (b) P. gingivalis, and (c) P...
June 23, 2017: Inflammation
https://www.readbyqxmd.com/read/28646409/neuroprotective-effects-of-g-csf-administration-in-microglia-mediated-reactive-t-cell-activation-in-vitro
#7
Wei Peng
G-CSF is a growth factor that has known neuroprotective effects in a variety of experimental brain injury models. As both antigen-presenting microglia and reactive T cells are key components in the development and progression of EAE, the aim of this study is to investigate the neuroprotective effects of recombinant human G-CSF, as administered in microglia-mediated reactive T cell assay in vitro. Our results indicate that G-CSF treatment has no apparent effect for the resting un-activated microglia. G-CSF pre-protection of microglia increased protective cytokine IL-4 production and effectively inhibited the productions of NO and other inflammatory mediators (IFN-γ, TNF-α, IL-1β, IL-17, and chemokine MCP-1) after LPS stimulation...
June 23, 2017: Immunologic Research
https://www.readbyqxmd.com/read/28646302/t-regulatory-cells-exhibit-a-biphasic-response-to-prolonged-endurance-exercise-in-humans
#8
Tom Clifford, Matthew J Wood, Philip Stocks, Glyn Howatson, Emma J Stevenson, Catharien M U Hilkens
PURPOSE: T-regulatory cells (Tregs) are a sub-population of lymphocytes that act to suppress aberrant immune responses. We investigated changes in the numbers of naïve and terminally differentiated Tregs in the peripheral blood to establish their role in the immuno-suppressive response to prolonged exercise. METHODS: Blood was drawn from seventeen experienced runners (age 40 ± 12 years; height 1.75 ± 0.08 m; mass 71.4 ± 10.8 kg) before, ~1 h after (POST-1h), and on the day following the marathon (POST-1d)...
June 23, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28646234/electroporation-as-a-vaccine-delivery-system-and-a-natural-adjuvant-to-intradermal-administration-of-plasmid-dna-in-macaques
#9
Biliana Todorova, Lucille Adam, Slobodan Culina, Raphaël Boisgard, Frédéric Martinon, Antonio Cosma, Mart Ustav, Thierry Kortulewski, Roger Le Grand, Catherine Chapon
In vivo electroporation (EP) is used to enhance the uptake of nucleic acids and its association with DNA vaccination greatly stimulates immune responses to vaccine antigens delivered through the skin. However, the effect of EP on cutaneous cell behavior, the dynamics of immune cell recruitment and local inflammatory factors, have not been fully described. Here, we show that intradermal DNA vaccination combined with EP extends antigen expression to the epidermis and the subcutaneous skin muscle in non-human primates...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28646196/nucleoside-reverse-transcriptase-inhibitors-nrtis-induce-proinflammatory-cytokines-in-the-cns-via-wnt5a-signaling
#10
Ting Wu, Juan Zhang, Mingxing Geng, Shao-Jun Tang, Wenping Zhang, Jianhong Shu
HAART is very effective in suppressing HIV-1 replication in patients. However, patients staying on long-term HAART still develop various HIV-associated neurological disorders, even when the viral load is low. The underlying pathogenic mechanisms are largely unknown. Emerging evidence implicated that persistent neuroinflammation plays an important role in NeuroAIDS. Although residual virus or viral proteins are commonly thought as the causal factors, we are interested in the alternative possibility that HAART critically contributes to the neuroinflammation in the central nervous system (CNS)...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28646187/microrna-148-as-a-negative-regulator-of-the-common-tlr-adaptor-mediates-inflammatory-response-in-teleost-fish
#11
Qing Chu, Yunhang Gao, Dekun Bi, Tianjun Xu
MicroRNAs are small endogenous noncoding RNAs implicating in the regulation of diverse biological processes, including proliferation, differentiation, cancer, apoptosis, and viral infections. MicroRNAs regulate gene expression by either mRNA degradation or inhibition of protein translation. Although microRNAs have emerged as important controller involved in regulation of inflammatory response, the microRNA-mediated regulatory mechanism remains less clear in teleost. Here, we report that miR-148 targets MyD88 and down-regulates its expression by inhibition protein translation rather than degradation mRNA in miiuy croaker...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28646156/mahanine-exerts-in-vitro-and-in-vivo-antileishmanial-activity-by-modulation-of-redox-homeostasis
#12
Saptarshi Roy, Devawati Dutta, Eswara M Satyavarapu, Pawan K Yadav, Chhabinath Mandal, Susanta Kar, Chitra Mandal
Earlier we have established a carbazole alkaloid (mahanine) isolated from an Indian edible medicinal plant as an anticancer agent with minimal effect on normal cells. Here we report for the first time that mahanine-treated drug resistant and sensitive virulent Leishmania donovani promastigotes underwent apoptosis through phosphatidylserine externalization, DNA fragmentation and cell cycle arrest. An early induction of reactive oxygen species (ROS) suggests that the mahanine-induced apoptosis was mediated by oxidative stress...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28646138/uniting-the-neuro-developmental-and-immunological-hypotheses-neuregulin-1-receptor-erbb-and-toll-like-receptor-activation-in-first-episode-schizophrenia
#13
Szabolcs Kéri, Csilla Szabó, Oguz Kelemen
Current pathophysiological models of schizophrenia focus on neurodevelopmental and immunological mechanisms. We investigated a molecular pathway traditionally linked to the neurodevelopmental hypothesis (neuregulin 1 - ErbB), and pathogen-associated pattern recognition receptors associated with the immune hypothesis (Toll-like receptors, TLRs). We recruited 42 first-episode, drug-naïve patients with schizophrenia and 42 matched healthy control subjects. In monocytes TLR4/TLR5 and ErbB expressions were measured with flow-cytometry...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28646109/bone-morphogenetic-protein-bmp-9-and-bmp10-enhance-tumor-necrosis-factor-%C3%AE-induced-monocyte-recruitment-to-the-vascular-endothelium-mainly-via-activin-receptor-like-kinase-2
#14
Claudia-Gabriela Mitrofan, Sarah L Appleby, Gerard B Nash, Ziad Mallat, Edwin R Chilvers, Paul D Upton, Nicholas W Morrell
Bone morphogenetic proteins 9 and 10 (BMP9/BMP10) are circulating cytokines with important roles in endothelial homeostasis. The aim of this study was to investigate the roles of BMP9 and BMP10 in mediating monocyte-endothelial interactions using an in vitro flow adhesion assay. Herein, we report that while BMP9/BMP10 alone had no effect on monocyte recruitment, at higher concentrations both cytokines synergised with Tumor necrosis factor-α (TNFα) to increase recruitment to the vascular endothelium. The BMP9/BMP10-mediated increase in monocyte recruitment in the presence of TNFα was associated with upregulated expression levels of E-selectin, VCAM-1 and ICAM-1 on endothelial cells...
June 23, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28645823/recombinant-human-soluble-thrombomodulin-prevents-acute-lung-injury-in-a-rat-cardiopulmonary-bypass-model
#15
Shingo Hirao, Kenji Minakata, Hidetoshi Masumoto, Kazuhiro Yamazaki, Tadashi Ikeda, Kenji Minatoya, Ryuzo Sakata
BACKGROUND: Cardiopulmonary bypass (CPB) may induce systemic inflammatory responses causing acute lung injury. Recombinant human soluble thrombomodulin (rTM) is reported to attenuate the secretion of inflammatory cytokines and the high-mobility group box 1 (HMGB1) protein, which is critical in controlling systemic inflammation and apoptosis. We investigated the protective effects of rTM on CPB-induced lung injury in a rat model. METHODS: Eighteen male Sprague-Dawley rats were divided into 3 groups: sham, control (CPB alone), and rTM (CPB + rTM)...
May 30, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28645771/dectin-1-expression-by-macrophages-and-related-antifungal-mechanisms-in-a-murine-model-of-sporothrix-schenckii-sensu-stricto-systemic-infection
#16
Juliana Aparecida Jellmayer, Lucas Souza Ferreira, Francine Alessandra Manente, Amanda Costa Gonçalves, Marisa Campos Polesi, Alexander Batista-Duharte, Iracilda Zeppone Carlos
The available information about the role of Dectin-1 in sporotrichosis is scarce. Hence, we aimed to assess Dectin-1 expression by macrophages and the activation of some related antifungal mechanisms during the Sporothrix schenckii sensu stricto infection as a first attempt to elucidate the role of this receptor in sporotrichosis. Balb/c mice were intraperitoneally infected with S. schenckii sensu stricto yeast ATCC 16345 and euthanized on days 5, 10 and 15 post-infection, when the following parameters were evaluated: fungal burden in spleen, Dectin-1 expression and nitric oxide (NO) production by peritoneal macrophages, as well as IL-1β, TNF-α and IL-10 ex vivo secretion by these same cells...
June 20, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28645612/il-1%C3%AE-induced-methylation-of-the-estrogen-receptor-er%C3%AE-gene-correlates-with-emt-and-chemoresistance-in-breast-cancer-cells
#17
Aura M Jiménez-Garduño, Mónica G Mendoza-Rodríguez, Daniel Urrutia-Cabrera, María C Domínguez-Robles, Eloy A Pérez-Yépez, Jorge Tonatiuh Ayala-Sumuano, Isaura Meza
Inflammation has been recently acknowledged as a key participant in the physiopathology of oncogenesis and tumor progression. The inflammatory cytokine IL-1β has been reported to induce the expression of markers associated with malignancy in breast cancerous cells through Epithelial-Mesenchymal Transition (EMT). Aggressive breast cancer tumors classified as Triple Negative do not respond to hormonal treatment because they lack three crucial receptors, one of which is the estrogen receptor alpha (ERα). Expression of ERα is then considered a good prognostic marker for tamoxifen treatment of this type of cancer, as the binding of this drug to the receptor blocks the transcriptional activity of the latter...
June 20, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28645526/injury-induced-gp130-cytokine-signaling-in-peripheral-ganglia-is-reduced-in-diabetes-mellitus
#18
Jon P Niemi, Angela R Filous, Alicia DeFrancesco, Jane A Lindborg, Nisha A Malhotra, Gina N Wilson, Bowen Zhou, Samuel D Crish, Richard E Zigmond
Neuropathy is a major diabetic complication. While the mechanism of this neuropathy is not well-understood, it is believed to result in part from deficient nerve regeneration. Work from our laboratory established that gp130 family of cytokines are induced in animals after axonal injury and are involved in the induction of regeneration-associated genes (RAGs) and in the conditioning lesion response. Here, we examine whether a reduction of cytokine signaling occurs in diabetes. Streptozotocin (STZ) was used to destroy pancreatic β cells, leading to chronic hyperglycemia...
June 20, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28645524/orientin-attenuates-cerebral-ischemia-reperfusion-injury-in-rat-model-through-the-aqp-4-and-tlr4-nf-%C3%AE%C2%BAb-tnf-%C3%AE-signaling-pathway
#19
Xiaoru Wang, Fang An, Shulin Wang, Zexin An, Shuhua Wang
BACKGROUND: Orientin has been reported to have extensive pharmaceutical effects of antioxidant, anti-inflammatory, antithrombosis, antiapoptosis, and so on. In the present study, we tried to investigate the protective effects of orientin on cerebral ischemia-reperfusion (I/R) injury and explored the possible mechanisms. METHODS: Middle cerebral artery occlusion rat model was established and then treated with low, middle, and high concentrations of orientin, respectively, with edaravone as a positive control...
June 20, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28645489/effects-of-hypnotic-bromovalerylurea-on-microglial-bv2-cells
#20
Shun Kawasaki, Naoki Abe, Fumito Ohtake, Afsana Islam, Mohammed Emamussalehin Choudhury, Ryo Utsunomiya, Satoshi Kikuchi, Tasuku Nishihara, Jun Kuwabara, Hajime Yano, Yuji Watanabe, Mayuki Aibiki, Toshihiro Yorozuya, Junya Tanaka
An old sedative and hypnotic bromovalerylurea (BU) has anti-inflammatory effects. BU suppressed nitric oxide (NO) release and proinflammatory cytokine expression by lipopolysaccharide (LPS)-treated BV2 cells, a murine microglial cell line. However, BU did not inhibit LPS-induced nuclear translocation of nuclear factor-κB and subsequent transcription. BU suppressed LPS-induced phosphorylation of signal transducer and activator of transcription 1 (STAT1) and expression of interferon regulatory factor 1 (IRF1)...
June 8, 2017: Journal of Pharmacological Sciences
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