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Resolution inflammation

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https://www.readbyqxmd.com/read/28218740/maresin1-stimulates-alveolar-fluid-clearance-through-the-alveolar-epithelial-sodium-channel-na-k-atpase-via-the-alx-pi3k-nedd4-2-pathway
#1
Jun-Li Zhang, Xiao-Jun Zhuo, Jing Lin, Ling-Chun Luo, Wei-Yang Ying, Xiang Xie, Hua-Wei Zhang, Jing-Xiang Yang, Dan Li, Fang Gao Smith, Sheng-Wei Jin
Maresin1 (MaR1) is a new docosahexaenoic acid-derived pro-resolving agent that promotes the resolution of inflammation. In this study, we sought to investigate the effect and underlining mechanisms of MaR1 in modulating alveolar fluid clearance (AFC) on LPS-induced acute lung injury. MaR1 was injected intravenously or administered by instillation (200 ng/kg) 8 h after LPS (14 mg/kg) administration and AFC was measured in live rats. In primary rat alveolar type II epithelial cells, MaR1 (100 nM) was added to the culture medium with lipopolysaccharide for 6 h...
February 20, 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/28213207/epimetabolites-discovering-metabolism-beyond-building-and-burning
#2
REVIEW
Megan R Showalter, Tomas Cajka, Oliver Fiehn
Enzymatic transformations of primary, canonical metabolites generate active biomolecules that regulate important cellular and physiological processes. Roles include regulation of histone demethylation in epigenetics, inflammation in tissue injury, insulin sensitivity, cancer cell invasion, stem cell pluripotency status, inhibition of nitric oxide signaling and others. Such modified compounds, defined as epimetabolites, have functions distinct from classic hormones as well as removed from generic anabolism and catabolism...
February 14, 2017: Current Opinion in Chemical Biology
https://www.readbyqxmd.com/read/28213094/aspirin-triggered-resolvin-d1-modified-materials-promote-the-accumulation-of-pro-regenerative-immune-cell-subsets-and-enhance-vascular-remodeling
#3
Mary Caitlin P Sok, Maxianne C Tria, Claire E Olingy, Cheryl L San Emeterio, Edward A Botchwey
: Many goals in tissue engineering rely on modulating cellular localization and polarization of cell signaling, including the inhibition of inflammatory infiltrate, facilitation of inflammatory cell egress, and clearance of apoptotic cells. Omega-3 polyunsaturated fatty acid-derived resolvins are gaining increasing recognition for their essential roles in inhibition of neutrophil invasion into inflamed tissue and promotion of macrophage phagocytosis of cellular debris as well as their egress to the lymphatics...
February 14, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28212548/branched-chain-amino-acids-prevent-hepatic-fibrosis-and-development-of-hepatocellular-carcinoma-in-a-non-alcoholic-steatohepatitis-mouse-model
#4
Kai Takegoshi, Masao Honda, Hikari Okada, Riuta Takabatake, Naoto Matsuzawa-Nagata, Jean S Campbell, Masashi Nishikawa, Tetsuro Shimakami, Takayoshi Shirasaki, Yoshio Sakai, Taro Yamashita, Toshinari Takamura, Takuji Tanaka, Shuichi Kaneko
Oral supplementation with branched-chain amino acids (BCAA; leucine, isoleucine, and valine) in patients with liver cirrhosis potentially suppresses the incidence of hepatocellular carcinoma (HCC) and improves event-free survival. However, the detailed mechanisms of BCAA action have not been fully elucidated. BCAA were administered to atherogenic and high-fat (Ath+HF) diet-induced nonalcoholic steatohepatitis (NASH) model mice. Liver histology, tumor incidence, and gene expression profiles were evaluated. Ath+HF diet mice developed hepatic tumors at a high frequency at 68 weeks...
February 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/28212523/redox-regulation-in-metabolic-programming-and-inflammation
#5
REVIEW
Helen R Griffiths, Dan Gao, Chathyan Pararasa
Energy metabolism and redox state are intrinsically linked. In order to mount an adequate immune response, cells must have an adequate and rapidly available energy resource to migrate to the inflammatory site, to generate reactive oxygen species using NADPH as a cofactor and to engulf bacteria or damaged tissue. The first responder cells of the innate immune response, neutrophils, are largely dependent on glycolysis. Neutrophils are relatively short-lived, dying via apoptosis in the process of bacterial killing through production of hypochlorous acid and release of extracellular NETs...
February 12, 2017: Redox Biology
https://www.readbyqxmd.com/read/28210259/resolution-of-cancer-promoting-inflammation-a-new-approach-for-anticancer-therapy
#6
REVIEW
Qi Zhang, Bo Zhu, Yongsheng Li
Inflammation is a protective response that eliminates harmful stimuli and restores tissue homeostasis, whereas the failure to resolve inflammation leads to the development of malignancies. Immune cells in the tumor inflammatory microenvironment endow cancer cells with their specific hallmarks, including mutations, metabolic reprograming, angiogenesis, invasion, and metastasis. Targeting the inflammatory microenvironment with anti-inflammatory drugs (e.g., aspirin) or by enhancing antitumor immunity (e.g., chimeric antigen receptor T cell therapy) has been extensively investigated and has achieved promising results in many cancers...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28209602/a-novel-murine-model-of-esophageal-non-erosive-reflux-disease-nerd-from-inflammation-to-impairment-in-mucosal-integrity
#7
Renan O Silva, Francisco Fábio B Oliveira, Rudy D Bingana, Mailton O Arruda, Philip Woodland, Chung Lee, Miguel A Nobre E Souza, Pedro Marcos G Soares, Armenio A Santos, Daniel Sifrim, Marcellus H L P Souza
Non-erosive reflux disease (NERD) is a highly prevalent phenotype of the gastroesophageal reflux disease (GERD). In this study, we developed a novel murine model of NERD in mice with microscopic inflammation and impairment in the epithelial esophageal barrier. Female Swiss mice were subjected to the following surgical procedure: the transitional region between the forestomach and the glandular portion of the stomach was ligated, and a nontoxic ring was placed around the duodenum near the pylorus. The control group underwent sham surgery...
February 16, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/28208246/combined-proteome-and-eicosanoid-profiling-approach-for-revealing-implications-of-human-fibroblasts-in-chronic-inflammation
#8
Ammar Tahir, Andrea Bileck, Besnik Muqaku, Laura Niederstaetter, Dominique Kreutz, Rupert L Mayer, Denise Wolrab, Samuel M Meier, Astrid Slany, Christopher Gerner
During inflammation, proteins and lipids act in a concerted fashion, calling for combined analyses. Fibroblasts are powerful mediators of chronic inflammation. However, little is known about eicosanoid formation by human fibroblasts. The aim of this study was to analyze the formation of the most relevant inflammation mediators including proteins and lipids in human fibroblasts upon inflammatory stimulation and subsequent treatment with dexamethasone, a powerful antiphlogistic drug. Label-free quantification was applied for proteome profiling, while an in-house established data-dependent analysis method based on high-resolution mass spectrometry was applied for eicosadomics...
February 7, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28203681/small-but-mighty-platelets-as-central-effectors-of-host-defense
#9
Thomas J Stocker, Hellen Ishikawa-Ankerhold, Steffen Massberg, Christian Schulz
Platelets actively participate in inflammatory processes and drive diseases such as atherosclerosis, rheumatoid arthritis and cancer metastasis. However, platelets also have anti-inflammatory and anti-infective properties, which have received less consideration in the past. In this review, we highlight recent findings on the role of platelets in host defense and describe regulatory pathways modulating immune responses. Furthermore, we discuss the role of platelets for the resolution of inflammation and tissue repair...
February 16, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28195518/low-salivary-resolvin-d1-to-leukotriene-b4-ratio-predicts-carotid-intima-media-thickness-a-novel-biomarker-of-non-resolving-vascular-inflammation
#10
Silke Thul, Carlos Labat, Mohamed Temmar, Athanase Benetos, Magnus Bäck
Background Different lipid mediators may have opposing effects on vascular inflammation. For example, whereas leukotriene B4 (LTB4) transduces inflammation, resolvin D1 (RvD1), which is synthesized from the omega-3 fatty acid docosahexaenoic acid, facilitates the resolution of inflammation. The aim of this study was to determine the association of the RvD1/LTB4 ratio with subclinical atherosclerosis. Methods Saliva samples and ultrasound measurements of the intima media thickness of the carotid artery was obtained for 254 participants...
January 1, 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/28195343/galectin-9-diverse-roles-in-hepatic-immune-homeostasis-and-inflammation
#11
REVIEW
Lucy Golden-Mason, Hugo R Rosen
Glycan-binding proteins which include galectins are involved at all stages of immunity and inflammation, ranging from initiation through resolution. Galectin-9 (Gal-9) is highly expressed in the liver and has a wide variety of biological functions in innate and adaptive immunity that are instrumental in the maintenance of hepatic homeostasis. In the setting of viral hepatitis, increased expression of Gal-9 drives the expansion of regulatory T cells and contraction of effector T cells, thereby favoring viral persistence...
February 13, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28194434/corticosteroids-inhibit-anti-ige-activities-of-specialized-proresolving-mediators-on-b-cells-from-asthma-patients
#12
Nina Kim, Thomas H Thatcher, Patricia J Sime, Richard P Phipps
Specialized proresolving mediators (SPMs) promote the resolution of inflammation and exert beneficial effects in animal models of chronic inflammatory diseases, including asthma. Previously, we have shown that certain SPMs reduce IgE production in B cells from healthy individuals, which has a critical role in allergic asthma. Here, we investigated the effects of SPMs on B cell IgE production in asthma patients. Peripheral blood mononuclear cells from asthma patients were treated with 17-HDHA or RvD1, and IgE levels were measured...
February 9, 2017: JCI Insight
https://www.readbyqxmd.com/read/28193481/epigenetic-and-transcriptomic-regulation-of-lung-repair-during-recovery-from-influenza-infection
#13
Derek A Pociask, Keven M Robinson, Kong Chen, Kevin J McHugh, Michelle E Clay, Grace T Huang, Panayiotis V Benos, Yvonne M W Janssen-Heininger, Jay K Kolls, Vikas Anathy, John F Alcorn
Seasonal and pandemic influenza is a cause of morbidity and mortality worldwide. Most people infected with influenza virus display mild-to-moderate disease phenotypes and recover within a few weeks. Influenza is known to cause persistent alveolitis in animal models; however, little is known about the molecular pathways involved in this phenotype. We challenged C57BL/6 mice with influenza A/PR/8/34 and examined lung pathologic processes and inflammation, as well as transcriptomic and epigenetic changes at 21 to 60 days after infection...
February 9, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28192890/blocking-junctional-adhesion-molecule-c-promotes-the-recovery-of-cisplatin-induced-acute-kidney-injury
#14
Sun Chul Kim, Yoon Sook Ko, Hee Young Lee, Myung-Gyu Kim, Sang-Kyung Jo, Won-Yong Cho
Background/Aims: Recent findings have demonstrated the occurrence of neutrophil transendothelial migration in the reverse direction (reverse TEM) and that endothelial junctional adhesion molecule C (JAM-C) is a negative regulator of reverse TEM. In this study, we tested the effects of a JAM-C blocking antibody on the resolution of kidney injuries and inflammation in a mouse model of cisplatin-induced acute kidney injury (AKI). Methods: Cisplatin was administered via intraperitoneal injection...
February 15, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28191787/urinary-excretion-of-egf-and-mcp-1-in-children-with-vesicoureteral-reflux
#15
Valentina Pastore, Fabio Bartoli
PURPOSE: The aim of this study was to investigate the urinary concentration of epidermal growth factor (EGF) and monocyte chemotactic protein-1 (MCP-1) as reflux nephropathy (RN) biomarkers before and after endoscopic treatment of moderate to severe vesico-ureteral reflux (VUR). MATERIALS AND METHODS: A prospective study was carried out on 72 children with moderate to severe VUR. All patients underwent endoscopic treatment using Macroplastique ® or Deflux®. Vesico-ureteral reflux resolution was tested by post-operative voiding cystourethrography after 3 months and 2 years...
February 10, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28190533/the-roles-of-a-ribosomal-protein-s19-polymer-in-a-mouse-model-of-carrageenan-induced-acute-pleurisy
#16
Koji Yamanegi, Toru Kawakami, Naoko Yamada, Shunsuke Kumanishi, Hiroyuki Futani, Keiji Nakasho, Hiroshi Nishiura
C5-deficient mice usually present moderate neutrophil activation during the initiation phase of acute inflammation. Conversely, C5a receptor (C5aR)-deficient mice show unusually excessive activation of neutrophils. We identified the ribosomal protein S19 (RP S19) polymer, which is cross-linked at Lys122 and Gln137 by transglutaminases in apoptotic neutrophils, as a second C5aR ligand during the resolution phase of acute inflammation. The RP S19 polymer promotes apoptosis via the neutrophil C5aR and phagocytosis via the macrophage C5aR...
February 7, 2017: Immunobiology
https://www.readbyqxmd.com/read/28188247/neurodegeneration-enhances-the-development-of-arthritis
#17
Stefanie C Lang, Ulrike Harre, Pavitra Purohit, Katharina Dietel, Deborah Kienhöfer, Jonas Hahn, Wolfgang Baum, Martin Herrmann, Georg Schett, Dirk Mielenz
The prevalence of neurodegenerative disease and arthritis increases with age. Despite both processes being associated with immune activation and inflammation, little is known about the mechanistic interactions between neurodegenerative disease and arthritis. In this article, we show that tau-transgenic (tau-tg) mice that develop neurodegenerative disease characterized by deposition of tau tangles in the brain are highly susceptible to developing arthritis. Already at steady-state conditions, tau-tg mice exhibit peripheral immune activation that is manifested by higher numbers of granulocytes, plasmablasts, and inflammatory Ly6C(hi) CCR2(+) monocytes, as well as increased levels of proinflammatory cytokines, such as TNF-α and IL-17...
February 10, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28186708/mesenchymal-stem-cell-derived-extracellular-vesicles-as-mediators-of-anti-inflammatory-effects-endorsement-of-macrophage-polarization
#18
Claudia Lo Sicco, Daniele Reverberi, Carolina Balbi, Valentina Ulivi, Elisa Principi, Luisa Pascucci, Pamela Becherini, Maria Carla Bosco, Luigi Varesio, Chiara Franzin, Michela Pozzobon, Ranieri Cancedda, Roberta Tasso
Mesenchymal Stem Cells (MSCs) are effective therapeutic agents enhancing the repair of injured tissues mostly through their paracrine activity. Increasing evidences show that besides the secretion of soluble molecules, the release of extracellular vesicles (EVs) represents an alternative mechanism adopted by MSCs. Since macrophages are essential contributors toward the resolution of inflammation, which has emerged as a finely orchestrated process, the aim of the present study was to carry out a detailed characterization of EVs released by human adipose derived-MSCs to investigate their involvement as modulators of MSC anti-inflammatory effects inducing macrophage polarization...
January 31, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28186704/mesenchymal-stromal-cells-modulate-monocytes-trafficking-in-coxsackievirus-b3-induced-myocarditis
#19
Kapka Miteva, Kathleen Pappritz, Muhammad El-Shafeey, Fengquan Dong, Jochen Ringe, Carsten Tschöpe, Sophie Van Linthout
Mesenchymal stromal cell (MSC) application in Coxsackievirus B3 (CVB3)-induced myocarditis reduces myocardial inflammation and fibrosis, exerts prominent extra-cardiac immunomodulation, and improves heart function. Although the abovementioned findings demonstrate the benefit of MSC application, the mechanism of the MSC immunomodulatory effects leading to a final cardioprotective outcome in viral myocarditis remains poorly understood. Monocytes are known to be a trigger of myocardial tissue inflammation. The present study aims at investigating the direct effect of MSC on the mobilization and trafficking of monocytes to the heart in CVB3-induced myocarditis...
January 3, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28185713/effects-of-pitavastatin-on-lipid-rich-carotid-plaques-studied-using-high-resolution-magnetic-resonance-imaging
#20
Tao Feng, Xiaoxing Huang, Qundi Liang, Yun Liang, Yong Yuan, Li Feng, Wenjun Wu, Xuehong Xiao, Ying Han
PURPOSE: This study evaluates the effectiveness of pitavastatin in patients with atherosclerosis. METHODS: Sixty patients with atherosclerosis with lipid-rich carotid plaques were included and allocated into low-dose (2 mg/d) and high-dose (4 mg/d) pitavastatin groups with 48 weeks of treatment. Total cholesterol, LDL-C, HDL-C, triglycerides, apolipoprotein A1, apolipoprotein B, lipoprotein (a), and the inflammation-related factors interleukin 6, high-sensitivity C-reactive protein, and homocysteine were determined...
February 6, 2017: Clinical Therapeutics
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