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https://www.readbyqxmd.com/read/28817839/evaluating-the-effect-of-immune-cells-on-the-outcome-of-patients-with-mesothelioma
#1
Serena J Chee, Maria Lopez, Toby Mellows, Sharmali Gankande, Karwan A Moutasim, Scott Harris, James Clarke, Pandurangan Vijayanand, Gareth J Thomas, Christian H Ottensmeier
BACKGROUND: We systematically assessed the prognostic and predictive value of infiltrating adaptive and innate immune cells in a large cohort of patients with advanced mesothelioma. METHODS: A tissue microarray from 302 samples was constructed. Markers of adaptive immune response in T-cells (CD8(+), FOXP3(+), CD4(+), CD45RO(+), CD3(+)) and B-cells (CD20(+)), and of innate immune response; neutrophils (NP57(+)), natural killer cells (CD56(+)) and macrophages (CD68(+)) were evaluated...
August 17, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28817691/rac2-is-required-for-alternative-macrophage-activation-and-bleomycin-induced-pulmonary-fibrosis-a-macrophage-autonomous-phenotype
#2
Shweta Joshi, Alok R Singh, Simon S Wong, Muamera Zulcic, Min Jiang, Annie Pardo, Moises Selman, James S Hagood, Donald L Durden
Idiopathic pulmonary fibrosis (IPF) is a chronic lung disease characterized by cellular phenotype alterations and deposition of extracellular matrix proteins. The alternative activation of macrophages in the lungs has been associated as a major factor promoting pulmonary fibrosis, however the mechanisms underlying this phenomenon are poorly understood. In the present study, we have defined a molecular mechanism by which signals transmitted from the extracellular matrix via the α4β1 integrin lead to the activation of Rac2 which regulates alternative macrophage differentiation, a signaling axis within the pulmonary macrophage compartment required for bleomycin induced pulmonary fibrosis...
2017: PloS One
https://www.readbyqxmd.com/read/28817687/morphologic-phenotypic-and-transcriptomic-characterization-of-classically-and-alternatively-activated-canine-blood-derived-macrophages-in-vitro
#3
Franziska Heinrich, Annika Lehmbecker, Barbara B Raddatz, Kristel Kegler, Andrea Tipold, Veronika M Stein, Arno Kalkuhl, Ulrich Deschl, Wolfgang Baumgärtner, Reiner Ulrich, Ingo Spitzbarth
Macrophages are a heterogeneous cell population playing a pivotal role in tissue homeostasis and inflammation, and their phenotype strongly depends on the micromilieu. Despite its increasing importance as a translational animal model for human diseases, there is a considerable gap of knowledge with respect to macrophage polarization in dogs. The present study comprehensively investigated the morphologic, phenotypic, and transcriptomic characteristics of unstimulated (M0), M1- (GM-CSF, LPS, IFNγ-stimulated) and M2- (M-CSF, IL-4-stimulated)-polarized canine blood-derived macrophages in vitro...
2017: PloS One
https://www.readbyqxmd.com/read/28817583/dextran-sodium-sulfate-dss-induces-necrotizing-enterocolitis-like-lesions-in-neonatal-mice
#4
Marco Ginzel, Xiaoyan Feng, Joachim F Kuebler, Christian Klemann, Yi Yu, Reinhard von Wasielewski, Joon-Keun Park, Mathias W Hornef, Gertrud Vieten, Benno M Ure, Torsten Kaussen, Jan Hendrik Gosemann, Steffi Mayer, Anne Suttkus, Martin Lacher
BACKGROUND: Necrotizing enterocolitis (NEC) is an inflammatory bowel disease of preterm human newborns with yet unresolved etiology. An established neonatal murine model for NEC employs oral administration of lipopolysaccharides (LPS) combined with hypoxia/hypothermia. In adult mice, feeding dextran sodium sulfate (DSS) represents a well-established model for experimental inflammatory bowel disease. Here we investigated the effect of DSS administration on the neonatal murine intestine in comparison with the established NEC model...
2017: PloS One
https://www.readbyqxmd.com/read/28817438/alternatively-activated-macrophages-drive-browning-of-white-adipose-tissue-in-burns
#5
Abdikarim Abdullahi, Christopher Auger, Mile Stanojcic, David Patsouris, Alexandra Parousis, Slava Epelman, Marc G Jeschke
OBJECTIVE: The aim of this study was to uncover the mediators and mechanistic events that facilitate the browning of white adipose tissue (WAT) in response to burns. BACKGROUND: In hypermetabolic patients (eg, burns, cancer), the browning of WAT has presented substantial clinical challenges related to cachexia, atherosclerosis, and poor clinical outcomes. Browning of the adipose tissue has recently been found to induce and sustain hypermetabolism. Although browning appears central in trauma-, burn-, or cancer-induced hypermetabolic catabolism, the mediators are essentially unknown...
August 16, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28817210/varus-knee-osteoarthritis-elevated-synovial-cd15-counts-correlate-with-inferior-biomechanical-properties-of-lateral-compartment-cartilage
#6
Ulrich Koller, Wenzel Waldstein, Veit Krenn, Reinhard Windhager, Friedrich Boettner
The study analyzed the influence of synovitis on the histological and biomechanical properties of lateral-compartment cartilage. In a prospective cohort study, 84 patients (100 knees) with varus deformity of the knee were included. Osteochondral samples from the distal lateral femur underwent biomechanical and histologic analysis. Synovial tissue was sampled for histological (chronic synovitis score) and immunohistochemical evaluation of the degree of synovitis. CD15 (neutrophils), Ki-67 (dividing cells) and CD68 (macrophages) were tested in all synovial samples...
August 17, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28817118/altered-marginal-zone-and-innate-like-b-cells-in-aged-senescence-accelerated-samp8-mice-with-defective-igg1-responses
#7
Isabel Cortegano, Mercedes Rodríguez, Isabel Martín, Maria Carmen Prado, Carolina Ruíz, Rafael Hortigüela, Mario Alía, Marçal Vilar, Helena Mira, Eva Cano, Mercedes Domínguez, Belén de Andrés, María Luisa Gaspar
Aging has a strong impact on the activity of the immune system, enhancing susceptibility to pathogens and provoking a predominant pre-inflammatory status, whereas dampening responses to vaccines in humans and mice. Here, we demonstrate a loss of marginal zone B lymphocytes (MZ, CD19(+)CD45R(+)CD21(++)CD23(lo)) and a decrease of naive B cells (CD19(+)IgD(+)), whereas there is an enhancement of a CD19(+)CD45R(lo) innate-like B cell population (B1REL) and the so-called aged B cell compartment (ABC, CD45R(+)CD21(lo)CD23(lo)CD5(-)CD11b(-)) in aged senescence-accelerated (SAMP8) mice but not in aged senescence-resistant (SAMR1) mice...
August 17, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28817116/total-tanshinones-exhibits-anti-inflammatory-effects-through-blocking-tlr4-dimerization-via-the-myd88-pathway
#8
Hongwei Gao, Xin Liu, Wen Sun, Naixin Kang, Yanli Liu, Shilin Yang, Qiong-Ming Xu, Chunming Wang, Xiuping Chen
Tanshinones belong to a group of lipophilic constituents of Salvia miltiorrhiza Bunge (Danshen), which is widely used in traditional Chinese medicine. A deluge of studies demonstrated that tanshinones exert anti-inflammatory effects, but the underlying mechanisms remain unclear to date. This study investigated the anti-inflammatory effects and mechanisms of total tanshinones (TTN). TTN suppressed the expression of cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS) and the secretion of TNF-α, IL-6, and IL-1β in RAW264...
August 17, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28816564/cytotoxicity-screening-and-cytokine-profiling-of-nineteen-nanomaterials-enables-hazard-ranking-and-grouping-based-on-inflammogenic-potential
#9
Kunal Bhattacharya, Gözde Kiliç, Pedro M Costa, Bengt Fadeel
Engineered nanomaterials (ENMs) are being produced for an increasing number of applications. Therefore, it is important to assess and categorize ENMs on the basis of their hazard potential. The immune system is the foremost defence against foreign bodies. Here we performed cytokine profiling of a panel of nineteen representative ENMs procured from the Joint Research Centre (JRC) and commercial sources. Physicochemical characterization was performed using dynamic light scattering. The ENMs were all shown to be endotoxin content free...
August 17, 2017: Nanotoxicology
https://www.readbyqxmd.com/read/28816559/the-role-of-the-lectin-like-oxldl-receptor-lox-1-in-traffic-generated-air-pollution-exposure-mediated-alteration-of-the-brain-microvasculature-in-apolipoprotein-apo-e-knockout-mice
#10
JoAnn Lucero, Usa Suwannasual, Lindsay M Herbert, Jacob D McDonald, Amie K Lund
Recent studies have shown a strong correlation between air pollution-exposure and detrimental outcomes in the central nervous system, including alterations in blood brain barrier (BBB) integrity, neuroinflammation, and neurodegeneration. However, the mechanisms mediating these pathologies have not yet been fully elucidated. We have previously reported that exposure to traffic-generated air pollution results in increased circulating oxidized low-density lipoprotein (oxLDL), associated with alterations in BBB integrity, in atherosclerotic Apolipoprotein E null (ApoE(-/-)) mice...
August 17, 2017: Inhalation Toxicology
https://www.readbyqxmd.com/read/28816372/in-vitro-antitubercular-activity-of-3-deoxysappanchalcone-isolated-from-the-heartwood-of-caesalpinia-sappan-linn
#11
Hoonhee Seo, Sukyung Kim, Hafij Al Mahmud, Md Imtiazul Islam, Kung-Woo Nam, Byung-Eui Lee, Hanna Lee, Myoung-Lae Cho, Heung-Mook Shin, Ho-Yeon Song
Responsible for nearly 1.5 million deaths every year, the infectious disease tuberculosis remains one of the most serious challenges to global health. The emergence of multidrug-resistant tuberculosis and, more recently, extensively drug-resistant tuberculosis poses a significant threat in our effort to control this epidemic. New drugs are urgently needed to combat the growing threat of antimicrobial resistance. To achieve this goal, we screened approximately 500 species of medicinal plant methanol extracts and their solvent partitioned fractions for potential inhibitors of Mycobacterium tuberculosis growth...
August 17, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28816232/dual-roles-of-qoa-8a-in-antiosteoporosis-a-combination-of-bone-anabolic-and-anti-resorptive-effects
#12
Jing Wu, Qi Shen, Wei Cui, Yu Zhao, Yue Huai, Yu-Chao Zhang, Bei-Hua Bao, Chen-Xi Liu, Qing Jiang, Jian-Xin Li
Osteoporotic treatments have largely depended on antiresorptive or anabolic drugs; but the former also suppresses new bone formation, and the latter only includes human parathyroid hormone. There is no drug that has a dual effect to inhibit bone resorption and to stimulate bone formation simultaneously. Here, we report a small molecule, a quinoxaline derivative of oleanolic acid (QOA-8a) that plays such dual roles in osteoblasts and osteoclasts in the treatment of osteoporosis. Osteoclast differentiation was induced by incubation of primary mouse bone marrow-derived macrophages in the presence of RANKL and M-CSF, treatment with QOA-8a dose-dependently inhibited the osteoclast formation with an IC50 value of 0...
August 17, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28815947/olive-oil-phenolics-prevent-oxysterol-induced-pro-inflammatory-cytokine-secretion-and-ros-production-in-human-pbmcs-through-modulation-of-p38-and-jnk-pathways
#13
Gessica Serra, Monica Deiana, Jeremy P E Spencer, Giulia Corona
SCOPE: The aim of the present study was to investigate the ability of extra virgin olive oil (EVOO) polyphenols to counteract the pro-inflammatory effects induced by dietary and endogenous oxysterols in ex-vivo immune cells. METHODS AND RESULTS: Peripheral blood mononuclear cells (PBMCs), separated from the whole blood of healthy donors, were utilised and were stimulated with an oxysterols mixture, in the presence of physiologically relevant concentrations of the EVOO polyphenols, hydroxytyrosol (HT), tyrosol (TYR) and homovanillic alcohol (HVA)...
August 16, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28815811/study-of-the-effects-of-spray-drying-in-whey-starch-on-the-probiotic-capacity-of-lactobacillus-rhamnosus-64-in-the-gut-of-mice
#14
L Lavari, P Burns, R Páez, J Reinheimer, G Vinderola
AIMS: To evaluate the effects of spray-drying of Lactobacillus rhamnosus 64 on its capacity to modulate the gut immune response and on the attenuation of TNBS-induced colitis in mice. METHODS AND RESULTS: L. rhamnosus 64 was spray-dried in cheese whey-starch solution and administered to mice for three, six or ten consecutive days. Peritoneal macrophage phagocytic activity, secretory-IgA (S-IgA) levels in the small intestinal fluid and TNFα, IFNγ, IL-10, IL-6 and IL-2 levels in homogenates of the small and large intestine were determined...
August 17, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28815768/micro-vesicles-derived-from-human-wharton-s-jelly-mesenchymal-stromal-cells-mitigate-renal-ischemia-reperfusion-injury-in-rats-after-cardiac-death-renal-transplantation
#15
Xiaoqiang Wu, Tianzhong Yan, Zhiwei Wang, Xuan Wu, Guanghui Cao, Chan Zhang, Xiangyong Tian, Junpeng Wang
OBJECTIVES: The purpose of the present study was to investigate the possible therapeutic effects of the human Wharton-Jelly mesenchymal stromal cells derived micro-vesicles (hWJMSCs-MVs) on renal ischemia-reperfusion injury (IRI) after cardiac death (CD) renal transplantation in rats. METHODS: MVs were injected intravenously in rats immediately after renal transplantation. The animals were sacrificed at 24 h, 48 h, 1 and 2 weeks post-transplantation. ELISA was used to determine the von Willebrand Factor (vWF), tumore necrosis factor (TNF)-α and interleukin (IL)-10 levels in the serum...
August 16, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28815739/kernicterus-in-a-boy-with-ornithine-transcarbamylase-deficiency-a-case-report
#16
Eduardo López-Corella, Isabel Ibarra-González, Cynthia Fernández-Lainez, Miguel Á Rodríguez-Weber, Sara Guillén-Lopez, Leticia Belmont-Martínez, David Agüero-Linares, Marcela Vela-Amieva
Ornithine transcarbamylase deficiency (OTCD) is an X-linked urea cycle defect associated with severe and usually fatal hyperammonemia. This study describes a patient with early onset lethal OTCD due to a known pathogenic variant (c.298+1G>A), as well as the novel autopsy finding of kernicterus with relatively low blood concentration of unconjugated bilirubin (UCB) (11.55 mg/dL). The patient was a full-term male with a family history of two previous male siblings who died as newborns after acute neurologic deterioration...
August 16, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/28815701/lincrna-dyn-lrb2-2-upregulates-cholesterol-efflux-by-decreasing-tlr2-expression-in-macrophages
#17
Yongqiang Li, Shuxin Shen, Shoukun Ding, Lixia Wang
OBJECTIVE: This study is designed to determine whether lincRNA-DYNLRB2-2 could promote cholesterol efflux through regulating the expression of TLR2. METHODS: THP-1 and RAW264.7 cells were incubated with oxLDL for 48 h to induce the formation of foam cells, and ORO staining was performed and intracellular cholesterol contents were measured by HPLC assay. qRT-PCR and Western blotting were performed to detect mRNA and protein expression levels, respectively. Lentiviral vector LV-DYNLRB2-2 and lincRNA-DYNLRB2-2 siRNA was constructed to explore its potential role...
August 16, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28815559/characteristic-elevation-of-soluble-tnf-receptor-ii-to-i-ratio-in-macrophage-activation-syndrome-with-systemic-juvenile-idiopathic-arthritis
#18
Masaki Shimizu, Natsumi Inoue, Mao Mizuta, Yasuo Nakagishi, Akihiro Yachie
To investigate the clinical significance of soluble tumor necrosis factor receptor (sTNFR) II/I ratio as an indicator of the diagnosis of macrophage activation syndrome (MAS) complicating systemic juvenile idiopathic arthritis (s-JIA), we measured the serum sTNFRI and II levels in 117 patients with s-JIA, including 29 patients with MAS, 15 with Epstein-Barr virus-induced hemophagocytic lymphohistiocytosis (EBVHLH), 15 with Kawasaki disease (KD), and 28 healthy controls (HCs). We determined their correlation with measurements of disease activity and severity...
August 16, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28815242/-investigation-of-the-effect-of-nuclear-factor-%C3%AE%C2%BAb-on-inflammatory-cell-recruitment-phenotype-of-oral-cancer-associated-macrophage
#19
Xiao-Tian Zhou, Dong Chen, Zhen-Ning Jin, Ke Huang, Jie Lin, Yi Men, Chun-Jie Li
PURPOSE: To explore the ability of nuclear factor κB (NFκB) in sustaining inflammatory cell recruitment phenotype of oral cancer associated macrophages, by using NFκB inhibitor(-Bay11-7082). METHODS: By primary culture, murine macrophages were harvested. Cal27 conditioned medium (CM) and Bay11-7082 were applied for stimulation of the macrophages. RT-PCR and ELISA were used for detecting the inflammatory cell recruitment related chemotactic factors. GraphPadPrism5 was used for statistical analysis...
April 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28815056/hemojuvelin-regulates-the-innate-immune-response-to-peritoneal-bacterial-infection-in-mice
#20
Qian Wu, Yuanyuan Shen, Yunlong Tao, Jiayu Wei, Hao Wang, Peng An, Zhuzhen Zhang, Hong Gao, Tianhua Zhou, Fudi Wang, Junxia Min
Hereditary hemochromatosis and iron imbalance are associated with susceptibility to bacterial infection; however, the underlying mechanisms are poorly understood. Here, we performed in vivo bacterial infection screening using several mouse models of hemochromatosis, including Hfe (Hfe(-/-) ), hemojuvelin (Hjv(-/-) ), and macrophage-specific ferroportin-1 (Fpn1(fl/fl) ;LysM-Cre(+) ) knockout mice. We found that Hjv(-/-) mice, but not Hfe(-/-) or Fpn1(fl/fl) ;LysM-Cre(+) mice, are highly susceptible to peritoneal infection by both Gram-negative and Gram-positive bacteria...
2017: Cell Discovery
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