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circulating Monocyte cells

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https://www.readbyqxmd.com/read/29244871/inflammatory-monocytes-mediate-control-of-acute-alphavirus-infection-in-mice
#1
Kelsey C Haist, Kristina S Burrack, Bennett J Davenport, Thomas E Morrison
Chikungunya virus (CHIKV) and Ross River virus (RRV) are mosquito-transmitted alphaviruses that cause debilitating acute and chronic musculoskeletal disease. Monocytes are implicated in the pathogenesis of these infections; however, their specific roles are not well defined. To investigate the role of inflammatory Ly6ChiCCR2+ monocytes in alphavirus pathogenesis, we used CCR2-DTR transgenic mice, enabling depletion of these cells by administration of diptheria toxin (DT). DT-treated CCR2-DTR mice displayed more severe disease following CHIKV and RRV infection and had fewer Ly6Chi monocytes and NK cells in circulation and muscle tissue compared with DT-treated WT mice...
December 15, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/29241982/monocyte-profile-in-peripheral-blood-of-gestational-diabetes-mellitus-patients
#2
Ana G S Angelo, Carla T C Neves, Thalita F Lobo, Ramon V C Godoy, Érika Ono, Rosiane Mattar, Silvia Daher
OBJECTIVE: Gestational diabetes Mellitus has been considered an inflammatory disease involving different cells and mediators in its development. The role of innate immune cells in GDM physiopathology remains unclear, therefore this study was conducted to assess monocyte profile in GDM patients. DESIGN: This was a case-control study including 20 glucose-tolerant pregnant women (controls) and 18 GDM patients. METHODS: Flow cytometry was used to assess peripheral blood monocytes subsets (classical, intermediate, non-classical), the expression of TLR4 and CCR2 chemokine receptor (CD192) and cytokines (TNFA, IL6, IL10) secretion by monocytes subsets...
December 11, 2017: Cytokine
https://www.readbyqxmd.com/read/29233585/tim-4-expression-increases-in-ischemic-stroke-patients-and-is-associated-with-poor-outcome
#3
Liyun Xu, Zhinan Ye, Binda Wang, Yanyan Huang, Lin Zhou, Chunyan Liu, Dongdong Chen, Maojun Sun, Fangyu Dai, Shuyi Guan, Weiguo Tang
T cell immunoglobin and mucin domain (Tim)-4 on monocytes is involved in immune regulation. Here, we investigated Tim-4 expression on circulating monocytes and in plasma of ischemic stroke. Tim-4 expression was significantly increased on day 2 and day 5 after stroke. Furthermore, stroke severity was positively correlated with Tim-4 expression on monocytes or in plasma. Increased Tim-4 expression was related to stroke associated with infection (SAI) on day 2. Up-regulated Tim-4 expression on monocytes or in plasma on day 2 was a risk predictor of outcome...
December 2, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/29230664/cd14-%C3%A2-hla-dr-low-mdscs-are-elevated-in-the-periphery-of-early-stage-breast-cancer-patients-and-suppress-autologous-t-cell-proliferation
#4
Lisa Speigl, Helen Burow, Jithendra Kini Bailur, Nicole Janssen, Christina-Barbara Walter, Graham Pawelec, Christopher Shipp
PURPOSE: Despite the recent expansion in the use of immunotherapy for many cancer types, it is still not a standard treatment for breast cancer. Identifying differences in the immune systems of breast cancer patients compared to healthy women might provide insight into potential targets for immunotherapy and thus may assist its clinical implementation. METHODS: Multi-colour flow cytometry was used to investigate myeloid and lymphoid populations in the peripheral blood of breast cancer patients (n = 40) and in the blood of healthy age-matched women (n = 25)...
December 11, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29229868/sex-dependent-differences-in-inflammatory-responses-during-liver-regeneration-in-a-murine-model-of-acute-liver-injury
#5
Debora Bizzaro, Marika Crescenzi, Rosa Di Liddo, Diletta Arcidiacono, Andrea Cappon, Thomas Bertalot, Vincenzo Amodio, Alessia Tasso, Annalisa Stefani, Valentina Bertazzo, Giacomo Germani, Chiara Frasson, Giuseppe Basso, Pierpaolo Parnigotto, Malcolm Ronald Alison, Patrizia Burra, Maria Teresa Conconi, Francesco Paolo Russo
A sexual dimorphism in liver inflammation and repair was previously demonstrated. Its cellular dissection in the course of acute liver injury (ALI) was explored. BALB/c mice were treated with carbon tetrachloride (CCl4) by intraperitoneal injection and sacrificed after 3, 5 and 8 days. Histological and hepatic cell population analyses were performed. The correlation between androgen receptor (AR) expression and liver recruited inflammatory cells was investigated by treatment with the AR antagonist flutamide...
December 11, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/29227493/prophylactic-role-of-vitamin-k-supplementation-on-vascular-inflammation-in-type-2-diabetes-by-regulating-the-nf-%C3%AE%C2%BAb-nrf2-pathway-via-activating-gla-proteins
#6
Anjum Dihingia, Dibyajyoti Ozah, Pranab Kumar Baruah, Jatin Kalita, Prasenjit Manna
There is no previous study that has examined the relationship between circulating vitamin K1 (VK1) and vascular inflammation in type 2 diabetes (T2D). This study aims to examine the hypothesis that circulating VK1 deficiency may be associated with higher inflammation and insulin resistance in T2D patients and that VK1 supplementation regulates the NF-κB/Nrf2 pathway via activating VK-dependent Gla proteins and reduces vascular inflammation. The results showed that plasma VK1 levels were significantly lower and MCP-1, fasting glucose, HbA1c, and insulin resistance (HOMA-IR) were significantly higher in T2D patients compared to those in the controls...
December 11, 2017: Food & Function
https://www.readbyqxmd.com/read/29226717/atypical-chronic-myeloid-leukemia-a-rare-entity-with-management-challenges
#7
Prajwal Dhakal, Krishna Gundabolu, Catalina Amador, Supratik Rayamajhi, Vijaya Raj Bhatt
The aim of our study was to review the clinicopathologic features and management of atypical chronic myeloid leukemia (aCML). Relevant manuscripts published in English were searched using PubMed. aCML is diagnosed as per WHO 2016 classification in the presence of leukocytosis ≥13 × 109/l with circulating neutrophil precursors ≥10%, monocytes less than 10%, minimal basophils, hypercellular bone marrow with granulocytic proliferation and dysplasia, bone marrow blast less than 20% and absence of BCR/ABL fusion gene...
December 11, 2017: Future Oncology
https://www.readbyqxmd.com/read/29226690/low-levels-of-endothelial-progenitor-cells-and-their-association-with-systemic-inflammation-and-monocyte-activation-in-older-hiv-infected-men
#8
Sophie Seang, Theodoros Kelesidis, Diana Huynh, Sangeun Park, Ardis Moe, Judith Currier, Jordan E Lake
BACKGROUND: Endothelial progenitor cells (EPCs) repair damaged vascular endothelium and low circulating EPC levels have been associated with cardiovascular disease (CVD). CD34+/KDR+ EPCs are commonly reported in literature and CD34+/CD133+/KDR+ EPCs are rare in circulation but highly specific for endothelial lineage. HIV-infected (HIV+) adults have chronic inflammation and increased CVD risk, but the relationship between CVD, vascular inflammation and EPCs in HIV remains unclear. METHODS: In a pilot study, EPCs were measured in 57 HIV+ men (≧50 years old, HIV-1 RNA <50 copies/mL on ART) by real-time flow cytometry using cellular immaturity (CD34 and/or CD133) and endothelial commitment (KDR) markers...
December 10, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/29226261/coordination-of-early-cellular-reactions-during-activation-of-bone-resorption-in-the-rat-mandible-periosteum-an-immunohistochemical-study
#9
Bassam Hassan, Isabelle Fouilloux, Brigitte Baroukh, Annie Llorens, Martin Biosse Duplan, Marjolaine Gosset, Marc Cherruau, Jean-Louis Saffar
The activation step of bone remodeling remains poorly characterized. Activation comprises determination of the site to be remodeled, osteoclast precursor recruitment, their migration to the site of remodeling, and differentiation. These actions involve different compartments and cell types. The aim of this study was to investigate events and cell types involved during activation. We used a bone remodeling model in rats where extractions of the upper jaw molars initiate remodeling of the antagonist lower jaw (mandible) cortex along the periosteum...
October 2017: Heliyon
https://www.readbyqxmd.com/read/29225811/regular-exercise-during-haemodialysis-promotes-an-anti-inflammatory-leucocyte-profile
#10
Maurice Dungey, Hannah M L Young, Darren R Churchward, James O Burton, Alice C Smith, Nicolette C Bishop
Background: Cardiovascular disease is the most common cause of mortality in haemodialysis (HD) patients and is highly predicted by markers of chronic inflammation. Regular exercise may have beneficial anti-inflammatory effects, but this is unclear in HD patients. This study assessed the effect of regular intradialytic exercise on soluble inflammatory factors and inflammatory leucocyte phenotypes. Methods: Twenty-two HD patients from a centre where intradialytic cycling was offered thrice weekly and 16 HD patients receiving usual care volunteered...
December 2017: Clinical Kidney Journal
https://www.readbyqxmd.com/read/29222810/monocytes-enhance-neutrophil-induced-blister-formation-in-an-ex-vivo-model-of-bullous-pemphigoid
#11
E de Graauw, C Sitaru, M P Horn, L Borradori, S Yousefi, D Simon, H-U Simon
BACKGROUND: Lesions of bullous pemphigoid (BP), an autoimmune subepidermal blistering disease characterized by the presence of tissue-bound and circulating autoantibodies to hemidesmosomal antigens, harbour a mixed inflammatory cellular infiltrate. In various models, neutrophils, eosinophils, mast cells, monocytes as well as B and T cells have been shown to be involved in the pathogenesis of BP. However, their interactions with and effective role in blister formation remains uncertain...
December 8, 2017: Allergy
https://www.readbyqxmd.com/read/29218105/systemic-inflammation-is-associated-with-myocardial-fibrosis-diastolic-dysfunction-and-cardiac-hypertrophy-in-patients-with-hypertrophic-cardiomyopathy
#12
Lu Fang, Andris H Ellims, Anna L Beale, Andrew J Taylor, Andrew Murphy, Anthony M Dart
BACKGROUND: Regional or diffuse fibrosis is an early feature of hypertrophic cardiomyopathy (HCM) and is related to poor prognosis. Previous studies have documented low-grade inflammation in HCM. The aim of this study was to examine the relationships between circulating inflammatory markers and myocardial fibrosis, systolic and diastolic dysfunction, and the degree of cardiac hypertrophy in HCM patients. METHODS AND RESULTS: Fifty HCM patients were recruited while 20 healthy subjects served as the control group...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/29217299/high-pd-l1-cd86-mfi-ratio-and-il-10-secretion-characterize-human-regulatory-dendritic-cells-generated-for-clinical-testing-in-organ-transplantation
#13
Alan F Zahorchak, Camila Macedo, David E Hamm, Lisa H Butterfield, Diana M Metes, Angus W Thomson
Human regulatory dendritic cells (DCreg) were generated from CD14 immunobead-purified or elutriated monocytes in the presence of vitamin D3 and IL-10. They exhibited similar, low levels of costimulatory CD80 and CD86, but comparatively high levels of co-inhibitory programed death ligand-1 (PD-L1) and IL-10 production compared to control immature DC (iDC). Following Toll-like receptor 4 ligation, unlike control iDC, DCreg resisted phenotypic and functional maturation and further upregulated PD-L1:CD86 expression...
September 14, 2017: Cellular Immunology
https://www.readbyqxmd.com/read/29216392/dioxin-like-pcb-126-increases-systemic-inflammation-and-accelerates-atherosclerosis-in-lean-ldl-receptor-deficient-mice
#14
Michael C Petriello, J Anthony Brandon, Jessie Hoffman, Chunyan Wang, Himi Tripathi, Ahmed Abdel-Latif, Xiang Ye, Xiangan Li, Liping Yang, Eun Lee, Sony Soman, Jazmyne Barney, Banrida Wahlang, Bernhard Hennig, Andrew J Morris
Exposure to dioxins and related persistent organic pollutants likely contributes to cardiovascular disease (CVD) risk through multiple mechanisms including the induction of chronic inflammation. Epidemiological studies have shown that leaner individuals may be more susceptible to the detrimental effects of lipophilic toxicants because they lack large adipose tissue depots that can accumulate and sequester these pollutants. This phenomenon complicates efforts to study mechanisms of pollutant-accelerated atherosclerosis in experimental animal models where high-fat feeding and adipose expansion limit the bioavailability of lipophilic pollutants...
December 1, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29206476/systemic-markers-of-adaptive-and-innate-immunity-are-associated-with-copd-severity-and-spirometric-disease-progression
#15
Eitan Halper-Stromberg, Jeong H Yun, Margaret M Parker, Ruth Tal Singer, Amit Gaggar, Edwin K Silverman, Sonia Leach, Russell P Bowler, Peter J Castaldi
The progression of chronic obstructive pulmonary disease (COPD) is associated with marked alterations in circulating immune cell populations, but no studies have characterized alterations in these cell types across the full spectrum of lung function impairment in current and former smokers. In 6,299 subjects from the COPDGene and ECLIPSE studies, we related Coulter blood counts and proportions to cross-sectional FEV1 adjusting for current smoking status. We also related cell count measures to three-year change in FEV1 in ECLIPSE subjects...
December 5, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/29201022/leishmania-infantum-induces-the-release-of-strem-1-in-visceral-leishmaniasis
#16
Lays G S Bomfim, Lucas S Magalhães, Marcello A A Santos-Filho, Nalu T A Peres, Cristiane B Corrêa, Diego M Tanajura, Angela M Silva, Michael W Lipscomb, Valéria M Borges, Amélia R Jesus, Roque P Almeida, Tatiana R de Moura
Visceral leishmaniasis (VL) is a systemic transmissible disease that remains to be a major global health problem. The inflammatory response during VL is characterized by the release of several cytokines and other pro-inflammatory mediators. Triggering Receptor Expressed on Myeloid Cells (TREM) are a group of evolutionarily conserved membrane-bound surface receptors expressed on neutrophils and monocytes. Engagement of TREM-1 directs intracellular signaling events that drive cytokine production, degranulation, and phagocytosis...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29198385/platelet-derived-chemokines-in-inflammation-and-atherosclerosis
#17
Constantinos Bakogiannis, Marco Sachse, Kimon Stamatelopoulos, Konstantinos Stellos
Platelets are inflammatory a nuclear cells with a well-established role in the development and manifestation of atherosclerosis. Activated platelets secrete a plethora of chemokines including CXCL4 or platelet factor 4 (PF4), CCL5, CXCL12 or stromal cell derived factor-1α (SDF-1α), CXCL16 and others, which initiate or promote local inflammatory processes at sites of vascular injury. These processes are mainly mediated by the recruitment of circulating haematopoietic stem cells, neutrophils, monocytes or lymphocytes on vascular wall...
November 30, 2017: Cytokine
https://www.readbyqxmd.com/read/29194121/hiv-infected-cannabis-users-have-lower-circulating-cd16-monocytes-and-ip-10-levels-compared-to-non-using-hiv-patients
#18
Michael D Rizzo, Robert B Crawford, Joseph E Henriquez, Yasser Aldhamen, Peter Gulick, Andrea Amalfitano, Norbert E Kaminski
OBJECTIVE: Chronic immune activation and elevated numbers of circulating activated monocytes (CD16) are implicated in HIV-associated neuroinflammation. The objective was to compare the level of circulating CD16 monocytes and interferon-γ-inducible protein 10 (IP-10) between HIV-infected cannabis users (HIV+MJ+) and non-cannabis users (HIV+MJ-), and determine whether in vitro Δ-Tetrahydrocannabinol (THC), a constituent of cannabis, affected CD16 expression as well as IP-10 production by monocytes...
November 30, 2017: AIDS
https://www.readbyqxmd.com/read/29192208/endogenous-annexin-a1-regulates-haematopoietic-stem-cell-mobilisation-and-inflammatory-response-post-myocardial-infarction-in-mice-in-vivo
#19
Cheng Xue Qin, Siobhan B Finlayson, Annas Ai-Sharea, Mitchel Tate, Miles J De Blasio, Minh Deo, Sarah Rosli, Darnel Prakoso, Colleen J Thomas, Helen Kiriazis, Eleanor Gould, Yuan H Yang, Eric F Morand, Mauro Perretti, Andrew J Murphy, Xiao-Jun Du, Xiao-Ming Gao, Rebecca H Ritchie
Endogenous anti-inflammatory annexin-A1 (ANX-A1) plays an important role in preserving left ventricular (LV) viability and function after ischaemic insults in vitro, but its long-term cardioprotective actions in vivo are largely unknown. We tested the hypothesis that ANX-A1-deficiency exaggerates inflammation, haematopoietic stem progenitor cell (HSPC) activity and LV remodelling in response to myocardial ischaemia in vivo. Adult ANX - A1 -/- mice subjected to coronary artery occlusion exhibited increased infarct size and LV macrophage content after 24-48 h reperfusion compared with wildtype (WT) counterparts...
November 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29180664/circulating-microparticles-in-acute-diabetic-charcot-foot-exhibit-a-high-content-of-inflammatory-cytokines-and-support-monocyte-to-osteoclast-cell-induction
#20
Jennifer Pasquier, Binitha Thomas, Jessica Hoarau-Véchot, Tala Odeh, Amal Robay, Omar Chidiac, Soha R Dargham, Rebal Turjoman, Anna Halama, Khalid Fakhro, Robert Menzies, Amin Jayyousi, Mahmoud Zirie, Jassim Al Suwaidi, Arash Rafii, Rayaz A Malik, Talal Talal, Charbel Abi Khalil
Circulating microparticles (MPs) are major mediators in cardiovascular complications of type 2 diabetes (T2D); however, their contribution to Charcot foot (CF) disease is not known. Here, we purified and assessed the origin, concentration and content of circulating MPs from 33 individuals: 11 with T2D and acute CF, 11 T2D patients with equivalent neuropathy and 11 non-diabetic controls. First, we demonstrated that there were no differences in the distribution of MPs of endothelial, platelet origin among the 3 groups...
November 27, 2017: Scientific Reports
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