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https://www.readbyqxmd.com/read/29222810/monocytes-enhance-neutrophil-induced-blister-formation-in-an-ex-vivo-model-of-bullous-pemphigoid
#1
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/29222551/neutrophil-and-t-cell-homeostasis-in-the-closed-eye
#2
Cameron K Postnikoff, Kelly K Nichols
Purpose: This study sought to examine the changes and phenotype of the tear neutrophil and T-cell populations between early eyelid closure and after a full night of sleep. Methods: Fourteen healthy participants were recruited and trained to wash the ocular surface with PBS for at-home self-collection of ocular surface and tear leukocytes following up to 1 hour of sleep and a full night of sleep (average 7 hours), on separate days. Cells were isolated, counted, and incubated with fluorescently labeled antibodies to identify neutrophils, monocytes, and T cells...
December 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29213284/circulatory-immune-cells-in-cushing-syndrome-bystanders-or-active-contributors-to-atherometabolic-injury-a-study-of-adhesion-and-activation-of-cell-surface-markers
#3
Gloria Aranda, Cristina Lopez, Rebeca Fernandez-Ruiz, Yaiza Esteban, Guillermo Garcia-Eguren, Mireia Mora, Irene Halperin, Gregori Casals, Joaquim Enseñat, Felicia A Hanzu
Glucocorticoids (GC) induce cardiometabolic risk while atherosclerosis is a chronic inflammation involving immunity. GC are immune suppressors, and the adrenocorticotrophic hormone (ACTH) has immune modulator activities. Both may act in atherothrombotic inflammation involving immune cells (IMNC). Aim. To investigate adhesion and activation surface cell markers (CDs) of peripheral IMNC in endogenous Cushing syndrome (CS) and the immune modulator role of ACTH. Material and Methods. 16 ACTH-dependent CS (ACTH-D), 10 ACTH-independent (ACTH-ID) CS, and 16 healthy controls (C) were included...
2017: International Journal of Endocrinology
https://www.readbyqxmd.com/read/29209315/gradual-increase-of-fc%C3%AE-riiia-cd16a-expression-and-shift-toward-ifn-%C3%AE-secretion-during-differentiation-of-cd56dim-natural-killer-cells
#4
Laurie Lajoie, Nicolas Congy-Jolivet, Armelle Bolzec, Gilles Thibault
Natural killer (NK) cell effector functions include cytotoxicity and secretion of cytokines such as interferon-γ (IFN-γ). The immature CD56bright subset of human NK cells lacks expression of FcγRIIIa/CD16a, one of the low-affinity immunoglobulin G receptors, or exhibits low-density expression (CD56brightCD16-/dim) and produces IFN-γ in response to cytokine stimulation, whereas the mature CD56dimCD16+ subset is the most cytotoxic one. A further differentiation/maturation of the latter subset according to the gradual loss of NKG2A and/or gain of KIR2DL (CD158a and CD158b) has been demonstrated and the ability to produce IFN-γ in response to activating receptor (AR) co-engagement is gradually acquired during terminal differentiation...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29203885/monocyte-gene-expression-in-childhood-obesity-is-associated-with-obesity-and-complexity-of-atherosclerosis-in-adults
#5
G C Keustermans, D Kofink, A Eikendal, W de Jager, J Meerding, R Nuboer, J Waltenberger, A O Kraaijeveld, J W Jukema, J W Sels, J Garssen, B J Prakken, F W Asselbergs, E Kalkhoven, I E Hoefer, G Pasterkamp, H S Schipper
Childhood obesity coincides with increased numbers of circulating classical CD14++CD16- and intermediate CD14++CD16+ monocytes. Monocytes are key players in the development and exacerbation of atherosclerosis, which prompts the question as to whether the monocytosis in childhood obesity contributes to atherogenesis over the years. Here, we dissected the monocyte gene expression profile in childhood obesity using an Illumina microarray platform on sorted monocytes of 35 obese children and 16 lean controls. Obese children displayed a distinctive monocyte gene expression profile compared to lean controls...
December 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29200664/proportions-of-proinflammatory-monocytes-are-important-predictors-of-mortality-risk-in-hemodialysis-patients
#6
Yachung Jeng, Paik Seong Lim, Ming Ying Wu, Tien-Yu Tseng, Chang Hsu Chen, Hung Ping Chen, Tsai-Kun Wu
Despite the continuous progression in dialysis medicine, mortality and the burden of cardiovascular disease (CVD) among hemodialysis patients are still substantial. Substantial evidence suggests that proinflammatory (CD16+) monocytes contribute to the development of atherosclerosis. A cohort of 136 stable hemodialysis patients (follow-up: 6.25 year) was assessed to investigate the association between the proportion of CD16+ monocytes for all-cause and CVD mortalities. The CD16+ monocytes were associated with both mortalities after adjusting for a preexisting CVD history...
2017: Mediators of Inflammation
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
#7
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/29191820/monocyte-alterations-in-rheumatoid-arthritis-are-dominated-by-preterm-release-from-bone-marrow-and-prominent-triggering-in-the-joint
#8
Biljana Smiljanovic, Anna Radzikowska, Ewa Kuca-Warnawin, Weronika Kurowska, Joachim R Grün, Bruno Stuhlmüller, Marc Bonin, Ursula Schulte-Wrede, Till Sörensen, Chieko Kyogoku, Anne Bruns, Sandra Hermann, Sarah Ohrndorf, Karlfried Aupperle, Marina Backhaus, Gerd R Burmester, Andreas Radbruch, Andreas Grützkau, Wlodzimierz Maslinski, Thomas Häupl
OBJECTIVE: Rheumatoid arthritis (RA) accompanies infiltration and activation of monocytes in inflamed joints. We investigated dominant alterations of RA monocytes in bone marrow (BM), blood and inflamed joints. METHODS: CD14+ cells from BM and peripheral blood (PB) of patients with RA and osteoarthritis (OA) were profiled with GeneChip microarrays. Detailed functional analysis was performed with reference transcriptomes of BM precursors, monocyte blood subsets, monocyte activation and mobilisation...
November 30, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/29191664/immune-reconstitution-following-autologous-stem-cell-transplantation-in-patients-with-high-risk-neuroblastoma-at-the-time-of-immunotherapy
#9
Michele L Nassin, Elitsa Nicolaou, Sandeep Gurbuxani, Susan L Cohn, John M Cunningham, James L LaBelle
Outcomes for patients with high-risk neuroblastoma (HR-NBL) are significantly improved with the addition of immunotherapy (dinutuximab + cytokines) following autologous hematopoietic stem cell transplantation (autoHSCT). We hypothesized that the immune system is not fully reconstituted at the initiation of immunotherapy. To test this hypothesis, we evaluated hematologic and immune subsets in thirty-four patients with HR-NBL before and following autoHSCT(s). We found that absolute T-, B-, and NK cell counts at the time of immunotherapy were below normal in 80% of patients...
November 27, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29187105/immune-abnormalities-in-patients-with-single-ventricle-circulation-precede-the-fontan-procedure
#10
Lubica Kovacikova, Veronika Krasnanova, Peter Skrak, Martin Zahorec, Andrea Kantorova, Jana Semberova, Ljuba Bacharova
BACKGROUND: Immune abnormalities are common in Fontan patients with protein-losing enteropathy. Limited data exist on immune function of other patients with single ventricle circulation. METHODS: This prospective cohort study evaluated immunologic characteristics of children with single ventricle circulation from neonatal age up to early post-Fontan period. RESULTS: Low leukocyte counts were observed in half of the patients prior to bidirectional Glenn and Fontan surgery...
November 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/29186373/ccr2-expression-on-circulating-monocytes-is-associated-with-arterial-wall-inflammation-assessed-by-18f-fdg-pet-ct-in-patients-at-risk-for-cardiovascular-disease
#11
Simone L Verweij, Raphaël Duivenvoorden, Lotte C A Stiekema, Nick S Nurmohamed, Fleur M van der Valk, Miranda Versloot, Hein J Verberne, Erik S G Stroes, Matthias Nahrendorf, Siroon Bekkering, Sophie J Bernelot Moens
Aim: Circulating monocytes infiltrate the plaque and differentiate into macrophages, contributing to an inflammatory environment which is associated with higher risk of cardiovascular events. Although the pivotal role of circulating monocytes in plaque inflammation has been firmly established, the search continues to identify specific monocyte subsets that may be especially atherogenic. Therefore, we evaluated the relation between monocyte phenotype, particularly surface receptor expression, and arterial wall inflammation in patients at increased cardiovascular risk...
November 24, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/29181067/preoperative-immunonutrition-regulates-tumor-infiltrative-lymphocytes-and-increases-tumor-angiogenesis-in-gastric-cancer-patients
#12
Kivanc Derya Peker, Sidika Seyma Ozkanli, Cebrail Akyuz, Orhan Uzun, Necdet Fatih Yasar, Mustafa Duman, Sinan Yol
Introduction: An increased number of tumor infiltrative lymphocytes (TILs) is considered a favorable prognostic factor in various cancers because it is a marker of antitumoral activity of the immune system. In this prospective, non-randomized clinical trial, we evaluated the impact of preoperative immunonutrition on tumor infiltrative lymphocytes and neoangiogenesis in cancerous tissue in patients with locoregional and resectable gastric adenocarcinoma. Material and methods: Patients with locoregional and resectable gastric adenocarcinoma were divided non-randomly into two study groups...
October 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/29175054/phenotypic-and-functional-characterization-of-porcine-bone-marrow-monocyte-subsets
#13
Teresa Fernández-Caballero, Belén Álvarez, Concepción Revilla, Sara Zaldívar-López, Fernando Alonso, Juan J Garrido, Ángel Ezquerra, Javier Domínguez
Monocytes comprise several subsets with distinct phenotypes and functional capacities. Based on CD163 expression, two major monocyte subsets can be discriminated in the porcine bone marrow. The CD163+ cells expressed higher levels of SLA-DR, Siglec-1, CD11R1 and CD16 when compared to CD163- monocytes, whereas no remarkable differences were observed in the expression of other markers analyzed. Gene expression analysis showed differential expression of several chemokine receptor and TLR genes. Both subsets phagocytosed microspheres with similar efficiency...
November 22, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/29165355/acute-effects-of-nitrate-rich-beetroot-juice-on-blood-pressure-hemostasis-and-vascular-inflammation-markers-in-healthy-older-adults-a-randomized-placebo-controlled-crossover-study
#14
Kyle Raubenheimer, Danica Hickey, Michael Leveritt, Robert Fassett, Joaquin Ortiz de Zevallos Munoz, Jason D Allen, David Briskey, Tony J Parker, Graham Kerr, Jonathan M Peake, Natalie M Pecheniuk, Oliver Neubauer
Aging is associated with a vasoconstrictive, pro-coagulant, and pro-inflammatory profile of arteries and a decline in the bioavailability of the endothelium-derived molecule nitric oxide. Dietary nitrate elicits vasodilatory, anti-coagulant and anti-inflammatory effects in younger individuals, but little is known about whether these benefits are evident in older adults. We investigated the effects of 140 mL of nitrate-rich (HI-NI; containing 12.9 mmol nitrate) versus nitrate-depleted beetroot juice (LO-NI; containing ≤0...
November 22, 2017: Nutrients
https://www.readbyqxmd.com/read/29163501/herceptin-enhances-the-antitumor-effect-of-natural-killer-cells-on-breast-cancer-cells-expressing-human-epidermal-growth-factor-receptor-2
#15
Xiao Tian, Feng Wei, Limei Wang, Wenwen Yu, Naining Zhang, Xinwei Zhang, Ying Han, Jinpu Yu, Xiubao Ren
Optimal adoptive cell therapy (ACT) should contribute to effective cancer treatment. The unique ability of natural killer (NK) cells to kill cancer cells independent of major histocompatibility requirement makes them suitable as ACT tools. Herceptin, an antihuman epidermal growth factor receptor-2 (anti-HER2) monoclonal antibody, is used to treat HER2+ breast cancer. However, it has limited effectiveness and possible severe cardiotoxicity. Given that Herceptin may increase the cytotoxicity of lymphocytes, we explored the possible augmentation of NK cell cytotoxicity against HER2+ breast cancer cells by Herceptin...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29154680/cardiovascular-disease-predictors-and-adipose-tissue-macrophage-polarization-is-there-a-link
#16
Ivana Kralova Lesna, Marek Petras, Sona Cejkova, Anna Kralova, Jiri Fronek, Libor Janousek, Filip Thieme, Tomas Tyll, Rudolf Poledne
Background The risk of cardiovascular disease is closely connected to adipose tissue inflammation. The links between cardiovascular risk predictors and pro and anti-inflammatory macrophages in human adipose tissue were analysed to gain an insight into the pathophysiology of cardiovascular disease. Design Subcutaneous and visceral adipose tissues were obtained from 79 subjects, 52 living kidney donors (during nephrectomy) and 27 patients with peripheral artery disease (during arterial tree reconstruction). Methods Macrophage subsets were isolated from adipose tissues and analysed by flow cytometry using CD14, CD16, CD36 and CD163 monoclonal antibodies...
January 1, 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/29142617/acute-strenuous-exercise-induces-an-imbalance-on-histone-h4-acetylation-histone-deacetylase-2-and-increases-the-proinflammatory-profile-of-pbmc-of-obese-individuals
#17
Gilson P Dorneles, Maria Carolina R Boeira, Lucas L Schipper, Ivy R V Silva, Viviane R Elsner, Pedro Dal Lago, Alessandra Peres, Pedro R T Romão
This study evaluated the response of global histone H4 acetylation (H4ac), histone deacetylase 2 (HDAC2) activity, as well as the production of proinflammatory cytokines and monocyte phenotypes of lean and obese males after exercise. Ten lean and ten obese sedentary men were submitted to one session of strenuous exercise, and peripheral blood mononuclear cells (PBMC) were stimulated in vitro with lipopolysaccharide (LPS). Global H4ac levels, HDAC2 activity in PBMC, and IL-6, IL-8, and TNF-α production were analyzed...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29141868/geographic-clonal-tracking-in-macaques-provides-insights-into-hspc-migration-and-differentiation
#18
Chuanfeng Wu, Diego A Espinoza, Samson J Koelle, E Lake Potter, Rong Lu, Brian Li, Di Yang, Xing Fan, Robert E Donahue, Mario Roederer, Cynthia E Dunbar
The geographic distribution of hematopoiesis at a clonal level is of interest in understanding how hematopoietic stem and progenitor cells (HSPCs) and their progeny interact with bone marrow (BM) niches during regeneration. We tagged rhesus macaque autologous HSPCs with genetic barcodes, allowing clonal tracking over time and space after transplantation. We found marked geographic segregation of CD34(+) HSPCs for at least 6 mo posttransplantation, followed by very gradual clonal mixing at different BM sites over subsequent months to years...
November 15, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/29137628/hypertonic-saline-for-prevention-of-delirium-in-geriatric-patients-who-underwent-hip-surgery
#19
Xi Xin, Fei Xin, Xuguang Chen, Qi Zhang, Yanan Li, Shuping Huo, Chongfu Chang, Qiujun Wang
BACKGROUND: Postoperative delirium (POD) is a common disorder in the elderly patients, and neuroinflammation is the possible underlying mechanism. This study is designed to determine whether or not hypertonic saline (HS) pre-injection can alleviate POD in aged patients. METHODS: This prospective study recruited 120 geriatric patients who underwent hip surgery. The patients were randomly divided into two groups: control group (NS group) and HS group. Patients in the NS group were pre-injected with 4 mL/kg isotonic saline, and those in the HS group were pre-injected with 4 mL/kg 7...
November 14, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29133194/effect-of-native-and-minimally-modified-low-density-lipoprotein-on-the-activation-of-monocyte-subsets
#20
Francisco Blanco-Favela, José Esteban Espinosa-Luna, Adriana Karina Chávez-Rueda, Alejandra Madrid-Miller, Luis Chávez-Sánchez
BACKGROUND: In atherosclerosis, monocytes are essential and secrete pro-inflammatory cytokines in response to modified low-density lipoprotein (LDL). Human CD14(++)CD16(-), CD14(++)CD16(+) and CD14(+)CD16(++) monocytes produce different cytokines. The objective of this research was to determine the number of monocyte subsets positives to cytokines in response to native (nLDL) and minimally modified LDL (mmLDL). METHODS: Human monocytes from healthy individuals were purified by negative selection and were stimulated with nLDL, mmLDL or LPS...
November 10, 2017: Archives of Medical Research
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