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https://www.readbyqxmd.com/read/28437540/characterization-of-gene-expression-phenotype-in-amyotrophic-lateral-sclerosis-monocytes
#1
Weihua Zhao, David R Beers, Kristopher G Hooten, Douglas H Sieglaff, Aijun Zhang, Shanker Kalyana-Sundaram, Christopher M Traini, Wendy S Halsey, Ashley M Hughes, Ganesh M Sathe, George P Livi, Guo-Huang Fan, Stanley H Appel
Importance: Amyotrophic lateral sclerosis (ALS) is a common adult-onset neurodegenerative disease characterized by selective loss of upper and lower motor neurons. Patients with ALS have persistent peripheral and central inflammatory responses including abnormally functioning T cells and activated microglia. However, much less is known about the inflammatory gene profile of circulating innate immune monocytes in these patients. Objective: To characterize the transcriptomics of peripheral monocytes in patients with ALS...
April 24, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28436425/monocyte-differentiation-and-antigen-presenting-functions
#2
REVIEW
Claudia V Jakubzick, Gwendalyn J Randolph, Peter M Henson
Monocytes develop in the bone marrow and represent the primary type of mononuclear phagocyte found in the blood. They were long thought of as a source for tissue macrophages, but recent studies indicate more complex roles for monocytes, both within the circulation and after their migration into tissues and lymphoid organs. In this Review, we discuss the newer concepts underlying the maturation of emigrating monocytes into different classes of tissue macrophages, as well as their potential functions, as monocyte-derived cells, in the tissues...
April 24, 2017: Nature Reviews. Immunology
https://www.readbyqxmd.com/read/28435677/control-of-immune-cell-entry-through-the-tumour-vasculature-a-missing-link-in-optimising-melanoma-immunotherapy
#3
REVIEW
Lih Yin Tan, Carmela Martini, Zvi G Fridlender, Claudine S Bonder, Michael P Brown, Lisa M Ebert
Metastatic melanoma remains a fatal disease to many worldwide, even after the breakthrough introduction of targeted therapies such as BRAF inhibitors and immune checkpoint blockade therapies such as CTLA-4 and PD-1 inhibitors. With advances in our understanding of this disease, as well as the increasing data gathered from patient studies, the significance of the host immune response to cancer progression and response to treatment is becoming clear. More specifically, the presence of intratumoral CD8(+) cytotoxic T-cells correlates with better prognosis whereas the accumulation of monocytes/macrophages and neutrophils in the tumour is often associated with worse prognosis...
March 2017: Clinical & Translational Immunology
https://www.readbyqxmd.com/read/28434946/hyperglycemia-induced-renal-p2x7-receptor-activation-enhances-diabetes-related-injury
#4
Robert I Menzies, John W R Booth, John J Mullins, Matthew A Bailey, Frederick W K Tam, Jill T Norman, Robert J Unwin
Diabetes is a leading cause of renal disease. Glomerular mesangial expansion and fibrosis are hallmarks of diabetic nephropathy and this is thought to be promoted by infiltration of circulating macrophages. Monocyte chemoattractant protein-1 (MCP-1) has been shown to attract macrophages in kidney diseases. P2X7 receptors (P2X7R) are highly expressed on macrophages and are essential components of pro-inflammatory signaling in multiple tissues. Here we show that in diabetic patients, renal P2X7R expression is associated with severe mesangial expansion, impaired glomerular filtration (≤40ml/min/1...
April 20, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28429613/effect-of-dietary-supplementation-with-carnosic-acid-or-vitamin-e-on-animal-performance-haematological-and-immunological-characteristics-of-artificially-reared-suckling-lambs-before-and-after-road-transport
#5
Lara Morán, Sonia Andrés, Carolina Blanco, Julio Benavides, María Martínez-Valladares, Aidan P Moloney, F Javier Giráldez
To elucidate the influence of dietary carnosic acid (CA) and vitamin E on animal performance, immune response indicators and haematological parameters before and after transport stress, 24 lambs were individually fed ad libitum with milk replacer (MR) using an auto-feeder. Once daily the lambs received MR alone (Group CON, n = 8), MR + 0.096 g CA/kg live weight (LW) (Group CARN, n = 8) or MR + 0.024 g of α-tocopheryl acetate per kg LW (Group VitE, n = 8). After reaching the target slaughter weight (12 ± 0...
April 21, 2017: Archives of Animal Nutrition
https://www.readbyqxmd.com/read/28428369/single-cell-rna-seq-reveals-new-types-of-human-blood-dendritic-cells-monocytes-and-progenitors
#6
Alexandra-Chloé Villani, Rahul Satija, Gary Reynolds, Siranush Sarkizova, Karthik Shekhar, James Fletcher, Morgane Griesbeck, Andrew Butler, Shiwei Zheng, Suzan Lazo, Laura Jardine, David Dixon, Emily Stephenson, Emil Nilsson, Ida Grundberg, David McDonald, Andrew Filby, Weibo Li, Philip L De Jager, Orit Rozenblatt-Rosen, Andrew A Lane, Muzlifah Haniffa, Aviv Regev, Nir Hacohen
Dendritic cells (DCs) and monocytes play a central role in pathogen sensing, phagocytosis, and antigen presentation and consist of multiple specialized subtypes. However, their identities and interrelationships are not fully understood. Using unbiased single-cell RNA sequencing (RNA-seq) of ~2400 cells, we identified six human DCs and four monocyte subtypes in human blood. Our study reveals a new DC subset that shares properties with plasmacytoid DCs (pDCs) but potently activates T cells, thus redefining pDCs; a new subdivision within the CD1C(+) subset of DCs; the relationship between blastic plasmacytoid DC neoplasia cells and healthy DCs; and circulating progenitor of conventional DCs (cDCs)...
April 21, 2017: Science
https://www.readbyqxmd.com/read/28421995/endothelial-dysfunction-is-independent-of-inflammation-and-altered-ccr7-t-cell-expression-in-patients-with-ankylosing-spondylitis
#7
Joanna Sulicka, Andrzej Surdacki, Mariusz Korkosz, Tomasz Mikołajczyk, Magdalena Strach, Ewa Klimek, Tomasz Guzik, Tomasz Grodzicki
OBJECTIVES: The accumulation of CCR7 (chemokine receptor 7) positive cells in the vessel wall may be involved in endothelial dysfunction and subsequent accelerated atherogenesis. CCR7 plays a crucial role in T cell and monocyte migration/homing and in priming of naive T lymphocytes in non-lymphoid tissues in chronic inflammatory diseases. Our objective was to investigate the endothelial function and inflammation-driven expression of CCR7 on T lymphocytes in patients with ankylosing spondylitis (AS)...
April 18, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28421818/cell-origin-dictates-programming-of-resident-versus-recruited-macrophages-during-acute-lung-injury
#8
Kara J Mould, Lea Barthel, Michael P Mohning, Stacey M Thomas, Alexandra L McCubbrey, Thomas Danhorn, Sonia M Leach, Tasha E Fingerlin, Brian P O'Connor, Julie A Reisz, Angelo D'Alessandro, Donna L Bratton, Claudia V Jakubzick, William J Janssen
Two populations of alveolar macrophages (AMs) co-exist in the inflamed lung: resident AMs that arise during embryogenesis, and recruited AMs that originate postnatally from circulating monocytes. The objective of this study was to determine whether origin or environment dictates the transcriptional, metabolic, and functional programming of these two ontologically distinct populations over the time course of acute inflammation. RNA sequencing demonstrated marked transcriptional differences between resident and recruited AMs affecting three main areas: proliferation, inflammatory signaling, and metabolism...
April 19, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28420478/-research-progress-on-metabolism-of-monocytes-and-macrophages-in-sepsis
#9
Changli Wang, Lulong Bo, Xiaoming Deng
During sepsis, circulating leukocytes are in a hyper inflammatory state, and with the progress of the inflammation, immune cells may become tolerated. Glycolysis and pentose phosphate pathway are up-regulated but oxidative phosphorylation is suppressed in hyper inflammatory cells, whereas during immune tolerance, glycolysis is often down-regulated. In this review, we will summarize the changes of cellular metabolic pathways in monocytes and macrophages during sepsis. We also review how the metabolism of glucose, amino acids, and fatty acids affect the function of monocytes and macrophages in sepsis...
April 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28419151/skin-resident-cd4-t-cells-protect-against-leishmania-major-by-recruiting-and-activating-inflammatory-monocytes
#10
Nelson D Glennie, Susan W Volk, Phillip Scott
Tissue-resident memory T cells are required for establishing protective immunity against a variety of different pathogens, although the mechanisms mediating protection by CD4+ resident memory T cells are still being defined. In this study we addressed this issue with a population of protective skin-resident, IFNγ-producing CD4+ memory T cells generated following Leishmania major infection. We previously found that resident memory T cells recruit circulating effector T cells to enhance immunity. Here we show that resident memory CD4+ T cells mediate the delayed-hypersensitivity response observed in immune mice and provide protection without circulating T cells...
April 18, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28413510/association-of-white-blood-cell-counts-with-left-ventricular-mass-index-in-hypertensive-patients-undergoing-anti-hypertensive-drug-therapy
#11
Hongtao Shi, Hongxia Chu, Zhiyang Lv, Guanming Qi, Junjie Guo, Wei Fu, Xiaojing Wang, Xiangyu Guo, Junbo Ge, Chengqian Yin
Although studies using animal models have demonstrated that nonhemodynamic factors, including inflammatory cells and cytokines, contribute to left ventricular hypertrophy (LVH), there is little clinical data to confirm this association. Therefore in the present study, levels of circulating specific types of leukocyte were measured to determine the association between white blood cells and left ventricular mass index (LVMI) in hypertensive patients undergoing anti-hypertensive drug therapy. A total of 144 consecutive hypertensive patients taking anti-hypertensive drug therapy were enrolled in the current study...
April 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28412745/neutrophil-count-is-associated-with-myeloid-derived-suppressor-cell-level-and-presents-prognostic-value-of-for-hepatocellular-carcinoma-patients
#12
Xing Li, Yan-Fang Xing, Ai-Hua Lei, Qiang Xiao, Zhi-Huan Lin, Ying-Fen Hong, Xiang-Yuan Wu, Jie Zhou
Myeloid Derived Suppressor Cell (MDSC) has been raised to be a novel target for multiple cancers. However, target agents on MDSC have not display promising efficacy. One of the critical reasons shall be less optimal patient selection. In the present study, we aimed to identify clinical parameters relevant to MDSC level in hepatocellular carcinoma (HCC) patients for future MDSC targeted therapy. In the present study, a series of 55 HCC patients (testing group) and 20 healthy donors were analyzed investigating frequencies of MDSC in peripheral blood mononuclear cells (PBMC)...
February 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28410520/maternal-and-infant-inflammatory-markers-in-relation-to-prenatal-arsenic-exposure-in-a-u-s-pregnancy-cohort
#13
Shohreh F Farzan, Elizabeth B Brickley, Zhigang Li, Diane Gilbert-Diamond, Anala Gossai, Yu Chen, Caitlin G Howe, Thomas Palys, Margaret R Karagas
INTRODUCTION: Accumulating evidence indicates that arsenic (As), a potent environmental toxicant, may increase cardiovascular disease risk and adversely affect endothelial function at high levels of exposure. Pregnancy is a vulnerable time for both mother and child; however, studies examining the association between prenatal As exposure and plasma biomarkers of inflammation and endothelial function in mothers and newborns are lacking. METHODS: We examined maternal urinary As levels at gestational weeks 24-28 and levels of inflammatory biomarkers in plasma from 563 pregnant women and 500 infants' cord blood...
April 11, 2017: Environmental Research
https://www.readbyqxmd.com/read/28403127/a-randomized-controlled-clinical-trial-comparing-belatacept-with-tacrolimus-after-de-novo-kidney-transplantation
#14
Gretchen de Graav, Carla C Baan, Marian C Clahsen-van Groningen, Rens Kraaijeveld, Marjolein Dieterich, Wenda Verschoor, Jan H von der Thusen, Dave L Roelen, Monique Cadogan, Jacqueline van de Wetering, Joost van Rosmalen, Wilem Weimar, Dennis A Hesselink
BACKGROUND: Belatacept, an inhibitor of the CD28-CD80/86 co-stimulatory pathway, allows for calcineurin-inhibitor free immunosuppressive therapy in kidney transplantation but is associated with a higher acute rejection risk than ciclosporin. Thus, no biomarker for belatacept-resistant rejection has been validated. In this randomized controlled trial, acute rejection-rate was compared between belatacept- and tacrolimus-treated patients and immunological biomarkers for acute rejection were investigated...
April 11, 2017: Transplantation
https://www.readbyqxmd.com/read/28400731/il-1-inhibition-may-have-an-important-role-in-treating-refractory-kawasaki-disease
#15
REVIEW
Perrine Dusser, Isabelle Koné-Paut
Kawasaki disease (KD) is an acute inflammatory vasculitis occurring in young children before 5 years and representing at this age, the main cause of acquired heart disease. A single infusion of 2 g/kg of intravenous immunoglobulins along with aspirin has reduced the frequency of coronary artery aneurysms from 25 to 5%. However, 10-20% of patients do not respond to standard treatment and have an increased risk of cardiac complications and death. The development of more potent therapeutic approaches of KD is an urgent need...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28400539/mass-cytometry-deep-phenotyping-of-human-mononuclear-phagocytes-and-myeloid-derived-suppressor-cells-from-human-blood-and-bone-marrow
#16
Mikael Roussel, P Brent Ferrell, Allison R Greenplate, Faustine Lhomme, Simon Le Gallou, Kirsten E Diggins, Douglas B Johnson, Jonathan M Irish
The monocyte phagocyte system (MPS) includes numerous monocyte, macrophage, and dendritic cell (DC) populations that are heterogeneous, both phenotypically and functionally. In this study, we sought to characterize those diverse MPS phenotypes with mass cytometry (CyTOF). To identify a deep phenotype of monocytes, macrophages, and DCs, a panel was designed to measure 38 identity, activation, and polarization markers, including CD14, CD16, HLA-DR, CD163, CD206, CD33, CD36, CD32, CD64, CD13, CD11b, CD11c, CD86, and CD274...
April 11, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28393618/regulatory-b-cells-are-functionally-impaired-in-patients-having-hemophilia-a-with-inhibitors
#17
Mohamed-Rachid Boulassel, Maryam Al-Ghonimi, Badriya Al-Balushi, Amal Al-Naamani, Zahra Al-Qarni, Yasser Wali, Mohamed Elshinawy, Maryam Al-Shezawi, Hamad Khan, Hanan Nazir, Doaa Khater, Anil Pathare, Salam Al-Kindi
Development of inhibitors remains a major clinical complication in patients with hemophilia A receiving replacement therapy with factor VIII (FVIII). Understanding the immune mechanisms involved in the development of inhibitors can provide valuable information about pathways to human tolerance. Recent evidence indicates that B regulatory (Breg) cells play a pivotal role in controlling the production of antibodies (Abs) while promoting follicular T helper (Tfh) cells and monocytes, expressing the low-density lipoprotein receptor-related protein (LRP/CD91), which is involved in FVIII intake from the circulation...
January 1, 2017: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/28391912/effects-of-atorvastatin-on-biomarkers-of-immune-activation-inflammation-and-lipids-in-virologically-suppressed-human-immunodeficiency-virus-1-infected-individuals-with-low-density-lipoprotein-cholesterol-130%C3%A2-mg-dl-aids-clinical-trials-group-study-a5275
#18
Daniel E Nixon, Ronald J Bosch, Ellen S Chan, Nicholas T Funderburg, Sally Hodder, Jordan E Lake, Michael M Lederman, Karin L Klingman, Judith A Aberg
BACKGROUND: Persistent immune activation and inflammation in virologically suppressed human immunodeficiency virus (HIV) infection are linked to excess cardiovascular risk. OBJECTIVE: To evaluate atorvastatin as a strategy to reduce cardiovascular risk. METHODS: A5275 was a multicenter, prospective, randomized, double-blind, placebo-controlled, cross-over pilot study of atorvastatin (10 mg/day for 4 weeks then 20 mg/day for 16 weeks) with a planned enrollment of 97 HIV-infected participants ≥18 years old, receiving boosted protease inhibitor-based antiretroviral therapy for ≥6 months, with plasma HIV-1 RNAs below limits of quantification ≥180 days, and fasting low-density lipoprotein (LDL) cholesterol ≥70 and <130 mg/dL...
January 2017: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/28390393/regulatory-monocytes-in-helminth-infections-insights-from-the-modulation-during-human-hookworm-infection
#19
Lívia Silva Araújo Passos, Pedro Henrique Gazzinelli-Guimarães, Tiago Antônio de Oliveira Mendes, Ana Clara Gazzinelli Guimarães, Denise da Silveira Lemos, Natasha Delaqua Ricci, Ricardo Gonçalves, Daniella Castanheira Bartholomeu, Ricardo Toshio Fujiwara, Lilian Lacerda Bueno
BACKGROUND: While the macrophage polarization is well characterized in helminth infections, the natural heterogeneity of monocytes with multiple cell phenotypes might influence the outcome of neglected diseases, such hookworm infection. Here, we report the profile of monocytes in human hookworm infections as a model to study the regulatory subpopulation of monocytes in helminth infections. METHODS: Blood samples were collected from 19 Necator americanus-infected individuals and 13 healthy individuals...
April 8, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28387859/altered-expression-of-signalling-lymphocyte-activation-molecule-receptors-in-t-cells-from-lupus-nephritis-patients-a-potential-biomarker-of-disease-activity
#20
Victoria Stratigou, Anne F Doyle, Francesco Carlucci, Lauren Stephens, Valentina Foschi, Marco Castelli, Nicola McKenna, H Terence Cook, Liz Lightstone, Thomas D Cairns, Matthew C Pickering, Marina Botto
Objectives.: The aim was to investigate whether the signalling lymphocyte activation molecule (SLAM) signalling pathways contribute to LN and whether SLAM receptors could be valuable biomarkers of disease activity. Methods.: Peripheral blood mononuclear cells from 30National Research Ethics Service SLE patients with biopsy-proven LN were analysed by flow cytometry. Clinical measures of disease activity were assessed. The expression of the SLAM family receptors on T-cell subpopulations [CD4, CD8 and double negative (DN) T cells] was measured and compared between lupus patients with active renal disease and those in remission...
April 5, 2017: Rheumatology
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