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https://www.readbyqxmd.com/read/28645775/altered-populations-of-natural-killer-cells-cytotoxic-t-lymphocytes-and-regulatory-t-cells-in-major-depressive-disorder-association-with-sleep-disturbance
#1
Hideo Suzuki, Jonathan Savitz, T Kent Teague, Siva K Gandhapudi, Chibing Tan, Masaya Misaki, Brett A McKinney, Michael R Irwin, Wayne C Drevets, Jerzy Bodurka
A subset of individuals with major depressive disorder (MDD) have impaired adaptive immunity characterized by a greater vulnerability to viral infection and a deficient response to vaccination along with a decrease in the number and/or activity of T cells and natural killer cells (NKC). Nevertheless, it remains unclear which specific subsets of lymphocytes are altered in MDD, a shortcoming we address here by utilizing an advanced fluorescence-activated cell sorting (FACS) method that allows for the differentiation of important functionally-distinct lymphocyte sub-populations...
June 20, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28644973/il-18-il-15-il-12-synergy-induces-elevated-and-prolonged-ifn-%C3%AE-production-by-ex-vivo-expanded-nk-cells-which-is-not-due-to-enhanced-stat4-activation
#2
Evan Lusty, Sophie M Poznanski, Karen Kwofie, Talveer S Mandur, Dean A Lee, Carl D Richards, Ali A Ashkar
The synergistic effect of IL-18/IL-15/IL-12 stimulation potently activates NK cells, inducing high levels of IFN-γ production. As a result of this potent stimulatory effect, NK cell pre-activation with IL-18/IL-15/IL-12 is being developed as a cancer immunotherapy. Ex vivo expansion of NK cells enables the efficient generation of large numbers of NK cells for wide-scale and repeated therapeutic use, and is thus an important source of NK cells for clinical application. However, the effects of IL-18/IL-15/IL-12 stimulation on ex vivo expanded NK cells have not yet been assessed...
June 20, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28641299/monocyte-subsets-are-differentially-lost-from-the-circulation-during-acute-inflammation-induced-by-human-experimental-endotoxemia
#3
Tamar Tak, Roger van Groenendael, Peter Pickkers, Leo Koenderman
Three human monocyte subsets are recognized with different functions in the immune system: CD14++/CD16- classical monocytes (CM), CD14++/CD16+ intermediate monocytes (IM) and CD14+/CD16++ non-classical monocytes (NCM). Increased IM and NCM percentages have been reported under inflammatory conditions, yet little is known about monocyte subsets at the onset of inflammation. The human endotoxemia model is uniquely capable of studying the first phases of acute inflammation induced by intravenous injection of 2 ng/kg bodyweight lipopolysaccharide (LPS) into healthy volunteers...
June 23, 2017: Journal of Innate Immunity
https://www.readbyqxmd.com/read/28640663/glycosylation-profile-and-biological-activity-of-remicade%C3%A2-compared-with-flixabi%C3%A2-and-remsima%C3%A2
#4
Changsoo Lee, Min Jeong, JongAh Joanne Lee, Saebom Seo, Sung Chun Cho, Wei Zhang, Orlando Jaquez
As biosimilars enter the market, comparisons of product quality are needed. Manufacturing differences may lead to differences in critical quality attributes, which affect efficacy. Therefore, critical quality attributes (structure and biological activity) of Remicade® and of 2 biosimilar products (Flixabi®/Renflexis® and Remsima®/Inflectra®) were determined. We assessed binding to tumor necrosis factor in a fluorescence competitive binding assay; potency in a luciferase reporter gene assay; percentages of galactosylated glycan, afucose plus high mannosylated glycans, and charged glycan; FcγRIIIa (CD16) binding (assessed by 3 methods); and antibody-dependent cell-mediated cytotoxicity (ADCC) in the NK92-CD16a cell line and in peripheral blood mononuclear cells (PBMC)...
June 22, 2017: MAbs
https://www.readbyqxmd.com/read/28639993/peripheral-monocytes-macrophages-phenotypes-associated-to-the-evolution-of-cognitive-performance-in-hiv-infected-patients
#5
Massimiliano Fabbiani, Antonio Muscatello, Paolo Perseghin, Marco Bani, Arianna Incontri, Nicola Squillace, Giuseppe Lapadula, Andrea Gori, Alessandra Bandera
BACKGROUND: The contribution of monocyte activation in the development of HIV-associated neurocognitive disorders is not completely understood. This study aimed to explore the predictive value of peripheral monocyte/macrophage (M/M) phenotypes on the evolution of cognitive performance in a population of virologically-suppressed HIV-infected patients. SETTING: Prospective, observational, longitudinal study. METHODS: HIV-1-infected patients with HIV-RNA<50copies/mL for >12 months underwent neuropsychological examination at baseline and after one year...
June 19, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28636546/changes-of-peripheral-lymphocyte-subsets-and-cytokine-environment-during-ageing-and-deteriorating-gastrointestinal-tract-health-status
#6
Jing Wang, Guodong Yang, Dongfang Wang, Kuiliang Liu, Yongchao Ma, Hong Liu, Jing Wu, Min Fang
Human immune senescence accompanies with the physical and physiological frailty. The functional change and shift of NK, NKT and T cell subsets by ageing have been widely studied. However, it remains largely unclear how the ageing and disease conditions affect the distribution of lymphocytes. In the present study, 233 subjects with age range from 20 to 87 year old, including healthy people, people with chronic gastrointestinal tract disease or cancers were investigated. We found that the proportion of NK cells, CD8+ T cells and NKT cells remained relatively unchanged with ageing...
June 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28635405/effects-of-microwave-ablation-on-t-cell-subsets-and-cytokines-of-patients-with-hepatocellular-carcinoma
#7
Haiwen Zhang, Xiaowei Hou, Hongjian Cai, Xingjun Zhuang
OBJECTIVES: To investigate the effects of microwave ablation on T-lymphocyte subsets and cytokines in patients with hepatocellular carcinoma. MATERIAL AND METHODS: Peripheral blood was collected from 45 patients with hepatocellular carcinoma treated by microwave ablation before treatment, one week and one month after treatment. T cells (CD3+, CD4+ and CD8+ cells), CD4+ CD25+ Tregs, and CD16+ CD56+ NK cells were analyzed by flow cytometry. Levels of cytokines (IL-2, IFN-γ, TNF-α, IL-12, IL-4, IL-6, IL-8, and IL-10) were determined by a Luminex 200 analyzer...
February 20, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28634856/estrogen-receptor-%C3%AE-gene-polymorphism-and-vascular-complications-in-girls-with-type-1-diabetes-mellitus
#8
Bartosz Słomiński, Jolanta Myśliwska, Monika Ryba-Stanisławowska, Maria Skrzypkowska, Małgorzata Myśliwiec
The effect of estrogens is mediated by activation of estrogen receptors (ERs). Because ER-α gene polymorphisms may exert different effects in childhood, we analyzed the associations between the IVS1 -397T>C (PvuII) polymorphism and systemic inflammatory state, proangiogenic factors, frequency of monocyte subsets, lipid profile, blood pressure, and vascular complications in girls with type 1 diabetes mellitus (DM1). We examined 180 young girls with DM1 and 120 healthy age-matched controls. The analysis concerned PvuII polymorphism of the ER-α gene as well as the levels of serum inflammatory markers (CRP, IL-6, TNF-α), proangiogenic factors (VEGF, angiogenin), 17β-estradiol, values of monocyte subsets (CD14(++)CD16(-) and CD14(+)CD16(+)), lipid profile, and blood pressure...
June 20, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28630095/antibody-dependent-nk-cell-activation-differentially-targets-ebv-infected-cells-in-lytic-cycle-and-bystander-b-lymphocytes-bound-to-viral-antigen-containing-particles
#9
María López-Montañés, Elisenda Alari-Pahissa, Jordi Sintes, José E Martínez-Rodríguez, Aura Muntasell, Miguel López-Botet
NK cells have been reported to respond against EBV-infected B cells in the lytic cycle and to control the viral infection involving IFN-γ secretion. Early reports proposed a role for NK cell Ab-dependent cellular cytotoxicity (ADCC) triggered via FcγR-IIIA (CD16) in the response to EBV. In the current study, we revisited this issue, showing that serum from EBV(+) individuals triggered vigorous NK cell degranulation and cytokine production (i.e., TNF-α and IFN-γ) against EBV-infected cells, enhancing NK cell activation...
June 19, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28623459/blockade-of-cd112r-and-tigit-signaling-sensitizes-human-natural-killer-cell-functions
#10
Feng Xu, Alexander Sunderland, Yue Zhou, Richard D Schulick, Barish H Edil, Yuwen Zhu
Trastuzumab is the first-line drug to treat breast cancer with high Her2 expression. However, many cancers failed to respond, largely due to their resistance to NK cell-triggered antibody-dependent cellular cytotoxicity (ADCC). Poliovirus receptor (PVR)-like molecules are known to be important for lymphocyte functions. We found that all PVR-like receptors are expressed on human NK cells, and only TIGIT is preferentially expressed on the CD16+ NK cell subset. Disrupting the interactions of PVR-like receptors with their ligands on cancer cells regulates NK cell activity...
June 16, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28619539/systemic-immunological-changes-in-patients-with-distinct-clinical-outcomes-during-mycobacterium-tuberculosis-infection
#11
Tatiane Figueiredo Morais-Papini, Jordana Grazziela Alves Coelho-Dos-Reis, Ana Paula Barbosa Wendling, Lis Ribeiro do Vale Antonelli, Pryscilla Fanini Wowk, Vânia Luiza Deperon Bonato, Valéria Maria Augusto, Silvana Elói-Santos, Olindo Assis Martins-Filho, Cláudia Martins Carneiro, Andréa Teixeira-Carvalho
BACKGROUND: The lung lesions in an individual infected with tuberculosis (TB) are surprisingly variable and independent of each other. However, there is no circulating biomarker yet able to segregate patients according to the extent of lung lesions. MATERIALS AND METHODS: In this study, the phenotypic and functional profile of leukocytes of patients with active pulmonary tuberculosis (TB) and controls (CO) were fully scrutinized by immunophenotyping assays and in vitro short-term whole blood culture...
May 26, 2017: Immunobiology
https://www.readbyqxmd.com/read/28615725/transcriptome-analysis-reveals-similarities-between-human-blood-cd3-cd56-bright-cells-and-mouse-cd127-innate-lymphoid-cells
#12
David S J Allan, Ana Sofia Cerdeira, Anuisa Ranjan, Christina L Kirkham, Oscar A Aguilar, Miho Tanaka, Richard W Childs, Cynthia E Dunbar, Jack L Strominger, Hernan D Kopcow, James R Carlyle
For many years, human peripheral blood natural killer (NK) cells have been divided into functionally distinct CD3(-) CD56(bright) CD16(-) and CD3(-) CD56(dim) CD16(+) subsets. Recently, several groups of innate lymphoid cells (ILC), distinct from NK cells in development and function, have been defined in mouse. A signature of genes present in mouse ILC except NK cells, defined by Immunological Genome Project studies, is significantly over-represented in human CD56(bright) cells, by gene set enrichment analysis...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28612637/treatment-options-for-children-and-adolescents-with-inflammatory-bowel-disease-is-granulomonocytapheresis-an-effective-alternative-to-drug-therapy
#13
Tomotaka Tanaka, Takayuki Yamamoto, Koji Sawada, Rodolfo Sacco
Patients with inflammatory bowel diseases (IBD) require life-long medications, which even if effective have the potential to cause adverse effects as additional morbidity factors. In pediatric patients, drug therapy has more serious limitations, including impaired physical and mental development. A non-drug therapeutic option is believed to be depletion of elevated and activated granulocytes and monocytes known to release inflammatory cytokines, like the CD14+CD16+ monocyte phenotype known to release tumor necrosis factor-α...
June 14, 2017: Expert Review of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28611200/dendritic-cell-cytokine-induced-killer-cell-immunotherapy-combined-with-s-1-in-patients-with-advanced-pancreatic-cancer-a-prospective-study
#14
Ni Jiang, Guoliang Qiao, Xiao-Li Wang, Michael A Morse, William R Gwin, Lei Zhou, Yuguang Song, Yanjie Zhao, Feng Chen, Xin-Na Zhou, Lefu Huang, Amy Hobeika, Xin Yi, Xuefeng Xia, Yanfang Guan, Jin Song, Jun Ren, H Kim Lyerly
Purpose: Advanced pancreatic cancer has remained challenging to treat effectively. This study aimed to investigate the clinical effects and safety of immunotherapy with dendritic cells and cytokine induced killer cells (DC-CIK) administered with the chemotherapy (CT) S-1 in this malignancy. <p> Experimental Design: Consecutive patients (n=47) with advanced pancreatic cancer were treated with either DC-CIK + S-1, DC-CIK alone, S-1 alone, or best supportive care.</p> <p> Results: DC-CIK plus S-1 produced significantly longer median OS and PFS (212 and 136 days) compared with DC-CIK (128 and 85 days), CT (141 and 92 days) or supportive care only (52 and 43 days) (P<0...
June 13, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28609832/pembrolizumab-induced-thyroiditis-comprehensive-clinical-review-and-insights-into-underlying-involved-mechanisms
#15
Danae A Delivanis, Michael P Gustafson, Svetlana Bornschlegl, Michele M Merten, Lisa Kottschade, Sarah Withers, Allan B Dietz, Mabel Ryder
Context: Thyroid immune-related adverse events (irAEs) in patients treated with programmed death receptor-1 (PD-1) blockade are increasingly recognized as one of the most common adverse effects. Our aim was to determine the incidence and examine the potential mechanisms of anti-PD-1 induced thyroid irAEs. Design: Single center, retrospective cohort study. Patients and Measurements: We studied 93 patients with advanced cancer (aged 24–82 years; 60% males) who received at least one infusion of pembrolizumab...
May 9, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28605680/surrogate-cd16-expressing-effector-cell-lines-for-determining-the-bioactivity-of-therapeutic-monoclonal-antibodies
#16
Shalom A Gurjar, Jeremy P Derrick, Rebecca J Dearman, Robin Thorpe, Simon Hufton, Ian Kimber, Meenu Wadhwa
Traditional antibody dependent cellular cytotoxicity (ADCC) assays use donor derived natural killer (NK) or peripheral blood mononuclear cells, but donor genetic variability and the technically challenging nature of the assay means that alternative in vitro assay formats are required. We explored the utility of two reporter gene cell lines, the J2 and J9, as surrogate effector cells for ADCC assays. Both express the ADCC relevant Fcγ receptor CD16, crosslinking of which leads to firefly luciferase expression...
June 9, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28596372/human-blood-monocyte-subsets-a-new-gating-strategy-defined-using-cell-surface-markers-identified-by-mass-cytometry
#17
Graham D Thomas, Anouk A J Hamers, Catherine Nakao, Paola Marcovecchio, Angela M Taylor, Chantel McSkimming, Anh Tram Nguyen, Coleen A McNamara, Catherine C Hedrick
OBJECTIVE: Human monocyte subsets are defined as classical (CD14(++)CD16(-)), intermediate (CD14(++)CD16(+)), and nonclassical (CD14(+)CD16(+)). Alterations in monocyte subset frequencies are associated with clinical outcomes, including cardiovascular disease, in which circulating intermediate monocytes independently predict cardiovascular events. However, delineating mechanisms of monocyte function is hampered by inconsistent results among studies. APPROACH AND RESULTS: We use cytometry by time-of-flight mass cytometry to profile human monocytes using a panel of 36 cell surface markers...
June 8, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28593077/alteration-in-leukocyte-subsets-and-expressions-of-fc%C3%AE-r-and-complement-receptors-among-female-ragpickers-in-eastern-india
#18
Nandan K Mondal, Shabana Siddique, Madhuchanda Banerjee, Sanghita Roychoudhury, Sayali Mukherjee, Mark S Slaughter, Twisha Lahiri, Manas R Ray
BACKGROUND: There are a million ragpickers in India who gather and trade recyclable municipal solid wastes materials for a living. The objective of this study was to examine whether their occupation adversely affects their immunity. METHODS: Seventy-four women ragpickers (median age, 30 years) and 65 age-matched control housemaids were enrolled. Flow cytometry was used to measure leukocyte subsets, and leukocyte expressions of Fcγ receptor I (CD64), FcγRIII (CD16), complement receptor 1 (CD35) and CR3 (CD11b/CD18), and CD14...
June 2017: Safety and Health At Work
https://www.readbyqxmd.com/read/28585414/tissue-factor-variants-induce-monocyte-transformation-and-transdifferentiation-into-endothelial-cell-like-cells
#19
G Arderiu, S Espinosa, E Peña, J Crespo, R Aledo, V Y Bogdanov, L Badimon
BACKGROUND: Monocytes (Mo) increase neovascularization by releasing proangiogenic mediators and/or transdifferentiating into endothelial cell-like (ECL). Recently, we have reported that Mo-microvascular endothelial cells (mECs) crosstalk induces mEC-tissue factor (TF) expression and promotes angiogenesis. However, the effect of TF on Mo remains unknown. OBJECTIVE: Here, we analyzed whether TF might exert angiogenic effects by inducing transdifferentiation of Mo...
June 6, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28584852/immunological-predictors-of-nonresponse-to-directly-acting-antiviral-therapy-in-patients-with-chronic-hepatitis-c-and-decompensated-cirrhosis
#20
Kate Childs, Elliot Merritt, Aisling Considine, Alberto Sanchez-Fueyo, Kosh Agarwal, Marc Martinez-Llordella, Ivana Carey
BACKGROUND: Sustained virological response rates (SVRs) to directly acting antiviral (DAA) therapy for hepatitis C virus (HCV) are lower in decompensated cirrhosis. Markers of innate immunity predict nonresponse to interferon-based HCV treatment; however, whether they are associated with the response to DAAs in patients with decompensation is not known. METHODS: Information on demographics, adherence, viral kinetics, and resistance were gathered prospectively from a cohort with decompensated cirrhosis treated with 12 weeks of DAAs...
2017: Open Forum Infectious Diseases
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