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https://www.readbyqxmd.com/read/28534275/sex-bias-in-pathogenesis-of-autoimmune-neuroinflammation-relevance-for-dimethyl-fumarate-immunomodulatory-anti-oxidant-action
#1
Zorica Stojić-Vukanić, Jelena Kotur-Stevuljević, Mirjana Nacka-Aleksić, Duško Kosec, Ivana Vujnović, Ivan Pilipović, Mirjana Dimitrijević, Gordana Leposavić
In the present study, upon showing sexual dimorphism in dimethyl fumarate (DMF) efficacy to moderate the clinical severity of experimental autoimmune encephalomyelitis (EAE) in Dark Agouti rats, cellular and molecular substrate of this dimorphism was explored. In rats of both sexes, DMF administration from the day of immunization attenuated EAE severity, but this effect was more prominent in males leading to loss of the sexual dimorphism observed in vehicle-administered controls. Consistently, in male rats, DMF was more efficient in diminishing the number of CD4+ T lymphocytes infiltrating spinal cord (SC) and their reactivation, the number of IL-17+ T lymphocytes and particularly cellularity of their highly pathogenic IFN-γ+GM-CSF+IL-17+ subset...
May 22, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28529608/the-monocyte-to-red-blood-cell-count-ratio-is-a-strong-predictor-of-postoperative-survival-in-colorectal-cancer-patients-the-fujian-prospective-investigation-of-cancer-fiesta-study
#2
Feng Peng, Dan Hu, Xiandong Lin, Gang Chen, Binying Liang, Chao Li, Yan Chen, Zhaolei Cui, Hejun Zhang, Jixiu Lin, Xiongwei Zheng, Wenquan Niu
Background and Aims: We sought to evaluate the prognosis of preoperative blood routine parameters for the mortality of colorectal cancer patients after surgery by eliciting a subset of data from the ongoing Fujian prospective investigation of cancer (FIESTA) study. Methods: 1318 colorectal cancer patients with completed survival data were enrolled between 2000 and 2008. Effect-size estimates are expressed as hazard ratio (HR) and 95% confidence interval (CI). Results: The median follow-up time was 58.6 months...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28528521/myeloid-populations-in-systemic-autoimmune-diseases
#3
REVIEW
María Morell, Nieves Varela, Concepción Marañón
Systemic autoimmune diseases (SADs) encompass a wide spectrum of clinical signs as a reflection of their complex physiopathology. A variety of mechanisms related with the innate immune system are in the origin of the loss of self-tolerance in these diseases, and for most of them, the myeloid leukocytes are key actors. Monocytes, macrophages, dendritic cells, and neutrophils are first-line immune effectors located in the interface between innate and adaptive immunity. They are crucial in the organization of the local and systemic responses to damage-associated molecular patterns (DAMPs) and determine the intensity, orientation, and duration of the local immune response through the expression of chemokines, costimulatory or protolerogenic factors...
May 20, 2017: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/28514690/genomic-characterization-of-murine-monocytes-reveals-c-ebp%C3%AE-transcription-factor-dependence-of-ly6c-cells
#4
Alexander Mildner, Jörg Schönheit, Amir Giladi, Eyal David, David Lara-Astiaso, Erika Lorenzo-Vivas, Franziska Paul, Louise Chappell-Maor, Josef Priller, Achim Leutz, Ido Amit, Steffen Jung
Monocytes are circulating, short-lived mononuclear phagocytes, which in mice and man comprise two main subpopulations. Murine Ly6C(+) monocytes display developmental plasticity and are recruited to complement tissue-resident macrophages and dendritic cells on demand. Murine vascular Ly6C(-) monocytes patrol the endothelium, act as scavengers, and support vessel wall repair. Here we characterized population and single cell transcriptomes, as well as enhancer and promoter landscapes of the murine monocyte compartment...
May 16, 2017: Immunity
https://www.readbyqxmd.com/read/28514689/identification-of-a-human-clonogenic-progenitor-with-strict-monocyte-differentiation-potential-a-counterpart-of-mouse-cmops
#5
Shunsuke Kawamura, Nobuyuki Onai, Fuyuki Miya, Taku Sato, Tatsuhiko Tsunoda, Kazutaka Kurabayashi, Satoshi Yotsumoto, Shoko Kuroda, Katsuto Takenaka, Koichi Akashi, Toshiaki Ohteki
Monocytes give rise to macrophages and dendritic cells (DCs) under steady-state and inflammatory conditions, thereby contributing to host defense and tissue pathology. A common monocyte progenitor (cMoP) that is strictly committed to the monocyte lineage has been recently identified in mice. Here, we identified human cMoPs as a CLEC12A(hi)CD64(hi) subpopulation of conventional granulocyte-monocyte progenitors (cGMPs) in umbilical cord blood and in bone marrow. Human cMoPs gave rise to monocyte subsets without showing any potential for differentiating into myeloid or lymphoid cells...
May 16, 2017: Immunity
https://www.readbyqxmd.com/read/28514680/understanding-spontaneous-conversion-the-case-of-the-ly6c-monocyte
#6
Sara Polletti, Gioacchino Natoli
Mouse blood monocytes include two main subsets usually discriminated by the expression of the Ly6C surface marker. The study by Mildner et al. (2017) in this issue of Immunity clarifies the transcriptional circuits controlling the generation of Ly6C(-) cells from their obligate precursors, the Ly6C(+) monocytes.
May 16, 2017: Immunity
https://www.readbyqxmd.com/read/28507810/tie-2-expressing-monocytes-in-human-cancers
#7
Riccardo Turrini, Angélique Pabois, Ioannis Xenarios, George Coukos, Jean-François Delaloye, Marie-Agnès Doucey
Tumor-associated macrophages (TAM) are well known as a key player in the tumor microenvironment, which support cancer progression. More recently, a lineage of monocytes characterized by the expression of the TIE-2/Tek angiopoietin receptor identified a subset of circulating and tumor-associated monocytes endowed with proangiogenic activity. TIE-2 expressing monocytes (TEM) were found both in humans and mice. Here, we review the phenotypes and functions of TEM reported so far in human cancer and their potential use as markers of cancer progression and metastasis...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28507549/human-lung-mononuclear-phagocytes-in-health-and-disease
#8
REVIEW
Faezzah Baharom, Gregory Rankin, Anders Blomberg, Anna Smed-Sörensen
The lungs are vulnerable to attack by respiratory insults such as toxins, allergens, and pathogens, given their continuous exposure to the air we breathe. Our immune system has evolved to provide protection against an array of potential threats without causing collateral damage to the lung tissue. In order to swiftly detect invading pathogens, monocytes, macrophages, and dendritic cells (DCs)-together termed mononuclear phagocytes (MNPs)-line the respiratory tract with the key task of surveying the lung microenvironment in order to discriminate between harmless and harmful antigens and initiate immune responses when necessary...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28504838/human-innate-lymphoid-cells-ilcs-in-filarial-infections
#9
Sandra Bonne-Année, Thomas B Nutman
Filarial infections are characteristically chronic and can cause debilitating diseases governed by parasite-induced innate and adaptive immune responses. Filarial parasites traverse or establish niches in the skin (migrating infective larvae), in non-mucosal tissues (adult parasite niche) and in the blood or skin (circulating microfilariae) where they intersect with the host immune response. While several studies have demonstrated that filarial parasites and their antigens can modulate myeloid cells (monocyte, macrophage, and dendritic cell subsets), T- and B-lymphocytes and skin resident cell populations the role of innate lymphoid cells during filarial infections has only recently emerged...
May 15, 2017: Parasite Immunology
https://www.readbyqxmd.com/read/28498568/reconstitution-of-immune-cell-populations-in-multiple-sclerosis-patients-after-autologous-stem-cell-transplantation
#10
REVIEW
Fredrick G Karnell, Dongxia Lin, Samantha Motley, Thomas Duhen, Noha Lim, Daniel J Campbell, Laurence A Turka, Holden T Maecker, Kristina M Harris
Multiple sclerosis is an inflammatory T-cell-mediated autoimmune disease. In a phase II clinical trial, high-dose immunosuppressive therapy combined with autologous CD34(+) hematopoietic stem cell transplant resulted in 69.2% of subjects remaining disease-free without evidence of relapse, loss of neurological function or new MRI lesions through year 5 post-treatment. A combination of CyTOF mass cytometry and multi-parameter flow cytometry was used to explore the reconstitution kinetics of immune cell subsets in the periphery post HSCT and the impact of treatment on the phenotype of circulating T cells in this study population...
May 12, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28497578/effector-and-regulatory-dendritic-cells-display-distinct-patterns-of-mirna-expression
#11
Vincent Lombardi, Sonia Luce, Hélène Moussu, Lise Morizur, Claire Gueguen, Catherine Neukirch, Sylvie Chollet-Martin, Laurent Mascarell, Michel Aubier, Véronique Baron-Bodo, Philippe Moingeon
INTRODUCTION: MicroRNAs (miRNAs) contribute to the regulation of dendritic cell (DC) polarization, thereby influencing the balance of adaptive immune responses. Herein, we studied the expression of miRNAs in polarized DCs and analyzed whether expression of these miRNAs could be associated with allergic rhinitis and allergen immunotherapy (AIT) outcome. METHOD: Using specific culture conditions, we differentiated immature human monocyte-derived DCs into DC1, DC2, and DCreg subsets (supporting the differentiation of TH 1, TH 2 or regulatory T cells, respectively)...
May 12, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28496351/fatigue-in-patients-with-inflammatory-bowel-disease-is-associated-with-distinct-differences-in-immune-parameters
#12
Lauran Vogelaar, Colin de Haar, Bas Rj Aerts, Maikel P Peppelenbosch, Reinier Timman, Bettina E Hanssen, C Janneke van der Woude
BACKGROUND: Although it is well recognized that fatigue is an important problem in many of the quiescent inflammatory bowel disease (IBD) patients, it is unknown whether the immune status is different in fatigued versus non-fatigued patients. In this study, we contrasted various characteristics of the immune system in fatigued against non-fatigued patients with IBD in clinical remission. PATIENTS AND METHODS: Patients with IBD in clinical remission were phenotyped according to the Montreal classification, and the checklist individual strength-fatigue (CIS-fatigue) was used to assess fatigue (CIS-fatigue ≥ 35)...
2017: Clinical and Experimental Gastroenterology
https://www.readbyqxmd.com/read/28492701/short-term-intensive-training-attenuates-the-exercise-induced-interaction-of-mono-1-2-cells-and-platelets-after-coronary-bypass-in-cardiac-patients
#13
Shu-Chun Huang, Mei-Kuen Wong, Pyng-Jing Lin, Feng-Chun Tsai, Jaw-Ji Chu, Meng-Yu Wu, Tieh-Cheng Fu, Jong-Shyan Wang
The interaction between platelets and monocytes plays a critical role in the pathogenesis and progression of cardiovascular diseases. This study investigated how short-term intensive training (SIT) influences monocyte subset characteristics and exercise-induced monocyte and platelet aggregates (MPAs) following elective coronary bypass (CABG) in cardiac patients. Forty-nine patients hospitalised for CABG were randomised into SIT (N=26) and conventional training (CT, N=23) groups. The SIT subjects underwent supervised aerobic training at 80~120 % of the ventilatory anaerobic threshold based on sub-maximal exercise tests performed 7 days post-CABG for 20 sessions with two sessions/day and 30 min/session, which were completed within four weeks after surgery...
May 11, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28492698/il-33-stimulates-the-release-of-procoagulant-microvesicles-from-human-monocytes-and-differentially-increases-tissue-factor-in-human-monocyte-subsets
#14
Stefan Stojkovic, Åsa Thulin, Lena Hell, Barbara Thaler, Sabine Rauscher, Johanna Baumgartner, Marion Gröger, Cihan Ay, Svitlana Demyanets, Christoph Neumayer, Ihor Huk, Andreas Spittler, Kurt Huber, Johann Wojta, Agneta Siegbahn, Mikael Åberg
Monocytes and monocyte-derived microvesicles (MVs) are the main source of circulating tissue factor (TF). Increased monocyte TF expression and increased circulating levels of procoagulant MVs contribute to the formation of a prothrombotic state in patients with cardiovascular disease. Interleukin (IL)-33 is a pro-inflammatory cytokine involved in atherosclerosis and other inflammatory diseases, but its role in regulating thrombosis is still unclear. The aim of the present study was to investigate the effects of IL-33 on the procoagulant properties of human monocytes and monocyte-derived MVs...
May 11, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28490840/toll-like-receptor-9-promotes-survival-in-serca2a-ko-heart-failure-mice
#15
Yangchen Dhondup, Ivar Sjaastad, Øystein Sandanger, Jan Magnus Aronsen, Muhammad Shakil Ahmed, Håvard Attramadal, Alexandra Vanessa Finsen, Lili Zhang, Trine Ranheim, Katrine Alfsnes, Pål Aukrust, Geir Christensen, Arne Yndestad, Leif Erik Vinge
Aim. Inflammation is important in heart failure (HF). The role of the immune receptor toll-like receptor 9 (TLR9) in HF is not understood and not investigated in diastolic HF. We investigated the role of TLR9 in a murine diastolic HF model caused by cardiomyocyte SERCA2a excision. Methods and Results. We crossed SERCA2a KO and TLR9 KO mice to generate four mouse lines. Tamoxifen-induced cardiomyocyte SERCA2a gene excision was carried out in mice, causing diastolic HF. After 7.6 weeks, cardiac functions and dimensions were analyzed by echocardiography and heart tissues were processed...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28488248/response-to-treatment-with-tnf%C3%AE-inhibitors-in-rheumatoid-arthritis-is-associated-with-high-levels-of-gm-csf-and-gm-csf-t-lymphocytes
#16
Jonas Bystrom, Felix I Clanchy, Taher E Taher, Mohammed M Al-Bogami, Hawzheen A Muhammad, Saba Alzabin, Pamela Mangat, Ali S Jawad, Richard O Williams, Rizgar A Mageed
Biologic TNFα inhibitors are a mainstay treatment option for patients with rheumatoid arthritis (RA) refractory to other treatment options. However, many patients either do not respond or relapse after initially responding to these agents. This study was carried out to identify biomarkers that can distinguish responder from non-responder patients before the initiation of treatment. The level of cytokines in plasma and those produced by ex vivo T cells, B cells and monocytes in 97 RA patients treated with biologic TNFα inhibitors was measured before treatment and after 1 and 3 months of treatment by multiplex analyses...
May 9, 2017: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/28482051/biomarkers-of-chronic-acrolein-inhalation-exposure-in-mice-implications-for-tobacco-product-induced-toxicity
#17
Daniel J Conklin, Marina V Malovichko, Iris Zeller, Trinath P Das, Tatiana V Krivokhizhina, Blake H Lynch, Pawel Lorkiewicz, Abhinav Agarwal, Nalinie Wickramasinghe, Petra Haberzettl, Srinivas D Sithu, Jasmit Shah, Timothy E O'Toole, Shesh N Rai, Aruni Bhatnagar, Sanjay Srivastava
Exposure to tobacco smoke, which contains several harmful and potentially harmful constituents such as acrolein increases cardiovascular disease (CVD) risk. Although high acrolein levels induce pervasive cardiovascular injury, the effects of low-level exposure remain unknown and sensitive biomarkers of acrolein toxicity have not been identified. Identification of such biomarkers is essential to assess the toxicity of acrolein present at low levels in the ambient air or in new tobacco products such as e-cigarettes...
May 8, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28480647/increased-circulating-t-lymphocytes-expressing-hla-dr-in-kidney-transplant-recipients-with-microcirculation-inflammation
#18
Hee Yeon Jung, Yong Jin Kim, Ji Young Choi, Jang Hee Cho, Sun Hee Park, Yong Lim Kim, Hyung Kee Kim, Seung Huh, Dong Il Won, Chan Duck Kim
We consecutively enrolled 82 kidney transplant recipients (KTRs) with stable renal function and 24 KTRs who underwent indication biopsy to compare the histological grading of renal allografts with the activity of circulating T lymphocyte subsets and monocytes determined by flow cytometry, which were obtained at 2 weeks after kidney transplantation (KT) and at the time of indication biopsy, respectively. The sum of the scores of glomerulitis (g) + peritubular capillaritis (ptc), inflammation (i) + tubulitis (t), interstitial fibrosis (ci) + tubular atrophy (ct), and fibrointimal thickening (cv) + arteriolar hyaline thickening (ah) was used to assign a histological grade to the renal allograft samples...
June 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28477078/memory-b-cells-and-response-to-abatacept-in-rheumatoid-arthritis
#19
Pierre Gazeau, Guillermo Carvajal Alegria, Valérie Devauchelle-Pensec, Christophe Jamin, Julie Lemerle, Boutahar Bendaoud, Wesley H Brooks, Alain Saraux, Divi Cornec, Yves Renaudineau
Abatacept is a fusion protein (CTLA4-Ig) and therapeutic molecule labeled for the treatment of rheumatoid arthritis (RA). Abatacept acts both by disrupting the CD28-mediated activation of T cells and by interacting with CD80/CD86 molecules present on antigen presenting cells such as monocytes and memory B cells. Accordingly and to evaluate clinical and biological parameters associated with response to abatacept, a retrospective monocentric study was conducted in 43 patients with RA, and the clinical response was evaluated at 6 months according to EULAR response criteria...
May 5, 2017: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/28476406/influence-of-cdx2-and-taqi-gene-variants-on-vitamin-d3-modulated-intracellular-chemokine-positive-t-cell-subsets-in-pulmonary-tuberculosis
#20
Murugesan Harishankar, Paramasivam Selvaraj
PURPOSE: We studied the effect of 1,25(OH)2D3 (vitamin D3) on intracellular chemokine-positive T-cell subsets in whole blood cultures of healthy controls and patients with pulmonary tuberculosis. METHODS: Genotyping was performed by the polymerase chain reaction-restriction fragment length polymorphism method. The regulatory role of the Cdx2 and 3'UTR TaqI gene variants on chemokine-positive T-cell subsets was studied from culture filtrate antigen stimulated with or without vitamin D3 treated whole blood cultures of 60 healthy controls and 50 patients with pulmonary tuberculosis...
May 2, 2017: Clinical Therapeutics
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