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https://www.readbyqxmd.com/read/29345061/monocyte-subsets-exhibit-transcriptional-plasticity-and-a-shared-response-to-interferon-in-siv-infected-rhesus-macaques
#1
Brian T Nowlin, John Wang, Jamie L Schafer, Patrick Autissier, Tricia H Burdo, Kenneth C Williams
The progression to AIDS is influenced by changes in the biology of heterogeneous monocyte subsets. Classical (CD14++CD16-), intermediate (CD14++CD16+), and nonclassical (CD14+CD16++) monocytes may represent progressive stages of monocyte maturation or disparate myeloid lineages with different turnover rates and function. To investigate the relationship between monocyte subsets and the response to SIV infection, we performed microarray analysis of monocyte subsets in rhesus macaques at three time points: prior to SIV infection, 26 days postinfection, and necropsy with AIDS...
January 2018: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/29342200/inhibiting-tgf-beta-signaling-preserves-the-function-of-highly-activated-in-vitro-expanded-natural-killer-cells-in-aml-and-colon-cancer-models
#2
Folashade Otegbeye, Evelyn Ojo, Stephen Moreton, Nathan Mackowski, Dean A Lee, Marcos de Lima, David N Wald
Natural killer cells harnessed from healthy individuals can be expanded ex vivo using various platforms to produce large doses for adoptive transfer into cancer patients. During such expansion, NK cells are increasingly activated and more efficient at killing cancer cells. Adoptive transfer however introduces these activated cells into a highly immunosuppressive tumor microenvironment mediated in part by excessive transforming growth factor beta (TGF-beta) from both cancer cells and their surrounding stroma...
2018: PloS One
https://www.readbyqxmd.com/read/29341339/immunomodulation-by-therapeutic-mesenchymal-stromal-cells-msc-is-triggered-through-phagocytosis-of-msc-by-monocytic-cells
#3
Samantha F H de Witte, Franka Luk, Jesus M Sierra Parraga, Madhu Gargesha, Ana Merino, Sander S Korevaar, Anusha S Shankar, Lisa O'Flynn, Steve J Elliman, Debashish Roy, Michiel G H Betjes, Philip N Newsome, Carla C Baan, Martin J Hoogduijn
Mesenchymal stem or stromal cells (MSC) are under investigation as a potential immunotherapy. MSC are usually administered via intravenous infusion, after which they are trapped in the lungs and die and disappear within a day. The fate of MSC after their disappearance from the lungs is unknown and it is unclear how MSC realize their immunomodulatory effects in their short lifespan. We examined immunological mechanisms determining the fate of infused MSC and the immunomodulatory response associated with it. Tracking viable and dead human umbilical cord MSC (ucMSC) in mice using Qtracker beads (contained in viable cells) and Hoechst33342 (staining all cells) revealed that viable ucMSC were present in the lungs immediately after infusion...
January 17, 2018: Stem Cells
https://www.readbyqxmd.com/read/29328024/endometrial-polyps-in-women-of-reproductive-age-clinical-and-pathogene-tic-variations
#4
N Kosei, N Zakharenko, D Herman
The aim of the study was to study the relationship between the morphofunctional characteristics of the endometrium, hormonal homeostasis and microbiocenosis of the reproductive system in patients with endometrial polyps. The study involved 130 patients aged 18-35 years: 34 patients with endometrial polyps, 30 patients with micropolyps, 36 patients with endometrial polyps and micropolyps, 30 healthy women of the control group. Hysteroscopy was performed for women who had been suspected for endometrial polyps and who had infertility or repeated recurrent miscarriages...
December 2017: Georgian Medical News
https://www.readbyqxmd.com/read/29327714/a-comprehensive-flow-cytometry-based-immunophenotypic-characterization-of-burkitt-like-lymphoma-with-11q-aberration
#5
Grzegorz Rymkiewicz, Beata Grygalewicz, Magdalena Chechlinska, Katarzyna Blachnio, Zbigniew Bystydzienski, Joanna Romejko-Jarosinska, Renata Woroniecka, Michalina Zajdel, Katarzyna Domanska-Czyz, David Martin-Garcia, Ferran Nadeu, Pawel Swoboda, Jolanta Rygier, Barbara Pienkowska-Grela, Jan Konrad Siwicki, Monika Prochorec-Sobieszek, Itziar Salaverria, Reiner Siebert, Jan Walewski
We previously described a subset of MYC translocation-negative aggressive B-cell lymphomas resembling Burkitt lymphoma, characterized by proximal gains and distal losses in chromosome 11. In the 2016 WHO classification, these MYC-negative lymphomas were recognized as a new provisional entity, 'Burkitt-like lymphoma with 11q aberration'. Here we present an immunophenotype analysis of Burkitt-like lymphomas with 11q aberration. Cells were acquired by fine needle aspiration biopsy from 10 young adult patients, 80% of whom presented recurrence-free 5-year survival...
January 12, 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29313268/trajectories-of-circulating-monocyte-subsets-after-st-elevation-myocardial-infarction-during-hospitalization-latent-class-growth-modeling-for-high-risk-patient-identification
#6
Shan Zeng, Li-Fang Yan, Yan-Wei Luo, Xin-Lin Liu, Jun-Xiang Liu, Zhao-Zeng Guo, Zhong-Wei Xu, Yu-Ming Li, Wen-Jie Ji, Xin Zhou
It remains unclear if the developmental trajectories of a specific inflammatory biomarker during the acute phase of ST-elevation myocardial infarction (STEMI) provide outcome prediction. By applying latent class growth modeling (LCGM), we identified three distinctive trajectories of CD14++CD16+ monocytes using serial flow cytometry assays from day 1 to day 7 of symptom onset in 96 de novo STEMI patients underwent primary percutaneous coronary intervention. Membership in the high-hump-shaped trajectory (16.8%) independently predicted adverse cardiovascular outcomes during a median follow-up of 2...
January 8, 2018: Journal of Cardiovascular Translational Research
https://www.readbyqxmd.com/read/29313232/activation-of-nk-cells-in-mixed-cultures-of-wharton-s-jelly-mesenchymal-stromal-cells-and-peripheral-blood-lymphocytes
#7
E V Svirshchevskaya, A M Poltavtsev, G Zh Os'mak, R A Poltavtseva
Mesenchymal stromal cells possess immunosuppressive properties that might be used for the therapy of inflammatory diseases of various geneses. The effects of mesenchymal stromal cells depend on their lifetime in the recipient tissues. During heterologous transplantation, mesenchymal stromal cells are eliminated by NK cells. We studied NK cell formation in mixed cultures of Wharton's jelly mesenchymal stromal cells and peripheral blood lymphocytes from an autologous donor. Lymphocytes were activated by a mitogen or IL-2...
January 8, 2018: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/29313111/long-term-swimming-training-modifies-acute-immune-cell-response-to-a-high-intensity-session
#8
José P Morgado, Cristina P Monteiro, Catarina N Matias, Joana F Reis, Júlia Teles, Maria José Laires, Francisco Alves
PURPOSE: Long-term training influence on athletes' immune cell response to acute exercise has been poorly studied, despite the complexity of both chronic and acute adaptations induced by training. The purpose of the study is to study the influence of a 4-month swimming training cycle on the immune cell response to a high-intensity training session, during 24 h of recovery, considering sex, maturity, and age group. METHODS: Forty-three swimmers (16 females, 14.4 ± 1...
January 8, 2018: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29305709/influence-of-physical-activity-on-the-immune-system-in-breast-cancer-patients-during-chemotherapy
#9
Thorsten Schmidt, Walter Jonat, Daniela Wesch, Hans-Heinrich Oberg, Sabine Adam-Klages, Lisa Keller, Christoph Röcken, Christoph Mundhenke
PURPOSE: Physical activity can impact the immune system in different ways, e.g. by alteration of the humoral and cellular immune response. Physical activity at medium intensity enhances numbers of cytotoxic T cells, NK cells and macrophages in healthy people. The aim of this study was to compare the effects of endurance and resistance training on the immune system in breast cancer patients during adjuvant chemotherapy. METHODS: In a prospective, controlled and randomized intervention exploratory trial, 12-week supervised endurance or resistance training were compared with usual care twice a week...
January 5, 2018: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/29304229/cd16-macrophages-mediate-fibrosis-in-inflammatory-bowel-disease
#10
Pedro Salvador, Dulce Carolina Macías-Ceja, Laura Gisbert-Ferrándiz, Carlos Hernández, David Bernardo, Rafael Alós, Francisco Navarro-Vicente, Juan Vicente Esplugues, Dolores Ortiz-Masiá, Maria Dolores Barrachina, Sara Calatayud
Background and aims: Fibrosis is a common complication of Crohn's disease, and is related with dysregulated tissular repair following inflammation, in which macrophages play a central role. We have previously observed that STAT6-/- mice present delayed mucosal recovery after TNBS-induced colitis due to a deficiency in reparatory IL4/STAT6-dependent M2 macrophages, which can be reverted by the exogenous transfer of this cell type. In the present study we aimed to analyze the role of STAT6-dependent macrophages in intestinal fibrosis...
January 3, 2018: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/29296975/cell-surface-c-type-lectin-like-receptor-clec-1-dampens-dendritic-cell-activation-and-downstream-th17-responses
#11
Maria Dolores Lopez Robles, Annaick Pallier, Virginie Huchet, Laetitia Le Texier, Severine Remy, Cecile Braudeau, Laurence Delbos, Aurelie Moreau, Cedric Louvet, Carole Brosseau, Pierre-Joseph Royer, Antoine Magnan, Franck Halary, Regis Josien, Maria-Cristina Cuturi, Ignacio Anegon, Elise Chiffoleau
Dendritic cells (DCs) represent essential antigen-presenting cells that are critical for linking innate and adaptive immunity, and influencing T-cell responses. Among pattern recognition receptors, DCs express C-type lectin receptors triggered by both exogenous and endogenous ligands, therefore dictating pathogen response, and also shaping T-cell immunity. We previously described in rat, the expression of the orphan C-type lectin-like receptor-1 (CLEC-1) by DCs and demonstrated in vitro its inhibitory role in downstream T helper 17 (Th17) activation...
March 28, 2017: Blood Advances
https://www.readbyqxmd.com/read/29296921/interleukins-12-and-15-induce-cytotoxicity-and-early-nk-cell-differentiation-in-type-3-innate-lymphoid-cells
#12
Ana Raykova, Paolo Carrega, Frank M Lehmann, Robert Ivanek, Vanessa Landtwing, Isaak Quast, Jan D Lünemann, Daniela Finke, Guido Ferlazzo, Obinna Chijioke, Christian Münz
Type 3 innate lymphoid cells (ILC3s) fulfill protective functions at mucosal surfaces via cytokine production. Although their plasticity to become ILC1s, the innate counterparts of type 1 helper T cells, has been described previously, we report that they can differentiate into cytotoxic lymphocytes with many characteristics of early differentiated natural killer (NK) cells. This transition is promoted by the proinflammatory cytokines interleukin 12 (IL-12) and IL-15, and correlates with expression of the master transcription factor of cytotoxicity, eomesodermin (Eomes)...
December 26, 2017: Blood Advances
https://www.readbyqxmd.com/read/29286149/inhibition-effect-of-triptolide-on-human-epithelial-ovarian-cancer-via-adjusting-cellular-immunity-and-angiogenesis
#13
Hui Hu, Genhua Huang, Haibin Wang, Xiaoli Li, Xiaobing Wang, Ying Feng, Buzhen Tan, Tingtao Chen
Chemotherapy resistance of advanced ovarian cancers is responsible for death of most cancer patients, so it is necessary to seek safe and effective natural ingredients to lower the chemotherapy resistance of ovarian cancer. In the present study, we studied the anticancer effects of triptolide (TPL) and TPL + cisplatin (DDP) in vitro and in vivo using SKOV3/DDP cell line and a mouse model. In vitro results showed that TPL and TPL + DDP inhibited cellular invasion and migration of SKOV3/DDP cells (P<0...
December 15, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29284682/glucocorticoids-induce-differentiation-of-monocytes-towards-macrophages-that-share-functional-and-phenotypical-aspects-with-erythroblastic-island-macrophages
#14
Esther Heideveld, Lea A Hampton-O'Neil, Stephen J Cross, Floris P J van Alphen, Maartje van den Biggelaar, Ashley M Toye, Emile van den Akker
The classical central macrophage found in erythroblastic islands plays an important role in erythroblast differentiation, proliferation and enucleation in the bone marrow. Convenient human in vitro models to facilitate the study of erythroid-macrophage interactions are desired. Recently, we demonstrated that cultured monocytes/macrophages enhance in vitro erythropoiesis by supporting hematopoietic stem cell survival. Here, we describe that these specific macrophages also support erythropoiesis. Human monocytes cultured in serum-free media supplemented with stem cell factor, erythropoietin, lipids and dexamethasone differentiate towards macrophages expressing CD16, CD163, CD169, CD206, CXCR4 and the phagocytic TAM-receptor family...
December 28, 2017: Haematologica
https://www.readbyqxmd.com/read/29284508/inflammatory-dysregulation-of-monocytes-in-pediatric-patients-with-obsessive-compulsive-disorder
#15
Natalia Rodríguez, Astrid Morer, E Azucena González-Navarro, Carles Serra-Pages, Daniel Boloc, Teresa Torres, Susana García-Cerro, Sergi Mas, Patricia Gassó, Luisa Lázaro
BACKGROUND: Although the exact etiology of obsessive-compulsive disorder (OCD) is unknown, there is growing evidence of a role for immune dysregulation in the pathophysiology of the disease, especially in the innate immune system including the microglia. To test this hypothesis, we studied inflammatory markers in monocytes from pediatric patients with OCD and from healthy controls. METHODS: We determined the percentages of total monocytes, CD16+ monocytes, and classical (CD14highCD16-), intermediate (CD14highCD16low), and non-classical (CD14lowCD16high) monocyte subsets in 102 patients with early-onset OCD and in 47 healthy controls...
December 28, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29260741/-lymphocyte-subpopulations-levels-of-interferon-and-expression-of-their-receptors-in-patients-with-chronic-hepatitis-b-and-c-correlation-with-the-species-of-viruses-and-the-degree-of-liver-fibrosis
#16
O V Kalyuzhin, Zh B Ponezheva, I V Semenova, O N Khokhlova, L V Serebrovskaya, T S Guseva, O V Parshina, V V Maleev
AIM: To determine whether there is a correlation of the composition of circulating lymphocyte subpopulations, the serum concentrations of interferon (IFN)-α, IFN-γ, and IFN-λ3, and the lymphocyte expression of types I and II IFN receptors with the species of a disease pathogen and the degree of liver fibrosis (LF) in patients with chronic hepatitis B (CHB) and in those with chronic hepatitis C (CHC). SUBJECTS AND METHODS: The investigation enrolled 44 patients with CHC, 9 patients with CHB, and 13 clinically healthy donors...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/29249938/peli1-contributions-in-microglial-activation-neuroinflammatory-responses-and-neurological-deficits-following-experimental-subarachnoid-hemorrhage
#17
Xue-Ping Huang, Jian-Hua Peng, Jin-Wei Pang, Xiao-Cui Tian, Xin-Shen Li, Yue Wu, Yong Li, Yong Jiang, Xiao-Chuan Sun
Early brain injury (EBI) following subarachnoid hemorrhage (SAH) is closely associated with neuroinflammation. Microglial activation is an early event that leads to neuroinflammation after SAH. Peli1 is an E3 ubiquitin ligase that mediates the induction of pro-inflammatory cytokines in microglia. Here we report Peli1 contributions in SAH mediated brain pathology. An SAH model was induced by endovascular perforation in adult male C57BL/6J mice. Peli1 was markedly induced in mice brains in a time-dependent manner and was predominantly expressed in CD16/32-positive microglia after SAH...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/29248573/bisphenol-a-exposure-induces-increased-microglia-and-microglial-related-factors-in-the-murine-embryonic-dorsal-telencephalon-and-hypothalamus
#18
Mifumi Takahashi, Munekazu Komada, Ken Miyazawa, Shigemi Goto, Yayoi Ikeda
Bisphenol A (BPA) is a widely used compound in the food packaging industry. Prenatal exposure to BPA induces histological abnormalities in the neocortex and hypothalamus in association with abnormal behaviors. Yet, the molecular and cellular neurodevelopmental toxicological mechanisms of BPA are incompletely characterized on neuroinflammatory-related endopoints. To evaluate the neurodevelopmental effects of BPA exposure in mouse embryos, we examined microglial numbers as well as the expression of microglial-related factors in the E15...
December 14, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/29247515/intrahepatic-and-peripheral-blood-phenotypes-of-nk-and-t-cells-differential-surface-expression-of-kir-receptors
#19
Ariel Podhorzer, Andrés Machicote, Santiago Belen, Leandro Lauferman, Oscar Imventarza, Silvina Montal, Sebastián Marciano, Omar Galdame, Luis G Podesta, Leonardo Fainboim
Deep characterization of the frequencies, phenotypes and functionalities of liver and peripheral blood NK, NKT and T cells from healthy individuals is an essential step to further interpret changes in liver diseases. These data indicate that CCR7, a chemokine essential for cell migration through lymphoid organs, is almost absent in liver NK and T cells. CD56bright NK cells, which represent half of liver NK cells, showed lower expression of the inhibitory molecule NKG2A and an increased frequency of the activatory marker NKp44...
December 16, 2017: Immunology
https://www.readbyqxmd.com/read/29246797/il-1%C3%AE-production-by-intermediate-monocytes-is-associated-with-immunopathology-in-cutaneous-leishmaniasis
#20
Daniela Santos, Taís M Campos, Maíra Saldanha, Sergio C Oliveira, Mauricio Nascimento, Dario S Zamboni, Paulo R Machado, Sérgio Arruda, Phillip Scott, Edgar M Carvalho, Lucas P Carvalho
Cutaneous leishmaniasis due to Leishmania braziliensis infection is an inflammatory disease which skin ulcer development is associated with mononuclear cells infiltrate and high levels of inflammatory cytokines production. Recently, NOD-like receptor family, pyrin domain containing 3 (NLRP3) inflammasome activation and IL-1β production has been associated with increased pathology in murine cutaneous leishmaniasis. We hypothesized that cutaneous leishmaniasis patients have increased expression of NLRP3 leading to high levels of IL-1β production...
December 12, 2017: Journal of Investigative Dermatology
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