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Macrophage GM-CSF

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https://www.readbyqxmd.com/read/29338593/expression-and-role-of-granulocyte-macrophage-colony-stimulating-factor-receptor-gm-csfr-and-granulocyte-colony-stimulating-factor-receptor-g-csfr-on-ph-positive-acute-b-lymphoblastic-leukemia
#1
Yong Wu, Ming Tan, Mei-Ling Chen, Yuan-Zhong Chen
OBJECTIVE: We observed that ph + ALL patients administrated with recombinant human G-CSF (rhG-CSF) after intense chemotherapy have presented a trend of disease relapse. Thus, we aim to thoroughly investigate the expression and role of GM-CSFR and G-CSFR on ph + ALL patients. METHOD: SUP-B15, BALL-1 and primary leukemia cells were used in this study. Transcript levels were analyzed by quantitative PCR while cell viability was measured using a CCK-8 assay...
January 17, 2018: Hematology (Amsterdam, Netherlands)
https://www.readbyqxmd.com/read/29328910/modulation-of-myelopoiesis-progenitors-is-an-integral-component-of-trained-immunity
#2
Ioannis Mitroulis, Klara Ruppova, Baomei Wang, Lan-Sun Chen, Michal Grzybek, Tatyana Grinenko, Anne Eugster, Maria Troullinaki, Alessandra Palladini, Ioannis Kourtzelis, Antonios Chatzigeorgiou, Andreas Schlitzer, Marc Beyer, Leo A B Joosten, Berend Isermann, Mathias Lesche, Andreas Petzold, Kai Simons, Ian Henry, Andreas Dahl, Joachim L Schultze, Ben Wielockx, Nicola Zamboni, Peter Mirtschink, Ünal Coskun, George Hajishengallis, Mihai G Netea, Triantafyllos Chavakis
Trained innate immunity fosters a sustained favorable response of myeloid cells to a secondary challenge, despite their short lifespan in circulation. We thus hypothesized that trained immunity acts via modulation of hematopoietic stem and progenitor cells (HSPCs). Administration of β-glucan (prototypical trained-immunity-inducing agonist) to mice induced expansion of progenitors of the myeloid lineage, which was associated with elevated signaling by innate immune mediators, such as IL-1β and granulocyte-macrophage colony-stimulating factor (GM-CSF), and with adaptations in glucose metabolism and cholesterol biosynthesis...
January 11, 2018: Cell
https://www.readbyqxmd.com/read/29328541/gm-csf-ameliorates-micro-vascular-barrier-integrity-via-pericytes-derived-ang-1-in-wound-healing
#3
Min Yan, Yange Hu, Min Yao, Shisan Bao, Yong Fang
BACKGROUND: Skin wound healing involves complex coordinated interactions of cells, tissues and mediators. Maintaining microvascular barrier integrity is one of the key events for endothelial homeostasis during wound healing. Vasodilation is observed after vasoconstriction, which causes blood vessels to become porous, facilitates leukocyte infiltration and aids angiogenesis at the wound-area, post-injury. Eventually, vessel integrity has to be re-established for vascular maturation. Numerous studies have found that granulocyte macrophage colony-stimulating factor (GM-CSF) accelerates wound healing by inducing recruitment of repair cells into the injury area and releases of cytokines...
January 12, 2018: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/29319160/macrophage-plasticity-polarization-and-function-in-health-and-disease
#4
REVIEW
Abbas Shapouri Moghaddam, Saeed Mohammadian, Hossein Vazini, Mahdi Taghadosi, Seyed-Alireza Esmaeili, Fatemeh Mardani, Bita Seifi, Asadollah Mohammadi, Jalil Tavakol Afshari, Amirhossein Sahebkar
Macrophages are heterogeneous and their phenotype and functions are regulated by the surrounding micro-environment. Macrophages commonly exist in two distinct subsets: 1) Classically activated or M1 macrophages, which are pro-inflammatory and polarized by lipopolysaccharide (LPS) either alone or in association with Th1 cytokines such as IFN-γ, GM-CSF and produce pro-inflammatory cytokines such as interleukin-1β (IL-1β), IL-6, IL-12, IL-23 and TNF-α, and 2) Alternatively activated or M2 macrophages, which are anti-inflammatory and immunoregulatory and polarized by Th2 cytokines such as IL-4 and IL-13 and produce anti-inflammatory cytokines such as IL-10 and TGF-β...
January 10, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29316343/circulating-monocyte-chemoattractant-protein-1-mcp-1-is-associated-with-cachexia-in-treatment-na%C3%A3-ve-pancreatic-cancer-patients
#5
Erin E Talbert, Heather L Lewis, Matthew R Farren, Mitchell L Ramsey, Jeffery M Chakedis, Priyani Rajasekera, Ericka Haverick, Angela Sarna, Mark Bloomston, Timothy M Pawlik, Teresa A Zimmers, Gregory B Lesinski, Phil A Hart, Mary E Dillhoff, Carl R Schmidt, Denis C Guttridge
BACKGROUND: Cancer-associated wasting, termed cancer cachexia, has a profound effect on the morbidity and mortality of cancer patients but remains difficult to recognize and diagnose. While increases in circulating levels of a number of inflammatory cytokines have been associated with cancer cachexia, these associations were generally made in patients with advanced disease and thus may be associated with disease progression rather than directly with the cachexia syndrome. Thus, we sought to assess potential biomarkers of cancer-induced cachexia in patients with earlier stages of disease...
January 7, 2018: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/29304863/gm-csf-overexpression-after-influenza-a-virus-infection-prevents-mortality-and-moderates-m1-like-airway-monocyte-macrophage-polarization
#6
E Scott Halstead, Todd M Umstead, Michael L Davies, Yuka Imamura Kawasawa, Patricia Silveyra, Judie Howyrlak, Linlin Yang, Weichao Guo, Sanmei Hu, Eranda Kurundu Hewage, Zissis C Chroneos
BACKGROUND: Influenza A viruses cause life-threatening pneumonia and lung injury in the lower respiratory tract. Application of high GM-CSF levels prior to infection has been shown to reduce morbidity and mortality from pathogenic influenza infection in mice, but the mechanisms of protection and treatment efficacy have not been established. METHODS: Mice were infected intranasally with influenza A virus (PR8 strain). Supra-physiologic levels of GM-CSF were induced in the airways using the double transgenic GM-CSF (DTGM) or littermate control mice starting on 3 days post-infection (dpi)...
January 5, 2018: Respiratory Research
https://www.readbyqxmd.com/read/29304171/mcp-1-kc-like-and-il-8-as-critical-mediators-of-pathogenesis-caused-by-babesia-canis
#7
Asier Galán, Iva Mayer, Renata Barić Rafaj, Krešo Bendelja, Velimir Sušić, José Joaquín Cerón, Vladimir Mrljak
Canine babesiosis caused by the intraerythrocytic protozoan parasite Babesia canis is a tick-borne disease characterized by a host response that involves both cellular and humoral immunity. This study focuses on the secretion of cytokines Granulocyte-Macrophage Colony-Stimulating Factor (GM-CSF), Keratinocyte Chemotactic-like (KC-like), Interleukins (IL)-2, IL-7, IL-8, IL-10, IL-15, IL-18 and Monocyte Chemotactic Protein-1 (MCP-1) in babesiosis caused by Babesia canis upon treatment with Imizol®. We assessed time dependent changes in cytokine levels and tested whether these changes correlate with pathogenesis of the disease...
2018: PloS One
https://www.readbyqxmd.com/read/29301935/-inhibition-of-histone-h3k27-demethylase-selectively-modulates-inflammatory-phenotypes-of-natural-killer-cells
#8
Adam Cribbs, Edward S Hookway, Graham Wells, Morten Lindow, Susanna Obad, Henrik Oerum, Rab K Prinjha, Nick Athanasou, Aneka Sowman, Martin Philpott, Henry Penn, Kalle Soderstrom, Marc Feldmann, Udo Oppermann
Natural killer (NK) cells are innate lymphocytes, important in immune surveillance and elimination of stressed, transformed, or virus-infected cells. They critically shape the inflammatory cytokine environment to orchestrate interactions of cells of the innate and adaptive immune systems. Some studies have reported that NK cell activation and cytokine secretion are controlled epigenetically, but have yielded only limited insight into the mechanisms. Using chemical screening with small-molecule inhibitors of chromatin methylation and acetylation, further validated by knockdown approaches, we here identified Jumonji-type histone H3K27 demethylases as key regulators of cytokine production in human NK cell subsets...
January 4, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29301342/small-myristoylated-protein-3-identified-as-a-potential-virulence-factor-in-leishmania-amazonensis-proves-to-be-a-protective-antigen-against-visceral-leishmaniasis
#9
Marcelo P Oliveira, Vívian T Martins, Thaís T O Santos, Daniela P Lage, Fernanda F Ramos, Beatriz C S Salles, Lourena E Costa, Daniel S Dias, Patrícia A F Ribeiro, Mônica S Schneider, Ricardo A Machado-de-Ávila, Antônio L Teixeira, Eduardo A F Coelho, Miguel A Chávez-Fumagalli
In a proteomics approach conducted with Leishmania amazonensis, parasite proteins showed either an increase or a decrease in their expression content during extensive in vitro cultivation, and were related to the survival and the infectivity of the parasites, respectively. In the current study, a computational screening was performed to predict virulence factors among these molecules. Three proteins were selected, one of which presented no homology to human proteins. This candidate, namely small myristoylated protein-3 (SMP-3), was cloned, and its recombinant version (rSMP-3) was used to stimulate peripheral blood mononuclear cells (PBMCs) from healthy subjects living in an endemic area of leishmaniasis and from visceral leishmaniasis patients...
January 3, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29296839/pak2-regulates-myeloid-derived-suppressor-cell-development-in-mice
#10
Yi Zeng, Seongmin Hahn, Jessica Stokes, Emely A Hoffman, Monika Schmelz, Maria Proytcheva, Jonathan Chernoff, Emmanuel Katsanis
Myeloid-derived suppressor cells (MDSCs) are CD11b+Gr1+ cells that induce T-cell hyporesponsiveness, thus impairing antitumor immunity. We have previously reported that disruption of Pak2, a member of the p21-activated kinases (Paks), in hematopoietic stem/progenitor cells (HSPCs) induces myeloid lineage skewing and expansion of CD11bhighGr1high cells in mice. In this study, we confirmed that Pak2-KO CD11bhighGr1high cells suppressed T-cell proliferation, consistent with an MDSC phenotype. Loss of Pak2 function in HSPCs led to (1) increased hematopoietic progenitor cell sensitivity to granulocyte-macrophage colony-stimulating factor (GM-CSF) signaling, (2) increased MDSC proliferation, (3) decreased MDSC sensitivity to both intrinsic and Fas-Fas ligand-mediated apoptosis, and (4) promotion of MDSCs by Pak2-deficient CD4+ T cells that produced more interferon γ, tumor necrosis factor α, and GM-CSF...
October 10, 2017: Blood Advances
https://www.readbyqxmd.com/read/29296736/novel-gm-csf-signals-via-ifn-%C3%AE-r-irf-1-and-akt-mtor-license-monocytes-for-suppressor-function
#11
Eliana Ribechini, James A Hutchinson, Sabine Hergovits, Marion Heuer, Jörg Lucas, Ulrike Schleicher, Ana-Laura Jordán Garrote, Sarah J Potter, Paloma Riquelme, Heike Brackmann, Nora Müller, Hartmann Raifer, Ingolf Berberich, Magdalena Huber, Andreas Beilhack, Michael Lohoff, Christian Bogdan, Matthias Eyrich, Heike M Hermanns, Edward K Geissler, Manfred B Lutz
Granulocyte-macrophage colony-stimulating factor (GM-CSF) controls proliferation and survival of myeloid cells including monocytes. Here, we describe a time-dependent licensing process driven by GM-CSF in murine Ly6Chigh and human CD14+ monocytes that disables their inflammatory functions and promotes their conversion into suppressor cells. This 2-step licensing of monocytes requires activation of the AKT/mTOR/mTORC1 signaling cascade by GM-CSF followed by signaling through the interferon-γ receptor (IFN-γR)/interferon regulatory factor-1 (IRF-1) pathway...
June 13, 2017: Blood Advances
https://www.readbyqxmd.com/read/29290406/elevated-expression-of-granulocyte-macrophage-colony-stimulating-factor-receptor-in-multiple-sclerosis-lesions
#12
Jaime Imitola, Javad Rasouli, Fumihiro Watanabe, Kader Mahajan, Aswhini D Sharan, Bogoljub Ciric, Guang-Xian Zhang, Abdolmohamad Rostami
Multiple sclerosis (MS) is a chronic inflammatory demyelinating and neurodegenerative disease that disproportionately affects young adults, leading to disability and high costs to society. Infiltration of T cells and monocytes into the central nervous system (CNS) is critical for disease initiation and progression. However, despite a great deal of effort the molecular mechanisms by which immune cells initiate and perpetuate CNS damage in MS have not yet been elucidated. In experimental autoimmune encephalomyelitis (EAE), an animal model of MS, granulocyte-macrophage colony-stimulating factor (GM-CSF) produced by pathogenic Th1 and Th17 cells is critical for the recruitment of monocytes into the CNS during the initial stage of disease...
December 22, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/29262348/cellular-differentiation-of-human-monocytes-is-regulated-by-time-dependent-interleukin-4-signaling-and-the-transcriptional-regulator-ncor2
#13
Jil Sander, Susanne V Schmidt, Branko Cirovic, Naomi McGovern, Olympia Papantonopoulou, Anna-Lena Hardt, Anna C Aschenbrenner, Christoph Kreer, Thomas Quast, Alexander M Xu, Lisa M Schmidleithner, Heidi Theis, Lan Do Thi Huong, Hermi Rizal Bin Sumatoh, Mario A R Lauterbach, Jonas Schulte-Schrepping, Patrick Günther, Jia Xue, Kevin Baßler, Thomas Ulas, Kathrin Klee, Natalie Katzmarski, Stefanie Herresthal, Wolfgang Krebs, Bianca Martin, Eicke Latz, Kristian Händler, Michael Kraut, Waldemar Kolanus, Marc Beyer, Christine S Falk, Bettina Wiegmann, Sven Burgdorf, Nicholas A Melosh, Evan W Newell, Florent Ginhoux, Andreas Schlitzer, Joachim L Schultze
Human in vitro generated monocyte-derived dendritic cells (moDCs) and macrophages are used clinically, e.g., to induce immunity against cancer. However, their physiological counterparts, ontogeny, transcriptional regulation, and heterogeneity remains largely unknown, hampering their clinical use. High-dimensional techniques were used to elucidate transcriptional, phenotypic, and functional differences between human in vivo and in vitro generated mononuclear phagocytes to facilitate their full potential in the clinic...
December 19, 2017: Immunity
https://www.readbyqxmd.com/read/29258201/impact-of-unsaturated-fatty-acids-on-cytokine-driven-endothelial-cell-dysfunction
#14
Simon Trommer, Anja Leimert, Michael Bucher, Julia Schumann
Polyunsaturated fatty acids (PUFA) are reported to exert prophylactic and acute therapeutic effects in diseases linked to endothelial dysfunction. In the present study, the consequences of a PUFA enrichment of endothelial cells (cell line TIME) on cell viability, expression of the cytokines interleukin-6 (IL-6), interleukin-8 (IL-8), granulocyte-macrophage colony-stimulating factor (GM-CSF), and monocyte chemoattractant protein 1 (MCP-1), synthesis of the adhesion molecules intercellular adhesion molecule 1 (ICAM-1) and vascular adhesion molecule 1 (VCAM-1), and production of the coagulation factors plasminogen activator inhibitor-1 (PAI-1), von Willebrand factor (vWF), and tissue factor (TF) was analyzed in parallel...
December 16, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29251350/engineered-cell-migration-to-lesions-linked-to-autoimmune-disease
#15
Abdullah A Mosabbir, Anam Qudrat, Kevin Truong
The damaging and degenerative effects in autoimmune diseases such as rheumatoid arthritis, multiple sclerosis and Crohn's disease often manifests as the formation of lesions that feature a high local concentration of granulocyte-macrophage colony-stimulating factor (GM-CSF). GM-CSF along with other pro-inflammatory factors form a positive feedback loop that ultimately perpetuate the lesions. Hence, to engineer chemotaxis to GM-CSF, we created a new chimeric GM-CSF receptor alpha subunit (GMRchi) that was coupled with a previously engineered Ca2+ -activated RhoA...
December 18, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/29251002/mannosylated-t-tn-with-freund-s-adjuvant-induces-cellular-immunity
#16
Hye-Youn Son, Vasso Apostolopoulos, Chul-Woo Kim
Inducing cancer-specific cellular immune responses has become an attractive strategy in cancer treatment. In this study, we investigated the role of several adjuvants in eliciting T/Tn-specific cellular immunity and protection against T/Tn expressing tumor challenge. T/Tn (9:1) antigen was purified from blood type "O" erythrocytes donated from healthy Korean volunteers. Immunization was performed using: T/Tn only, T/Tn mixed with Freund's adjuvant (T/Tn + FA), keyhole limpet hemocyanin (KLH)-conjugated T/Tn mixed with FA (KLH-T/Tn + FA), and oxidized mannan-conjugated T/Tn mixed with FA (ox-M-T/Tn + FA)...
December 1, 2017: International Journal of Immunopathology and Pharmacology
https://www.readbyqxmd.com/read/29246400/immunomodulatory-effects-of-myeloid-derived-suppressor-cells-in-diseases-role-in-cancer-and-infections
#17
REVIEW
Ruth S E Tamadaho, Achim Hoerauf, Laura E Layland
Myeloid-derived suppressor cells (MDSCs) are heterogeneous cells capable of abrogating T and B cells responses and have been identified in numerous cancers. As with other regulatory cell populations, they aim to maintain balance between host-defence-associated inflammation and ensuing tissue pathology. MDSC accumulation and/or activation involve several growth factors and cytokines including Granulocyte Macrophage-Colony Stimulating Factor (GM-CSF) and Interleukin (IL)-6 and suppression has been linked to receptors such as IL-4Rα...
July 4, 2017: Immunobiology
https://www.readbyqxmd.com/read/29245934/apolipoprotein-a-i-mimetic-peptide-4f-suppresses-tumor-associated-macrophages-and-pancreatic-cancer-progression
#18
Meiyu Peng, Qi Zhang, Yingnan Cheng, Shuyu Fu, Huipeng Yang, Xiangdong Guo, Jieyou Zhang, Lina Wang, Lijuan Zhang, Zhenyi Xue, Yan Li, Yurong Da, Zhi Yao, Liang Qiao, Rongxin Zhang
Pancreatic cancer is an aggressive malignancy that is unresponsive to conventional radiation and chemotherapy. Therefore, development of novel immune therapeutic strategies is urgently needed. L-4F, an Apolipoprotein A-I (ApoA-I) mimetic peptide, is engineered to mimic the anti-inflammatory and anti-oxidative functionalities of ApoA-I. In this work, H7 cells were orthotopically implanted in C57BL/6 mice and treated with L-4F. Then, pancreatic cancer progression and the inflammatory microenvironment were investigated in vivo...
November 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/29243219/pd-1-blockade-enhances-the-anti-tumor-efficacy-of-gm-csf-surface-modified-bladder-cancer-stem-cells-vaccine
#19
Xiaojun Shi, Xinji Zhang, Jinlong Li, Lijun Mo, Hongfan Zhao, Yongtong Zhu, Zhiming Hu, Jimin Gao, Wanlong Tan
Eliminating cancer stem cells (CSCs) is a key issue in eradicating tumor. The streptavidin-granulocyte -macrophage colony stimulating factor (SA-GM-CSF) surface-modified bladder cancer stem cells vaccine previously developed using our protein-anchor technology could effectively induce specific immune response for eliminating CSCs. However, program death receptor-1 (PD-1)/program death ligand 1 (PD-L1) signaling in tumor microenvironment results in tumor adaptive immune resistance. Although the CSCs vaccine could increase the number of CD8+ T-cells, a part of these CD8+ T-cells expressed PD-1...
December 15, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29233902/t-cell-production-of-gm-csf-protects-the-host-during-experimental-tuberculosis
#20
Richard T Robinson
Although classically associated with myelopoiesis, granulocyte-macrophage colony-stimulating factor (GM-CSF) is increasingly recognized as being important for tuberculosis (TB) resistance. GM-CSF is expressed by nonhematopoietic and hematopoietic lineages following infection with Mycobacterium tuberculosis and is necessary to restrict M. tuberculosis growth in experimental models. Until the recent study by Rothchild et al. (mBio 8:e01514-17, 2017, https://doi.org/10.1128/mBio.01514-17), it was unknown whether GM-CSF-producing T cells contribute to TB resistance...
December 12, 2017: MBio
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