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Macrophage GM-CSF

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https://www.readbyqxmd.com/read/28097694/serial-cytokine-alterations-and-abnormal-neuroimaging-in-newborn-infants-with-encephalopathy
#1
Fiona M O'Hare, R William G Watson, Amanda O'Neill, Ricardo Segurado, Deirdre Sweetman, Paul Downey, Eoghan Mooney, John Murphy, Veronica Donoghue, Eleanor J Molloy
AIM: Inflammatory cytokines may play a role in the final common pathway in the pathogenesis of hypoxic-ischaemic injury in experimental models. We aimed to profile the systemic pro- and anti-inflammatory response over the first week of life in term infants at risk of neonatal encephalopathy. METHOD: In a tertiary referral university neonatal intensive care unit, serial blood samples were analysed from 41 term infants (requiring resuscitation at birth) in this prospective observational pilot study...
January 17, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28090321/gm-csf-signalling-blockade-and-chemotherapeutic-agents-act-in-concert-to-inhibit-the-function-of-myeloid-derived-suppressor-cells-in-vitro
#2
Tessa Gargett, Susan N Christo, Timothy R Hercus, Nazim Abbas, Nimit Singhal, Angel F Lopez, Michael P Brown
Immune evasion is a recently defined hallmark of cancer, and immunotherapeutic approaches that stimulate an immune response to tumours are gaining recognition. However tumours may evade the immune response and resist immune-targeted treatment by promoting an immune-suppressive environment and stimulating the differentiation or recruitment of immunosuppressive cells. Myeloid-derived suppressor cells (MDSC) have been identified in a range of cancers and are often associated with tumour progression and poor patient outcomes...
December 2016: Clinical & Translational Immunology
https://www.readbyqxmd.com/read/28089377/phase-ii-trial-of-albumin-bound-paclitaxel-and-granulocyte-macrophage-colony-stimulating-factor-as-an-immune-modulator-in-recurrent-platinum-resistant-ovarian-cancer
#3
John B Liao, Ron E Swensen, Kelsie J Ovenell, Katie M Hitchcock-Bernhardt, Jessica L Reichow, Minjun C Apodaca, Leonard D'Amico, Jennifer S Childs, Doreen M Higgins, Barbara J Buening, Barbara A Goff, Mary L Disis
BACKGROUND: Granulocyte macrophage colony-stimulating factor (GM-CSF) stimulates immunity via recruitment of antigen presenting cells and tumor specific T-cell stimulation. Albumin-bound paclitaxel (nab-paclitaxel) followed by GM-CSF may enhance antitumor responses and prolong remissions in ovarian cancer. Immune phenotypes present before treatment may identify responders to chemo-immunotherapy. METHODS: Recurrent platinum-resistant ovarian, peritoneal, or fallopian tube cancer patients received nab-paclitaxel, 100mg/m(2) days 1, 8, 15 followed by GM-CSF 250μg days 16-26 every 28days for 6 planned cycles...
January 12, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28064136/impact-of-probable-interaction-of-low-temperature-and-ambient-fine-particulate-matter-on-the-function-of-rats-alveolar-macrophages
#4
Bin Luo, Jiangtao Liu, Gaoqiang Fei, Ting Han, Kai Zhang, Lina Wang, Hongxia Shi, Li Zhang, Ye Ruan, Jingping Niu
The present study aimed to explore the probable interaction of low temperature and ambient fine particulate matter (PM2.5) on rat alveolar macrophages (AMs). AMs were separated from rat BALF and exposed to PM2.5 (0, 25, 50, 100μg/ml) under different temperature (18, 24, 30, 37°C) for 8h. Results indicated that viability and phagocytosis function of AMs decreased with the decline of temperature and the rise of PM2.5 dose, and the strongest toxicity was shown in the highest PM2.5 (100μg/ml) exposure group at 18°C...
December 28, 2016: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28063981/macrophage-activation-status-determines-the-internalization-of-mesoporous-silica-particles-of-different-sizes-exploring-the-role-of-different-pattern-recognition-receptors
#5
Audrey Gallud, Olesja Bondarenko, Neus Feliu, Natalia Kupferschmidt, Rambabu Atluri, Alfonso Garcia-Bennett, Bengt Fadeel
Mesoporous silica-based particles are promising candidates for biomedical applications. Here, we address the importance of macrophage activation status for internalization of AMS6 (approx. 200 nm in diameter) versus AMS8 (approx. 2 μm) mesoporous silica particles and the role of different phagocytosis receptors for particle uptake. To this end, FITC-conjugated silica particles were used. AMS8 were found to be non-cytotoxic both for M-CSF-stimulated (anti-inflammatory) and GM-CSF-stimulated (pro-inflammatory) macrophages, whereas AMS6 exhibited cytotoxicity towards M-CSF-stimulated, but not GM-CSF-stimulated macrophages; this toxicity was, however, mitigated in the presence of serum...
December 27, 2016: Biomaterials
https://www.readbyqxmd.com/read/28063941/nitro-oleic-acid-regulates-growth-factor-induced-differentiation-of-bone-marrow-derived-macrophages
#6
Hana Verescakova, Gabriela Ambrozova, Lukas Kubala, Tomas Perecko, Adolf Koudelka, Ondrej Vasicek, Tanja K Rudolph, Anna Klinke, Steven R Woodcock, Bruce A Freeman, Michaela Pekarova
Many diseases accompanied by chronic inflammation are connected with dysregulated activation of macrophage subpopulations. Recently, we reported that nitro-fatty acids (NO2-FAs), products of metabolic and inflammatory reactions of nitric oxide and nitrite, modulate macrophage and other immune cell functions. Bone marrow cell suspensions were isolated from mice and supplemented with macrophage colony-stimulating factor (M-CSF) or granulocyte-macrophage colony-stimulating factor (GM-CSF) in combination with NO2-OA for different times...
January 4, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28063891/gm-csf-and-il-4-produced-by-nkt-cells-inversely-regulate-il-1%C3%AE-production-by-macrophages
#7
Sehee Ahn, Dongjin Jeong, Sae Jin Oh, Jiye Ahn, Seung Hyo Lee, Doo Hyun Chung
Natural Killer T (NKT) cells are distinct T cell subset that link innate and adaptive immune responses. IL-1β, produced by various immune cells, plays a key role in the regulation of innate immunity in vivo. However, it is unclear whether NKT cells regulate IL-1β production by macrophages. To address this, we co-cultured NKT cells and peritoneal macrophages in the presence of TCR stimulation and inflammasome activators. Among cytokines secreted from NKT cells, GM-CSF enhanced IL-1β production by macrophages via regulating LPS-mediated pro-IL-1β expression and NLRP3-dependent inflammasome activation, whereas IL-4 enhanced M2-differentiation of macrophages and decreased IL-1β production...
January 4, 2017: Immunology Letters
https://www.readbyqxmd.com/read/28060313/generation-of-human-monocyte-derived-dendritic-cells-from-whole-blood
#8
Wilfried Posch, Cornelia Lass-Flörl, Doris Wilflingseder
Dendritic cells (DCs) recognize foreign structures of different pathogens, such as viruses, bacteria, and fungi, via a variety of pattern recognition receptors (PRRs) expressed on their cell surface and thereby activate and regulate immunity. The major function of DCs is the induction of adaptive immunity in the lymph nodes by presenting antigens via MHC I and MHC II molecules to naïve T lymphocytes. Therefore, DCs have to migrate from the periphery to the lymph nodes after the recognition of pathogens at the sites of infection...
December 24, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28052994/local-delivery-of-the-tlr9-ligand-cpg-down-regulates-host-immune-and-inflammatory-responses-ameliorating-established-leishmania-viannia-panamensis-chronic-infection
#9
Allison K Ehrlich, Olga L Fernández, Daniel Rodriguez-Pinto, Tiago M Castilho, Maria J Corral Caridad, Karen Goldsmith-Pestana, Nancy Gore Saravia, Diane McMahon-Pratt
Infection by Leishmania (Viannia) panamensis, the predominant etiologic agent for cutaneous leishmaniasis in Colombia, is characterized by a chronic mixed-inflammatory response. Current treatment options are plagued by toxicity, lengthy treatment regimens and growing evidence of drug resistance. Immunotherapy, modulating the immune system to mount a protective response, may provide an alternate therapeutic approach. We investigated the ability of the TLR9 ligand, CpG, to modulate established disease in the L...
January 4, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28051154/therapeutic-effects-of-human-umbilical-cord-derived-mesenchymal-stem-cells-in-acute-lung-injury-mice
#10
Hua Zhu, Yi Xiong, Yunqiu Xia, Rong Zhang, Daiyin Tian, Ting Wang, Jihong Dai, Lijia Wang, Hongbing Yao, Hong Jiang, Ke Yang, Enmei Liu, Yujun Shi, Zhou Fu, Li Gao, Lin Zou
The incidence and mortality of acute lung injury (ALI)/acute respiratory distress syndrome (ARDS) are still very high, but stem cells show some promise for its treatment. Here we found that intratracheal administration of human umbilical cord-mesenchymal stem cells (UC-MSCs) significantly improved survival and attenuated the lung inflammation in lipopolysaccharide (LPS)-induced ALI mice. We also used the proteins-chip and bioinformatics to analyze interactions between UC-MSCs treatment and immune-response alternations of ALI mice...
January 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28039843/il-3-and-gm-csf-modulate-functions-of-splenic-macrophages-in-enu-induced-leukemia
#11
Ashish Kumar Singha, Bhaskar Bhattacharjee, Bhaskar Saha, Debasish Maiti
Leukemia is often accompanied by enhanced susceptibility to infection due to compromised B cell and T cell functions. The alterations in macrophage functions in leukemia remain less investigated. Herein, we examined macrophages for their functions and responsiveness to IL-3 and GM-CSF in ENU-induced leukemia in BALB/c mice. We observed that the macrophages from the leukemic mice had less phagocytic activity, reduced chemotactic activity in response to monocyte chemoattractant protein-1(MCP-1), and decreased expression of iNOS, GM-CSF, TLR2, TLR4, IFN-γ and TNF-α...
December 28, 2016: Cytokine
https://www.readbyqxmd.com/read/28039406/the-effect-of-polyphenols-on-cytokine-and-granulocyte-response-to-resistance-exercise
#12
Adam R Jajtner, Jay R Hoffman, Jeremy R Townsend, Kyle S Beyer, Alyssa N Varanoske, David D Church, Leonardo P Oliveira, Kelli A Herrlinger, Shlomit Radom-Aizik, David H Fukuda, Jeffrey R Stout
This study examined the effect of resistance exercise on the production, recruitment, percentage, and adhesion characteristics of granulocytes with and without polyphenol (PPB) supplementation. Thirty-eight untrained men were randomized into three groups: PPB (n = 13, 21.8 ± 2.5 years, 171.2 ± 5.5 cm, 71.2 ± 8.2 kg), placebo (PL; n = 15, 21.6 ± 2.5 years, 176.5 ± 4.9 cm, 84.0 ± 15.7 kg), or control (CON; n = 10, 23.3 ± 4.3 years, 173.7 ± 12.6 cm, 77.3 ± 16.3 kg). Blood samples were obtained pre (PRE), immediately (IP), 1 h (1H), 5 h (5H), 24 h (24H), 48 h (48H), and 96 h (96H) postresistance exercise (PPB/PL) or rest (CON)...
December 2016: Physiological Reports
https://www.readbyqxmd.com/read/28039295/third-generation-cd28-4-1bb-chimeric-antigen-receptor-t-cells-for-chemotherapy-relapsed-or-refractory-acute-lymphoblastic-leukaemia-a-non-randomised-open-label-phase-i-trial-protocol
#13
Xiao-Yi Tang, Yao Sun, Ang Zhang, Guo-Liang Hu, Wei Cao, Dan-Hong Wang, Bin Zhang, Hu Chen
INTRODUCTION: There is no curative treatment available for patients with chemotherapy relapsed or refractory CD19+ B cells-derived acute lymphoblastic leukaemia (r/r B-ALL). Although CD19-targeting second-generation (2nd-G) chimeric antigen receptor (CAR)-modified T cells carrying CD28 or 4-1BB domains have demonstrated potency in patients with advanced B-ALL, these 2 signalling domains endow CAR-T cells with different and complementary functional properties. Preclinical results have shown that third-generation (3rd-G) CAR-T cells combining 4-1BB and CD28 signalling domains have superior activation and proliferation capacity compared with 2nd-G CAR-T cells carrying CD28 domain...
December 30, 2016: BMJ Open
https://www.readbyqxmd.com/read/28031836/pulmonary-alveolar-proteinosis-a-case-report-and-world-literature-review
#14
Armando J Huaringa, Wassem H Francis
Pulmonary alveolar proteinosis (PAP) is a lung disorder which was first described in 1958 by Rosen et al. and is indeed rare disease with a prevalence of 0.1 per 100,000 individuals. PAP is characterized by abnormal accumulation of pulmonary surfactant in the alveolar space, which impairs gas exchange leading to a severe hypoxemia. Pulmonary surfactant is an insoluble proteinaceous material that is rich in lipids and stains positive with periodic acid-Schiff (PAS). The most common type of PAP is the so-called autoimmune or idiopathic type...
November 2016: Respirology Case Reports
https://www.readbyqxmd.com/read/28031576/anti-colony-stimulating-factor-therapies-for-inflammatory-and-autoimmune-diseases
#15
John A Hamilton, Andrew D Cook, Paul P Tak
Granulocyte-macrophage colony-stimulating factor (GM-CSF), macrophage colony-stimulating factor (M-CSF; also known as CSF1), granulocyte colony-stimulating factor (G-CSF) and interleukin-3 (IL-3) can each play a part in the host response to injury and infection, and there is burgeoning interest in targeting these CSFs in inflammatory and autoimmune disorders, as well as in cancer. For success in clinical medicine, therapeutic targeting will need to be delineated from current strategies. The individual CSFs have unique biological roles, suggesting that they could be used to target specific conditions...
December 29, 2016: Nature Reviews. Drug Discovery
https://www.readbyqxmd.com/read/28013480/disseminated-cryptococcosis-due-to-anti-granulocyte-macrophage-colony-stimulating-factor-autoantibodies-in-the-absence-of-pulmonary-alveolar-proteinosis
#16
Chen-Yen Kuo, Shang-Yu Wang, Han-Po Shih, Kun-Hua Tu, Wen-Chi Huang, Jing-Ya Ding, Chia-Hao Lin, Chun-Fu Yeh, Mao-Wang Ho, Shi-Chuan Chang, Chi-Ying He, Hung-Kai Chen, Chen-Hsuan Ho, Chen-Hsiang Lee, Chih-Yu Chi, Cheng-Lung Ku
INTRODUCTION: Autoantibodies to granulocyte-macrophage colony-stimulating factor (GM-CSF) can cause acquired pulmonary alveolar proteinosis (PAP). Cases of acquired PAP susceptible to typical respiratory pathogens and opportunistic infections have been reported. Anti-GM-CSF autoantibodies have been reported in a few patients with cryptococcal meningitis. This study evaluated the presence of neutralizing anti-GM-CSF autoantibodies in patients without known congenital or acquired immunodeficiency with severe pulmonary or extrapulmonary cryptococcal infection but without PAP...
December 24, 2016: Journal of Clinical Immunology
https://www.readbyqxmd.com/read/28011495/granulocyte-colony-stimulating-factor-producing-anaplastic-carcinoma-of-the-pancreas-case-report-and-review-of-the-literature
#17
Sarah Vinzens, Joel Zindel, Martin Zweifel, Tilman Rau, Beat Gloor, Annette Wochner
We report on the case of a 67-year-old man with granulocyte colony-stimulating factor (G-CSF) producing anaplastic carcinoma of the pancreas. Preoperative routine tests revealed an elevated white blood cell (WBC) count of 25.2 G/l, consisting almost exclusively of neutrophilic granulocytes (23.31 G/l) with a predominance of segmented neutrophils (78% of all neutrophilic granulocytes), and elevated levels of C-reactive protein at 87 mg/l. Upon surgery, local tumour infiltration was more extensive than expected from preoperative imaging...
January 2017: Anticancer Research
https://www.readbyqxmd.com/read/28008659/balf-cytokines-in-different-phenotypes-of-chronic-lung-allograft-dysfunction-in-lung-transplant-patients
#18
C Berastegui, S Gómez-Ollés, S Sánchez-Vidaurre, M Culebras, V Monforte, M López-Meseguer, C Bravo, M A Ramon, L Romero, J Sole, M J Cruz, A Román
The long-term success of lung transplantation (LT) is limited by chronic lung allograft dysfunction (CLAD). Different phenotypes of CLAD have been described, such as bronchiolitis obliterans syndrome (BOS) and restrictive allograft syndrome (RAS). The purpose of this study was to investigate levels of cytokines and chemokines in bronchoalveolar lavage fluid (BALF) as markers of these CLAD phenotypes. BALF was collected from 51 recipients who underwent (bilateral and unilateral) LT. The study population was divided into three groups: stable (ST), BOS, and RAS...
December 23, 2016: Clinical Transplantation
https://www.readbyqxmd.com/read/28007893/young-microglia-restore-amyloid-plaque-clearance-of-aged-microglia
#19
Anna Daria, Alessio Colombo, Gemma Llovera, Heike Hampel, Michael Willem, Arthur Liesz, Christian Haass, Sabina Tahirovic
Alzheimer's disease (AD) is characterized by deposition of amyloid plaques, neurofibrillary tangles, and neuroinflammation. In order to study microglial contribution to amyloid plaque phagocytosis, we developed a novel ex vivo model by co-culturing organotypic brain slices from up to 20-month-old, amyloid-bearing AD mouse model (APPPS1) and young, neonatal wild-type (WT) mice. Surprisingly, co-culturing resulted in proliferation, recruitment, and clustering of old microglial cells around amyloid plaques and clearance of the plaque halo...
December 21, 2016: EMBO Journal
https://www.readbyqxmd.com/read/28002729/the-heterogeneity-of-ly6c-hi-monocytes-controls-their-differentiation-into-inos-macrophages-or-monocyte-derived-dendritic-cells
#20
Shinelle Menezes, Daisy Melandri, Giorgio Anselmi, Thibaut Perchet, Jakob Loschko, Juan Dubrot, Rajen Patel, Emmanuel L Gautier, Stéphanie Hugues, M Paula Longhi, Jake Y Henry, Sergio A Quezada, Grégoire Lauvau, Ana-Maria Lennon-Duménil, Enrique Gutiérrez-Martínez, Alain Bessis, Elisa Gomez-Perdiguero, Christian E Jacome-Galarza, Hannah Garner, Frederic Geissmann, Rachel Golub, Michel C Nussenzweig, Pierre Guermonprez
Inflammation triggers the differentiation of Ly6C(hi) monocytes into microbicidal macrophages or monocyte-derived dendritic cells (moDCs). Yet, it is unclear whether environmental inflammatory cues control the polarization of monocytes toward each of these fates or whether specialized monocyte progenitor subsets exist before inflammation. Here, we have shown that naive monocytes are phenotypically heterogeneous and contain an NR4A1- and Flt3L-independent, CCR2-dependent, Flt3(+)CD11c(-)MHCII(+)PU.1(hi) subset...
December 20, 2016: Immunity
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