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https://www.readbyqxmd.com/read/28819024/trastuzumab-increases-her2-uptake-and-cross-presentation-by-dendritic-cells
#1
Victor A Gall, Anne V Philips, Na Qiao, Karen Clise-Dwyer, Alexander A Perakis, Mao Zhang, Guy Travis Clifton, Pariya Sukhumalchandra, Qing Ma, Sangeetha M Reddy, Dihua Yu, Jeffrey J Molldrem, George E Peoples, Gheath Alatrash, Elizabeth A Mittendorf
Early phase clinical trials evaluating CD8+ T cell-eliciting, HER2-derived peptide vaccines administered to HER2-positive breast cancer patients in the adjuvant setting suggest synergy between the vaccines and trastuzumab, the monoclonal antibody targeting the HER2 protein. Among 60 patients enrolled on clinical trials evaluating the E75+GM-CSF and GP2+GM-CSF vaccines, there have been no recurrences in patients vaccinated after receiving trastuzumab as part of standard therapy in the per treatment analyses conducted after a median follow-up of greater than 34 months...
August 17, 2017: Cancer Research
https://www.readbyqxmd.com/read/28817687/morphologic-phenotypic-and-transcriptomic-characterization-of-classically-and-alternatively-activated-canine-blood-derived-macrophages-in-vitro
#2
Franziska Heinrich, Annika Lehmbecker, Barbara B Raddatz, Kristel Kegler, Andrea Tipold, Veronika M Stein, Arno Kalkuhl, Ulrich Deschl, Wolfgang Baumgärtner, Reiner Ulrich, Ingo Spitzbarth
Macrophages are a heterogeneous cell population playing a pivotal role in tissue homeostasis and inflammation, and their phenotype strongly depends on the micromilieu. Despite its increasing importance as a translational animal model for human diseases, there is a considerable gap of knowledge with respect to macrophage polarization in dogs. The present study comprehensively investigated the morphologic, phenotypic, and transcriptomic characteristics of unstimulated (M0), M1- (GM-CSF, LPS, IFNγ-stimulated) and M2- (M-CSF, IL-4-stimulated)-polarized canine blood-derived macrophages in vitro...
2017: PloS One
https://www.readbyqxmd.com/read/28815242/-investigation-of-the-effect-of-nuclear-factor-%C3%AE%C2%BAb-on-inflammatory-cell-recruitment-phenotype-of-oral-cancer-associated-macrophage
#3
Xiao-Tian Zhou, Dong Chen, Zhen-Ning Jin, Ke Huang, Jie Lin, Yi Men, Chun-Jie Li
PURPOSE: To explore the ability of nuclear factor κB (NFκB) in sustaining inflammatory cell recruitment phenotype of oral cancer associated macrophages, by using NFκB inhibitor(-Bay11-7082). METHODS: By primary culture, murine macrophages were harvested. Cal27 conditioned medium (CM) and Bay11-7082 were applied for stimulation of the macrophages. RT-PCR and ELISA were used for detecting the inflammatory cell recruitment related chemotactic factors. GraphPadPrism5 was used for statistical analysis...
April 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28814715/mast-cells-decrease-efficacy-of-anti-angiogenic-therapy-by-secreting-matrix-degrading-granzyme-b
#4
M Wroblewski, R Bauer, M Cubas Córdova, F Udonta, I Ben-Batalla, K Legler, C Hauser, J Egberts, M Janning, J Velthaus, C Schulze, K Pantel, C Bokemeyer, S Loges
Resistance towards VEGF-centered anti-angiogenic therapy still represents a substantial clinical challenge. We report here that mast cells alter the proliferative and organizational state of endothelial cells which reduces the efficacy of anti-angiogenic therapy. Consequently, absence of mast cells sensitizes tumor vessels for anti-angiogenic therapy in different tumor models. Mechanistically, anti-angiogenic therapy only initially reduces tumor vessel proliferation, however, this treatment effect was abrogated over time as a result of mast cell-mediated restimulation of angiogenesis...
August 16, 2017: Nature Communications
https://www.readbyqxmd.com/read/28811679/bisphenol-a-does-not-mimic-estrogen-in-the-promotion-of-the-in-vitro-response-of-murine-dendritic-cells-to-toll-like-receptor-ligands
#5
Marita Chakhtoura, Uma Sriram, Michelle Heayn, Joshua Wonsidler, Christopher Doyle, Joudy-Ann Dinnall, Stefania Gallucci, Rebecca A Roberts
Sex hormones affect immune responses and might promote autoimmunity. Endocrine disrupting chemicals such as bisphenol A (BPA) may mimic their immune effects. Conventional dendritic cells (cDCs) are pivotal initiators of immune responses upon activation by danger signals coming from pathogens or distressed tissues through triggering of the Toll-like receptors (TLRs). We generated in vitro murine cDCs in the absence of estrogens and measured the effects of exogenously added estrogen or BPA on their differentiation and activation by the TLR ligands LPS and CpG...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28811578/an-epithelial-to-mesenchymal-transition-inducing-potential-of-granulocyte-macrophage-colony-stimulating-factor-in-colon-cancer
#6
Yaqiong Chen, Zhi Zhao, Yu Chen, Zhonglin Lv, Xin Ding, Renxi Wang, He Xiao, Chunmei Hou, Beifen Shen, Jiannan Feng, Renfeng Guo, Yan Li, Hui Peng, Gencheng Han, Guojiang Chen
Growing evidence shows that granulocyte macrophage colony-stimulating factor (GM-CSF) has progression-promoting potentials in certain solid tumors, which is largely attributed to the immunomodulatory function of this cytokine in tumor niches. However, little is known about the effect of GM-CSF on cancer cells. Herein, we show that chronic exposure of colon cancer cells to GM-CSF, which harbor its receptor, leads to occurrence of epithelial to mesenchymal transition (EMT), in time and dose-dependent manners...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28807497/characterisation-of-the-porcine-cytokines-which-activate-the-cd131%C3%AE-c-common-sub-unit-for-potential-immune-augmentation
#7
G Stephenson, K R Morris, T E O'Neil, M P Bruce, A D G Strom, A G D Bean
Early acting cytokines and growth factors such as those of the CD131 βc subunit, may offer an alternative method to the current use of antibiotics and chemicals such as anthelmintics in maintaining Porcine (Po) health. Thus far, the recombinant Po (rPo) Granulocyte-macrophage colony-stimulating factor (GM-CSF), rPo interleukin-3 (IL-3) and rPo interleukin-5 (IL-5) proteins have been identified and cloned and the biological activity of each cytokine has been confirmed in vitro, however, in vivo immune system regulation and hematopoietic stem cell (HSC) augmentation are regulated by numerous cytokines and cellular signals within the bone marrow (BM) niche...
August 11, 2017: Cytokine
https://www.readbyqxmd.com/read/28806641/acute-ethanol-administration-results-in-a-protective-cytokine-and-neuroinflammatory-profile-in-traumatic-brain-injury
#8
Akila Chandrasekar, Florian Olde Heuvel, Annette Palmer, Birgit Linkus, Albert C Ludolph, Tobias M Boeckers, Borna Relja, Markus Huber-Lang, Francesco Roselli
Ethanol intoxication is a common comorbidity in traumatic brain injury. To date, the effect of ethanol on TBI pathogenic cascades and resulting outcomes remains debated. A closed blunt weight-drop murine TBI model has been implemented to investigate behavioral (by sensorimotor and neurological tests), and neuro-immunological (by tissue cytokine arrays and immuno-histology) effects of ethanol intoxication on TBI. The effect of the occurrence of traumatic intracerebral hemorrhage was also studied. The results indicate that ethanol pretreatment results in a faster and better recovery after TBI with reduced infiltration of leukocytes and reduced microglia activation...
August 11, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28805233/analytic-and-dynamic-secretory-profile-of-patient-derived-cytokine-induced-killer-cells
#9
Giulia Mesiano, Roberta Zini, Giulia Montagner, Nicoletta Bianchi, Rossella Manfredini, Antonella Chillemi, Massimo Aglietta, Giovanni Grignani, Ilaria Lampronti, Erika Fiorino, Fabio Malavasi, Dario Sangiolo, Roberto Gambari, Davide Ferrari
Adoptive immunotherapy with Cytokine Induced Killer (CIK) cells has shown antitumor activity against several kinds of cancers in preclinical models and clinical trials. CIK cells are a subset of ex vivo expanded T lymphocytes with T-NK phenotype and MHC-unrestricted antitumor activity. Literature provides scanty information on cytokines, chemokines and growth factors secreted by CIK cells. Therefore, we investigated the secretory profile of CIK cells generated from tumor patients. The secretome analysis was performed at specific time points (day 1, day 14 and day 21) of CIK cells expansion...
August 9, 2017: Molecular Medicine
https://www.readbyqxmd.com/read/28805019/cd11b-gr1-dim-tolerogenic-dendritic-cell-like-cells-are-expanded-in-interstitial-lung-disease-in-skg-mice
#10
Sho Sendo, Jun Saegusa, Takaichi Okano, Soshi Takahashi, Kengo Akashi, Akio Morinobu
OBJECTIVE: SKG mice develop interstitial lung disease (ILD) resembling rheumatoid arthritis-associated ILD (RA-ILD) in human. The aim of this study is to clarify the mechanism behind the lung pathology by analyzing the lung-infiltrating cells in ILD of SKG mice. METHODS: We assessed the severity of zymosan A (ZyA)-induced ILD in SKG mice histologically, and examined lung-infiltrating cells by flow cytometry. Total lung cells and isolated monocytic myeloid-derived suppressor cells (M-MDSCs) were cultured in vitro with GM-CSF (and IL-4)...
August 13, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/28800924/the-influence-of-macrophage-growth-factors-on-theiler-s-murine-encephalomyelitis-virus-tmev-infection-and-activation-of-macrophages
#11
Karin M Schneider, Neva B Watson, Scott B Minchenberg, Paul T Massa
Macrophages are common targets for infection and innate immune activation by many pathogenic viruses including the neurotropic Theiler's Murine Encephalomyelitis Virus (TMEV). As both infection and innate activation of macrophages are key determinants of viral pathogenesis especially in the central nervous system (CNS), an analysis of macrophage growth factors on these events was performed. C3H mouse bone-marrow cells were differentiated in culture using either recombinant macrophage colony stimulating factor (M-CSF) or granulocyte-macrophage colony-stimulating factor (GM-CSF), inoculated with TMEV (BeAn) and analyzed at various times thereafter...
August 8, 2017: Cytokine
https://www.readbyqxmd.com/read/28797844/pd-1-pd-l1-blockade-enhances-the-efficacy-of-sa-gm-csf-surface-modified-tumor-vaccine-in-prostate-cancer
#12
Xiaojun Shi, Xinji Zhang, Jinlong Li, Hongfan Zhao, Lijun Mo, Xianghua Shi, Zhiming Hu, Jimin Gao, Wanlong Tan
Program death receptor-1 (PD-1)/program death ligand 1 (PD-L1) signaling plays an important role in tumor adaptive immune resistance. The streptavidin-granulocyte-macrophage colony stimulating factor (SA-GM-CSF) surface-modified tumor cells vaccine developed through our novel protein-anchor technology could significantly promote the activation of dendritic cells. Although GM-CSF vaccine could significantly increase the number of tumor-specific CD8(+)T-cells, the majority of these CD8(+)T-cells expressed PD-1...
August 8, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28796812/toxicological-and-bio-distribution-profile-of-a-gm-csf-expressing-double-targeted-chimeric-oncolytic-adenovirus-oncos-102-support-for-clinical-studies-on-advanced-cancer-treatment
#13
Lukasz Kuryk, Lotta Vassilev, Tuuli Ranki, Akseli Hemminki, Aila Karioja-Kallio, Onerva Levälampi, Antti Vuolanto, Vincenzo Cerullo, Sari Pesonen
The purpose of this work was to carry out preclinical toxicity and bio-distribution studies required for regulatory approval of a clinical trial application for Phase I clinical studies of ONCOS-102 (Ad5/3-D24-GM-CSF) for therapy of advanced cancers (NCT01598129). The study design, route of administration and dosage differs from the clinical protocol and in more detail, investigate bio-distribution and toxicological profile of ONCOS-102 treatment in animal model. The study was carried out in 300 hamsters divided into nine test groups-three bio-distribution groups and six groups for analysis of toxicity...
2017: PloS One
https://www.readbyqxmd.com/read/28793897/aqueous-extract-of-phragmitis-rhizoma-ameliorates-myelotoxicity-of-docetaxel-in-vitro-and-in-vivo
#14
Jinhee Kim, You Jin Lee, Young Ah Kim, Eun-Sang Cho, Eunna Huh, Ok-Sun Bang, No Soo Kim
BACKGROUND: A variety of anticancer chemotherapeutics induce adverse side effects including myelotoxicity. Dried roots of Phragmites communis Trinius, Phragmitis rhizoma, have been clinically used in traditional folk medicine to relieve various symptoms like fever. In this study, we evaluated the protective effect of the aqueous extract of Phragmitis rhizoma (EPR) against docetaxel-induced myelotoxicity in vitro and in vivo. METHODS: The in vitro myelo-protective effect of EPR was evaluated using the colony forming unit (CFU) assay with hematopoietic progenitor cells...
August 9, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28782519/identification-of-novel-alk2-inhibitors-and-their-effect-on-cancer-cells
#15
Minsung Kim, Okran Choi, Suhkneung Pyo, Sang Un Choi, Chi Hoon Park
Bone morphogenetic protein 9 (BMP9), a member of the TGF-β superfamily, is considered a regulator of glucose homeostasis as well as a neuronal differentiation factor. BMP9 induces phosphorylation of Smad1/5 through activin receptor-like kinase 1 and 2 (ALK1 and ALK2). Recently, many studies have shown that BMP9 contributes to tumorigenesis, and aberrant ALK2 expression is involved in many diseases. To investigate the role of BMP9-ALK2 signaling in cancer cells, we used TF-1 cells that require granulocyte-macrophage colony-stimulating factor (GM-CSF) for cell proliferation...
August 3, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28777803/gm-csf-in-murine-psoriasiform-dermatitis-redundant-and-pathogenic-roles-uncovered-by-antibody-induced-neutralization-and-genetic-deficiency
#16
Tatjana Scholz, Andreas Weigert, Bernhard Brüne, Christian D Sadik, Beate Böhm, Harald Burkhardt
Granulocyte-macrophage colony-stimulating factor (GM-CSF) is a pleiotropic, Th17-derived cytokine thought to critically contribute to the pathogenesis of diverse autoimmune diseases, including rheumatoid arthritis and psoriasis. Treatment with monoclonal antibodies that block GM-CSF activity is associated with favorable therapeutic effects in patients with rheumatoid arthritis. We evaluated the role of GM-CSF as a potential target for therapeutic interference in psoriasis using a combined pharmacologic and genetic approach and the mouse model of imiquimod-induced psoriasiform dermatitis (IMQPD)...
2017: PloS One
https://www.readbyqxmd.com/read/28771533/mechanisms-by-which-porphyromonas-gingivalis-evades-innate-immunity
#17
Kaveh Abdi, Tsute Chen, Brian A Klein, Albert K Tai, Jill Coursen, Xiangdong Liu, Jeff Skinner, Saravanan Periasamy, Youngnim Choi, Benedikt M Kessler, Robert J Palmer, Apostolos Gittis, Polly Matzinger, Margaret J Duncan, Nevil J Singh
The oral cavity is home to unique resident microbial communities whose interactions with host immunity are less frequently studied than those of the intestinal microbiome. We examined the stimulatory capacity and the interactions of two oral bacteria, Porphyromonas gingivalis (P. gingivalis) and Fusobacterium nucleatum (F. nucleatum), on Dendritic Cell (DC) activation, comparing them to the effects of the well-studied intestinal microbe Escherichia coli (E. coli). Unlike F. nucleatum and E. coli, P. gingivalis failed to activate DCs, and in fact silenced DC responses induced by F...
2017: PloS One
https://www.readbyqxmd.com/read/28770666/the-influence-of-vitamin-d-on-m1-and-m2-macrophages-in-patients-with-crohn-s-disease
#18
Serge Dionne, Carl-Frederic Duchatelier, Ernest G Seidman
Defective bacterial clearance by macrophages plays an important role in Crohn's disease (CD). Phenotypes and functions of inflammatory M1 and anti-inflammatory M2 have not been studied in CD. Vitamin D supplementation reduces the severity of CD by unclear mechanisms. We studied macrophage characteristics in CD and controls and the effects of 1,25 vitamin D (1,25D). PBMC were isolated from CD patients and controls. M1 and M2 were generated by culturing of monocytes with GM-CSF and M-CSF, respectively. CD M1 and M2 showed normal phagocytosis and chemotaxis to CCL2 and fMLP...
August 2017: Innate Immunity
https://www.readbyqxmd.com/read/28769538/cytokine-kinetics-in-febrile-neutropenic-children-insights-on-the-usefulness-as-sepsis-biomarkers-influence-of-filgrastim-and-behavior-of-the-il-23-il-17-pathway
#19
Orlei Ribeiro de Araujo, Reinaldo Salomão, Milena Karina Coló Brunialti, Dafne Cardoso Bourguignon da Silva, Andreza Almeida Senerchia, Fabianne Altruda de Moraes Costa Carlesse, Antonio Sergio Petrilli
BACKGROUND: The study aimed to describe the kinetics of various cytokines from day 1 to day 14 of the onset of fever in neutropenic children and to evaluate their performances as discriminators of sepsis in the first 24 hours of fever, the possible influence of filgrastim, and the functioning of the IL-23/IL-17 axis. METHODS: IL-1β, TNF-α, IL-10, IL-12/23p40, IL-21, IL-6, IL-8, IL-17, G-CSF, and GM-CSF were measured in plasma on days 1, 2, 3, 5, and 14 from the onset of fever in 35 patients...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28762151/a-preliminary-investigation-of-short-term%C3%A2-cytokine%C3%A2-expression-in-gingival-crevicular-fluid-secondary-to-high-level-orthodontic-forces-and-the-associated-root-resorption-case-series-analytical-study
#20
Rajiv Ahuja, Moahmmed Almuzian, Alamgir Khan, Dana Pascovici, Oyku Dalci, M Ali Darendeliler
BACKGROUND: Orthodontically induced iatrogenic root resorption (OIIRR) is an unavoidable inflammatory process. Several factors claimed to be related to the severity of OIIRR. Orthodontic forces cause micro-trauma to the periodontal ligament and activate a cascade of cellular events associated with local periodontal inflammation. The purpose of this split-mouth study were (1) to investigate the changes in cytokine profile in the gingival crevicular fluid (GCF) secondary to heavy orthodontic forces and (2) to compare the cytokine expression between participants showing high and low root resorption...
December 2017: Progress in Orthodontics
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