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https://www.readbyqxmd.com/read/29467297/eosinophil-depletion-suppresses-radiation-induced-small-intestinal-fibrosis
#1
Naoki Takemura, Yosuke Kurashima, Yuki Mori, Kazuki Okada, Takayuki Ogino, Hideki Osawa, Hirosih Matsuno, Lamichhane Aayam, Satoshi Kaneto, Eun Jeong Park, Shintaro Sato, Kouta Matsunaga, Yusuke Tamura, Yasuo Ouchi, Yutaro Kumagai, Daichi Kobayashi, Yutaka Suzuki, Yoshichika Yoshioka, Junichi Nishimura, Masaki Mori, Ken J Ishii, Mark E Rothenberg, Hiroshi Kiyono, Shizuo Akira, Satoshi Uematsu
Radiation-induced intestinal fibrosis (RIF) is a serious complication after abdominal radiotherapy for pelvic tumor or peritoneal metastasis. Herein, we show that RIF is mediated by eosinophil interactions with α-smooth muscle actin-positive (α-SMA+ ) stromal cells. Abdominal irradiation caused RIF especially in the submucosa (SM) of the small intestine, which was associated with the excessive accumulation of eosinophils in both human and mouse. Eosinophil-deficient mice showed markedly ameliorated RIF, suggesting the importance of eosinophils...
February 21, 2018: Science Translational Medicine
https://www.readbyqxmd.com/read/29461970/aerobic-exercise-inhibits-acute-lung-injury-from-mouse-to-human-evidence-exercise-reduced-lung-injury-markers-in-mouse-and-in-cells
#2
Nicole Cristine Rigonato-Oliveira, BreAnne Mackenzie, Andre Luis Lacerda Bachi, Manoel Carneiro Oliveira-Junior, Alana Santos-Dias, Maysa Alves Rodrigues Brandao-Rangel, Humberto Delle, Tamara Costa-Guimaraes, Nilsa Regina Damaceno-Rodrigues, Nilsa Regina Dulley, Marcela Anhesini Benetti, Christiane Malfitano, Christiane de Angelis, Regiane Albertini, Ana Paula Ligeiro Oliveira, Asghar Abbasi, Hinnak Northoff, Rodolfo Paula Vieira
Acute respiratory distress syndrome (ARDS) is defined as hypoxemic respiratory failure with intense pulmonary inflammation, involving hyperactivation of endothelial cells and neutrophils. Given the anti-inflammatory effects of aerobic exercise (AE), this study investigated whether AE performed daily for 5 weeks would inhibit extra-pulmonary LPS-induced ARDS. C57Bl/6 mice were distributed into Control, Exercise, LPS and Exercise+LPS groups. AE was performed on a treadmill for 5x/week for four weeks before LPS administration...
2018: Exercise Immunology Review
https://www.readbyqxmd.com/read/29458209/dermal-anti-oxidant-anti-inflammatory-and-anti-aging-effects-of-compritol-ato-based-resveratrol-colloidal-carriers-prepared-using-mixed-surfactants
#3
Haidy Abbas, Rabab Kamel, Nesrine El-Sayed
In this study, Compritol ATO-based Resveratrol colloidal carriers (CCCs) were prepared. In most formulae, the use of a binary-mixture of surfactants improved the physicochemical properties. CCC6 (containing P407/P188 as bi-surfactants) attained the highest drug loading, release efficiency during 24 hr and occlusive effect for 48 hr; in addition to, a uniform particle size distribution within the desired range. In-vivo studies were done based on the analysis of anti-oxidant markers [catalase (CAT), reduced glutathione (GSH) and superoxide dismutase (SOD)], anti-inflammatory markers [interleukin 6 (IL-6), interleukin 8 (IL-8) and rat Nuclear factor-kappa B (NF-κB)] and anti-wrinkling markers [matrix metalloproteinase (MMP-1) and Granulocyte-macrophage colony-stimulating factor (GM-CSF)], after UVB-irradiation...
February 16, 2018: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29457319/the-impact-of-b-1-correction-on-mp2rage-cortical-t-1-and-apparent-cortical-thickness-at-7t
#4
Roy A M Haast, Dimo Ivanov, Kâmil Uludağ
Determination of cortical thickness using MRI has often been criticized due to the presence of various error sources. Specifically, anatomical MRI relying on T1 contrast may be unreliable due to spatially variable image contrast between gray matter (GM), white matter (WM) and cerebrospinal fluid (CSF). Especially at ultra-high field (≥ 7T) MRI, transmit and receive B1 -related image inhomogeneities can hamper correct classification of tissue types. In the current paper, we demonstrate that residual B1+ (transmit) inhomogeneities in the T1 -weighted and quantitative T1 images using the MP2RAGE sequence at 7T lead to biases in cortical thickness measurements...
February 18, 2018: Human Brain Mapping
https://www.readbyqxmd.com/read/29449600/glucocorticoids-promote-apoptosis-of-proinflammatory-monocytes-by-inhibiting-erk-activity
#5
Adrian Achuthan, Ahmad S M Aslam, Quyen Nguyen, Pui-Yeng Lam, Andrew J Fleetwood, Ashlee T Frye, Cynthia Louis, Ming-Chin Lee, Julia E Smith, Andrew D Cook, Moshe Olshansky, Stephen J Turner, John A Hamilton
Glucocorticoids (GCs) are potent anti-inflammatory drugs whose mode of action is complex and still debatable. One likely cellular target of GCs are monocytes/macrophages. The role of GCs in monocyte survival is also debated. Although both granulocyte macrophage-colony stimulating factor (GM-CSF) and macrophage-CSF (M-CSF) are important regulators of macrophage lineage functions including their survival, the former is often associated with proinflammatory functions while the latter is important in lineage homeostasis...
February 15, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29435154/efficacy-of-granulocyte-macrophage-colony-stimulating-factor-combined-with-metronomic-paclitaxel-in-the-treatment-of-lewis-lung-carcinoma-transplanted-in-mice
#6
Nengping Zhu, Rongsheng Qin, Qin Zhang, Shaozhi Fu, Shanshan Liu, Yue Chen, Juan Fan, Yunwei Han
Metronomic chemotherapy in combination with immunotherapy is an attractive approach in cancer therapy. The purpose of the present study was to investigate the anti-tumor effect of granulocyte-macrophage colony-stimulating factor (GM-CSF) in combination with metronomic paclitaxel (MET PTX) on Lewis lung carcinoma transplanted in mice. In the present study, tumor-bearing mice survival time and tumor growth were monitored. The day after the end of the treatment, white blood cells were counted, and the number and maturation of dendritic cell were determined by flow cytometry...
January 12, 2018: Oncotarget
https://www.readbyqxmd.com/read/29434649/occupational-exposure-to-ultrafine-particles-in-police-officers-no-evidence-for-adverse-respiratory-effects
#7
G Jordakieva, I Grabovac, E Valic, K E Schmidt, A Graff, A Schuster, K Hoffmann-Sommergruber, C Oberhuber, O Scheiner, A Goll, J Godnic-Cvar
Background: Inhalation exposure to fine and ultrafine particles (UFPs) has been associated with respiratory diseases. However, little is known on the quality, threshold levels and concentration of these particles causing adverse health effects. Methods: The impact of occupational exposure to submicrometer and UFPs was assessed in 30 healthy police shooting instructors by clinical investigation, self-assessment questionnaire, sputum and spirometry and compared to a control group...
2018: Journal of Occupational Medicine and Toxicology
https://www.readbyqxmd.com/read/29434585/the-activin-a-peroxisome-proliferator-activated-receptor-gamma-axis-contributes-to-the-transcriptome-of-gm-csf-conditioned-human-macrophages
#8
Concha Nieto, Rafael Bragado, Cristina Municio, Elena Sierra-Filardi, Bárbara Alonso, María M Escribese, Jorge Domínguez-Andrés, Carlos Ardavín, Antonio Castrillo, Miguel A Vega, Amaya Puig-Kröger, Angel L Corbí
GM-CSF promotes the functional maturation of lung alveolar macrophages (A-MØ), whose differentiation is dependent on the peroxisome proliferator-activated receptor gamma (PPARγ) transcription factor. In fact, blockade of GM-CSF-initiated signaling or deletion of the PPARγ-encoding gene PPARG leads to functionally defective A-MØ and the onset of pulmonary alveolar proteinosis. In vitro, macrophages generated in the presence of GM-CSF display potent proinflammatory, immunogenic and tumor growth-limiting activities...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29434451/impaired-granulocyte-macrophage-colony-stimulating-factor-bioactivity-accelerates-surgical-recurrence-in-ileal-crohn-s-disease
#9
Grace Gathungu, Yuanhao Zhang, Xinyu Tian, Erin Bonkowski, Leahana Rowehl, Julia Krumsiek, Billy Nix, Claudia Chalk, Bruce Trapnell, Wei Zhu, Rodney Newberry, Lee Denson, Ellen Li
AIM: To examine the relationship between elevated granulocyte-macrophage colony-stimulating factor (GM-CSF) auto-antibodies (Ab) level and time to surgical recurrence after initial surgery for Crohn's disease (CD). METHODS: We reviewed 412 charts from a clinical database at tertiary academic hospital. Patients included in the study had ileal or ileocolonic CD and surgical resection of small bowel or ileocecal region for management of disease. Serum samples were analyzed for serological assays including GM-CSF cytokine, GM-CSF Ab, ASCA IgG and IgA, and genetic markers including SNPs rs2066843, rs2066844, rs2066845, rs2076756 and rs2066847 in NOD2, rs2241880 in ATG16L1, and rs13361189 in IRGM...
February 7, 2018: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29431121/methotrexate-limits-inflammation-through-an-a20-dependent-cross-tolerance-mechanism
#10
Cristina Municio, Ángeles Dominguez-Soto, Sara Fuentelsaz-Romero, Amalia Lamana, Nuria Montes, Víctor D Cuevas, Raquel García Campos, José L Pablos, Isidoro González-Álvaro, Amaya Puig-Kröger
OBJECTIVES: Methotrexate (MTX) is the anchor drug for treatment of rheumatoid arthritis (RA), but the mechanism of its anti-inflammatory action is not fully understood. In RA, macrophages display a proinflammatory polarisation profile that resembles granulocyte-macrophage colony-stimulating factor (GM-CSF)-differentiated macrophages and the response to MTX is only observed in thymidylate synthase+ GM-CSF-dependent macrophages. To determine the molecular basis for the MTX anti-inflammatory action, we explored toll-like receptor (TLR), RA synovial fluid (RASF) and tumour necrosis factor receptor (TNFR)-initiated signalling in MTX-exposed GM-CSF-primed macrophages...
February 3, 2018: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/29428678/profiling-cytokine-levels-in-chlorhexidine-and-egcg-treated-odontoblast-like-cells
#11
Alexander Terry Stavroullakis, Marcela Rocha Carrilho, Celine Marie Levesque, Anuradha Prakki
OBJECTIVE: To screen the effect of two compounds, chlorhexidine diacetate (CHX) and epigallocatechin-gallate (EGCG), on the levels of cytokines produced by odontoblast-like cells (MDPC-23). METHODS: Cells were seeded at 24h and 48h with serial dilution of the compounds to determine cell metabolic activity by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay (n=3). Cells with no compound treatment were used as control (Ctr). For the highest equal non-cytotoxic compound dilution tested at 48h cell treatment, total protein concentration was measured using a Pierce bicinchoninic acid (BCA) assay (n=3), and expression of 23 cytokines was analyzed using the Bio-Plex cytokine assay (n=2)...
February 7, 2018: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/29416539/adjuvant-effect-of-bacille-calmette-gu%C3%A3-rin-on-hepatitis-b-vaccine-immunogenicity-in-the-preterm-and-term-newborn
#12
Annette Scheid, Francesco Borriello, Carlo Pietrasanta, Helen Christou, Joann Diray-Arce, Matthew A Pettengill, Sweta Joshi, Ning Li, Ilana Bergelson, Tobias Kollmann, David J Dowling, Ofer Levy
Immunization is key to protecting term and preterm infants from a heightened risk of infection. However, preterm immunity is distinct from that of the term, limiting its ability to effectively respond to vaccines routinely given at birth, such as hepatitis B vaccine (HBV). As part of the Expanded Program on Immunization, HBV is often given together with the live-attenuated vaccine Bacille Calmette-Guérin (BCG), known to activate multiple pattern-recognition receptors. Of note, some clinical studies suggest BCG can enhance efficacy of other vaccines in term newborns...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29414294/multiple-sclerosis-onset-after-granulocyte-macrophage-colony-stimulating-factor-withdrawal
#13
J Chong, M Cohen, E Waubant
A 51-year old woman with stage III melanoma participated in a phase II clinical trial in which she received subcutaneous rhGM-CSF injections for 3 years. She was in remission by the end of the trial. Seven months after discontinuing GM-CSF she had her first MS event. The unique timeline of rh-GM-CSF injections in a melanoma trial, during which yearly MRI scans showed subtle stable demyelination followed by RRMS onset shortly after discontinuation of treatment, may provide some insight on the role of GM-CSF in MS...
February 1, 2018: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29411511/the-mechanism-for-the-radioprotective-effects-of-zymosan-a-in-mice
#14
Jicong Du, Pei Zhang, Hainan Zhao, Suhe Dong, Yanyong Yang, Jianguo Cui, Fu Gao, Jianming Cai, Cong Liu
It proved that Zymosan-A protected the haematopoietic system from radiation-induced damage via Toll-Like Receptor2 in our previous study. In this study, we investigated the potential mechanism for the radioprotective effects of Zymosan-A. The mice were treated with Zymosan-A (50 mg/kg, dissolved in NS) via peritoneal injection 24 and 2 hours before ionizing radiation. Apoptosis of bone marrow cells and the levels of IL-6, IL-12, G-CSF and GM-CSF were evaluated by flow cytometry assay. DNA damage was determined by γ-H2AX foci assay...
February 7, 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29409885/propionibacterium-acnes-derived-extracellular-vesicles-promote-acne-like-phenotypes-in-human-epidermis
#15
Eun-Jeong Choi, Hyun Gee Lee, Il-Hong Bae, Wanil Kim, Jungwon Park, Tae Ryong Lee, Eun-Gyung Cho
Acne vulgaris is an inflammatory disease occurring in the pilosebaceous unit and is the most common skin condition in young people. A gram-positive bacterium, Propionibacterium acnes (P. acnes), has been suspected to contribute to the development of acne. Here, we report that P. acnes constitutively releases extracellular vesicles (EVs) exhibiting typical EV morphology and size. Moreover, the P. acnes-derived EVs (PEVs) can induce acne-like phenotypes in human epidermal keratinocytes and a reconstituted human skin model...
January 30, 2018: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/29402722/cd80-cd86-signaling-contributes-to-the-proinflammatory-response-of-staphylococcus-aureus-in-the-airway
#16
Dane Parker
It was posited that the initial host response to Staphylococcus aureus is a contributing factor in the pathogenesis of acute pneumonia. Having previously observed that T cells play a negative role in the pathogenesis of acute pneumonia to S. aureus the contribution of the CD80/CD86 pathway in pathogenesis was investigated. Mice lacking CD80 and CD86 had significantly improved survival in a mouse model of acute S. aureus pneumonia. This was accompanied by significant reductions in several proinflammatory cytokines, including TNF, MIP-2, IL-1β, IL-17 and IL-6, as well as increased numbers of viable alveolar macrophages...
February 2, 2018: Cytokine
https://www.readbyqxmd.com/read/29397349/pulmonary-alveolar-proteinosis-in-adults-pathophysiology-and-clinical-approach
#17
REVIEW
Anupam Kumar, Basem Abdelmalak, Yoshikazu Inoue, Daniel A Culver
Pulmonary alveolar proteinosis (PAP) is a diffuse lung disease that results from the accumulation of lipoproteinaceous material in the alveoli and alveolar macrophages due to abnormal surfactant homoeostasis. Identification of the granulocyte-macrophage colony-stimulating factor (GM-CSF) as an indispensable mediator of macrophage maturation and surfactant catabolism was the key discovery leading to the current understanding of the pathogenesis of most forms of PAP. Impaired GM-CSF bioavailability due to anti-GM-CSF autoimmunity is the cause of approximately 90% of adult PAP cases...
January 31, 2018: Lancet Respiratory Medicine
https://www.readbyqxmd.com/read/29397306/anti-inflammatory-roles-of-mesenchymal-stromal-cells-during-acute-streptococcus-pneumoniae-pulmonary-infection-in-mice
#18
Takahiro Asami, Makoto Ishii, Ho Namkoong, Kazuma Yagi, Sadatomo Tasaka, Takanori Asakura, Shoji Suzuki, Tetsuro Kamo, Satoshi Okamori, Hirofumi Kamata, Haiyue Zhang, Ahmed E Hegab, Naoki Hasegawa, Tomoko Betsuyaku
BACKGROUND: Pneumonia is the fourth leading cause of death worldwide, and Streptococcus pneumoniae is the most commonly associated pathogen. Increasing evidence suggests that mesenchymal stromal cells (MSCs) have anti-inflammatory roles during innate immune responses such as sepsis. However, little is known about the effect of MSCs on pneumococcal pneumonia. METHODS: Bone marrow-derived macrophages (BMDMs) were stimulated with various ligands in the presence or absence of MSC-conditioned medium...
January 31, 2018: Cytotherapy
https://www.readbyqxmd.com/read/29396255/the-doubling-potential-of-t-lymphocytes-allows-clinical-grade-production-of-a-bank-of-genetically-modified-monoclonal-t-cell-populations
#19
Régine Vivien, Soraya Saïagh, Philippe Lemarre, Valérie Chabaud, Béline Jesson, Catherine Godon, Ulrich Jarry, Thierry Guillaume, Patrice Chevallier, Henri Vié, Béatrice Clémenceau
BACKGROUND AIMS: To produce an anti-leukemic effect after hematopoietic stem cell transplantation we have long considered the theoretical possibility of using banks of HLA-DP specific T-cell clones transduced with a suicide gene. For that application as for any others, a clonal strategy is constrained by the population doubling (PD) potential of T cells, which has been rarely explored or exploited. METHODS: We used clinical-grade conditions and two donors who were homozygous and identical for all HLA-alleles except HLA-DP...
January 21, 2018: Cytotherapy
https://www.readbyqxmd.com/read/29395738/th17%C3%A2-cells-%C3%AE-%C3%AE-t-cells-and-their-interplay-in-eae-and-multiple-sclerosis
#20
REVIEW
Aoife M McGinley, Sarah C Edwards, Mathilde Raverdeau, Kingston H G Mills
Experimental autoimmune encephalomyelitis (EAE) is an animal model of multiple sclerosis (MS) that shares many features with the human disease. This review will focus on the role of IL-17-secreting CD4 and γδ T cells in EAE and MS, the plasticity of Th17 cells in vivo and the application of these findings to the understating of the pathogenesis and the development of new treatments for MS. There is convincing evidence that IL-17-secreting CD4 T cells (Th17 cells) and IL-17-secreting γδ T cells play a critical pathogenic role in central nervous system (CNS) inflammation in EAE and MS...
January 21, 2018: Journal of Autoimmunity
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