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https://www.readbyqxmd.com/read/28096423/trogocytosis-of-peptide-mhc-class-ii-complexes-from-dendritic-cells-confers-antigen-presenting-ability-on-basophils
#1
Kensuke Miyake, Nozomu Shiozawa, Toshihisa Nagao, Soichiro Yoshikawa, Yoshinori Yamanishi, Hajime Karasuyama
Th2 immunity plays important roles in both protective and allergic responses. Nevertheless, the nature of antigen-presenting cells responsible for Th2 cell differentiation remains ill-defined compared with the nature of the cells responsible for Th1 and Th17 cell differentiation. Basophils have attracted attention as a producer of Th2-inducing cytokine IL-4, whereas their MHC class II (MHC-II) expression and function as antigen-presenting cells are matters of considerable controversy. Here we revisited the MHC-II expression on basophils and explored its functional relevance in Th2 cell differentiation...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28096272/anti-leukemia-efficacy-and-mechanisms-of-action-of-sl-101-a-novel-anti-cd123-antibody-conjugate-in-acute-myeloid-leukemia
#2
Lina Han, Jeffrey L Jorgensen, Christopher Brooks, Ce Shi, Qi Zhang, Graciela M Nogueras González, Antonio Cavazos, Rongqing Pan, Hong Mu, Sa Wang, Jin Zhou, Gheath Alatrash, Stefan O Ciurea, Michael Rettig, John F DiPersio, Jorge E Cortes, Xuelin Huang, Hagop Kantarjian, Michael Andreeff, Farhad Ravandi-Kashani, Marina Konopleva
PURPOSE: The persistence of leukemia stem cells (LSC)-containing cells after induction therapy may contribute to minimal residual disease (MRD) and relapse in acute myeloid leukemia (AML). We investigated the clinical relevance of CD34+CD123+ LSC-containing cells and anti-leukemia potency of a novel antibody-conjugate SL-101 in targeting CD123+ LSCs. Experimental Methods and Results: In a retrospective study on 86 newly diagnosed AML patients, we demonstrated that a higher proportion of CD34+CD123+ LSC-containing cells in remission was associated with persistent MRD, and predicted shorter relapse-free survival in patients with poor-risk cytogenetics...
January 17, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28053519/network-pharmacology-based-identification-of-key-pharmacological-pathways-of-yin-huang-qing-fei-capsule-acting-on-chronic-bronchitis
#3
Guohua Yu, Yanqiong Zhang, Weiqiong Ren, Ling Dong, Junfang Li, Ya Geng, Yi Zhang, Defeng Li, Haiyu Xu, Hongjun Yang
For decades in China, the Yin-Huang-Qing-Fei capsule (YHQFC) has been widely used in the treatment of chronic bronchitis, with good curative effects. Owing to the complexity of traditional Chinese herbal formulas, the pharmacological mechanism of YHQFC remains unclear. To address this problem, a network pharmacology-based strategy was proposed in this study. At first, the putative target profile of YHQFC was predicted using MedChem Studio, based on structural and functional similarities of all available YHQFC components to the known drugs obtained from the DrugBank database...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28044192/porcine-mast-cells-infected-with-h1n1-influenza-virus-release-histamine-and-inflammatory-cytokines-and-chemokines
#4
In Hong Lee, Hyun Soo Kim, Sang Heui Seo
Mast cells reside in many tissues, including the lungs, and might play a role in enhancing influenza virus infections in animals. In this study, we cultured porcine mast cells from porcine bone marrow cells with IL-3 and stem cell factor to study the infectivity and activation of the 2009 pandemic H1N1 influenza virus of swine origin. Porcine mast cells were infected with H1N1 influenza virus, without the subsequent production of infectious viruses but were activated, as indicated by the release of histamines...
January 2, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28039843/il-3-and-gm-csf-modulate-functions-of-splenic-macrophages-in-enu-induced-leukemia
#5
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/28038963/phosphorylated-cis-suppresses-the-epo-or-jak2-v617f-mutant-triggered-cell-proliferation-through-binding-to-epor
#6
Megumi Funakoshi-Tago, Takuro Moriwaki, Fumihito Ueda, Hiroomi Tamura, Tadashi Kasahara, Kenji Tago
The JAK2 V617F mutant-mediated aberrant signaling pathway is a hallmark of myeloproliferative neoplasms (MPNs). Although cytokine-inducible Src homology 2 protein (CIS) and suppressors of cytokine signaling (SOCS) are negative regulators of the JAK-STAT pathway, the functional role of CIS/SOCS family members in the JAK2 V617F mutant-induced oncogenic signaling pathway has not yet been elucidated. In this study, we found that the expression of CIS and SOCS1 was induced through the activation of signal transducer and activator of transcription 5 (STAT5) in not only the cells stimulated with Epo or IL-3 but also the cells transformed by the JAK2 V617F mutant...
December 28, 2016: Cellular Signalling
https://www.readbyqxmd.com/read/28036233/shared-and-distinct-aspects-of-the-sepsis-transcriptomic-response-to-fecal-peritonitis-and-pneumonia
#7
Katie L Burnham, Emma E Davenport, Jayachandran Radhakrishnan, Peter Humburg, Anthony C Gordon, Paula Hutton, Eduardo Svoren-Jabalera, Christopher Garrard, Adrian Vs Hill, Charles J Hinds, Julian C Knight
RATIONALE: Heterogeneity in the septic response has hindered efforts to understand pathophysiology and develop targeted therapies. Source of infection, with different causative organisms and temporal changes, might influence this heterogeneity. OBJECTIVES: To investigate individual and temporal variation in the transcriptomic response to sepsis due to fecal peritonitis, and to compare with community acquired pneumonia. METHODS: We performed genome-wide gene expression profiling in peripheral blood leukocytes for adult patients admitted to intensive care with sepsis due to fecal peritonitis (n=117) or community acquired pneumonia (n=126), and non-septic controls (n=10)...
December 30, 2016: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28031576/anti-colony-stimulating-factor-therapies-for-inflammatory-and-autoimmune-diseases
#8
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/28000952/human-basophils-are-differentially-activated-by-and-are-a-source-of-il-31
#9
Ulrike Raap, Manuela Gehring, Svea Kleiner, Urda Rüdrich, Britta Eiz-Vesper, Helmut Haas, Alexander Kapp, Bernhard F Gibbs
BACKGROUND: Basophils are important effector cells involved in the pathogenesis of inflammatory skin diseases including chronic urticaria which is associated by increased IL-31 serum levels. So far the effects of IL-31 on human basophils are unknown. OBJECTIVE: To analyse the functional role of IL-31 in basophil biology. METHODS: IL-31 expression was evaluated in skin samples derived from chronic spontaneous urticaria patients. Oncostatin M receptor (OSMR), IL-31 receptor A (RA) and IL-31 protein expressions were analysed on human basophils from healthy donors...
December 21, 2016: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28000949/il-3-up-regulates-and-activates-human-eosinophil-cd32-and-%C3%AE-m%C3%A3-2-integrin-causing-degranulation
#10
Stephane Esnault, Mats W Johansson, Elizabeth A Kelly, Leo Koenderman, Deane F Mosher, Nizar N Jarjour
BACKGROUND: Eosinophils contribute to the pathogenesis of multiple diseases, including asthma. Treatment with antibodies targeting IL-5 or IL-5 receptor α reduces the frequency of asthma exacerbations. Eosinophil receptors for IL-5 share a common ß-chain with IL-3 and GM-CSF receptors. We recently reported that IL-3 is more potent than IL-5 or GM-CSF in maintaining the ERK/p90S6K/RPS6 ribosome-directed signaling pathway, leading to increased protein translation. OBJECTIVE: We aimed to determine disease-relevant consequences of prolonged eosinophil stimulation with IL-3...
December 21, 2016: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27999422/plasma-intermedin-level-indicates-severity-and-treatment-efficacy-of-septic-shock-in-sprague-dawley-sd-rats
#11
Su-Xian Yang, Yun-Xiu Chen, Jing Xu, Zhao-Hui Yang
BACKGROUND The aim of this study was to investigate the value of plasma intermedin (IMD) in assessing severity and treatment efficacy of septic shock. MATERIAL AND METHODS Healthy male Sprague-Dawley (SD) rats were chosen and divided into a normal control group (n=15) and a shock model group (n=27) that received intravenous injection of lipopolysaccharide (LPS). Then, 3 specimens were taken from each group. The shock model group rats were divided into an LPS group and a treatment group with 12 rats each. The treatment group received intravenous injection of compound sodium lactate solution...
December 21, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27980777/improved-b-cell-development-in-humanized-nod-scid-il2r%C3%AE-null-mice-transgenically-expressing-human-stem-cell-factor-granulocyte-macrophage-colony-stimulating-factor-and-interleukin-3
#12
Sonal Jangalwe, Leonard D Shultz, Anuja Mathew, Michael A Brehm
INTRODUCTION: Immunodeficient mice engrafted with human immune systems support studies of human hematopoiesis and the immune response to human-specific pathogens. A significant limitation of these humanized mouse models is, however, a severely restricted ability of human B cells to undergo class switching and produce antigen-specific IgG after infection or immunization. METHODS: In this study, we have characterized the development and function of human B cells in NOD-scid IL2Rγ(null) (NSG) mice transgenically expressing human stem cell factor (SCF), granulocyte macrophage colony-stimulating factor (GM-CSF), and IL-3 (NSG-SGM3) following engraftment with human hematopoietic stem cells, autologous fetal liver, and thymic tissues (bone marrow, liver, thymus or BLT model)...
December 2016: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/27935258/polyphenols-from-lonicera-caerulea-l-berry-attenuate-experimental-nonalcoholic-steatohepatitis-by-inhibiting-proinflammatory-cytokines-productions-and-lipid-peroxidation
#13
Shusong Wu, Satoshi Yano, Ayami Hisanaga, Xi He, Jianhua He, Kozue Sakao, De-Xing Hou
SCOPE: Nonalcoholic steatohepatitis (NASH) is a common disease that closely associated with inflammation and oxidative stress, and Lonicera caerulea L. polyphenols (LCP) are reported to possess both antioxidant and anti-inflammatory properties. This study aimed to study the protective effects and mechanisms of LCP on NASH in a high fat diet (HFD) plus carbon tetrachloride (CCL4 )-induced mouse model. METHODS AND RESULTS: Mice were fed with HFD containing LCP (0...
December 9, 2016: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/27932954/neuronal-release-of-cytokine-il-3-triggered-by-mechanosensitive-autostimulation-of-the-p2x7-receptor-is-neuroprotective
#14
Jason C Lim, Wennan Lu, Jonathan M Beckel, Claire H Mitchell
Mechanical strain due to increased pressure or swelling activates inflammatory responses in many neural systems. As cytokines and chemokine messengers lead to both pro-inflammatory and neuroprotective actions, understanding the signaling patterns triggered by mechanical stress may help improve overall outcomes. While cytokine signaling in neural systems is often associated with glial cells like astrocytes and microglia, the contribution of neurons themselves to the cytokine response is underappreciated and has bearing on any balanced response...
2016: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/27927068/beetroot-beta-vulgaris-rescues-mice-from-%C3%AE-ray-irradiation-by-accelerating-hematopoiesis-and-curtailing-immunosuppression
#15
Jinhee Cho, So Jin Bing, Areum Kim, Nam Ho Lee, Sang-Hee Byeon, Gi-Ok Kim, Youngheun Jee
CONTEXT: Beetroot [Beta vulgaris Linné (Chenopodiaceae)], a vegetable usually consumed as a food or a medicinal plant in Europe, has been reported to have antioxidant and anti-inflammatory properties. Since the lymphohematopoietic system is the most sensitive tissue to ionizing radiation, protecting it from radiation damage is one of the best ways to decrease detrimental effects from radiation exposure. OBJECTIVE: In this study, we evaluated the radio-protective effects of beetroot in hematopoietic stem cells (HSCs) and progenitor cells...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/27925194/sv40-infection-of-mesenchymal-stromal-cells-from-wharton-s-jelly-drives-the-production-of-inflammatory-and-tumoral-mediators
#16
Carolina Cason, Giuseppina Campisciano, Nunzia Zanotta, Erica Valencic, Serena Delbue, Ramona Bella, Manola Comar
The Mesenchymal Stromal Cells from umbilical cord Wharton's jelly (WJSCs) are a source of cells with high potentiality for the treatment of human immunological disorders. Footprints of the oncogenic viruses Simian Virus 40 (SV40) and JC Virus (JCPyV) have been recently detected in human WJSCs specimens. The aim of this study is to evaluate if WJSCs can be efficiently infected by these Polyomaviruses and if they can potentially exert tumoral activity. Cell culture experiments indicated that WJSCs could sustain both SV40 and JCPyV infections...
December 7, 2016: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/27913457/treatment-of-blastic-plasmacytoid-dendritic-cell-neoplasm
#17
Jill M Sullivan, David A Rizzieri
Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a rare myeloid malignancy with no defined standard of care. BPDCN presents most commonly with skin lesions with or without extramedullary organ involvement before leukemic dissemination. As a result of its clinical ambiguity, differentiating BPDCN from benign skin lesions or those of acute myeloid leukemia with leukemia cutis is challenging. BPDCN is most easily defined by the phenotype CD4(+)CD56(+)CD123(+)lineage(-)MPO(-), although many patients will present with variable expression of CD4, CD56, or alternate plasmacytoid markers, which compounds the difficulty in differentiating BPDCN from other myeloid or lymphoid malignancies...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27910206/balance-between-il-3-and-type-iinterferons-and-their-interrelationship-with-fasl-dictates-lifespan-and-effector-functions-of-human-basophils
#18
B R Hagmann, A Odermatt, T Kaufmann, C A Dahinden, M Fux
BACKGROUND: In contrast to eosinophils and neutrophils, the regulation of the lifespan of human basophils is poorly defined, with the exception of the potent anti-apoptotic effect of IL-3 that also promotes pro-inflammatory effector functions and phenotypic changes. Type I IFNs (IFN-α, IFN-β), which are well known for their anti-viral activities, have the capacity to inhibit allergic inflammation. OBJECTIVE: To elucidate whether type I IFNs have the potential to abrogate the lifespan and/or effector functions of human basophils...
January 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27888517/differentiation-of-induced-pluripotent-stem-cell-derived-neutrophil-granulocytes-from-common-marmoset-monkey-callithrix-jacchus
#19
Christopher Schrimpf, Christoph Wrede, Silke Glage, Jan Hegermann, Samantha Backhaus, Rainer Blasczyk, Hans-Gert Heuft, Thomas Müller
BACKGROUND: Inherited and acquired marrow failure syndromes most commonly lead to defect in myeloid and/or neutrophil differentiation and/or function. Besides this, neutropenia induced by cancer-adjusted chemotherapy is a frequent clinical problem. In both cases, cell replacement therapy is a well-established, but due to necessity of donors limited and perilous procedure. Therefore, autologous cell replacement from patients' own marrow-derived cells lowers risk and bares new possibilities for therapy...
January 2017: Transfusion
https://www.readbyqxmd.com/read/27879269/basophils-promote-tumor-rejection-via-chemotaxis-and-infiltration-of-cd8-t-cells
#20
Ibrahim M Sektioglu, Rafael Carretero, Nadja Bulbuc, Tobias Bald, Thomas Tüting, Alexander Y Rudensky, Günter J Hämmerling
Elevated numbers of regulatory T cells (Treg) in patient tumors are known to inhibit efficient antitumor T-cell responses. To study the mechanisms controlling tumor rejection, we assessed different mouse models for Treg depletion. In Foxp3DTR knock-in mice, about 99% Treg depletion was achieved, resulting in complete rejection of transplanted HCmel12 melanomas in a CD8(+) T-cell-dependent way. In contrast, about 90% Treg depletion obtained in BAC transgenic Foxp3.LuciDTR4 mice failed to induce complete rejection of HCmel12 melanomas, demonstrating that residual Tregs were able to control CD8(+) T-cell responses against the tumor...
January 15, 2017: Cancer Research
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