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https://www.readbyqxmd.com/read/28106145/cd1-and-cd1-porcine-blood-dendritic-cells-are-enriched-for-the-orthologues-of-the-two-major-mammalian-conventional-subsets
#1
Jane C Edwards, Helen E Everett, Miriam Pedrera, Helen Mokhtar, Emanuele Marchi, Ferran Soldevila, Daryan A Kaveh, Philip J Hogarth, Helen L Johns, Javier Nunez-Garcia, Falko Steinbach, Helen R Crooke, Simon P Graham
Conventional dendritic cells (cDC) are professional antigen-presenting cells that induce immune activation or tolerance. Two functionally specialised populations, termed cDC1 and cDC2, have been described in humans, mice, ruminants and recently in pigs. Pigs are an important biomedical model species and a key source of animal protein; therefore further understanding of their immune system will help underpin the development of disease prevention strategies. To characterise cDC populations in porcine blood, DC were enriched from PBMC by CD14 depletion and CD172a enrichment then stained with lineage mAbs (Lin; CD3, CD8α, CD14 and CD21) and mAbs specific for CD172a, CD1 and CD4...
January 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28104514/increased-foxp3-helios-regulatory-t-cells-and-decreased-acute-graft-versus-host-disease-after-allogeneic-bone-marrow-transplantation-in-patients-receiving-sirolimus-and-rgi-2001-an-activator-of-invariant-natural-killer-t-cells
#2
Yi-Bin Chen, Yvonne A Efebera, Laura Johnston, Edward D Ball, David Avigan, Lazaros J Lekakis, Carlos R Bachier, Paul Martin, Omar Duramad, Yasuyuki Ishii, Semi Han, Yu-Jin Jung, Dana Lee, Lori Kunkel, Robert S Negrin, Jack D Bui
Regulatory T (Treg) cells play a central role in immune tolerance and prevention of aberrant immune responses. Several studies have suggested that the risk of GVHD after allogeneic hematopoietic cell transplantation (HCT) can be ameliorated by increasing Tregs. We have developed an approach of in vivo expansion of Tregs with RGI-2001, a novel liposomal formulation of a synthetic derivative of alpha-galactosylceramide, a naturally occurring ligand that binds to CD1 and activates and expands invariant natural killer cells...
January 16, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28090319/the-role-of-liver-sinusoidal-cells-in-local-hepatic-immune-surveillance
#3
REVIEW
Dirk Wohlleber, Percy A Knolle
Although the liver's function as unique immune organ regulating immunity has received a lot of attention over the last years, the mechanisms determining hepatic immune surveillance against infected hepatocytes remain less well defined. Liver sinusoidal cells, in particular, liver sinusoidal endothelial cells (LSECs) and Kupffer cells (KCs), serve as physical platform for recruitment and anchoring of blood-borne immune cells in the liver. Liver sinusoidal cells also function as portal of entry for infectious microorganisms targeting the liver such as hepatotropic viruses, bacteria or parasites...
December 2016: Clinical & Translational Immunology
https://www.readbyqxmd.com/read/28087919/presumptive-spontaneous-lysosomal-storage-like-disease-in-a-crl-cd1-icr-mouse
#4
Krista M
A clinically unremarkable 4.5-mo-old female Crl:CD1(ICR) VAF/Elite mouse was euthanized for scheduled sentinel processing.Gross necropsy findings included significant hepatosplenomegaly and visceral lymphadenomegaly, resulting in a preliminarygross diagnosis of lymphoma. Histology revealed florid accumulations of large, 'foamy' macrophages present in the bone marrow, small intestines, and viscera including liver, spleen, lymph nodes, thymus, uterus, and ovaries. The cytoplasm of these cells was abundant, stained pale blue with Wright-Giemsa and was periodic acid-Schiff positive...
January 13, 2017: Comparative Medicine
https://www.readbyqxmd.com/read/28087148/immunogenicity-differences-of-a-15-valent-pneumococcal-polysaccharide-conjugate-vaccine-pcv15-based-on-vaccine-dose-route-of-immunization-and-mouse-strain
#5
REVIEW
Ivette Caro-Aguilar, Lani Indrawati, Robin M Kaufhold, Christine Gaunt, Yuhua Zhang, Denise K Nawrocki, Cecilia Giovarelli, Michael A Winters, William J Smith, Jon Heinrichs, Julie M Skinner
Pneumococcal disease continues to be a medical need even with very effective vaccines on the market. Globally, there are extensive research efforts to improve serotype coverage with novel vaccines; therefore, conducting preclinical studies in different animal models becomes essential. The work presented herein focuses on evaluating a 15-valent pneumococcal conjugate vaccine (PCV15) in mice. Initially we evaluated several doses of PCV15 in Balb/c mice. The optimal vaccine dose was determined to be 0.4μg per pneumococcal polysaccharide (PS) (0...
January 10, 2017: Vaccine
https://www.readbyqxmd.com/read/28081204/deletion-of-ssna-attenuates-the-pathogenicity-of-streptococcus-suis-and-confers-protection-against-serovar-2-strain-challenge
#6
Miao Li, Ru-Jian Cai, Chun-Ling Li, Shuai Song, Yan Li, Zhi-Yong Jiang, Dong-Xia Yang
Streptococcus suis serotype 2 (SS2) is a major porcine and human pathogen which causes arthritis, meningitis, and septicemia. Streptococcus suis nuclease A (SsnA) is a recently discovered deoxyribonuclease (DNase), which has been demonstrated to contribute to escape killing in neutrophil extracellular traps (NETs). To further determine the effects of ssnA on virulence, the ssnA deletion mutant (ΔssnA) and its complemented strain (C-ΔssnA) were constructed. The ability of ΔssnA mutant to interact with human laryngeal epithelial cell (Hep-2) was evaluated and it exhibited dramatically decreased ability to adhere to and invade Hep-2 cells...
2017: PloS One
https://www.readbyqxmd.com/read/28078912/unaltered-glutamate-transporter-1-protein-levels-in-aquaporin-4-knockout-mice
#7
Jacqueline A Hubbard, Devin K Binder
Maintenance of glutamate and water homeostasis in the brain is crucial to healthy brain activity. Astrocytic glutamate transporter-1 (GLT1) and aquaporin-4 (AQP4) are the main regulators of extracellular glutamate and osmolarity, respectively. Several studies have reported colocalization of GLT1 and AQP4, but the existence of a physical interaction between the two has not been well studied. Therefore, we used coimmunoprecipitation to determine whether a strong interaction exists between these two important molecules in mice on both a CD1 and C57BL/6 background...
February 2017: ASN Neuro
https://www.readbyqxmd.com/read/28069589/analysis-of-the-fgfr2c342y-mouse-model-shows-condensation-defects-due-to-misregulation-of-sox9-expression-in-prechondrocytic-mesenchyme
#8
Emma Peskett, Samin Kumar, William Baird, Janhvi Jaiswal, Ming Li, Priyanca Patel, Jonathan A Britto, Erwin Pauws
Syndromic craniosynostosis caused by mutations in FGFR2 is characterised by developmental pathology in both endochondral and membranous skeletogenesis. Detailed phenotypic characterisation of features in the membranous calvarium, the endochondral cranial base and other structures in the axial and appendicular skeleton has not been performed at embryonic stages. We investigated bone development in the Crouzon mouse model (Fgfr2(C342Y)) at pre- and post-ossification stages to improve understanding of the underlying pathogenesis...
January 9, 2017: Biology Open
https://www.readbyqxmd.com/read/28057017/the-brain-penetrating-cxcr4-antagonist-prx177561-increases-the-antitumor-effects-of-bevacizumab-and-sunitinib-in-preclinical-models-of-human-glioblastoma
#9
Giovanni Luca Gravina, Andrea Mancini, Francesco Marampon, Alessandro Colapietro, Simona Delle Monache, Roberta Sferra, Flora Vitale, Peter J Richardson, Lee Patient, Stephen Burbidge, Claudio Festuccia
BACKGROUND: Glioblastoma recurrence after treatment with the anti-vascular endothelial growth factor (VEGF) antibody bevacizumab is characterized by a highly infiltrative and malignant behavior that renders surgical excision and chemotherapy ineffective. It has been demonstrated that anti-VEGF/VEGFR therapies control the invasive phenotype and that relapse occurs through the increased activity of CXCR4. We therefore hypothesized that combining bevacizumab or sunitinib with the novel CXCR4 antagonist, PRX177561, would have superior antitumor activity...
January 5, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28053042/induction-of-migraine-like-photophobic-behavior-in-mice-by-both-peripheral-and-central-cgrp-mechanisms
#10
Bianca N Mason, Eric A Kaiser, Adisa Kuburas, Maria-Cristina M Loomis, John A Latham, Leon F Garcia-Martinez, Andrew F Russo
: The neuropeptide calcitonin gene-related peptide (CGRP) is a key player in migraine. Although migraine can be treated using CGRP antagonists that act peripherally, the relevant sites of CGRP action remain unknown. To address the role of CGRP both within and outside the CNS, we used CGRP-induced light-aversive behavior in mice as a measure of migraine-associated photophobia. Peripheral (intraperitoneal) injection of CGRP resulted in light-aversive behavior in wild-type CD1 mice similar to aversion seen previously after central (intracerebroventricular) injection...
January 4, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28031342/transcriptional-classification-and-functional-characterization-of-human-airway-macrophage-and-dendritic-cell-subsets
#11
Vineet I Patel, J Leland Booth, Elizabeth S Duggan, Steven Cate, Vicky L White, David Hutchings, Susan Kovats, Dennis M Burian, Mikhail Dozmorov, Jordan P Metcalf
The respiratory system is a complex network of many cell types, including subsets of macrophages and dendritic cells that work together to maintain steady-state respiration. Owing to limitations in acquiring cells from healthy human lung, these subsets remain poorly characterized transcriptionally and phenotypically. We set out to systematically identify these subsets in human airways by developing a schema of isolating large numbers of cells by whole-lung bronchoalveolar lavage. Six subsets of phagocytic APC (HLA-DR(+)) were consistently observed...
December 28, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28024724/a-ppar-gamma-agonist-protects-against-oral-mucositis-induced-by-irradiation-in-a-murine-model
#12
Monica Mangoni, Mariangela Sottili, Chiara Gerini, Isacco Desideri, Cinzia Bastida, Stefania Pallotta, Francesca Castiglione, Pierluigi Bonomo, Icro Meattini, Daniela Greto, Emanuela Olmetto, Francesca Terziani, Carlotta Becherini, Camilla Delli Paoli, Laura Trombetta, Mauro Loi, Giampaolo Biti, Lorenzo Livi
BACKGROUND: Due to its anti-inflammatory, antifibrotic and antineoplastic properties, the PPAR gamma agonist rosiglitazone is of interest in prevention and therapy of radiation-induced toxicities. We aimed to evaluate the radioprotective effect of rosiglitazone in a mouse model of radiation-induced oral mucositis. MATERIAL AND METHODS: Oral mucositis was obtained by irradiation of the oral region of C57BL/6J mice, pretreated or not with rosiglitazone. Mucositis was assessed by macroscopic scoring, histology and molecular analysis...
January 2017: Oral Oncology
https://www.readbyqxmd.com/read/27998269/increased-t-cell-breadth-and-antibody-response-elicited-in-prime-boost-regimen-by-viral-vector-encoded-homologous-siv-gag-env-in-outbred-cd1-mice
#13
Anne-Marie Carola Andersson, Peter Johannes Holst
BACKGROUND: A major obstacle for the development of HIV vaccines is the virus' worldwide sequence diversity. Nevertheless, the presence of T cell epitopes within conserved regions of the virus' structural Gag protein and conserved structures in the envelope (env) sequence raises the possibility that cross-reactive responses may be induced by vaccination. In this study, the aim was to investigate the importance of antigenic match on immunodominance and breadth of obtainable T cell responses...
December 20, 2016: Journal of Translational Medicine
https://www.readbyqxmd.com/read/27990550/guest-induced-sc-sc-transformation-within-the-first-k-cd-heterodimetallic-triazole-complex-a-luminescent-sensor-for-high-explosives-and-cyano-molecules
#14
Ying Wang, Wei Jia, Ran Chen, Xiao-Jun Zhao, Zhong-Liang Wang
The first K/Cd heterodimetallic complex {[Cd1.5(TTPE)1.5Cl3K(H2O)3]·3H2O}n (1b) based on triazole has been generated from {[Cd(TTPE)(HCOO)](NO3)·3DMAC·H2O}n (1) during the ion- and solvent-exchange experiment in an irreversible SC-SC transformation. Based on its luminescence properties, we have, for the first time, demonstrated that 1b is a heterodimetallic sensor for detection of high-explosives and cyano molecules.
January 3, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/27989891/ventilatory-acclimatization-to-hypoxia-in-mice-methodological-considerations
#15
Catherine M Ivy, Graham R Scott
We examined ventilatory acclimatization to hypoxia (VAH) in CD1 mice, and contrasted results obtained using the barometric method on unrestrained mice with pneumotachography and pulse oximetry on restrained mice. Responses to progressive step reductions in O2 fraction (21% to 8%) were assessed in mice acclimated to normoxia and hypobaric hypoxia (barometric pressure of 60kPa for 6-8 weeks). Hypoxia acclimation increased the hypoxic ventilatory response (primarily by increasing breathing frequency rather than tidal volume), arterial O2 saturation (SaO2) and heart rate in deep hypoxia, hypoxic chemosensitivity (ventilatory O2/CO2 equivalents versus SaO2), and respiratory water loss, and it blunted the hypoxic depression of metabolism and body temperature...
October 29, 2016: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/27926457/modulation-of-brain-pufa-content-in-different-experimental-models-of-mice
#16
Corinne Joffre, Stéphane Grégoire, Véronique De Smedt, Niyazi Acar, Lionel Bretillon, Agnès Nadjar, Sophie Layé
The relative amounts of arachidonic acid (AA) and docosahexaenoic acid (DHA) govern the different functions of the brain. Their brain levels depend on structures considered, on fatty acid dietary supply and the age of animals. To have a better overview of the different models available in the literature we here compared the brain fatty acid composition in various mice models (C57BL/6J, CD1, Fat-1, SAMP8 mice) fed with different n-3 PUFA diets (deficient, balanced, enriched) in adults and aged animals. Our results demonstrated that brain AA and DHA content is 1) structure-dependent; 2) strain-specific; 3) differently affected by dietary approaches when compared to genetic model of PUFA modulation; 4) different in n-3 PUFA deficient aged C57BL6/J when compared to SAMP8 mouse model of aging...
November 2016: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/27914335/studies-on-the-influence-of-%C3%AE-cyclodextrin-on-graphene-oxide-and-its-synergistic-activity-to-the-electrochemical-detection-of-nitrobenzene
#17
Murugan Velmurugan, Natarajan Karikalan, Shen-Ming Chen, Zi-Chi Dai
The impact of the β-cyclodextrin (β-CD) on the graphene oxide (GO) was considerably altered the activity of electrochemical sensors. Hence, the present study, we scrutinized the electrocatalytic determination of nitrobenzene (NB) by changing the different loading level of β-CD on GO modified electrodes. The composites were prepared by the simple ultrasonication method and characterized by UV-Visible spectroscopy, infrared spectroscopy and scanning electron microscope. Interestingly, the synergistic electrocatalytic activity was appeared for the 1...
March 15, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/27909097/induction-of-migraine-like-photophobic-behavior-in-mice-by-both-peripheral-and-central-cgrp-mechanisms
#18
Bianca N Mason, Eric A Kaiser, Adisa Kuburas, Maria-Cristina M Loomis, John A Latham, Leon F Garcia-Martinez, Andrew F Russo
: The neuropeptide calcitonin gene-related peptide (CGRP) is a key player in migraine. While migraine can be treated using CGRP antagonists that act peripherally, the relevant sites of CGRP action remain unknown. To address the role of CGRP both within and outside the central nervous system, we used CGRP-induced light aversive behavior in mice as a measure of migraine-associated photophobia. Peripheral (intraperitoneal, IP) injection of CGRP resulted in light aversive behavior in wild-type CD1 mice similar to aversion previously seen following central (intracerebroventricular, ICV) injection...
December 1, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27908630/non-linear-dose-response-of-aluminium-hydroxide-adjuvant-particles-selective-low-dose-neurotoxicity
#19
Guillemette Crépeaux, Housam Eidi, Marie-Odile David, Yasmine Baba-Amer, Eleni Tzavara, Bruno Giros, François-Jérôme Authier, Christopher Exley, Christopher A Shaw, Josette Cadusseau, Romain K Gherardi
Aluminium (Al) oxyhydroxide (Alhydrogel(®)), the main adjuvant licensed for human and animal vaccines, consists of primary nanoparticles that spontaneously agglomerate. Concerns about its safety emerged following recognition of its unexpectedly long-lasting biopersistence within immune cells in some individuals, and reports of chronic fatigue syndrome, cognitive dysfunction, myalgia, dysautonomia and autoimmune/inflammatory features temporally linked to multiple Al-containing vaccine administrations. Mouse experiments have documented its capture and slow transportation by monocyte-lineage cells from the injected muscle to lymphoid organs and eventually the brain...
January 15, 2017: Toxicology
https://www.readbyqxmd.com/read/27878909/role-of-mcp-1-in-pleural-effusion-development-in-a-carrageenan-induced-murine-model-of-pleurisy
#20
Sally M Lansley, Hui Min Cheah, Y C Gary Lee
BACKGROUND AND OBJECTIVE: Exudative pleural effusions affect over 1500 patients per million population each year. The pathobiology of pleural exudate formation remains unclear. Our recent study revealed monocyte chemotactic protein-1 (MCP-1) as a key driver of fibrinolytic-induced exudate effusion while another study found a role for MCP-1 in malignant effusion formation. In the present study, we further evaluated the role of MCP-1 in the development of pleural effusion in a mouse model of acute pleural inflammation...
November 22, 2016: Respirology: Official Journal of the Asian Pacific Society of Respirology
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