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https://www.readbyqxmd.com/read/28525366/mesenchymal-stem-cell-carriers-enhance-antitumor-efficacy-of-oncolytic-adenoviruses-in-an-immunocompetent-mouse-model
#1
Esther Rincón, Teresa Cejalvo, Deepak Kanojia, Arantzazu Alfranca, Miguel Ángel Rodríguez-Milla, Raul Andrés Gil Hoyos, Yu Han, Lingjiao Zhang, Ramón Alemany, Maciej S Lesniak, Javier García-Castro
Oncolytic virotherapy represents a promising alternative for cancer treatment; however, viral delivery to the tumor represents a major challenge. Mesenchymal stem cells (MSCs) chemotax to tumors, and can serve as a viral delivery tool. Previously, we demonstrated antitumor therapeutic efficacy for mesenchymal stem cells (MSCs) infected with the oncolytic human adenovirus ICOVIR5 (Celyvir) for treatment of neuroblastoma patients. Given the lack of suitable immunocompetent preclinical models, the mechanism underlying Celyvir antitumor activity remains unknown...
May 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28523581/human-adenovirus-in-tissues-of-freshwater-snails-living-in-contaminated-waters
#2
J S Gularte, R Staggemeier, M Demoliner, T M S Heck, F H Heldt, R G F Ritzel, C Rigotto, A Henzel, F R Spilki
Human adenovirus (HAdV) is resistant to environment and can be used as a marker to detect fecal contamination. Considering the importance of freshwater snails in the aquatic environment, their use as concentrators for HAdV is a complementary tool for viral analysis of water. The goal of the study was to detect HAdV in snails and surface water collected from wetlands of the Sinos River (Rio Grande do Sul, Brazil) basin and to compare rates and viral loads found in both samples. HAdV was detected through real-time PCR...
June 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28522194/aptamer-mediated-gene-therapy-enhanced-antitumor-activity-against-human-hepatocellular-carcinoma-in-vitro-and-in-vivo
#3
Shuangli Xiao, Zhongbing Liu, Ruolan Deng, Chunhong Li, Shaozhi Fu, Guilan Chen, Xiaoqin Zhang, Famin Ke, Siyun Ke, Xin Yu, Shurong Wang, Zhirong Zhong
A recombinant adenovirus carrying the tumor suppressor gene PTEN (Ad5-PTEN) is an effective antitumor agent against liver cancer. But the application of Ad5-PTEN has been greatly hindered by its auto-immunogenicity, non-specific toxicity to normal tissues, as well as poor stability in blood stream because of neutralizing antibody. Epithelial cell adhesion molecule (EpCAM) is over-expressed in most solid tumors and it has been identified to be a cancer stem cell surface marker in liver cancer. An RNA aptamer EpDT3 could specially bind with EpCAM and target EpCAM-positive cells...
May 15, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28521528/prevention-and-control-of-emergent-infectious-disease-with-high-specific-antigen-sensor
#4
Hongzhe Zhang, Shanshan Zhang, Nan Liu
This study aims to evaluate the application of a new type of high specificity antigen sensor in detecting the viruses in sudden infectious diseases. Influenza A (H1N1) virus immunosensor was used for the respective determination of the six kinds of antigens of H1N1, H3N2 viral protein, HA protein of H7N9, influenza B virus, adenovirus, and EV71 virus of same dilution degree on the Screen Printed Carbon Electrode (SPCE), so as to test the specificity of the detection method. In addition, various batches of chick embryo allantoic saliva dilution simulation samples were also detected on their recovery (accuracy), repeatability (precision), and stability...
May 18, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28518038/febrile-respiratory-illness-associated-with-human-adenovirus-type-55-in-south-korea-military-2014-20161
#5
Hongseok Yoo, Se Hun Gu, Jaehun Jung, Dong Hyun Song, Changgyo Yoon, Duck Jin Hong, Eun Young Lee, Woong Seog, Il-Ung Hwang, Daesang Lee, Seong Tae Jeong, Kyungmin Huh
An outbreak of febrile respiratory illness associated with human adenovirus (HAdV) occurred in the South Korea military during the 2014-15 influenza season and thereafter. Molecular typing and phylogenetic analysis of patient samples identified HAdV type 55 as the causative agent. Emergence of this novel HAdV necessitates continued surveillance in military and civilian populations.
June 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28516442/vaccines-for-the-common-cold
#6
REVIEW
Daniel Simancas-Racines, Juan Va Franco, Claudia V Guerra, Maria L Felix, Ricardo Hidalgo, Maria José Martinez-Zapata
BACKGROUND: The common cold is a spontaneously remitting infection of the upper respiratory tract, characterised by a runny nose, nasal congestion, sneezing, cough, malaise, sore throat, and fever (usually < 37.8º C). The widespread morbidity caused by the common cold worldwide is related to its ubiquitousness rather than its severity. The development of vaccines for the common cold has been difficult because of antigenic variability of the common cold virus and the indistinguishable multiple other viruses and even bacteria acting as infective agents...
May 18, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28516108/what-is-car-doing-in-the-middle-of-the-adult-neurogenic-road
#7
COMMENT
Sara Salinas, Felix Junyent, Nathalie Coré, Harold Cremer, Eric J Kremer
The molecular and cellular basis of adult neurogenesis has attracted considerable attention for fundamental and clinical applications because neural stem cells and newborn neurons may, one day, be harnessed to replace neurons and allow cognitive improvement in the diseased brain. In rodents, neural progenitors are located in the dentate gyrus and the sub/periventricular zone. In the dentate gyrus the generation of newborn neurons is associated with plasticity, including regulation of memory. The role of subventricular zone neural precursors that migrate to the olfactory bulb is less characterized...
2017: Neurogenesis (Austin, Tex.)
https://www.readbyqxmd.com/read/28516065/mir-142-5p-disrupts-neuronal-morphogenesis-underlying-porcine-hemagglutinating-encephalomyelitis-virus-infection-by-targeting-ulk1
#8
Zi Li, Yungang Lan, Kui Zhao, Xiaoling Lv, Ning Ding, Huijun Lu, Jing Zhang, Huiqing Yue, Junchao Shi, Deguang Song, Feng Gao, Wenqi He
Porcine hemagglutinating encephalomyelitis virus (PHEV) invades the central nervous system (CNS) and causes neurodegenerative disease in suckling piglets, but the understanding of its neuropathogenicity for neurological dysfunction remains limited. Here, we report that miR-142-5p is localized to neurons and negatively regulates neuronal morphogenesis in porcine hemagglutinating encephalomyelitis (PHE). This phenotype was mediated by miR-142-5p inhibition of an mRNA encoding unc-51-like-kinase1 (Ulk1), which controls axon outgrowth and dendrite formation...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28515305/cell-cycle-dependent-expression-of-aav2-rep-in-hsv-1-co-infections-gives-rise-to-a-mosaic-of-cells-replicating-either-aav2-or-hsv-1
#9
Francesca D Franzoso, Michael Seyffert, Rebecca Vogel, Artur Yakimovich, Bruna de Andrade Pereira, Anita F Meier, Sereina O Sutter, Kurt Tobler, Bernd Vogt, Urs F Greber, Hildegard Büning, Mathias Ackermann, Cornel Fraefel
Adeno-associated virus 2 (AAV2) depends for productive replication on the simultaneous presence of a helper virus such as herpes simplex virus type 1 (HSV-1). At the same time, AAV2 efficiently blocks the replication of HSV-1, which would eventually limit its own replication by diminishing the helper virus reservoir. This discrepancy begs the question how AAV2 and HSV-1 can co-exist in a cell population. Here we show that in co-infected cultures, AAV2 DNA replication takes place almost exclusively in S/G2 cells, while HSV-1 DNA replication is restricted to G1...
May 17, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28515232/the-nuclear-export-factor-crm1-controls-juxta-nuclear-microtubule-dependent-virus-transport
#10
I-Hsuan Wang, Christoph J Burckhardt, Artur Yakimovich, Matthias K Morf, Urs F Greber
Transport of large cargo through the cytoplasm requires motor proteins and polarized filaments. Viruses that replicate in the nucleus of post-mitotic cells use microtubules and the dynein/dynactin motor to traffic to the nuclear membrane, and deliver their genome through nuclear pore complexes (NPCs) into the nucleus. How virus particles (virions) or cellular cargo are transferred from microtubules to the NPC is unknown. Here, we analyzed trafficking of incoming cytoplasmic adenoviruses by single particle tracking and super-resolution microscopy...
May 17, 2017: Journal of Cell Science
https://www.readbyqxmd.com/read/28511718/simultaneous-development-of-kawasaki-disease-following-acute-human-adenovirus-infection-in-monozygotic-twins-a-case-report
#11
Sayaka Fukuda, Shuichi Ito, Maya Fujiwara, Jun Abe, Nozomu Hanaoka, Tsuguto Fujimoto, Hiroshi Katsumori
BACKGROUND: The etiology of Kawasaki disease (KD) remains unknown. However, many studies have suggested that specific genetic factors and/or some infectious agents underlie the onset of KD. Previous studies have suggested that human adenovirus (HAdV) is one of the triggering pathogens of KD. Here, we report monozygotic twin boys who sequentially developed KD in conjunction with acute HAdV type 3 (HAdV-3) infection. CASE PRESENTATION: The patients were four-year-old monozygotic twin boys...
May 16, 2017: Pediatric Rheumatology Online Journal
https://www.readbyqxmd.com/read/28508067/cryo-em-structure-of-human-adenovirus-d26-reveals-the-conservation-of-structural-organization-among-human-adenoviruses
#12
Xiaodi Yu, David Veesler, Melody G Campbell, Mary E Barry, Francisco J Asturias, Michael A Barry, Vijay S Reddy
Human adenoviruses (HAdVs) cause acute respiratory, ocular, and gastroenteric diseases and are also frequently used as gene and vaccine delivery vectors. Unlike the archetype human adenovirus C5 (HAdV-C5), human adenovirus D26 (HAdV-D26) belongs to species-D HAdVs, which target different cellular receptors, and is differentially recognized by immune surveillance mechanisms. HAdV-D26 is being championed as a lower seroprevalent vaccine and oncolytic vector in preclinical and human clinical studies. To understand the molecular basis for their distinct biological properties and independently validate the structures of minor proteins, we determined the first structure of species-D HAdV at 3...
May 2017: Science Advances
https://www.readbyqxmd.com/read/28506838/phylogenomic-analysis-of-the-complete-sequence-of-a-gastroenteritis-associated-cetacean-adenovirus-bottlenose-dolphin-adenovirus-1-reveals-a-high-degree-of-genetic-divergence
#13
Maja Malmberg, Consuelo Rubio-Guerri, Juliette Hayer, Daniel García-Párraga, Elvira Nieto-Pelegrín, Mar Melero, Teresa Álvaro, Mónica Valls, Jose Manuel Sánchez-Vizcaíno, Sándor Belák, Fredrik Granberg
Adenoviruses are common pathogens in vertebrates, infecting a wide range of hosts, but only having rarely been detected and correlated with disease in cetaceans. This article describes the first complete genomic sequence of a cetacean adenovirus, bottlenose dolphin adenovirus 1 (BdAdV-1), detected in captive bottlenose dolphin population (Tursiops truncatus) suffering from self-limiting gastroenteritis. The complete genome sequence of BdAdV-1 was recovered from data generated by high-throughput sequencing and validated by Sanger sequencing...
May 12, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28505517/a-modified-adenovirus-vector-mediated-antibody-screening-method-identifies-epha2-as-a-cancer-target
#14
Toshihiro Tanaka, Hiromi Yamada, Masahide Kuroki, Shohta Kodama, Kazuo Tamura, Yasushi Takamatsu
BACKGROUND: We constructed a genetically modified adenovirus vector incorporating an IgG Fc-binding motif from staphylococcal protein A, Z33 (Adv-FZ33). Adv-FZ33 allows an antibody to redirect the vector to a target molecule on the cell surface. We attempted to search for target antigen candidates and antibodies that allowed highly selective gene transduction into malignant tumors. METHODS: Hybridoma libraries producing monoclonal antibodies (mAbs) were screened that increased transduction efficiency in cancer cell lines after cross-linking with Adv-FZ33...
May 12, 2017: Translational Oncology
https://www.readbyqxmd.com/read/28505368/farnesoid-x-receptor-protects-against-low-dose-carbon-tetrachloride-induced-liver-injury-through-the-taurocholate-jnk-pathway
#15
Shogo Takahashi, Naoki Tanaka, Srujana Golla, Tatsuki Fukami, Kristopher W Krausz, Marianne A Polunas, Blair C Weig, Yusuke Masuo, Cen Xie, Changtao Jiang, Frank J Gonzalez
Hepatotoxicity is of major concern for humans exposed to industrial chemicals and drugs. Disruption of farnesoid X receptor (FXR), a master regulator of bile acid (BA) metabolism, enhanced the sensitivity to liver injury in mice after toxicant exposure, but the precise mechanism remains unclear. In this study, the interconnection between BA metabolism, FXR, and chemically-induced hepatotoxicity was investigated using metabolomics, Fxr-null mice and hepatocytes, and adenovirus. A single low-dose intraperitoneal injection of carbon tetrachloride (CCl4), an inducer of acute hepatitis in mice, resulted in more severe hepatocyte damage and higher induction of pro-inflammatory mediators, such as chemokine (C-C motif) ligand 2 (Ccl2), in Fxr-null mice...
May 15, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28500340/both-haemagglutinin-specific-antibody-and-t-cell-responses-induced-by-a-chimpanzee-adenoviral-vaccine-confer-protection-against-influenza-h7n9-viral-challenge
#16
Xiang Wang, Weihui Fu, Songhua Yuan, Xi Yang, Yufeng Song, Lulu Liu, Yudan Chi, Tao Cheng, Man Xing, Yan Zhang, Chao Zhang, Yong Yang, Caihong Zhu, Xiaoyan Zhang, Sidong Xiong, Jianqing Xu, Dongming Zhou
Since 2013, the outbreak or sporadic infection of a new reassortant H7N9 influenza virus in China has resulted in hundreds of deaths and thousands of illnesses. An H7N9 vaccine is urgently needed, as a licensed human vaccine against H7N9 influenza is currently not available. Here, we developed a recombinant adenovirus-based vaccine, AdC68-H7HA, by cloning the H7N9 haemagglutinin (HA) gene into the chimpanzee adenoviral vector AdC68. The efficacy of AdC68-H7HA was evaluated in mice as well as guinea pigs. For comparison, an H7N9 DNA vaccine based on HA was also generated and tested in mice and guinea pigs...
May 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28498980/fowl-adenovirus-serotype-4-epidemiology-pathogenesis-diagnostic-detection-and-vaccine-strategies
#17
P H Li, P P Zheng, T F Zhang, G Y Wen, H B Shao, Q P Luo
Fowl adenovirus (FAdV) serotype-4 is highly pathogenic for chickens, especially for broilers aged 3 to 5 wk, and it has emerged as one of the foremost causes of economic losses to the poultry industry in the last 30 years. The liver is a major target organ of FAdV-4 infections, and virus-infected chickens usually show symptoms of hydropericardium syndrome. The virus is very contagious, and it is spread both vertically and horizontally. It can be isolated from infected liver homogenates and detected by several laboratory diagnostic methods (including an agar gel immunodiffusion test, indirect immunofluorescence assays, counterimmunoelectrophoresis, enzyme-linked immunosorbent assays, restriction endonuclease analyses, polymerase chain reaction (PCR), real-time PCR, and high-resolution melting-curve analyses)...
May 12, 2017: Poultry Science
https://www.readbyqxmd.com/read/28498840/a-third-generation-vaccine-for-human-visceral-leishmaniasis-and-post-kala-azar-dermal-leishmaniasis-first-in-human-trial-of-chad63-kh
#18
Mohamed Osman, Anoop Mistry, Ada Keding, Rhian Gabe, Elizabeth Cook, Sarah Forrester, Rebecca Wiggins, Stefania Di Marco, Stefano Colloca, Loredana Siani, Riccardo Cortese, Deborah F Smith, Toni Aebischer, Paul M Kaye, Charles J Lacey
BACKGROUND: Visceral leishmaniasis (VL or kala azar) is the most serious form of human leishmaniasis, responsible for over 20,000 deaths annually, and post kala azar dermal leishmaniasis (PKDL) is a stigmatizing skin condition that often occurs in patients after successful treatment for VL. Lack of effective or appropriately targeted cell mediated immunity, including CD8+ T cell responses, underlies the progression of VL and progression to PKDL, and can limit the therapeutic efficacy of anti-leishmanial drugs...
May 12, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28497324/erratum-to-the-presence-of-norovirus-and-adenovirus-on-environmental-surfaces-in-relation-to-the-hygienic-level-in-food-service-operations-associated-with-a-suspected-gastroenteritis-outbreak
#19
Leena Maunula, M Rönnqvist, R Åberg, J Lunden, M Nevas
No abstract text is available yet for this article.
May 11, 2017: Food and Environmental Virology
https://www.readbyqxmd.com/read/28496987/effect-of-health-foods-on-cytochrome-p450-mediated-drug-metabolism
#20
Takamitsu Sasaki, Yu Sato, Takeshi Kumagai, Kouichi Yoshinari, Kiyoshi Nagata
BACKGROUND: Health foods have been widely sold and consumed in Japan. There has been an increase in reports of adverse effects in association with the expanding health food market. While health food-drug interactions are a particular concern from the viewpoint of safe and effective use of health foods, information regarding such interactions is limited owing to the lack of established methods to assess the effects of health food products on drug metabolism. We therefore developed cells that mimicked the activities of cytochrome P450 1A2 (CYP1A2), CYP2C9, CYP2C19, CYP2D6, and CYP3A4, which strongly contribute to drug metabolism in human hepatocytes, and established a system to assess the inhibitory activity of health foods toward P450-mediated metabolism...
2017: Journal of Pharmaceutical Health Care and Sciences
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