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https://www.readbyqxmd.com/read/27910805/ebola-virus-vaccines-where-do-we-stand
#1
REVIEW
Vincent Pavot
The recent outbreak of Ebola virus disease in West Africa has led to more than 11,000 deaths, with a peak in mortality from August through December of 2014. A meeting convened by the World Health Organization (WHO) in September 2014, concluded that an urgent unmet need exists for efficacy and safety testing of the Ebola virus vaccine candidates and that clinical trials should be expedited. These vaccines could be used both in an outbreak setting and to provide long-term protection in populations at risk of sporadic outbreaks...
October 28, 2016: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/27910048/gene-transfer-in-isolated-adult-cardiomyocytes
#2
Kjetil Hodne, David B Lipsett, William E Louch
During the past few decades, gene delivery using recombinant virus has made tremendous progress. With a higher than 80 % transduction efficiency, even in non-dividing cells, viral transduction has become the method of choice for efficient gene transfer into cardiomyocytes. However, in vitro gene delivery is dependent on a robust cell isolation protocol, as prolonged cultivation is needed to initiate gene expression and target specific cellular processes. This chapter describes some of the important steps that need to be considered for successful in vitro gene transfer into adult cardiomyocytes...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27909096/excitatory-hindbrain-forebrain-communication-is-required-for-cisplatin-induced-anorexia-and-weight-loss
#3
Amber L Alhadeff, Ruby A Holland, Huiyuan Zheng, Linda Rinaman, Harvey J Grill, Bart C De Jonghe
: Cisplatin chemotherapy is commonly used to treat cancer despite severe energy balance side effects. In rats, cisplatin activates nucleus tractus solitarius (NTS) projections to the lateral parabrachial nucleus (lPBN), and calcitonin-gene related peptide (CGRP) projections from the lPBN to the central nucleus of the amygdala (CeA). We previously demonstrated that CeA glutamate receptor signaling mediates cisplatin-induced anorexia and body weight loss. Here, we use neuroanatomical tracing, immunofluorescence and confocal imaging to demonstrate that virtually all NTS→lPBN and lPBN→CeA CGRP projections co-express vesicular glutamate transporter 2 (VGLUT2), providing evidence that excitatory projections mediate cisplatin-induced energy balance dysregulation...
December 1, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27906162/activation-of-myeloid-and-endothelial-cells-by-cd40l-gene-therapy-supports-t-cell-expansion-and-migration-into-the-tumor-microenvironment
#4
E Eriksson, R Moreno, I Milenova, L Liljenfeldt, L C Dieterich, L Christiansson, H Karlsson, G Ullenhag, S Mangsbo, A Dimberg, R Alemany, A Loskog
CD40 is an interesting target in cancer immunotherapy due to its ability to stimulate Th1 immunity via maturation of dendritic cells and to drive M2 to M1 macrophage differentiation. Pancreatic cancer has a high M2 content that has shown responsive to anti-CD40 agonist therapy and CD40 may thus be a suitable target for immune activation in these patients. In this study, a novel oncolytic adenovirus armed with a trimerized membrane-bound extracellular CD40L (TMZ-CD40L) was evaluated as a treatment of pancreatic cancer...
December 1, 2016: Gene Therapy
https://www.readbyqxmd.com/read/27905101/a-review-on-antiviral-activity-of-the-himalayan-medicinal-plants-traditionally-used-to-treat-bronchitis-and-related-symptoms
#5
REVIEW
Rahila Amber, Muhammad Adnan, Akash Tariq, Sakina Mussarat
OBJECTIVES: Bronchitis is a common respiratory tract infection of humans mainly caused by influenza virus, rhinovirus, adenovirus, coronavirus and respiratory syncytial virus. The aim of this review was to gather fragmented literature on ethnomedicinal plants used against bronchitis in the Himalayan region and their in-vitro validation against bronchitis causing viral pathogens. KEY FINDINGS: Present review contains ethnomedicines of total 55 plants from different countries of the Himalayas...
December 1, 2016: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/27903802/a-protective-role-for-il-1-signaling-during-mouse-adenovirus-type-1-induced-encephalitis
#6
Luiza A Castro-Jorge, Carla Pretto, Asa Smith, Oded Foreman, Kelly E Carnahan, Katherine R Spindler
: IL-1β, an inflammatory cytokine and IL-1 receptor ligand, has diverse activities in the brain. We examined whether IL-1 signaling contributes to the encephalitis observed in mouse adenovirus type 1 (MAV-1) infection, using mice lacking the IL-1 receptor, Il1r1(-/-) Il1r1(-/-) mice had lower survival, higher disruption of the blood-brain barrier (BBB), higher brain viral loads, and higher brain inflammatory cytokines and chemokines than control C57BL/6 mice. We also examined infections of mice defective in IL-1β production (Pycard(-/-)mice) and mice defective in trafficking of TLRs to the endosome (Unc93b1(-/-) mice)...
November 30, 2016: Journal of Virology
https://www.readbyqxmd.com/read/27903788/treatment-of-adenoviral-acute-respiratory-distress-syndrome-using-cidofovir-with-extracorporeal-membrane-oxygenation-case-series-and-literature-review
#7
Minhyeok Lee, Seulgi Kim, Oh Jung Kwon, Ji Hye Kim, Inbeom Jeong, Ji Woong Son, Moon Jun Na, Yoo Sang Yoon, Hyun Woong Park, Sun Jung Kwon
Adenovirus infections are associated with respiratory (especially upper respiratory) infection and gastrointestinal disease and occur primarily in infants and children. Although rare in adults, severe lower respiratory adenovirus infections including pneumonia are reported in specific populations, such as military recruits and immunocompromised patients. Antiviral treatment is challenging due to limited clinical experience and lack of well-controlled randomized trials. Several previously reported cases of adenoviral pneumonia showed promising efficacy of cidofovir...
November 30, 2016: Journal of Intensive Care Medicine
https://www.readbyqxmd.com/read/27903748/hepatic-expression-of-adenovirus-36-e4orf1-improves-glycemic-control-and-promotes-glucose-metabolism-via-akt-activation
#8
Travis B McMurphy, Wei Huang, Run Xiao, Xianglan Liu, Nikhil V Dhurandhar, Lei Cao
Considering that impaired proximal insulin signaling is linked with diabetes, approaches that enhance glucose disposal independent of insulin signaling are attractive. In vitro data indicate that the E4ORF1 peptide derived from human adenovirus 36 (Ad36) interacts with cells from adipose tissue, skeletal muscle and liver to enhance glucose disposal, independent of proximal insulin signaling. Adipocyte-specific expression of Ad36E4ORF1 improved hyperglycemia in mice. To determine the hepatic interaction of Ad36E4ORF1 in enhancing glycemic control, we expressed E4ORF1 of Ad36 or adenovirus 5, or fluorescent tag alone using recombinant adeno-associated viral vector in the livers of three mouse models...
November 30, 2016: Diabetes
https://www.readbyqxmd.com/read/27903079/preclinical-evaluation-of-a-replication-deficient-recombinant-adenovirus-serotype-5-vaccine-expressing-guanylate-cyclase-c-and-the-padre-t-helper-epitope
#9
Adam Eugene Snook, Trevor R Baybutt, Terry Hyslop, Scott Arthur Waldman
There is an unmet need for improved therapeutics for colorectal cancer, the second leading cause of cancer mortality worldwide. Adjuvant chemotherapy only marginally improves survival in some patients, and has no benefit in others, underscoring the clinical opportunity for novel immunotherapeutic approaches to improve survival in colorectal cancer. In that context, guanylate cyclase C (GUCY2C) is an established biomarker and therapeutic target for metastatic colorectal cancer with immunological characteristics that promote durable antitumor efficacy without autoimmunity...
November 30, 2016: Human Gene Therapy Methods
https://www.readbyqxmd.com/read/27902477/astragalus-polysaccharide-restores-autophagic-flux-and-improves-cardiomyocyte-function-in-doxorubicin-induced-cardiotoxicity
#10
Yuan Cao, Tao Shen, Xiuqing Huang, Yajun Lin, Beidong Chen, Jing Pang, Guoping Li, Que Wang, Sylvia Zohrabian, Chao Duan, Yang Ruan, Yong Man, Shu Wang, Jian Li
Doxorubicin (adriamycin), an anthracycline antibiotic, is commonly used to treat many types of solid and hematological malignancies. Unfortunately, clinical usage of doxorubicin is limited due to the associated acute and chronic cardiotoxicity. Previous studies demonstrated that Astragalus polysaccharide (APS), the extracts of Astragalus membranaceus, had strong anti-tumor activities and anti-inflammatory effects. However, whether APS could mitigate chemotherapy-induced cardiotoxicity is unclear thus far. We used a doxorubicin-induced neonatal rat cardiomyocyte injury model and a mouse heart failure model to explore the function of APS...
November 25, 2016: Oncotarget
https://www.readbyqxmd.com/read/27902341/corrigendum-to-hydropericardium-syndrome-outbreak-caused-by-fowl-adenovirus-serotype-4-in-china-in-2015
#11
Yu-Juan Niu, Wei Sun, Gui-Hua Zhang, Ya-Jin Qu, Peng-Fei Wang, Hong-Lei Sun, Leyi Wang, Yi-Hong Xiao, Si-Dang Liu
No abstract text is available yet for this article.
October 2016: Journal of General Virology
https://www.readbyqxmd.com/read/27901098/tumor-specific-delivery-of-biologics-by-a-novel-t-cell-line-hozot
#12
Teppei Onishi, Hiroshi Tazawa, Yuuri Hashimoto, Makoto Takeuchi, Takeshi Otani, Shuji Nakamura, Fuminori Sakurai, Hiroyuki Mizuguchi, Hiroyuki Kishimoto, Yuzo Umeda, Yasuhiro Shirakawa, Yasuo Urata, Shunsuke Kagawa, Toshiyoshi Fujiwara
"Cell-in-cell" denotes an invasive phenotype in which one cell actively internalizes in another. The novel human T-cell line HOZOT, established from human umbilical cord blood, was shown to penetrate a variety of human cancer cells but not normal cells. Oncolytic viruses are emerging as biological therapies for human cancers; however, efficient viral delivery is limited by a lack of tumor-specific homing and presence of pre-existing or therapy-induced neutralizing antibodies. Here, we report a new, intriguing approach using HOZOT cells to transmit biologics such as oncolytic viruses into human cancer cells by cell-in-cell invasion...
November 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27901062/assessing-the-feasibility-of-fly-based-surveillance-of-wildlife-infectious-diseases
#13
Constanze Hoffmann, Melanie Stockhausen, Kevin Merkel, Sébastien Calvignac-Spencer, Fabian H Leendertz
Monitoring wildlife infectious agents requires acquiring samples suitable for analyses, which is often logistically demanding. A possible alternative to invasive or non-invasive sampling of wild-living vertebrates is the use of vertebrate material contained in invertebrates feeding on them, their feces, or their remains. Carrion flies have been shown to contain vertebrate DNA; here we investigate whether they might also be suitable for wildlife pathogen detection. We collected 498 flies in Taï National Park, Côte d'Ivoire, a tropical rainforest and examined them for adenoviruses (family Adenoviridae), whose DNA is frequently shed in feces of local mammals...
November 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27901019/additives-for-vaccine-storage-to-improve-thermal-stability-of-adenoviruses-from-hours-to-months
#14
Maria Pelliccia, Patrizia Andreozzi, Jayson Paulose, Marco D'Alicarnasso, Valeria Cagno, Manuela Donalisio, Andrea Civra, Rebecca M Broeckel, Nicole Haese, Paulo Jacob Silva, Randy P Carney, Varpu Marjomäki, Daniel N Streblow, David Lembo, Francesco Stellacci, Vincenzo Vitelli, Silke Krol
Up to 80% of the cost of vaccination programmes is due to the cold chain problem (that is, keeping vaccines cold). Inexpensive, biocompatible additives to slow down the degradation of virus particles would address the problem. Here we propose and characterize additives that, already at very low concentrations, improve the storage time of adenovirus type 5. Anionic gold nanoparticles (10(-8)-10(-6) M) or polyethylene glycol (PEG, molecular weight ∼8,000 Da, 10(-7)-10(-4) M) increase the half-life of a green fluorescent protein expressing adenovirus from ∼48 h to 21 days at 37 °C (from 7 to >30 days at room temperature)...
November 30, 2016: Nature Communications
https://www.readbyqxmd.com/read/27899607/the-adenovirus-l4-22k-protein-regulates-transcription-and-rna-splicing-via-a-sequence-specific-single-stranded-rna-binding
#15
Susan Lan, Wael Kamel, Tanel Punga, Göran Akusjärvi
The adenovirus L4-22K protein both activates and suppresses transcription from the adenovirus major late promoter (MLP) by binding to DNA elements located downstream of the MLP transcriptional start site: the so-called DE element (positive) and the R1 region (negative). Here we show that L4-22K preferentially binds to the RNA form of the R1 region, both to the double-stranded RNA and the single-stranded RNA of the same polarity as the nascent MLP transcript. Further, L4-22K binds to a 5'-CAAA-3' motif in the single-stranded RNA, which is identical to the sequence motif characterized for L4-22K DNA binding...
November 29, 2016: Nucleic Acids Research
https://www.readbyqxmd.com/read/27899161/multiple-molecular-detection-of-respiratory-viruses-and-associated-signs-of-airway-inflammation-in-racehorses
#16
Nadia Doubli-Bounoua, Eric A Richard, Albertine Léon, Pierre-Hugues Pitel, Stéphane Pronost, Guillaume Fortier
BACKGROUND: The potential involvement of viruses in inflammatory airway disease (IAD) was previously investigated through either serology or PCR from nasopharyngeal swabs (NS). The aims of this study were to determine the prevalence and incidence of viral genome detection by qPCR in the equine airways, and their association with respiratory clinical signs. METHODS: Both NS and tracheal washes (TW) were collected monthly on 52 Standardbred racehorses at training, over 27 consecutive months (581 samples)...
November 29, 2016: Virology Journal
https://www.readbyqxmd.com/read/27895788/effects-of-microrna-21-on-the-biological-functions-of-t-cell-acute-lymphoblastic-lymphoma-leukemia
#17
Cunzhen Shi, Xudong Zhang, Xin Li, Lei Zhang, Ling Li, Zhenchang Sun, Xiaorui Fu, Jingjing Wu, Yu Chang, Wencai Li, Qingjiang Chen, Mingzhi Zhang
Previous studies have demonstrated that microRNA-21 (miR-21) is an oncogene and is significantly upregulated in tumor tissue. However, its association with T-cell acute lymphoblastic lymphoma/leukemia (T-ALL) remains poorly understood. The aim of the present study was to investigate the effects of miR-21 on T-ALL cells by constructing Jurkat cells infected with recombinant adenovirus adv-miR-21 or adv-anti-miR-21. In addition, the target gene of miR-21 was identified by reverse transcription-quantitative polymerase chain reaction and western blotting...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27895726/adenovirus-mediated-interleukin-21-gene-transfer-enhances-antitumor-immunity-and-reduces-tumorigenicity-of-hepa1-6-in-mice
#18
Jiyu Ju, Lina Wang, Dalin Di, Weiling Xiao, Meiyu Peng, Yishuai Liu, Xiaoyan Fu, Chunling Zhao, Xuebin Qin
In the present study, adenovirus-mediated interleukin 21 (Ad5-IL-21-EGFP) gene expression was induced in Hepa1-6 cells to investigate whether IL-21 was capable of enhancing antitumor immunity and reducing tumorigenicity of Hepa1-6 in a mouse model. Mice were inoculated intradermally into the right flank with Hepa1-6 cells or Hepa1-6 cells infected with Ad5 or Ad5-IL-21. Four weeks later, the mice were sacrificed humanely, and the tumor volume, tumor weight and mouse spleen index were measured. The levels of IL-21, IL-4 and interferon (IFN)-γ levels in mouse serum and tumor tissues were detected by enzyme-linked immunosorbent assay (ELISA) and immunohistochemistry...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27895620/excessive-cytosolic-dna-fragments-as-a-potential-trigger-of-graves-disease-an-encrypted-message-sent-by-animal-models
#19
REVIEW
Yuqian Luo, Aya Yoshihara, Kenzaburo Oda, Yuko Ishido, Koichi Suzuki
Graves' hyperthyroidism is caused by autoantibodies directed against the thyroid-stimulating hormone receptor (TSHR) that mimic the action of TSH. The establishment of Graves' hyperthyroidism in experimental animals has proven to be an important approach to dissect the mechanisms of self-tolerance breakdown that lead to the production of thyroid-stimulating TSHR autoantibodies (TSAbs). "Shimojo's model" was the first successful Graves' animal model, wherein immunization with fibroblasts cells expressing TSHR and a major histocompatibility complex (MHC) class II molecule, but not either alone, induced TSAb production in AKR/N (H-2(k)) mice...
2016: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/27895465/oncolytic-adenovirus-expressing-interleukin-18-improves-antitumor-activity-of-dacarbazine-for-malignant-melanoma
#20
Chunhua Yang, Hang Cao, Ning Liu, Kai Xu, Meng Ding, Li-Jun Mao
Conditionally replicating adenoviruses have emerged as novel therapeutic agents for cancer. This study aimed to evaluate synergistic antitumor activity of replication-competent adenovirus armed with interleukin (IL)-18 (ZD55-IL-18) and dacarbazine (DTIC) against melanoma. Melanoma A375 cells or nude mouse tumor xenografts were treated with ZD55-IL-18 alone or together with DTIC. The results showed that ZD55-IL-18 competently replicated in A375 cells and expressed IL-18, and these were not affected by DTIC. ZD55-IL-18 enhanced the cytotoxicity of DTIC accompanied by increased apoptosis...
2016: Drug Design, Development and Therapy
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