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https://www.readbyqxmd.com/read/29781359/rhabdoviruses-as-vaccine-platforms-for-infectious-disease-and-cancer
#1
Franz Zemp, Jahanara Rajwani, Douglas J Mahoney
The family Rhabdoviridae (RV) comprises a large, genetically diverse collection of single-stranded, negative sense RNA viruses from the order Mononegavirales. Several RV members are being developed as live-attenuated vaccine vectors for the prevention or treatment of infectious disease and cancer. These include the prototype recombinant Vesicular Stomatitis Virus (rVSV) and the more recently developed recombinant Maraba Virus, both species within the genus Vesiculoviridae. A relatively strong safety profile in humans, robust immunogenicity and genetic malleability are key features that make the RV family attractive vaccine platforms...
May 21, 2018: Biotechnology & Genetic Engineering Reviews
https://www.readbyqxmd.com/read/29779759/correlation-of-human-papilloma-virus-status-with-quantitative-perfusion-diffusion-metabolic-imaging-parameters-in-the-oral-cavity-and-oropharyngeal-squamous-cell-carcinoma-comparison-of-primary-tumour-sites-and-metastatic-lymph-nodes
#2
M Han, S J Lee, D Lee, S Y Kim, J W Choi
AIM: To investigate the differences in perfusion/diffusion/metabolic imaging parameters according to human papilloma virus (HPV) status in the oral cavity and oropharyngeal squamous cell carcinoma (OC-OPSCC), separately in primary tumour sites and metastatic lymph nodes. MATERIALS AND METHODS: This retrospective study comprised 41 patients with primary OC-OPSCCs and 29 patients with metastatic lymph nodes. The perfusion/diffusion/metabolic imaging parameters were measured at the primary tumour and the largest ipsilateral metastatic lymph node...
May 17, 2018: Clinical Radiology
https://www.readbyqxmd.com/read/29775895/ozone-therapy-prevents-the-onset-of-dysplasia-in-hpv16-transgenic-mice-a-pre-clinical-efficacy-and-safety-analysis
#3
C Peirone, V F Mestre, B Medeiros-Fonseca, B Colaço, M J Pires, T Martins, R M Gil da Costa, M J Neuparth, R Medeiros, M M S M Bastos, J A Marques-Magallanes, P A Oliveira
Infection with high-risk human papillomavirus (HPV), most often HPV16, is associated with the development of anogenital and oropharyngeal cancers. Recently, ozone therapy was reported to have considerable efficacy against rabbit VX2 tumors, induced by the cottontail rabbit papillomavirus. The present study aims to determine whether similar results can be obtained in HPV16-transgenic mice, possibly paving the way for new therapeutic options against HPV-induced cancers. HPV16-transgenic and wild-type, female, 20 weeks-old mice were injected intraperitoneally with medical O3 /O2 (80░mL/kg, at O3 50░μg/mL), once a day, for 5 consecutive days...
May 15, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29773816/experimental-investigation-of-radiobiology-in-head-and-neck-cancer-cell-lines-as-a-function-of-hpv-status-by-mtt-assay
#4
Paul Reid, Puthenparampil Wilson, Yanrui Li, Loredana G Marcu, Alexander H Staudacher, Michael P Brown, Eva Bezak
Head and neck cancers (HNCs) are aggressive epithelial tumours frequently treated using radiation. HNC biology shows distinctions dependent on the oncologic involvement of the human papilloma virus (HPV). Clinically, HPV positive HNCs respond better to radiotherapy but few in vitro data demonstrate radiobiological differences explaining differences in clinical outcomes. This pilot study examined radiobiological responses to irradiation and subsequent regeneration in two HNC cell lines (HPV positive and negative)...
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29769722/bystander-cd8-t-cells-are-abundant-and-phenotypically-distinct-in-human-tumour-infiltrates
#5
Yannick Simoni, Etienne Becht, Michael Fehlings, Chiew Yee Loh, Si-Lin Koo, Karen Wei Weng Teng, Joe Poh Sheng Yeong, Rahul Nahar, Tong Zhang, Hassen Kared, Kaibo Duan, Nicholas Ang, Michael Poidinger, Yin Yeng Lee, Anis Larbi, Alexis J Khng, Emile Tan, Cherylin Fu, Ronnie Mathew, Melissa Teo, Wan Teck Lim, Chee Keong Toh, Boon-Hean Ong, Tina Koh, Axel M Hillmer, Angela Takano, Tony Kiat Hon Lim, Eng Huat Tan, Weiwei Zhai, Daniel S W Tan, Iain Beehuat Tan, Evan W Newell
Various forms of immunotherapy, such as checkpoint blockade immunotherapy, are proving to be effective at restoring T cell-mediated immune responses that can lead to marked and sustained clinical responses, but only in some patients and cancer types1-4 . Patients and tumours may respond unpredictably to immunotherapy partly owing to heterogeneity of the immune composition and phenotypic profiles of tumour-infiltrating lymphocytes (TILs) within individual tumours and between patients5,6 . Although there is evidence that tumour-mutation-derived neoantigen-specific T cells play a role in tumour control2,4,7-10 , in most cases the antigen specificities of phenotypically diverse tumour-infiltrating T cells are largely unknown...
May 16, 2018: Nature
https://www.readbyqxmd.com/read/29767614/differential-attenuation-of-marek-s-disease-virus-induced-tumours-and-late-marek-s-disease-virus-induced-immunosuppression
#6
Nik M Faiz, Aneg L Cortes, James S Guy, Sanjay M Reddy, Isabel M Gimeno
Marek's disease virus (MDV) is a herpesvirus that induces lymphoma and a variety of non-neoplastic syndromes in chickens. Furthermore, very virulent plus (vv+) MDVs induce a form of immunosuppression (late-MDV-IS) that might involve both neoplastic and non-neoplastic mechanisms. The objective of this study was to evaluate whether the attenuation of MDV-induced tumours and late-MDV-IS occurs simultaneously or can be dissociated. The immunosuppressive ability of three viruses derived from vv+ MDV strain 686 (wild-type 686, the somewhat attenuated molecular clone 686-BAC, and the nononcogenic molecular clone lacking the two copies of the oncogene meq 686-BACΔMEQ) was evaluated...
May 16, 2018: Journal of General Virology
https://www.readbyqxmd.com/read/29765150/phase-i-studies-of-azd1208-a-proviral-integration-moloney-virus-kinase-inhibitor-in-solid-and-haematological-cancers
#7
Jorge Cortes, Kenji Tamura, Daniel J DeAngelo, Johann de Bono, David Lorente, Mark Minden, Geoffrey L Uy, Hagop Kantarjian, Lisa S Chen, Varsha Gandhi, Robert Godin, Karen Keating, Kristen McEachern, Karthick Vishwanathan, Janet Elizabeth Pease, Emma Dean
BACKGROUND: Proviral integration Moloney virus (PIM) kinases (PIM1, 2 and 3) are overexpressed in several tumour types and contribute to oncogenesis. AZD1208 is a potent ATP-competitive PIM kinase inhibitor investigated in patients with recurrent or refractory acute myeloid leukaemia (AML) or advanced solid tumours. METHODS: Two dose-escalation studies were performed to evaluate the safety and tolerability, and to define the maximum tolerated dose (MTD), of AZD1208 in AML and solid tumours...
May 16, 2018: British Journal of Cancer
https://www.readbyqxmd.com/read/29759330/-who-classification-of-head-and-neck-tumours-2017-main-novelties-and-update-of-diagnostic-methods
#8
REVIEW
Victor Sarradin, Aurore Siegfried, Emmanuelle Uro-Coste, Jean-Pierre Delord
The publication of the new WHO classification of head and neck tumours in 2017 brought major modifications. Especially, a new chapter is dedicated to the oropharynx, focusing on the description of squamous cell carcinoma induced by the virus Human Papilloma Virus (HPV), and new entities of tumors are described in nasal cavities and sinuses. In this article are presented the novelties and main changes of this new classification, as well as the updates of the diagnostic methods (immunohistochemistry, cytogenetics or molecular biology)...
May 11, 2018: Bulletin du Cancer
https://www.readbyqxmd.com/read/29744126/htlv-1-atll-refractory-hypercalcaemia-and-hiv-1-co-infection
#9
Abdullah E Laher, Feroza Motara, Muhammed Moolla, Osman Ebrahim
Adult T-cell lymphoma/leukemia (ATLL) is a rare tumour of T-lymphocytes that is associated with human T-lymphotrophic virus type 1 (HTLV-1) infection as well as severe/refractory hypercalcaemia. Human immunodefficiency virus type 1 (HIV-1) infected individuals are at increased risk of acquiring co-infection with HTLV-1. We present the case of a 37 -year -old HIV-1 positive and antiretroviral therapy naive woman who was admitted to the ICU with delirium, a generalised maculopapular rash, severe hypercalcaemia of 4...
January 2018: Oxford Medical Case Reports
https://www.readbyqxmd.com/read/29743717/integrating-oncolytic-viruses-in-combination-cancer-immunotherapy
#10
REVIEW
Praveen K Bommareddy, Megha Shettigar, Howard L Kaufman
Oncolytic viruses can be usefully integrated into tumour immunotherapies, as they target multiple steps within the cancer-immunity cycle. Oncolytic viruses directly lyse tumour cells, leading to the release of soluble antigens, danger signals and type I interferons, which drive antitumour immunity. In addition, some oncolytic viruses can be engineered to express therapeutic genes or can functionally alter tumour-associated endothelial cells, further enhancing T cell recruitment into immune-excluded or immune-deserted tumour microenvironments...
May 9, 2018: Nature Reviews. Immunology
https://www.readbyqxmd.com/read/29743367/a-screen-for-epstein-barr-virus-proteins-that-inhibit-the-dna-damage-response-reveals-a-novel-histone-binding-protein
#11
Ting-Hin Ho, Justine Sitz, Qingtang Shen, Ariane Leblanc-Lacroix, Eric I Campos, Ivan Borozan, Edyta Marcon, Jack Greenblatt, Amelie Fradet-Turcotte, Dong-Yan Jin, Lori Frappier
To replicate and persist in human cells, linear double-stranded (ds) DNA viruses, such as Epstein-Barr virus (EBV), must overcome the host DNA damage response (DDR) that is triggered by the viral genomes. Since this response is necessary to maintain cellular genome integrity, its inhibition by EBV is likely an important factor in the development of cancers associated with EBV infection, including gastric carcinoma. Here we present the first extensive screen of EBV proteins that inhibit dsDNA break signaling...
May 9, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29743362/adenovirus-5-e1a-mediated-suppression-of-p53-via-fubp1
#12
Jasmine Rae Frost, Megan Mendez, Andrea Michelle Soriano, Leandro Crisostomo, Oladunni Olanubi, Sandi Radko, Peter Pelka
The Far Upstream Element Binding Protein 1 (FUBP1) was first identified as a regulator of the oncogene c-Myc via binding to the Far Upstream Element (FUSE) within the c-Myc promoter and activating expression of the gene. Recent studies have identified FUBP1 as a regulator of transcription, translation, and splicing via its DNA and RNA binding activities. Here we report the identification of FUBP1 as a novel binding partner of E1A. FUBP1 binds directly to E1A via the N-terminus (residues 1-82) and Conserved Region 3 (residues 139 to 204) of adenovirus 5 E1A...
May 9, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29739791/%C3%AE-np63%C3%AE-src-slug-signalling-axis-promotes-epithelial-to-mesenchymal-transition-in-squamous-cancers
#13
Kirtiman Srivastava, Adam Pickard, Stephanie G Craig, Gerard P Quinn, Shauna M Lambe, Jacqueline A James, Simon McDade, Dennis McCance
PURPOSE: To investigate the regulation of epithelial-to-mesenchymal transition (EMT) in  Head and Neck Squamous Cell Carcinoma (HNSCC) and its importance in tumour invasion. EXPERIMENTAL DESIGN: We use a 3D invasive organotypic raft culture model of human foreskin keratinocytes expressing the E6/E7 genes of the Human Papilloma Virus-16, coupled with bioinformatics and immunohistochemical analysis of patient samples to investigate  the role played by EMT in invasion and identify effectors and upstream regulatory pathways...
May 8, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29737459/safety-of-intra-articular-transplantation-of-lentivirally-transduced-mesenchymal-stromal-cells-for-haemophilic-arthropathy-in-a-non-human-primate
#14
Tsukasa Ohmori, Hiroaki Mizukami, Yuko Katakai, Sho Kawai, Hitoyasu Nakamura, Makoto Inoue, Tsugumine Shu, Hideharu Sugimoto, Yoichi Sakata
Joint bleeding and resultant arthropathy are major determinants of quality of life in haemophilia patients. We previously developed a mesenchymal stromal cell (MSC)-based treatment approach for haemophilic arthropathy in a mouse model of haemophilia A. Here, we evaluated the long-term safety of intra-articular injection of lentivirally transduced autologous MSCs in non-human primates. Autologous bone-marrow-derived MSCs transduced with a lentiviral vector expressing coagulation factor VIII (FVIII) were injected into the left knee joint of cynomolgus monkeys...
May 8, 2018: International Journal of Hematology
https://www.readbyqxmd.com/read/29729721/pleomorphic-malignant-mesothelioma-in-a-broiler-breeder-infected-with-avian-leucosis-virus-subgroup-j
#15
T Murakami, Y Sassa
Avian leucosis virus (ALV) is an oncogenic retrovirus that induces tumours including lymphoid leucosis and myeloid leucosis. Pleomorphic malignant mesothelioma and myelocytoma, which were thought to be induced by ALV subgroup J (ALV-J) infection, were identified in a 432-day-old broiler breeder. The bird showed no clinical signs; however, at necropsy examination there were multiple nodules in the alimentary tract. Microscopical analysis showed that these consisted of pleomorphic cells and myelocyte-like cells...
April 2018: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/29723998/the-ebv-encoded-oncoprotein-lmp1-induces-an-epithelial-to-mesenchymal-transition-emt-via-its-ctar1-domain-through-integrin-mediated-erk-mapk-signalling
#16
Mhairi A Morris, Louise Laverick, Wenbin Wei, Alexandra M Davis, Samantha O'Neill, Liam Wood, Jack Wright, Christopher W Dawson, Lawrence S Young
The Epstein⁻Barr virus (EBV)-encoded latent membrane protein 1 (LMP1) oncogene can induce profound effects on epithelial growth and differentiation including many of the features of the epithelial-to-mesenchymal transition (EMT). To better characterise these effects, we used the well-defined Madin Darby Canine Kidney (MDCK) epithelial cell model and found that LMP1 expression in these cells induces EMT as defined by characteristic morphological changes accompanied by loss of E-cadherin, desmosomal cadherin and tight junction protein expression...
May 1, 2018: Cancers
https://www.readbyqxmd.com/read/29720674/synergistic-antitumour-effects-of-rapamycin-and-oncolytic-reovirus
#17
Charles Comins, Guy Richard Simpson, William Rogers, Kate Relph, Kevin Harrington, Alan Melcher, Victoria Roulstone, Joan Kyula, Hardev Pandha
There are currently numerous oncolytic viruses undergoing clinical trial evaluation in cancer patients and one agent, Talimogene laherparepvec, has been approved for the treatment of malignant melanoma. This progress highlights the huge clinical potential of this treatment modality, and the focus is now combining these agents with conventional anticancer treatments or agents that enhance viral replication, and thereby oncolysis, in the tumour microenvironment. We evaluated the combination of reovirus with rapamycin in B16F10 cell, a murine model of malignant melanoma, based on potential mechanisms by which mTOR inhibitors might enhance viral oncolysis...
May 3, 2018: Cancer Gene Therapy
https://www.readbyqxmd.com/read/29718992/analysis-of-risk-factors-associated-with-hepatocellular-carcinoma-in-black-south-africans-2000-2012
#18
Daniel Mak, Chantal Babb de Villiers, Charles Chasela, Margaret I Urban, Anna Kramvis
OBJECTIVE: The aims of this study were to determine the prevalence of risk factors associated with hepatocellular carcinoma (HCC) in black adult South Africans and to estimate the size of the associated risks. METHODS: A case-control analysis of 150 black South African patients (aged 18-75 years) with HCC-who were a subset of patients recruited for the Johannesburg Cancer Case Control Study 2000 to 2012-was undertaken. The association between this tumour and hepatitis B/C virus infections, and human immunodeficiency virus (HIV) mono- and co-infections was investigated...
2018: PloS One
https://www.readbyqxmd.com/read/29704384/epstein-barr-virus-infection-in-b-cell-non-hodgkin-s-lymphomas-of-the-oral-and-maxillofacial-region-is-there-any-evidence
#19
L M Abdelrahim, S C Peh, T G Kallarakkal
INTRODUCTION: Epstein-Barr virus (EBV) might be an aetiological agent involved in the pathogenesis of certain Non-Hodgkin's Lymphomas (NHLs). EBV infection has been diagnosed by serologic testing within the tumour biopsies of patients with NHL. However, the association between EBV and NHL is inconsistent with a preference for certain anatomic sites, histologic subtypes and immunosuppressed patients. The objective of this study was to characterise the B-cell NHLs of the oral cavity and maxillofacial region using histological and immunophenotypical techniques and to determine its association with EBV infection...
April 2018: Malaysian Journal of Pathology
https://www.readbyqxmd.com/read/29695749/oncolytic-viruses-as-engineering-platforms-for-combination-immunotherapy
#20
REVIEW
Kwame Twumasi-Boateng, Jessica L Pettigrew, Y Y Eunice Kwok, John C Bell, Brad H Nelson
To effectively build on the recent successes of immune checkpoint blockade, adoptive T cell therapy and cancer vaccines, it is critical to rationally design combination strategies that will increase and extend efficacy to a larger proportion of patients. For example, the combination of anti-cytotoxic T lymphocyte-associated antigen 4 (CTLA4) and anti-programmed cell death protein 1 (PD1) immune checkpoint inhibitors essentially doubles the response rate in certain patients with metastatic melanoma. However, given the heterogeneity of cancer, it seems likely that even more complex combinations of immunomodulatory agents may be required to obtain consistent, durable therapeutic responses against a broad spectrum of cancers...
April 25, 2018: Nature Reviews. Cancer
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