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Monday, September 26, 2011 10:48:48 PM
This work appears to identify details on viral replication in Ras active cells, and identifies the possibility of enhanced viral replication through exploitation of the (now identified) mechanisms.
Publication date is Nov 28, 2011, but a PDF can be downloaded now by Springer members.
Link: http://www.springerprotocols.com/Abstract/doi/10.1007/978-1-61779-340-0_12
Thanks rjc
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Exploring Host Factors that Impact Reovirus Replication, Dissemination, and Reovirus-Induced Cell Death in Cancer Versus Normal Cells in Culture
By: Maya Shmulevitz1, Patrick W. K. Lee2
Abstract
Oncolytic viruses, such as reovirus, offer a promising approach to cancer treatment. Concurrently, oncolytic viruses provide a valuable tool for deciphering unique attributes of cancer cells that support superior virus replication, cell death, or virus dissemination. Through our studies on various cancer cell lines, as well as isogenic cells with and without transformation by oncogenic Ras, we have identified at least four steps of virus replication that can be augmented in transformed cells. Ras transformation can support efficient reovirus uncoating during entry, production of progeny with high infectious capacity, and reovirus-induced apoptosis. Furthermore, Ras transformation also precludes interferon production following reovirus infection, permitting enhanced cell-to-cell virus spread. Methods that measure the efficiency of reovirus replication and dissemination described in this chapter can be used in combination with assorted cell culture systems to better understand the host factors that regulate reovirus oncolysis.
Affiliation(s): (1) Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, Alberta, Canada
(2) Department of Pathology and Microbiology & Immunology, Dalhousie University, Halifax, NS, Canada
Book Title: Oncolytic Viruses : Methods and Protocols
Series: Methods in Molecular Biology | Volume: 797 | Pub. Date: Nov-28-2011 | Page Range: 163-176 | DOI: 10.1007/978-1-61779-340-0_12
Subject: Infectious Diseases
Key Words: Oncolytic virus - Reovirus - Plaque titration - Immunohistochemistry -Apoptosis - Cell-to-cell spread - MAPK/ERK - Ras
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