کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6133731 1593474 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Generation and evaluation of avian leukosis virus subgroup J envelope glycoprotein recombinant pseudovirions
موضوعات مرتبط
علوم زیستی و بیوفناوری ایمنی شناسی و میکروب شناسی ویروس شناسی
پیش نمایش صفحه اول مقاله
Generation and evaluation of avian leukosis virus subgroup J envelope glycoprotein recombinant pseudovirions
چکیده انگلیسی
Retroviral and lentiviral vector pseudotypes (based on human immunodeficiency virus type 1, HIV-1) have been used for stable and safe gene transfer because of their broad host ranges and high mechanical strength. In the present study, a recombinant avian leukosis virus subgroup J (ALV-J) polypeptide pseudotyped with lentivirus membrane glycoproteins gp85 and gp37, HIV/env-ALV, was generated, characterized in vitro and evaluated for its ability to infect natural host cells. We optimized the newly developed micro-neutralization (MN) assay using recombinant pseudovirion HIV/env-ALV expressing enhanced green fluorescent protein and well-characterized sera from chickens with confirmed ALV-J disease or virus-free controls. HIV/env-ALV could infect CEF and DF-1 but not pk15, 293FT, MDCK or VERO E6 cells, therefore demonstrating a cellular tropism similar to the wild-type ALV-J. The MN assay indicated that the IC50 values of positive sera offered a considerable advantage in both speed and accuracy. These results suggest that this pseudotyped lentivirus is a good model for studying the functions of ALV-J env and that the MN assay is a reliable serological method for assessing antibody levels in investigating the actual status of the current ALV-J epidemic. These recombinant pseudovirions may prove to be useful for studying ALV-J biology in lower biosafety level laboratory environments, and also for the detection and quantification of neutralizing antibodies to ALV-J in a manner akin to ELISA assays, but that would also be applicable to other viruses.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Virological Methods - Volume 202, 15 June 2014, Pages 1-7
نویسندگان
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