Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/131272
Title: Passive protection studies in mice with monoclonal antibodies directed against the non-structural protein NS3 of dengue 1 virus
Authors: Tan, C.H.-C.
Yap -., E.H. 
Singh, M.
Deubel, V.
Chan, Y.-C. 
Issue Date: 1990
Source: Tan, C.H.-C., Yap -., E.H., Singh, M., Deubel, V., Chan, Y.-C. (1990). Passive protection studies in mice with monoclonal antibodies directed against the non-structural protein NS3 of dengue 1 virus. Journal of General Virology 71 (3) : 745-749. ScholarBank@NUS Repository.
Abstract: Antibody-mediated enhancement of a dengue virus replication is thought to be a mechanism contributing to the pathogenesis of dengue haemorrhagic fever and dengue shock syndrome. Enhancement is associated with antibodies to structural components of the virus. To circumvent the problem of immune enhancement, studies to identify protective antigens of dengue virus have involved non-structural proteins. Passive and active protection against lethal dengue virus infection in mice have been demonstrated with the non-structural protein NS1. In this study, the dengue virus non-structural protein NS3 was examined in passive protection studies with monoclonal antibodies prepared against NS3 of dengue 1 virus (Hawaiian). Five monoclonal antibodies that were authenticated to be reactive to NS3 were used to immunize 13- to 14-day old mice intraperitoneally. Thereafter, the mice were challenged intracerebrally with 100 LD 50 of neurotropic dengue 1 virus and the survival indices of the mice were calculated. Significant decreases in survival indices (P < 0.05), indicating increases in survival times were observed with four of five monoclonal antibodies tested. Monoclonal antibodies to NS3 of dengue 1 virus are able to increase the survival time of mice challenge with a lethal dose of dengue 1 virus, although the mechanism remains to be defined.
Source Title: Journal of General Virology
URI: http://scholarbank.nus.edu.sg/handle/10635/131272
ISSN: 00221317
Appears in Collections:Staff Publications

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