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Link to original content: https://pubmed.ncbi.nlm.nih.gov/7666046/
Antibodies that block virus attachment to Vero cells are a major component of the human neutralizing antibody response against dengue virus type 2 - PubMed Skip to main page content
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Comparative Study
. 1995 Apr;45(4):451-61.
doi: 10.1002/jmv.1890450417.

Antibodies that block virus attachment to Vero cells are a major component of the human neutralizing antibody response against dengue virus type 2

R T He  1 , B L Innis, A Nisalak, W Usawattanakul, S Wang, S Kalayanarooj, R Anderson
Affiliations
Comparative Study

Antibodies that block virus attachment to Vero cells are a major component of the human neutralizing antibody response against dengue virus type 2

R T He et al. J Med Virol. 1995 Apr.

Abstract

Epidemiological data strongly implicate a role for the host humoral immune response in both protection against and exacerbation of dengue virus-caused disease. In an effort to characterize elements of the normal human immune response against dengue virus we have addressed the issue of antibody-mediated neutralization of dengue virus. We show here the ability of both mouse monoclonal antibody 3H5 and human anti-dengue neutralizing sera to block binding of dengue-2 virus to monkey kidney (Vero) cells. Since Vero cells possess virus receptors but not Fc receptors we conclude that the major effect of host neutralizing antibodies is to block virus attachment to Vero cell dengue virus receptors. Analysis of 61 patient antisera yielded good correlation (Pearson's coefficient = 0.90; P < 0.001) between neutralizing activity and ability to block virus-cell attachment suggesting that antibody-mediated neutralization of dengue virus occurs primarily extracellularly and less by a postattachment mechanism as has been described for certain other viruses.

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