Abstract
Dengue virus (DENV) is an emerging virus that threatens over two-third of the world’s population. The specific diagnosis of dengue infection by serology is based on assays that detect DENV-specific antibodies including neutralizing antibodies (Abs). Neutralizing Abs are an important, if not the main, mechanism of protection from natural dengue virus (DENV) infection as well. The current gold-standard assay for measuring neutralizing Ab responses against DENV is the plaque reduction neutralization assay (PRNT). However, this assay is slow and laborious and utilizes physiologically irrelevant cell lines. Here, we describe a relatively high-throughput, flow cytometry-based neutralization assay for DENV that has been optimized for use with a human monocytic suspension cell line, U937 + DC-SIGN, or the more commonly used adherent monkey kidney cells, Vero-81.
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Acknowledgments
We thank Anne Broadwater for excellent technical assistance. These studies were supported by a Pediatric Dengue Vaccine Initiative Targeted Research Grant and by National Institutes of Health Grant U54 AI057157 (PI: F. Sparling) from the Southeastern Regional Center of Excellence for Emerging Infections and Biodefense.
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de Alwis, R., de Silva, A.M. (2014). Measuring Antibody Neutralization of Dengue Virus (DENV) Using a Flow Cytometry-Based Technique. In: Padmanabhan, R., Vasudevan, S. (eds) Dengue. Methods in Molecular Biology, vol 1138. Humana Press, New York, NY. https://doi.org/10.1007/978-1-4939-0348-1_3
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DOI: https://doi.org/10.1007/978-1-4939-0348-1_3
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