Development of a rapid assay system for detecting antibody-dependent enhancement of dengue virus infection
Issued Date
2023-01-01
Resource Type
ISSN
01660934
eISSN
18790984
Scopus ID
2-s2.0-85141320020
Pubmed ID
36328082
Journal Title
Journal of Virological Methods
Volume
311
Rights Holder(s)
SCOPUS
Bibliographic Citation
Journal of Virological Methods Vol.311 (2023)
Suggested Citation
Yamanaka A., Rattanaamnuaychai P., Matsuda M., Suzuki R., Shimizu J., Shioda T., Miyazaki K. Development of a rapid assay system for detecting antibody-dependent enhancement of dengue virus infection. Journal of Virological Methods Vol.311 (2023). doi:10.1016/j.jviromet.2022.114641 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/81985
Title
Development of a rapid assay system for detecting antibody-dependent enhancement of dengue virus infection
Other Contributor(s)
Abstract
Antibody-dependent enhancement (ADE) is one of the pathogenic mechanisms related to disease severity in dengue virus infection. Conventional assays for detecting ADE activity usually require several days. In this study, we established a rapid assay system to evaluate ADE activity in dengue-seropositive samples using single round infectious particles (SRIPs). Human Fc-gamma receptor-bearing cells (K562 and Mylc cells) were infected with SRIP antigen in the presence of human serum samples to measure ADE activity. Two assay protocols were introduced: (i) rapid assay with 5 h of incubation, and (ii) semi-rapid assay with 24 h of incubation. The rapid assay requires a large quantity of SRIP antigen and gives results in half a day. Although the semi-rapid assay requires slightly more than a day, it can be performed using only a small amount of SRIP. Interestingly, the range of the number of Mylc cells required for the semi-rapid assay was wider than that of K562 cells. Significant correlations were observed between the rapid and semi-rapid assays for both cell types. Although it is difficult to judge which protocol best reflects the current immune status in vivo, both assays could rapidly provide valuable information regarding the risk assessment for severe diseases.