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Updated: Oct 10, 2026
Optimization of a Quantitative Micro-neutralization Assay
Published on: December 14, 2016
Combined cell culture enzyme-linked immunosorbent assay for quantification of poliovirus neutralization- relevant
1Department of Molecular Biology, National Research Center, Dokki, Cairo, Egypt. afwahby@hotmail.com
Insights
A new combined cell culture enzyme-linked immunosorbent assay (CCC-ELISA) accurately measures neutralizing antipoliovirus antibodies in human sera. This rapid, reproducible method is comparable to traditional assays and useful for seroepidemiology.
Area of Science:
- Virology
- Immunology
- Biotechnology
Background:
- Poliovirus remains a global health concern, necessitating accurate methods for assessing population immunity.
- Traditional microneutralization assays for detecting antipoliovirus antibodies can be time-consuming and subjective.
Purpose of the Study:
- To develop and validate a novel combined cell culture enzyme-linked immunosorbent assay (CCC-ELISA) for quantifying neutralizing antipoliovirus antibodies in human sera.
- To evaluate the sensitivity, specificity, and reproducibility of the CCC-ELISA compared to established methods.
Main Methods:
- The CCC-ELISA was developed by measuring the binding of poliovirus types to BGM cells with varying serum dilutions.
- Titration curves were used to determine virus neutralization titers.
- Performance was assessed by comparing CCC-ELISA results with those from microneutralization assays using human sera.
Main Results:
- The CCC-ELISA demonstrated comparable sensitivity and specificity to the microneutralization assay.
- The assay proved to be non-subjective, rapid, and highly reproducible.
- Neutralizing antibody titers against all three poliovirus types were successfully measured.
Conclusions:
- The CCC-ELISA is a reliable and efficient method for measuring neutralizing antipoliovirus antibodies.
- Its objective and reproducible nature makes it suitable for large-scale seroepidemiological studies.
- This assay can effectively assess the humoral immune response to poliovirus infections or vaccinations.
Abstract:
A combined cell culture enzyme-linked immunosorbent assay (CCC-ELISA) was developed for measuring the neutralizing antipoliovirus antibodies in human sera. The binding of different concentrations of each of the three poliovirus types to BGM cells in the presence and absence of a constant dilution from each test and reference serum was measured in the CCC-ELISA. The titers of the viruses neutralized by each serum were measured with the titration curves and used for interpretation of neutralizing titers to the three poliovirus types. Analysis of human sera revealed that the sensitivity and specificity of the CCC-ELISA and the microneutralization assay were comparable. The CCC-ELISA is nonsubjective, rapid, and highly reproducible. Furthermore, the CCC-ELISA could potentially be used as a seroepidemiologic tool for assessment of the humoral response to the cell culture infectious viruses.
