Yellow Fever Virus Protein for Diagnosis and Vaccine Development
Author Information
Author(s): Maria CES Barros, Tatiane GCM Galasso, Antônio JM Chaib, Nicolas Degallier, Tatsuya Nagata, Bergmann M Ribeiro
Primary Institution: University of Brasília
Hypothesis
Can the yellow fever virus envelope protein expressed in insect cells be used for immunodetection in human sera?
Conclusion
The recombinant E protein expressed in insect cells is antigenically similar to the wild protein and may be useful for improved diagnosis and vaccine development.
Supporting Evidence
- Insect cells infected with the recombinant virus showed syncytium formation, a characteristic of flavivirus infection.
- The expressed E protein was confirmed by fluorescence microscopy.
- The recombinant protein detected antibodies in human sera from yellow fever-infected patients without cross-reacting with dengue virus sera.
Takeaway
Scientists made a part of the yellow fever virus in insect cells, and it can help doctors find out if someone has yellow fever and could be used to make a safer vaccine.
Methodology
The study involved constructing a recombinant baculovirus containing the yellow fever virus envelope gene, infecting insect cells, and testing the antigenicity of the expressed protein.
Limitations
The study was limited by the availability of yellow fever positive serum for testing.
Participant Demographics
Two patients diagnosed with yellow fever were included in the study.
Digital Object Identifier (DOI)
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