Related Experiment Videos
Antigenic relationship between hantaviruses analysed by immunoprecipitation
H Sheshberadaran1, B Niklasson, E A Tkachenko
1Department of Virology, Karolinska Institute, Stockholm, Sweden.
The Journal of General Virology
|October 1, 1988
Summary
Hantavirus strains from Europe and Asia cluster into three distinct antigenic groups: nephropathia epidemica (NE)-type, Korean haemorrhagic fever (KHF)-type, and urban rat-type. The nucleocapsid protein is the main cross-reactive antigen, while glycoproteins show limited cross-reactivity.
Area of Science:
- Virology
- Immunology
- Epidemiology
Background:
- Hantaviruses cause hemorrhagic fever with renal syndrome (HFRS) globally.
- Understanding antigenic relationships is crucial for diagnosis and vaccine development.
Purpose of the Study:
- To investigate the antigenic relationships among seven hantavirus strains from diverse geographical locations.
- To correlate antigenic groupings with clinical manifestations of HFRS.
Main Methods:
- Radioimmunoprecipitation assays (RIPA) and indirect immunofluorescence tests (IFT) were employed.
- Animal immune sera and HFRS patient sera were used for serological analysis.
Main Results:
- Hantavirus strains grouped into three distinct antigenic types: NE-type, KHF-type, and urban rat-type.
- Nucleocapsid protein was the major cross-reactive antigen; G2 glycoprotein showed weak, and G1 glycoprotein showed minimal cross-reactivity.
- Patient sera showed differential reactivity to viral glycoproteins over time, while animal sera demonstrated reciprocal cross-reactivity between NE-type and KHF-type viruses.
Conclusions:
- Antigenic classification of hantaviruses aligns with clinical HFRS groupings.
- Nucleocapsid protein serves as a key antigen for hantavirus identification.
- Host species influence antibody responses, impacting serological cross-reactivity patterns.