The immunoreactivity profile of different HCV genotypes on immunoblot assay and its implications in the development of diagnostic assays.
Asian Pac J Allergy Immunol
;
1997 Sep; 15(3): 133-40
Article
in English
| IMSEAR
| ID: sea-37055
ABSTRACT
The immunoreactivity profiles of plasma samples obtained from patients infected with different hepatitis C virus (HCV) genotypes were studied using immunoblot assay containing multiple HCV antigens. The immunoblot assay was found to be positive in 81.5% of 195 blood donors who had anti-HCV antibodies as detected by second generation enzyme immunoassays. The samples reacted preferentially with the viral core, NS3-1 and NS5 antigens, and these reactivities were not influenced by HCV genotype. However, the reactivities with NS3-2 and NS4 antigens varied depending on HCV genotypes. The samples from patients infected with HCV genotype 1 reacted well with NS3-2 and NS4 antigens whereas those with other genotypes did not. In addition, samples with the unclassified HCV genotype reacted poorly with all antigens, except NS3-1. This study demonstrates the importance of the core, NS3-1 and NS5 antigens in the detection of antibodies against HCV, especially in areas where more than one genotypes of HCV are present. It also demonstrates that there is a need for further improvement of the currently used assays as new HCV genotypes are recently discovered.
Full text:
Available
Index:
IMSEAR (South-East Asia)
Main subject:
Humans
/
RNA, Viral
/
Immunoblotting
/
Hepatitis C
/
Viral Nonstructural Proteins
/
Hepacivirus
/
Hepatitis C Antigens
/
Genotype
Language:
English
Journal:
Asian Pac J Allergy Immunol
Year:
1997
Type:
Article
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