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Genotype diversity of hepatitis C virus (HCV) in HCV‐associated liver disease patients in Indonesia
Author(s) -
Utama Andi,
Tania Navessa Padma,
Dhenni Rama,
Gani Rino Alvani,
Hasan Irsan,
Sanityoso Andri,
Lelosutan Syafruddin A. R.,
Martamala Ruswhandi,
Lesmana Laurentius Adrianus,
Sulaiman Ali,
Tai Susan
Publication year - 2010
Publication title -
liver international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.873
H-Index - 110
eISSN - 1478-3231
pISSN - 1478-3223
DOI - 10.1111/j.1478-3231.2010.02280.x
Subject(s) - ns5b , hepatitis c virus , genotype , hepatocellular carcinoma , virology , liver disease , cirrhosis , hepatitis c , medicine , hepacivirus , chronic liver disease , flaviviridae , virus , biology , genetics , gene
Abstract Background: Hepatitis C virus (HCV) genotype distribution in Indonesia has been reported. However, the identification of HCV genotype was based on 5′‐UTR or NS5B sequence. Aims: This study was aimed to observe HCV core sequence variation among HCV‐associated liver disease patients in Jakarta, and to analyse the HCV genotype diversity based on the core sequence. Methods: Sixty‐eight chronic hepatitis (CH), 48 liver cirrhosis (LC) and 34 hepatocellular carcinoma (HCC) were included in this study. HCV core variation was analysed by direct sequencing. Results: Alignment of HCV core sequences demonstrated that the core sequence was relatively varied among the genotype. Indeed, 237 bases of the core sequence could classify the HCV subtype; however, 236 bases failed to differentiate several subtypes. Based on 237 bases of the core sequences, the HCV strains were classified into genotypes 1 (subtypes 1a, 1b and 1c), 2 (subtypes 2a, 2e and 2f) and 3 (subtypes 3a and 3k). The HCV 1b (47.3%) was the most prevalent, followed by subtypes 1c (18.7%), 3k (10.7%), 2a (10.0%), 1a (6.7%), 2e (5.3%), 2f (0.7%) and 3a (0.7%). HCV 1b was the most common in all patients, and the prevalence increased with the severity of liver disease (36.8% in CH, 54.2% in LC and 58.8% in HCC). These results were similar to a previous report based on NS5B sequence analysis. Conclusion: Hepatitis C virus core sequence (237 bases) could identify the HCV subtype and the prevalence of HCV subtype based on core sequence was similar to those based on the NS5B region.