Specific primer sets used to amplify by PCR the hepatitis B virus overlapping S/Pol region select different viral variants

Authors
Cuestas, María Luján; Mathet, Veronica Lidia; Oubiña, Jose Raul
Publication Year
2012
Language
English
Format
article
Status
Published version
Description
PCR detection of viral genomes has provided new insights into viral diagnosis. Nowadays, it is the most frequently used nucleic acid testing (qualitative and quantitative) technique. The aim of this study was to analyse the major circulating hepatitis B virus (HBV) variants PCR-amplified by three sets of primers in a patient infected with genotype E. The HBV S/Pol overlapping genomic region was amplified from the serum of an infected child using three primer sets previously described. Sequence analysis corresponding to the HBV S/Pol region revealed the presence of different viral populations depending on the set of primers used. D144A S-escape mutant was detected with two of the primer sets, while the rtL217R mutant within the Pol - conferring resistance to Adefovir - could be picked up with a different pair of primer sets. This study undoubtedly implies that the description of viral polymorphisms should be stated together with the sequence of the primers used for PCR amplification when studies of escape and/or antiviral-resistant HBV mutants are carried out.
Fil: Cuestas, María Luján. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Area Virologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Mathet, Veronica Lidia. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Area Virologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Oubiña, Jose Raul. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Area Virologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Subject
HEPATITIS B VIRUS
PRIMER SETS
VARIANTS
Inmunología
Medicina Básica
CIENCIAS MÉDICAS Y DE LA SALUD
Access level
Restricted access
License
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repository
CONICET Digital (CONICET)
Institution
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identifier
oai:ri.conicet.gov.ar:11336/67305