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Title: Using NS5B Sequencing for Hepatitis C Virus Genotyping Reveals Discordances with Commercial Platforms.
Authors: Chueca, Natalia
Rivadulla, Isidro
Lovatti, Rubén
Reina, Gabriel
Blanco, Ana
Fernandez-Caballero, Jose Angel
Cardeñoso, Laura
Rodriguez-Granjer, Javier
Fernandez-Alonso, Miriam
Aguilera, Antonio
Alvarez, Marta
Galán, Juan Carlos
García, Federico
metadata.dc.subject.mesh: Genotyping Techniques
Sequence Analysis, DNA
Viral Nonstructural Proteins
Issue Date: 20-Apr-2016
Abstract: We aimed to evaluate the correct assignment of HCV genotypes by three commercial methods-Trugene HCV genotyping kit (Siemens), VERSANT HCV Genotype 2.0 assay (Siemens), and Real-Time HCV genotype II (Abbott)-compared to NS5B sequencing. We studied 327 clinical samples that carried representative HCV genotypes of the most frequent geno/subtypes in Spain. After commercial genotyping, the sequencing of a 367 bp fragment in the NS5B gene was used to assign genotypes. Major discrepancies were defined, e.g. differences in the assigned genotype by one of the three methods and NS5B sequencing, including misclassification of subtypes 1a and 1b. Minor discrepancies were considered when differences at subtype levels, other than 1a and 1b, were observed. The overall discordance with the reference method was 34% for Trugene and 15% for VERSANT HCV2.0. The Abbott assay correctly identified all 1a and 1b subtypes, but did not subtype all the 2, 3, 4 and 5 (34%) genotypes. Major discordances were found in 16% of cases for Trugene HCV, and the majority were 1b- to 1a-related discordances; major discordances were found for VERSANT HCV 2.0 in 6% of cases, which were all but one 1b to 1a cases. These results indicated that the Trugene assay especially, and to a lesser extent, Versant HCV 2.0, can fail to differentiate HCV subtypes 1a and 1b, and lead to critical errors in clinical practice for correctly using directly acting antiviral agents.
metadata.dc.identifier.doi: 10.1371/journal.pone.0153754
Appears in Collections:Producción 2020

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