PMID- 15364272 OWN - NLM STAT- MEDLINE DCOM- 20041210 LR - 20061115 IS - 1386-6532 (Print) IS - 1386-6532 (Linking) VI - 31 IP - 2 DP - 2004 Oct TI - Detection of hepatitis C virus by a user-developed reverse transcriptase-PCR and use of amplification products for subsequent genotyping. PG - 148-52 AB - BACKGROUND: Detection, quantitation and genotyping of hepatitis C virus (HCV) are important in selecting appropriate therapy. Current commercially available HCV genotyping kits, including sequencing-based TRUGENE HCV 5'NC and hybridization-based INNO-LiPA HCV II assays, rely on amplification products (amplicons) generated by HCV reverse-transcriptase (RT)-PCR methods such as the Roche AMPLICOR HCV test. METHODS: We developed a one-step RT-PCR assay to amplify and detect HCV RNA, and the resulting amplicons were used for HCV genotyping (TRUGENE). A total of 142 clinical samples were used to compare results from the RT-PCR/TRUGENE assay and those generated by the COBAS AMPLICOR and INNO-LiPA tests. RESULTS: Eighty-seven of 108 plasma specimens which were positive by AMPLICOR were also positive by the user-developed RT-PCR, giving a sensitivity of 100.0%. The RT-PCR detected 2 of 21 AMPLICOR-negative specimens and none of 34 HCV-EIA-negative serum specimens, giving a specificity of 96.4%. The 87 amplicons from the RT-PCR yielded HCV genotypes. HCV genotype results from both TRUGENE and INNO-LiPA were all in agreement. The TRUGENE and INNO-LiPA assays identified 69 (79.3%) and 47 (54.0%) specimens, respectively at the subtype level. HCV subtype information agreed by both assays in 34 of 36 (99.4%) specimens. One specimen with HCV genotypes 2 and 4 by INNO-LiPA was classified as a single genotype 2 by TRUGENE. CONCLUSION: Our data showed that the user-developed RT-PCR has comparable sensitivity and specificity for the detection of HCV in clinical specimens. The amplicons generated by the RT-PCR can be used for HCV genotyping by the sequencing-based TRUGENE assay. FAU - Tang, Yi-Wei AU - Tang YW AD - Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN 37232, USA. yiwei.tang@vanderbilt.edu FAU - Li, Haijing AU - Li H FAU - Roberto, Ann AU - Roberto A FAU - Warner, Diane AU - Warner D FAU - Yen-Lieberman, Belinda AU - Yen-Lieberman B LA - eng PT - Comparative Study PT - Journal Article PL - Netherlands TA - J Clin Virol JT - Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology JID - 9815671 RN - 0 (DNA, Viral) SB - IM MH - Base Sequence MH - DNA, Viral/genetics MH - Genotype MH - Hepacivirus/*genetics/*isolation & purification MH - Hepatitis C/diagnosis/virology MH - Humans MH - Nucleic Acid Amplification Techniques MH - Reverse Transcriptase Polymerase Chain Reaction/*methods MH - Virology/methods EDAT- 2004/09/15 05:00 MHDA- 2004/12/16 09:00 CRDT- 2004/09/15 05:00 PHST- 2004/02/06 00:00 [revised] PHST- 2004/02/12 00:00 [accepted] PHST- 2004/09/15 05:00 [pubmed] PHST- 2004/12/16 09:00 [medline] PHST- 2004/09/15 05:00 [entrez] AID - S1386653204000484 [pii] AID - 10.1016/j.jcv.2004.02.010 [doi] PST - ppublish SO - J Clin Virol. 2004 Oct;31(2):148-52. doi: 10.1016/j.jcv.2004.02.010.