title: Comparative quantitative analysis of 14 types of human papillomavirus by real-time polymerase chain reaction monitoring Invader reaction (Q-Invader assay).
abstract: Human papillomavirus (HPV) is associated with several cervical diseases. A simple, rapid, cost-effective assay for identifying viral genotypes would greatly aid efforts for early detection and disease prevention. A real-time polymerase chain reaction monitoring Invader reaction assay (Q-Invader assay) was developed for genotyping and comparative quantitative analysis of 14 high-risk HPV genotypes (16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59, 67, and 68). A total of 131 cervical samples containing HPV in Japan were examined by Q-Invader assay, and the results were compared with those from sequencing with consensus and genotype-specific primers. Genotypes determined by Q-Invader agreed with those of sequencing in all samples. Coinfections with multiple high-risk genotypes were correctly identified by Q-Invader assay in 27 samples. In addition, the relative ratios of the genotypes were determined. Thus, Q-Invader assay is a useful tool for genotyping and comparative quantitative analysis of high-risk HPV types.
authors.affiliation: Development of Clinical Genomics, BML, Inc., Saitama 350-1101, Japan. tado-k@bml.co.jp
authors.forename: Kenichi
authors.initials: K
authors.lastname: Tadokoro
authors.forename: Yuki
authors.initials: Y
authors.lastname: Akutsu
authors.forename: Kazuya
authors.initials: K
authors.lastname: Tanaka
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Saito
authors.forename: Toshikazu
authors.initials: T
authors.lastname: Yamaguchi
authors.forename: Toru
authors.initials: T
authors.lastname: Egashira
authors.forename: Isamu
authors.initials: I
authors.lastname: Ishiwata
authors.forename: Takashi
authors.initials: T
authors.lastname: Hara
mesh_terms: D052685:Alphapapillomavirus / Q000235:genetics*; D006801:Humans; D030361:Papillomavirus Infections / Q000382:microbiology*; D016133:Polymerase Chain Reaction / Q000379:methods*; D012680:Sensitivity and Specificity; D017422:Sequence Analysis, DNA / Q000379:methods*