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  • Title: [Detection and typing of human papilloma virus by polymerase chain reaction and hybridization assay in cervical samples with cytological abnormalities].
    Author: Ergünay K, Misirlioğlu M, Firat P, Tuncer ZS, Tuncer S, Yildiz I, Ustaçelebi S.
    Journal: Mikrobiyol Bul; 2008 Apr; 42(2):273-82. PubMed ID: 18697425.
    Abstract:
    Certain mucosa-tropic human papillomavirus (HPV) types are associated with carcinoma of the uterine cervix or its precursor lesions. In addition to cytological screening, early diagnosis and treatment of cervical carcinoma rely on sensitive detection and typing of HPV isolates. In this study, HPV detection and typing were performed in the cervical samples of patients with abnormal cytological evaluation. Forty randomly-selected cervical samples that comprise 18 ASC-US (Aypical Squamous Cells of Undetermined Significance), four AG-US (Aypical Glandular cells of Undetermined Significance), one ASC-H (Atypical Squamous Cells-can not exclude HSIL), one HSIL (High-grade Intraepithelial Lesion), 14 LSIL (Low-grade Intraepithelial Lesion), one adenocarcinoma and one squamous cell carcinoma, obtained by a commercial liquid-based cytology system (ThinPrep Pap Smear Method, Cytyc, USA), were included to the study. HPV-DNA detection were accomplished by L1 in-house polymerase chain reaction (PCR) performed using MY09/11 and GP5/6 primers along with a commercial real-time PCR (HeliosisTM HPV LC PCR Kit; Metis Biotechnology, Turkey) that detects HPV infections and HPV-16 via melting curve analysis. A commercial PCR-array hybridization test (Rapid HPV Genotyping MacroArray; HybriBio Inc, Hong Kong) that can identify 21 low and high risk HPV types was employed for typing. Viral DNA was detected in 35% (14/40) and 57.5% (23/40) of the samples by MY09/11 and GP5/6 primers, respectively. All in-house PCR positive samples were also positive in the real-time PCR assay. PCR-array hybridization assay provided typing results in 95.6% (22/23) of the PCR positive samples while one LSIL sample could not be typed by any of the methods used. High risk HPV types 16, 18, 31, 45, 52, 56, 58, 59,68 (65.8%); probable high risk type 53 (13.2%), low risk types 6, 42 and 81 (21%) were identified out of a total of 38 HPV isolates. Multiple infections with more than one HPV type were identified in 45.5% (10/22) of positive samples. High/probable high risk types were detected in all single infections and all low risk isolates were present in multiple infections. HPV-16 was identified in 31.8% (7/22) by real-time PCR and in 45.5% (10/23) of positive samples by PCR-array hybridization assay. HPV-16 was observed to be the most frequently detected type (10/22, 45.5%), followed by types 53 and 81 (5/22, 22.7%); 68 (4/22, 18.2%); type 58 (3/22; 13.6%); types 31, 42 and 59 (2/22; 9.1%) and others (1/22, 4.5%). As a result our data have indicated the abundance of high risk HPV isolates and infections with multiple HPV types in that specific area.
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