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HPV integration detection in CaSki and SiHa using detection of integrated papillomavirus sequences and restriction-site PCR

Raybould, Rachel, Fiander, Alison, Wilkinson, Gavin and Hibbitts, Samantha 2014. HPV integration detection in CaSki and SiHa using detection of integrated papillomavirus sequences and restriction-site PCR. Journal of Virological Methods 206 , pp. 51-54. 10.1016/j.jviromet.2014.05.017

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Abstract

Human Papillomavirus (HPV) infection is the primary cause of cervical neoplasia. HPV DNA is integrated into the human genome in the majority of cervical cancers. The nature of integration may differ with integration incorporating a single copy of HPV or occurring in concatenated form. Our understanding of HPV tumorigenesis is largely based on studies using characterised cell lines with defined integration sites; these cell lines provide an invaluable standard for validation of diagnostic assays. Cell lines also further understanding of integration mechanisms in clinical samples. The objective of this study was to explore integration assays and to investigate integration events in cell lines where HPV is integrated in concatenated form. Restriction site PCR and detection of integrated papillomavirus sequences were performed on DNA from SiHa and CaSki. A novel integration site on Xq27.3 and HPV genome rearrangements were detected in CaSki DNA. However, where integration was previously detected by FISH in CaSki, and reported to be integrated in concatenated form, integration was not detected by DIPS or RS-PCR. The data presented illustrate that HPV copy number can hinder integration detection; this needs consideration when interpreting results from tests applied to clinical samples.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Systems Immunity Research Institute (SIURI)
Subjects: R Medicine > R Medicine (General)
Publisher: Elsevier
ISSN: 0166-0934
Date of Acceptance: 20 May 2014
Last Modified: 20 Jun 2019 20:36
URI: http://orca.cf.ac.uk/id/eprint/78518

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