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American Journal of Pathology, Vol 137, 659-666, Copyright © 1990 by American Society for Investigative Pathology

REGULAR ARTICLES

Detection of human papillomavirus and Epstein-Barr virus DNA sequences in oral mucosa of HIV-infected patients by the polymerase chain reaction

PJ Snijders, EA Schulten, H Mullink, RW ten Kate, M Jiwa, I van der Waal, CJ Meijer and JM Walboomers
Department of Pathology, Free University Hospital, Amsterdam, The Netherlands.

The presence of human papillomavirus (HPV) and Epstein-Barr virus (EBV) was analyzed in 21 oral biopsy specimens of HIV-infected patients using the polymerase chain reaction (PCR) method. Biopsies were categorized as hairy leukoplakia (HL) (n = 12), candidiasis (n = 3), oral warts (n = 2), and clinically normal epithelium (n = 4). For HPV detection a modified general primer-mediated PCR method (GP-PCR), which detects a broad spectrum of HPV genotypes at sub-picogram levels, was used. Human papillomavirus DNA was only found in two oral warts and was identified as HPV type 32. Epstein-Barr virus DNA was detected in 16 biopsy specimens, including the 12 HLs, 2 cases of candidiasis, and 2 samples of normal epithelium. Epstein-Barr virus positivity in HL could be confirmed by Southern blot analysis and DNA in situ hybridization using biotinylated DNA probes (bio-DISH). Epstein-Barr virus bio-DISH was also positive in one sample of normal epithelium from a patient with HL. The results indicate that HL is strongly associated with EBV and not with any of the common HPV types that react with general HPV primers in the PCR. However the detection of EBV in normal oral epithelium by PCR and bio-DISH suggests that the presence of this virus is not exclusively related to HL.




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Copyright © 1990 by the American Society for Investigative Pathology.