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Tumour Biol. 2014 Apr;35(4):3203-9. doi: 10.1007/s13277-013-1419-2. Epub 2013 Dec 6.

Detection and genotype analysis of human papillomavirus in non-small cell lung cancer patients.

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Laboratory of Clinical Virology, Medical School, University of Crete, Heraklion, 71003, Crete, Greece.


Although the role of human papillomavirus (HPV) in the development of uterine cervical cancer is well established, the role of HPV in lung carcinogenesis remains controversial. The detection rates of HPV DNA are subject to a wide variation from 0 to 100%. This is partly influenced by the detection techniques employed. To elucidate the impact of HPV infection on lung parenchyma, we analyzed 100 non-small cell lung cancer (NSCLC) specimens (39 squamous cell carcinomas, 50 adenocarcinomas, 5 samples with characteristics of both squamous cell and adenocarcinoma, 5 undifferentiated and 1 large cell carcinoma) from the region of Crete, Greece. Sixteen non-cancerous samples served as the negative controls. DNA was extracted from 100 paraffin-embedded tissue sections obtained from NSCLC patients. The specimens were examined for the detection of HPV DNA by Real-Time PCR using GP5+/GP6+ primers. Furthermore, the HPV-positive samples were subjected to genotyping. In contrast to the absence of viral genomes in the control samples, HPV DNA was detected in 19 NSCLC specimens (19%). In particular, 4 squamous cell carcinomas, 12 adenocarcinomas, 1 sample with characteristics of both squamous cell and adenocarcinoma, and 2 undifferentiated samples were HPV-positive. The distribution of HPV genotypes was as follows: HPV 16: eight cases (42.1%); HPV 11: three cases (15.8%); HPV 6: one case (5.2%); HPV 59: one case (5.2%); HPV 33: two cases (10.5%); HPV 31: two cases (10.5%) and HPV 18: two cases (10.5%). The presence of HPV in the tumor samples provides evidence of the potential role of HPV in NSCLC and strongly argues for additional research on this issue.

[Indexed for MEDLINE]

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