Human papillomavirus types 6 and 11 DNA sequences in genital and laryngeal papillomas and in some cervical cancers.
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TL;DR
The data support a genital origin of laryngeal papillomavirus infections and a possible role of this or related papillmavirus types in the induction of malignant genital tumors remains to be elucidated.
Abstract
Human genital tumors as well as recurrent laryngeal papillomas were analyzed for the presence of human papillomavirus (HPV) 6 and HPV 11 sequences. HPV 11 DNA was found in 7 of 14 laryngeal papillomas; in the 7 other tumors no HPV DNA was demonstrated. HPV 11 DNA was also found in all five atypical condylomata of the cervix included in this study. Condylomata acuminata mainly contained HPV 6 DNA. From 63 biopsy specimens, 41 clearly harbored HPV 6 DNA and 13 harbored HPV 11 DNA. In three tumors accurate typing was impossible, and in six additional ones neither HPV 6 nor HPV 11 DNA could be demonstrated. The data support a genital origin of laryngeal papillomavirus infections. In 4 of 24 malignant tumors, HPV 11 DNA or related sequences were demonstrated; 2 of the 4 were biopsy specimens from invasive cancer, and the other 2 originated from carcinomata in situ. A possible role of this or related papillomavirus types in the induction of malignant genital tumors remains to be elucidated.