Genital transmission of HPV in a mouse model is potentiated by nonoxynol-9 and inhibited by carrageenan

被引:375
作者
Roberts, Jeffrey N.
Buck, Christopher B.
Thompson, Cynthia D.
Kines, Rhonda
Bernardo, Marcelino
Choyke, Peter L.
Lowy, Douglas R.
Schiller, John T. [1 ]
机构
[1] NCI, Cellular Oncol Lab, NIH, Bethesda, MD 20892 USA
[2] SAIC Frederick, Frederick, MD 21702 USA
[3] NCI, Mol Imaging Program, Ctr Canc Res, NIH, Bethesda, MD 20892 USA
关键词
D O I
10.1038/nm1598
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Genital human papillomavirus (HPV) infection is the most common sexually transmitted infection, and virtually all cases of cervical cancer are attributable to infection by a subset of HPVs (reviewed in ref. 1). Despite the high incidence of HPV infection and the recent development of a prophylactic vaccine that confers protection against some HPV types, many features of HPV infection are poorly understood. It remains worthwhile to consider other interventions against genital HPVs, particularly those that target infections not prevented by the current vaccine. However, productive papillomavirus infection is species- and tissue-restricted, and traditional models use animal papillomaviruses that infect the skin or oral mucosa. Here we report the development of a mouse model of cervicovaginal infection with HPV16 that recapitulates the establishment phase of papillomavirus infection. Transduction of a reporter gene by an HPV16 pseudovirus was characterized by histology and quantified by whole-organ, multispectral imaging. Disruption of the integrity of the stratified or columnar genital epithelium was required for infection, which occurred after deposition of the virus on the basement membrane underlying basal keratinocytes. A widely used vaginal spermicide, nonoxynol-9 (N-9), greatly increased susceptibility to infection. In contrast, carrageenan, a polysaccharide present in some vaginal lubricants, prevented infection even in the presence of N-9, suggesting that carrageenan might serve as an effective topical HPV microbicide.
引用
收藏
页码:857 / 861
页数:5
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