Histologic and immunologic associations of an HPV16 variant in LoSIL smears.

Abstract:

BACKGROUND:Human papillomavirus type 16 variants have been described and may have different biologic activities: this has implications for the design of HPV vaccines. OBJECTIVES:The aim of this study was to see if the HPV16 variant E-G 131 can be detected in women with preinvasive disease and to consider the histological and immunological implications of such infection. DESIGN:A prospective observational cross-sectional study on a cohort of women with minor cervical cytological abnormalities was performed. METHODS:Samples were tested for HPV DNA by polymerase chain reaction and restriction enzyme digestion. Blood samples were tested for antibodies to HPV16 virus-like particles (VLP) and to determine class I HLA types. Women found to have abnormal colposcopy were treated by large-loop excision of the transformation zone on a see-and-treat basis. RESULTS:Two hundred forty-one women were included in the study. Infection with the variant was detected in 20. 9% of cases and was not associated with any specific HLA type. These cases were more likely to have high-grade CIN than those with wild-type HPV16 or no HPV16 (chi2 = 18.85, P < 0.001). There were significant differences in seropositivity to HPV16 virus-like particles between the three groups (chi2 = 32.43, P < 0.001). CONCLUSIONS:The E-G 131 variant may have increased oncogenic potential by evading host immune responses, but its identification is only weakly predictive of high-grade disease in stepwise logistic regression. The lack of seropositivity to HPV16 VLP has implications for the design of prophylactic vaccines based on VLP to HPV16.

journal_name

Gynecol Oncol

journal_title

Gynecologic oncology

authors

Etherington IJ,Ellis JR,Luesley DM,Moffitt DD,Young LS

doi

10.1006/gyno.1998.5231

subject

Has Abstract

pub_date

1999-01-01 00:00:00

pages

56-9

issue

1

eissn

0090-8258

issn

1095-6859

pii

S0090-8258(98)95231-3

journal_volume

72

pub_type

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