title: Predictors of seropositivity to human papillomavirus type 53: one of the most prevalent high risk-related cervical human papillomaviruses.
abstract: Persistent cervicovaginal infection with high-risk types of HPV is the major risk factor for subsequent cervical neoplasia. HPV53, part of the alpha 6 species group along with HPV types 30, 56, and 66, is one of the most prevalent high risk-related HPV types, yet little is known about the molecular basis of its benign behavior. We generated and utilized HPV53 virus-like particles (VLPs) to investigate risk factors for its seroprevalence in a population of young college women. Seropositivity to HPV53 VLPs was determined using a polymer-based ELISA to measure IgG reactive antibodies. Cervicovaginal cells were collected for HPV DNA detection and typing by MY09/11 PCR. A questionnaire queried for HPV risk factors to estimate odds ratios (ORs). Prevalence of cervicovaginal HPV DNA was 26% (n = 148); 3% of women (n = 17) had HPV53 DNA and 7% (n = 40) were seropositive to HPV53. Seroprevalence of IgG to HPV53 VLPs in women with cervicovaginal HPV53, HPV53-related types (HPV30, 55, and 66), other HPV types, and no HPV was 41%, 11%, 7%, and 6%, respectively (p(trend) < 0.001). Risk factors independently associated with HPV53 VLP seropositivity included use of oral contraceptive pills (OCPs) (OR: 4; 95% CI: 1.8, 9), having >or=2 regular partners in the last 6 months (OR: 2.5; 95 % CI: 1.1, 5.8), having a regular male partner with >or=4 lifetime sex partners (OR: 2.6; 95% CI: 1.1 6), seropositivity to HPV16 (OR: 6.7; 95% CI: 3.1, 14.5), and isolation of HPV53 DNA from cervicovaginal lavage (OR: 17.3; 95% CI: 5.3, 55.9). In conclusion, host serological responses to HPV53 VLPs are strongly type-specific, and subjects' risk for HPV53 seropositivity is independently associated with sexual behavior and OCP use.
authors.affiliation: Department of Pediatrics, Division of Infectious Diseases, Children's Hospital at Montefiore, Bronx, New York 10467, USA. zmalik@montefiore.org
authors.forename: Zainab A
authors.initials: ZA
authors.lastname: Malik
authors.forename: Susan M
authors.initials: SM
authors.lastname: Hailpern
authors.forename: Robert D
authors.initials: RD
authors.lastname: Burk
mesh_terms: D000293:Adolescent; D000328:Adult; D052685:Alphapapillomavirus / Q000235:genetics / Q000276:immunology*; D000914:Antibodies, Viral / Q000097:blood*; D003267:Contraception; D005260:Female; D006801:Humans; D007074:Immunoglobulin G / Q000097:blood; D030361:Papillomavirus Infections / Q000453:epidemiology* / Q000276:immunology*; D016133:Polymerase Chain Reaction; D015995:Prevalence; D012307:Risk Factors; D012725:Sexual Behavior; D012747:Sexual Partners; D014481:United States / Q000453:epidemiology; D014626:Vaginal Smears
chemical_list: D000914:Antibodies, Viral; D007074:Immunoglobulin G