BACKGROUND: Genetic polymorphism in human papillomavirus (HPV)-33 and -35 was investigated in 1055 sexually active women (732 human immunodeficiency virus [HIV] seropositive and 323 HIV seronegative). METHODS: Consecutive genital specimens obtained at 6-month intervals were screened for HPV-33 and -35 by use of MY09-MY11. HPV-33 and -35 isolates from 95 women were analyzed by polymerase chain reaction sequencing of the long control region (LCR), E6, and E7. RESULTS: For HPV-33, 101 (20%) of 506 nucleotides in the LCR were variable, compared with 10 (2.1%) of 483 nucleotides in E6 (P<.001) and 6 (1.9%) of 324 nucleotides in E7 (P<.001). For HPV-35, the proportion of variable nucleotide sites was similar between the LCR and both E6 (P=.54) and E7 (P=.33). The presence of a 78-base pair deletion in HPV-33 (relative risk [RR], 1.8 [95% confidence interval [CI], 1.2-2.7]) and the presence of nonsynonymous E7 variations in HPV-35 (RR, 2.6 [95% CI, 1.4-4.6]) were associated with persistence. When the data for HPV-33 and -35 were combined, infection by HPV isolates with nonsynonymous E7 variations (RR, 2.3 [95% CI, 1.6-3.4]; P=.001) and ethnicity (P=.04) were associated with persistence, whereas age (P = .14) and HIV infection/CD4 cell count status (P=.12) were not significantly associated with persistence, by logistic regression analysis. CONCLUSION: HPV-33 and -35 polymorphism was different between types and was associated with persistence of HPV infection.
BACKGROUND: Genetic polymorphism in human papillomavirus (HPV)-33 and -35 was investigated in 1055 sexually active women (732 human immunodeficiency virus [HIV] seropositive and 323 HIV seronegative). METHODS: Consecutive genital specimens obtained at 6-month intervals were screened for HPV-33 and -35 by use of MY09-MY11. HPV-33 and -35 isolates from 95 women were analyzed by polymerase chain reaction sequencing of the long control region (LCR), E6, and E7. RESULTS: For HPV-33, 101 (20%) of 506 nucleotides in the LCR were variable, compared with 10 (2.1%) of 483 nucleotides in E6 (P<.001) and 6 (1.9%) of 324 nucleotides in E7 (P<.001). For HPV-35, the proportion of variable nucleotide sites was similar between the LCR and both E6 (P=.54) and E7 (P=.33). The presence of a 78-base pair deletion in HPV-33 (relative risk [RR], 1.8 [95% confidence interval [CI], 1.2-2.7]) and the presence of nonsynonymous E7 variations in HPV-35 (RR, 2.6 [95% CI, 1.4-4.6]) were associated with persistence. When the data for HPV-33 and -35 were combined, infection by HPV isolates with nonsynonymous E7 variations (RR, 2.3 [95% CI, 1.6-3.4]; P=.001) and ethnicity (P=.04) were associated with persistence, whereas age (P = .14) and HIV infection/CD4 cell count status (P=.12) were not significantly associated with persistence, by logistic regression analysis. CONCLUSION:HPV-33 and -35 polymorphism was different between types and was associated with persistence of HPV infection.
Authors: Mark Schiffman; Ana Cecilia Rodriguez; Zigui Chen; Sholom Wacholder; Rolando Herrero; Allan Hildesheim; Rob Desalle; Brian Befano; Kai Yu; Mahboobeh Safaeian; Mark E Sherman; Jorge Morales; Diego Guillen; Mario Alfaro; Martha Hutchinson; Diane Solomon; Philip E Castle; Robert D Burk Journal: Cancer Res Date: 2010-03-30 Impact factor: 12.701
Authors: Anne F Rositch; Jill Koshiol; Michael G Hudgens; Hilda Razzaghi; Danielle M Backes; Jeanne M Pimenta; Eduardo L Franco; Charles Poole; Jennifer S Smith Journal: Int J Cancer Date: 2012-10-11 Impact factor: 7.396
Authors: Long Fu Xi; Mark Schiffman; Laura A Koutsky; James P Hughes; Ayaka Hulbert; Zhenping Shen; Denise A Galloway; Nancy B Kiviat Journal: Int J Cancer Date: 2016-05-14 Impact factor: 7.396
Authors: Alyce A Chen; Daniëlle A M Heideman; Debby Boon; Zigui Chen; Robert D Burk; Hugo De Vuyst; Tarik Gheit; Peter J F Snijders; Massimo Tommasino; Silvia Franceschi; Gary M Clifford Journal: Virology Date: 2013-11-12 Impact factor: 3.616
Authors: Zigui Chen; Mark Schiffman; Rolando Herrero; Rob Desalle; Kathryn Anastos; Michel Segondy; Vikrant V Sahasrabuddhe; Patti E Gravitt; Ann W Hsing; Robert D Burk Journal: PLoS One Date: 2011-05-27 Impact factor: 3.240