1. Self-sampling coupled to the detection of HPV 16 and 18 E6 protein: A promising option for detection of cervical malignancies in remote areas.
- Author
-
Torres KL, Mariño JM, Pires Rocha DA, de Mello MB, de Melo Farah HH, Reis RDS, Alves VDCR, Gomes E, Martins TR, Soares AC, de Oliveira CM, and Levi JE
- Subjects
- Adolescent, Adult, Brazil epidemiology, Colposcopy, DNA, Viral analysis, Early Detection of Cancer methods, Female, Humans, Middle Aged, Papillomavirus Infections diagnosis, Papillomavirus Infections epidemiology, Rural Population, Specimen Handling, Uterine Cervical Neoplasms diagnosis, Uterine Cervical Neoplasms epidemiology, Vaginal Smears methods, Young Adult, DNA-Binding Proteins analysis, Human papillomavirus 16 isolation & purification, Human papillomavirus 18 isolation & purification, Oncogene Proteins, Viral analysis, Papillomavirus Infections virology, Repressor Proteins analysis, Uterine Cervical Neoplasms virology
- Abstract
Objective: To evaluate both the performance and acceptability of a method coupling self-sampling with detection of cervical malignancy via elevated HPV 16 and 18 E6 oncoproteins (OncoE6™ Cervical Test) in remote areas in Brazil., Methods: Women living in rural villages in proximity to Coari city, Amazonas, Brazil were invited to participate in a cervical cancer screening study. 412 subjects were enrolled; there were no refusals. In addition to E6 protein detection, DNA was extracted from the brushes and evaluated for HPV genotypes by PCR (PGMY09/11), followed by typing by the Papillocheck™ if positive. Subjects who were found to be positive for OncoE6 or HPV-DNA were referred for colposcopy., Results: For 110 subjects (27%) this was the first cervical cancer exam. Overall the HPV-DNA prevalence was 19.1% (n = 79); 1.4% (n = 6) were positive by the OncoE6 Test. Fifty-six women attended the invitation for colposcopy where nine had an abnormal cervix and were subsequently biopsied. Histopathological analysis revealed 2 CIN3, 2 carcinomas and 5 CIN1. OncoE6 called two out of the three HPV 16 or 18 associated CIN3+ lesions., Conclusions: The findings suggest that self-administered sample collection in combination with OncoE6 Test is feasible in this population. This could enable expanded screening coverage while ensuring a high specificity which is imperative given the remote geographic location, since women bearing abnormal test results would necessitate travel and logistical burden to access colposcopy and treatment., Competing Interests: JE Levi has received travel support from Arbor Vita Corporation, research support in the form of equipment and reagents from BD and speakers fee from Roche Diagnostics in the last 5 years. Other authors do not have any potential conflict of interest to disclose.
- Published
- 2018
- Full Text
- View/download PDF