DNA Recovery Using Ethanol-Based Liquid Medium from FTA Card-Stored Samples for HPV Detection.
Acta Cytol
; 65(3): 264-271, 2021.
Article
em En
| MEDLINE
| ID: mdl-33951624
ABSTRACT
INTRODUCTION:
Alternative methods of dry storage and transportation may be a viable alternative to the use of liquid storage medium for cervical samples, especially for screening programs in places with few resources.OBJECTIVE:
The objective of this study is to verify the viability and efficacy of human papillomavirus DNA (HPV-DNA) detection in cervical cell samples collected and stored on a Flinders Technology Associates (FTA) card (Whatman Indicating FTA® Elute Micro Card) and subsequently recovered in ethanol-based liquid medium and to compare the results to those obtained using samples stored directly in ethanol-based liquid medium. STUDYDESIGN:
Thirty-four women submitted to ETZ (excision of the transformation zone of the cervix) were included in this study. Before ETZ, 2 samples of exfoliated cervical cells were collected from each woman by a doctor and stored in ethanol-based liquid medium and on an FTA card. DNA recovery from FTA samples was performed using ethanol-based liquid medium. Detection of HPV-DNA in the samples was performed using the Cobas® 4800 HPV Test Platform. RESULTS ANDCONCLUSIONS:
The HPV-DNA detection positivity rates were 70.6% for the samples collected directly in liquid medium and 64.7% for the samples stored on the FTA card, with high detection accuracy in the DNA samples recovered from the FTA card (area under the curve = 0.958; 95% confidence interval = 0.890-1.000). The concordance between the results obtained using the 2 storage media was 94.1% (Kappa = 0.866). These preliminary results suggest that collection of cervical material on an FTA card may be an alternative to storage in liquid medium since the liquid medium has some limitations. In addition, DNA recovery from the card using ethanol-based liquid medium streamlines the workflow in the laboratory and reduces the cost associated with reagents, thereby facilitating access to the HPV test in places with few resources and potentially improving cervical cancer screening.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Papel
/
Papillomaviridae
/
Manejo de Espécimes
/
DNA Viral
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Displasia do Colo do Útero
/
Neoplasias do Colo do Útero
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Infecções por Papillomavirus
/
Etanol
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Testes de DNA para Papilomavírus Humano
/
Filtração
Tipo de estudo:
Diagnostic_studies
/
Prognostic_studies
Limite:
Female
/
Humans
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article