Validation of ThermoFisher's Papspin for human papillomavirus detection in cervicovaginal specimens using PCR with GP5+/GP6+ primers and the Hybrid Capture II assay.
The present study aimed to validate ThermoFisher's (Thermo Fisher Scientific, Runcorn, Cheshire, UK) Papspin (PS) for human papillomavirus (HPV) testing by in-house PCR and by the Hybrid Capture II (HC2) assay and to compare the results with those obtained using Specimen Transport Medium (STM) (Digene Diagnostics, Gaithersburg, MD, USA). Forty-five patients underwent conization for known lesions ranging from atypical squamous cells of undetermined significance (ASC-US) with high-risk HPV (hr-HPV) to high-grade squamous intraepithelial lesion (H-SIL/CIN2+) or adenocarcinoma. Two negative controls were included: one patient with post-menopausal bleeding and another from whom an inflammatory cervical sample was taken without conization. Prior to conization, a gynaecologist collected two cervical samples, fixed in PS or STM, from each patient. All but four cases were tested for panHPV (GP5+/GP6+) and specific hr-HPV subtypes (HPV16, 18, 31,33) by PCR using both media and all were processed for HC2. This study demonstrates that both HPV detection techniques work with PS, showing a specificity of 78.3% for HC2 and 92.8% for PCR compared to 83.8% for HC2 and 92% for PCR using STM. The efficacy of detecting HPV in PS-preserved H-SIL/CIN2+ was very high (96% for PCR using PS and 86% for HC2 using PS), which was in the same range as for PCR using STM, and which was only slightly lower than for HC2 using STM (96% and 89%, respectively). The differences were not statistically significant. It is concluded that ThermoFisher's PS is a valid liquid-based cytology medium for cervical samples, convenient for HPV testing by PCR with GP5+/GP6+ primers and by the HC2 assay.
Weynand
B
B
Department of Pathology, Cliniques universitaires St Luc, UCL, Brussels. birgit.weynand@uclouvain.be
Delvenne
P
P
Polet
R
R
Guiot
Y
Y
Arafa
M
M
Somja
J
J
Galant
C
C
D000328:Adult; D000368:Aged; D002584:Cervix Uteri / Q000821:virology*; D017931:DNA Primers / Q000235:genetics; D005260:Female; D006801:Humans; D008875:Middle Aged; D009693:Nucleic Acid Hybridization / Q000379:methods; D027383:Papillomaviridae / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification*; D030361:Papillomavirus Infections / Q000175:diagnosis* / Q000821:virology; D016133:Polymerase Chain Reaction / Q000379:methods*; D012680:Sensitivity and Specificity; D013048:Specimen Handling / Q000379:methods; D014773:Virology / Q000379:methods*
D017931:DNA Primers