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Telomerase activity as a potential diagnostic marker for triage of abnormal Pap smears.

Abstract：

OBJECTIVES:To determine whether there is an association between high levels of telomerase and premalignant cervical disease and to provide a preliminary analysis of telomerase activity as a potential triage strategy. MATERIALS AND METHODS:Premenopausal women were invited to participate in the study during routine gynecologic visits as well as visits where colposcopy was performed. Samples were taken from the cervix using a broom device and placed in cold phosphate-buffered saline. A total of 92 samples were evaluated. Cells were counted and lysed, and a semiquantitative measure of telomerase activity was determined using a commercially available telomerase enzyme-linked immunosorbent assay kit. The presence of human papillomavirus (HPV) types 16 and 18 was assessed by polymerase chain reaction analysis. One-way analysis of variance was used to test for the association of telomerase activity with cytology, HPV type 16 or 18 status, and colposcopy and/or biopsy findings. RESULTS:When telomerase levels were analyzed according to Pap smear results, there were no differences among four groups of cytology findings (normal, atypical squamous cells of undetermined significance, low-grade squamous intraepithelial lesion, and high-grade squamous intraepithelial lesion). When colposcopy and/or biopsy results were considered, significantly higher levels of telomerase were detected in cervical intraepithelial neoplasia (CIN) 2,3 samples than in normal Pap smear samples and CIN 1 samples (p = .035). There was no significant difference in telomerase levels between samples that tested positive for HPV type 16 or 18 and those that did not (p = .111). CONCLUSIONS:Telomerase levels were significantly higher in cytologic samples from women with biopsy-proven CIN 2,3 than in samples from women with normal cytology results or CIN 1. These results warrant larger studies to determine whether telomerase activity may be a useful triage tool for abnormal cytologic findings.

journal_name

J Low Genit Tract Dis

journal_title

Journal of lower genital tract disease

authors

Ault KA,Allen HK,Phillips SL,Zimmerman MB,Klingelhutz AJ

doi

10.1097/00128360-200504000-00005

subject

Has Abstract

pub_date

2005-04-01 00:00:00

pages

93-9

issue

eissn

1089-2591

issn

1526-0976

pii

00128360-200504000-00005

journal_volume

pub_type

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Telomerase activity as a potential diagnostic marker for triage of abnormal Pap smears.