Abstract
Objectives: To investigate the prognostic significance of DNA ploidy and silver-stained nucleolar organizer regions (AgNOR), their relation to the cytological grades of cervical dysplasia and correlation of cells in the S-phase of the cell cycle and DNA ploidy with AgNOR count. Methods: Multiparametric DNA flow-cytometric analysis and AgNOR count were performed on cervical smear samples, cytologically diagnosed as normal (n = 196), atypical squamous cells of unknown significance (ASCUS, n = 98) and various grades of cervical dysplasia (n = 127). Results: Among the cytological grade, aneuploid cases from low-grade squamous intraepithelial lesion (mild) and high-grade squamous intraepithelial lesion (moderate and severe) groups were showing high AgNOR counts (ranges 4.33-5.86 and 5.91-7.42, respectively). Aneuploid cases from the ASCUS group also presented high AgNOR (range 3.72-4.93). The high percentage of cells in the S-phase (>12%) correlated with these 2 parameters in the ASCUS and dysplasia groups. After grouping the cases into those with high (>4.0) and low (<4.0) AgNOR counts, significant correlations in the group with high AgNOR count with DNA ploidy, S-phase and cytological grade were recorded (p < 0.001). Results obtained from follow-up study revealed that cases with aneuploidy, high AgNOR count and S-phase fraction presented with a progressive trend of disease. Conclusions: Thus, the study shows that high AgNOR count, S-phase fraction and aneuploid DNA have prognostic significance in the early detection of cervical cancer.
Original language | English (US) |
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Pages (from-to) | 411-416 |
Number of pages | 6 |
Journal | Oncology |
Volume | 71 |
Issue number | 5-6 |
DOIs | |
State | Published - Oct 2007 |
Keywords
- Cell cycle
- Cervical dysplasia
- DNA ploidy
- Flow cytometry
- Nucleolar organizer region
- S-phase
- Silver-stained nucleolar organizer regions
ASJC Scopus subject areas
- Oncology
- Cancer Research