Apoptotic changes in cervical intraepithelial neoplasia.
1Department of Obstetrics and Gynecology, Albert Einstein College of Medicine, Bronx, NY, USA. chandra@isical.ac.in
Gynecologic and Obstetric Investigation
|September 11, 2001
Summary
Apoptosis, or programmed cell death, is increased in cervical intraepithelial neoplasia (CIN) tissues. This suggests that problems with cell shedding and apoptosis resistance may drive CIN development.
Area of Science:
- Gynecology
- Oncology
- Cell Biology
Background:
- Cervical intraepithelial neoplasia (CIN) involves abnormal cellular changes in the cervix.
- The role of apoptosis in CIN pathogenesis is not fully understood.
Purpose of the Study:
- To investigate the involvement of apoptosis in the cellular changes observed in CIN.
- To determine the relationship between the apoptotic index, CIN severity, age, and HPV infection.
Main Methods:
- Analysis of paraffin-embedded archival cervical tissues from CIN cases.
- Detection of apoptotic bodies using the Tunel method.
- Calculation of the apoptotic index.
Main Results:
- Apoptotic bodies were found in CIN tissues, particularly within the stratified epithelium, and were absent in normal tissues.
- The apoptotic index was significantly correlated with CIN severity.
- No significant association was found between the apoptotic index and patient age or HPV infection.
Conclusions:
- Increased apoptosis and its presence within the stratified epithelium are characteristic of CIN.
- Dysregulation in apoptotic cell exfoliation and resistance to apoptosis are hypothesized to be critical factors in CIN development.
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