Related Experiment Video
Updated: Aug 27, 2025

Study of the DNA Damage Checkpoint using Xenopus Egg Extracts
Published on: November 5, 2012
Chromatin Dispersion Test to Asses DNA Damage in Cervical Epithelial Cells
Elva I Cortés-Gutiérrez1, José L Fernández2,3, Martha I Dávila-Rodríguez4
1Universidad Autónoma de Nuevo León, México Faculty of Biological Sciences, Monterrey, Mexico. elvairenecortes@yahoo.com.mx.
Abstract:
The chromatin dispersion test (CDT) is based on the removal of nuclear proteins under the assumption that cells with fragmented DNA produce a typical halo of circular DNA loops, which is absent in cells with non-fragmented DNA. This method represents a simple, rapid, accurate, highly reproducible, and inexpensive technique to assess nuclear DNA damage in somatic cells. The visualization of DNA damage and the capacity of the test to provide a threshold value to discriminate between high and low levels of cervical lesions would aid in determining the malignant transformation. All of these advantages associated with the CDT protocol could promote this technique as a tool for the quick and reliable diagnosis of cervical epithelial disorders, even at primary-care centers.

