Related Experiment Video
Updated: Mar 13, 2026

Anti-Nuclear Antibody Screening Using HEp-2 Cells
Published on: June 23, 2014
Evaluating Nuclear Membrane Irregularity for the Classification of Cervical Squamous Epithelial Cells
Jing Rui Tang1, Nor Ashidi Mat Isa1, Ewe Seng Ch'ng2
1Imaging and Intelligent Systems Research Team, School of Electrical and Electronic Engineering, Universiti Sains Malaysia, Nibong Tebal, Pulau Pinang, Malaysia.
Nuclear membrane irregularity in cervical cells is a key indicator of malignancy. Novel analysis techniques effectively differentiate between normal, low-grade, and high-grade squamous intraepithelial lesions, improving cervical cancer detection.
Area of Science:
- Pathology
- Biomedical Engineering
- Computational Biology
Background:
- The Pap test screens for cervical cancer by examining cellular morphology.
- Nuclear membrane irregularity is a critical indicator of malignancy in cervical squamous epithelial cells.
Purpose of the Study:
- To introduce and evaluate two novel techniques for quantifying nuclear membrane irregularity.
- To compare the performance of these new methods against existing state-of-the-art techniques.
Main Methods:
- Proposed penalty-driven smoothing analysis with varying penalty values.
- Developed mean- or median-type residual-based analysis to measure contour deviations.
- Statistical comparison using Friedman and post hoc tests (Holm, Shaffer, Bergmann).
Main Results:
- Both novel techniques demonstrated significant differences between diagnostic classes (NILM, LSIL, HSIL).
- Penalty-driven smoothing analysis showed comparable results to existing methods.
- Residual-based analysis effectively differentiated between the three diagnostic classes.
Conclusions:
- Nuclear membrane irregularity is a significant feature for distinguishing between different diagnostic classes of cervical cells.
- The proposed techniques offer a promising approach for enhanced cervical cancer detection through improved morphological analysis.
Related Concept Videos
Classification of Epithelial Tissues: Overview
Based on the number of cell layers,...
Nuclear Protein Sorting
Proteins targeted to the nucleus carry nuclear localization signals or NLS recognized by import receptors in the cytosol. Similarly, proteins with nuclear export signals are recognized by export receptors. Import and export receptors are...
Classification of Epithelial Tissues: Stratified Epithelium
Additional Subnuclear Structures
The nucleus contains many membrane-less subnuclear organelles or nuclear bodies, such as nucleoli, Cajal bodies, speckles,...
Classification of Epithelial Tissues: Simple Epithelium
Because of the thinness of the cells, simple squamous epithelium is present where the rapid passage of chemical compounds is observed. For example, the endothelium that lines the capillaries and vessels...
Nuclear Localization Signals and Import

