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An Official Publication of the Indian Association of Oral and Maxillofacial Pathologists


 
ORIGINAL ARTICLE Table of Contents   
Year : 2022  |  Volume : 26  |  Issue : 3  |  Page : 316-321
To analyse the mitotic and keratinisation correlation with bcl-2 expression in varying grades of oral epithelial dysplasia and squamous cell carcinoma


1 Consultant Oral Pathologist, Paradise Diagnostics, Delhi, India
2 HOD, Department of Oral Pathology, ITS CDSR, Muradnagar, Uttar Pradesh, India
3 HOD, Department of Oral Pathology, Rajas Dental College and Hospital, Kavalkinaru, Tamil Nadu, India
4 Director, Paradise Diagnostics, Delhi, India

Correspondence Address:
Aparna Pathak
Consultant, Paradise Diagnostics
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jomfp.jomfp_326_21

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Context: The bcl-2 proto-oncogene was discovered at the chromosomal breakpoint of t (14;18) found in follicular lymphoma. Histological changes in dysplasia are considered the earliest signs preceding the progression into squamous cell carcinoma. Serving as critical regulators of apoptotic pathways, bcl-2 prohibits programmed cell death and subsequently assists in uncontrolled neoplastic growth. Settings and Design: This study included 48 cases, eight each of epithelial dysplasia and squamous cell carcinoma. Immunohistochemical staining using bcl-2 antibody was performed and different histological parameters were correlated with bcl-2 positive cells in all the cases. Materials and Methods: All 3 μm thick sections were stained with bcl-2 antibody. After identifying four representative fields at 40x, their images were obtained for assessment of bcl-2 labelled cells and their intensity along with different histological parameters in all the cases. Statistical Analysis: The differences between different histological parameters were analysed using the Anova test, post hoc test and Bonferroni test. Pearson's Chi-square test was carried out to determine the level of correlation between the bcl-2 positive cells in both epithelial dysplasia and oral squamous cell carcinoma cases. Conclusion: Sequential increase in the bcl-2 expression was observed in increasing grades of epithelial dysplasia, whereas bcl-2 expression was significantly decreased in ascending stages of squamous cell carcinoma thus, suggesting a possible role of bcl-2 in disease progression from premalignancy to malignancy.


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Journal of Oral and Maxillofacial Pathology | Published by Wolters Kluwer - Medknow
Online since 15th Aug, 2007