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

ORIGINAL ARTICLE Table of Contents   
Year : 2018  |  Volume : 22  |  Issue : 1  |  Page : 48-53
Caspase cascade pathways of apoptosis in oral pemphigus: An immunohistochemical study

1 Departments of Oral Pathology and Microbiology, A. J. Institute of Dental Sciences, Mangalore, Karnataka, India
2 Department of Oral Pathology and Microbiology, Indira Gandhi Institute of Dental Sciences, Puducherry, India
3 Department of Dermatology (DVL), A. J. Institute of Dental Sciences, Mangalore, Karnataka, India
4 Department of Dentistry, DM WIMS, Wayanad, Kerala, India

Correspondence Address:
Aparna K Sanath
Department of Oral and Maxillofacial Pathology, A. J. Institute of Dental Sciences, Kuntikana, Mangalore - 575 004, Karnataka
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jomfp.JOMFP_79_17

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Background: Pemphigus is a group of autoimmune blistering diseases characterized by loss of keratinocyte cell adhesion that leads to blister formation clinically. Induction of apoptosis or of proapoptotic proteins by pemphigus immunoglobulin G (IgG) may be part of the mechanism by which IgG induces acantholysis. Some of the current data suggest that activation of proapoptotic proteins such as bax and caspase cysteine proteinases may sensitize cells to the acantholytic effects of pemphigus IgG. Thus, a central role of apoptosis in the mechanisms of blister induction is well recognized. Aims: This study aims (a) To find which pathway of apoptosis is involved in the pathogenesis of pemphigus and (b) to evaluate the expression of bax and caspase-8 and its key role in pemphigus. Materials and Methods: The study was conducted on 21 samples of oral pemphigus. The presence of apoptosis was evaluated in the sections taken from histopathologically diagnosed oral pemphigus archival blocks using peroxidase-antiperoxidase immunohistochemical method. Results: The expression and staining intensity of pro-apoptotic marker bax and apoptotic marker caspase-8 were observed in the various areas with varying intensity in different samples. The result was subjected to statistical analysis. Conclusion: The results obtained in the present study suggest that the process of apoptosis occurs in PV. Hence, inhibition of apoptosis in the patients could reduce the severity of the lesions, and they could also represent new specific targets for pemphigus treatment.

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