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Expression of CD1a by Langerhan's Cells in Oral Lichen Planus - A Retrospective Analysis

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Specialty General Medicine
Date 2016 Aug 10
PMID 27504405
Citations 6
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Abstract

Introduction: Langerhan's Cells (LCs) are dendritic cells of the oral epithelium which play a role in a series of oral lesions from gingivitis to oral cancer. Oral Lichen Planus (OLP) is an oral mucosal T-lymphocyte mediated immunologic reaction to an unidentified putative antigen or allergen.

Aim: The aim of this study was to quantify the presence of immature LCs in OLP comparing them with normal epithelium.

Materials And Methods: A retrospective study using 30 of OLP cases were conducted. Immunohistochemistry was performed using polyclonal anti-CD1a antibodies to identify LCs in 10 cases of normal tissue and 30 samples of OLP. The distribution of LCs among lesional tissue and normal mucosa was analysed using Mann-Whitney U test.

Results: LC population in OLP was significantly higher when compared to the normal epithelium (p<0.001).

Conclusion: The increase in LCs indicates the active role played during the antigen detection in OLP and subsequent presentation to T-lymphocytes.

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