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KMID : 0829220120360030171
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Korean Journal of Oral and Maxillofacial Pathology
2012 Volume.36 No. 3 p.171 ~ p.177
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Expression of hBD-2 and Infiltration of T Lymphocytes in Chronic Hyperplastic Candidiasis
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Yoon Dae-Woong
Cho Yeong-Ah
Kim Soo-Jin
Yoon Hye-Jung
Hong Seong-Doo
Lee Jae-Il
Hong Sam-Pyo
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Abstract
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Chronic hyperplastic candidiasis (CHC) is characterized by epithelial hyperplasia of the oral mucosa associated with candidal hyphae. The immune status of host is one of the factors that induce clinically evident candidal infection. Host defense mechanisms include inflammatory cells, epithelial barrier, and antimicrobial peptides such as human beta 2 defensin (hBD-2). In the present study, we investigated the densities of CD4+/CD8+ T lymphocytes and hBD-2 expression of epithelial cells in CHC. Immunohistochemical staining was performed on 10 cases of CHC using CD4, CD8 and hBD-2. Ten specimens of chronic mucositis were selected for comparison, and went through the same examination. hBD-2 was expressed in the spinous cell layers and the keratin layers of 7 CHC patients, while the epithelium of chronic mucositis did not demonstrate the hBD-2 expression except for one case. Also, hBD-2 expression was stronger when the hyphae invaded the upper stratum spinosum (P =.019). However, the densities of CD8+ T lymphocytes were significantly lower in the CHC patients, suggesting that the ability of CD8+ T cells to enter the epithelium and target the pathogenic hyphae was decreased in CHC. Increased hBD-2 expression seemed to be significantly associated with the candidal infection, while not promoting the cell-mediated immune reaction in CHC.
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KEYWORD
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Chronic Hyperplastic Candidiasis, Human beta 2 Defensin, T Lymphocyte
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