eISSN: 2084-9869
ISSN: 1233-9687
Polish Journal of Pathology
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SCImago Journal & Country Rank
2/2015
vol. 66
 
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abstract:

Original paper
A positive correlation between immunohistochemical expression of CD31 and mast cell tryptase in odontogenic tumors

Maryam Kouhsoltani
,
Monireh Halimi
,
Sana Dibazar

Pol J Pathol 2015; 66 (2): 170-175
Online publish date: 2015/07/28
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In this study, we compared mast cell tryptase and CD31 expression between odontogenic tumors with the aim of predicting the clinical behavior of these lesions at the time of initial biopsy. We also evaluated the correlation between mast cell tryptase and CD31 expression to clarify the role of mast cells (MCs) in the growth of odontogenic tumors. Immunohistochemical staining with anti-MC tryptase and anti-CD31 antibodies was performed on 48 cases of odontogenic tumors including solid ameloblastoma (SAM), unicystic ameloblastoma (UAM), odontogenic myxoma (OM), cystic calcifying odontogenic tumor (CCOT) and adenomatoid odontogenic tumor (AOT). Ten high power fields were analyzed for each sample. Total MC count was significantly increased in SAM compared to other odontogenic tumors (p < 0.05). Microvessel density was statistically higher in SAM and AOT compared to remaining odontogenic tumors (p < 0.05). A significant correlation was observed between MCs and microvessels in odontogenic tumors (p = 0.018, r = 0.34). Our findings suggest a role for MCs in aggressive clinical behavior of odontogenic tumors. The significant correlation found between MC count and microvessel density in odontogenic tumors is in agreement with the theory of participation of MCs in tumor progression. Targeting MC activity may represent an important nonsurgical therapeutic approach, especially for aggressive odontogenic tumors.
keywords:

angiogenesis, ameloblastoma, myxoma

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