Role of immunomarkers in the clinicopathological analysis of unicystic ameloblastoma

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Abstract

Purpose. The clinical behavior of unicystic ameloblastomavaries according to its subtype. Theassessment of its proliferative capacity, neovascularization, and invasiveness using relevant immunomarkers may aid in appropriate surgical therapeutic protocol. Methods. 18 cases of clinically and histologically confirmed unicystic ameloblastoma, categorized as luminal, intraluminal, ormural subtypes, were analyzed retrospectively. Immunomarkers such as Ki-67, CD34, MMP-2, and MMP-9 were studied to evaluate their behavior. Results. Labeling index of Ki-67 was 4.25% in the intraluminal subtype, compared with 2.14%in the luminal and 4.04% in themural variant (P = 0.3). CD34 immunostaining was significantly higher in the mural variant (43 per high power field) than the other two subtypes (P = 0.04). MMP-2 and MMP-9 were strongly expressed in mural, moderately in intraluminal, and weakly to absent in luminal variant. Conclusions. High proliferative index, angiogenesis, and protease activity in themural ameloblastoma, ascertained by the expression of these markers, confirm its aggressive phenotype. The intraluminal and luminal subtype exhibiting decreased expression are compatible with their indolent clinical behavior.

Original languageEnglish
Pages (from-to)481-488
Number of pages8
JournalDisease Markers
Volume35
Issue number5
DOIs
Publication statusPublished - 2013

All Science Journal Classification (ASJC) codes

  • Molecular Biology
  • Genetics
  • Clinical Biochemistry
  • Biochemistry, medical

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