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Alterations in the immunoexpression of galectins‐1, ‐3 and ‐7 between different grades of oral epithelial dysplasia
Author(s) -
Vasconcelos Carvalho Marianne,
Pereira Joabe dos Santos,
Alves Pollianna Muniz,
Silveira Ericka Janine Dantas da,
Souza Lélia Batista,
Queiroz Lélia Maria Guedes
Publication year - 2013
Publication title -
journal of oral pathology and medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 83
eISSN - 1600-0714
pISSN - 0904-2512
DOI - 10.1111/j.1600-0714.2012.01199.x
Subject(s) - galectin , epithelial dysplasia , pathology , immunohistochemistry , staining , galectin 3 , medicine , immunology
Oral epithelial dysplasia ( OED ) is a potentially malignant lesion characterized by a combination of cytological and architectural anomalies, which are essential for its diagnosis. Galectins are proteins that participate in cell cycle, adhesion and differentiation, apoptosis, and immune responses, as well as in cancer development and progression. Materials and methods The aim of this study was to analyze the immunohistochemical expression of galectins‐1, ‐3, and ‐7 in the OED (21 low risk and 29 high risk) and normal oral mucosa ( NOM ). The binary grading system was used. Results Galectin‐1 was expressed in the middle/lower third in most OED cases. Nuclear/cytoplasmic staining was observed in most low‐risk and high‐risk OED s. All cases of NOM were negative for galectin‐1. Galectin‐3 was expressed in the middle/lower third in most low‐risk cases. Nuclear/cytoplasmic staining was noted in most low‐risk and high‐risk OED s. Middle/lower third and in membrane staining was detected in four cases of NOM for galectin‐3. Galectin‐7 was expressed in the upper/middle third in most of OED cases. Nuclear/cytoplasmic staining predominated in low‐risk and high‐risk OED s. Galectin‐7 was detected in four cases of NOM , all of them presenting staining in the upper/middle third and in the membrane. Conclusion The differences in the immunoexpression of galactin‐1, ‐3, and ‐7 between different grades of OED s suggest the involvement of this protein in the progression of dysplasias.