Open AccessImmunohistochemical expression of macrophages in chronic periapical lesions
Author(s) -
Zilda Betânia Barbosa Medeiros de Farias,
Jade de Souza Cavalcante,
Anne Caroline de Lima,
Emanuel Sávio de Souza Andrade,
Márcia Maria Fonseca da Silveira,
Ana Paula Veras Sobral
Publication year - 2021
Publication title -
research, society and development
Language(s) - English
Resource type - Journals
ISSN - 2525-3409
DOI - 10.33448/rsd-v10i7.16622
Subject(s) - cd68 , immunohistochemistry , pathology , medicine , staining , inflammation
Objective: To analyze the expression of macrophages in periapical granulomas (PGs) and radicular cysts (RCs). Methodology: We selected 264 cases of chronic periapical lesions stored at the Laboratory of Pathology, Dental School of Pernambuco (FOP)/UPE, including 89 PGs and 175 RCs. Seventy-nine cases, 23 PGs and 56 RCs, were submitted to immunohistochemical analysis by the streptavidin-biotin method using anti-CD68 antibody. The chi-square and Fisher’s exact tests were used to determine the existence of associations with categorical and clinical variables, adopting a 95% confidence level (p≤0.05). Results: We observed immunoexpression of CD68 in 83% of cases. The number of CD68+ cells (score 3 or 4) was higher in PGs, with predominantly intense staining. Significant differences in the number of CD68+ cells and staining intensity were observed between the chronic periapical lesions analyzed. Conclusion: The presence of CD68+ cells in periapical tissues may indicate the development, maintenance and/or severity of the inflammation-mediated immune response, which is more intense in PG.