Expression of amphiregulin in enchondromas and central chondrosarcomas
Clinics
; Clinics;76: e2914, 2021. tab, graf
Article
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| ID: biblio-1350607
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ABSTRACT
OBJECTIVES:
The aim of this study was to evaluate the role of amphiregulin protein, an epidermal growth factor receptor ligand, in cartilaginous tumors.METHODS:
Amphiregulin expression was examined in 31 enchondromas and 67 chondrosarcomas using immunohistochemistry analysis.RESULTS:
Overall, 15 enchondromas (48.40%) and 24 chondrosarcomas (35.82%) were positive for amphiregulin. According to the receiver operating characteristic curve test, no difference in amphiregulin expression was observed between enchondromas and low-grade chondrosarcomas (p=0.0880). Additionally, 39 lesions (16 in short bones, 13 in long bones, and 10 in flat bones) were positive for amphiregulin, exhibiting a higher percentage of positive cells (p=0.0030) and intensity of immunohistochemical expression (p=0.0055) in short bone lesions than in others. Among 25 enchondromas localized in short bones, 15 expressed amphiregulin; however, all 6 cases localized in long bones were negative for this marker (p=0.0177).CONCLUSIONS:
Amphiregulin did not help in distinguishing enchondromas from low-grade chondrosarcomas. The present study is the first to document the expression of this immunohistochemical marker in enchondromas. Furthermore, amphiregulin expression in enchondromas was localized in short bones, indicating a phenotypic distinction from that in long bones. This distinction may contribute to an improved understanding of the pathogenesis of these lesions.Palabras clave
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Índice:
LILACS
Asunto principal:
Neoplasias Óseas
/
Condroma
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Condrosarcoma
/
Anfirregulina
Límite:
Humans
Idioma:
En
Revista:
Clinics
Asunto de la revista:
MEDICINA
Año:
2021
Tipo del documento:
Article