Effects of intranasal budesonide on the expression of c-fos and c-myc in nasal polyps / 临床耳鼻咽喉头颈外科杂志

ABSTRACT

OBJECTIVE@#To investigate the effect of intranasal glucocorticoids treatment on the expression of c-fos and c-myc nasal polyps.@*METHOD@#Immunohistochemistry method was used to determine c-fos and c-myc expression in nasal polyps from patients with topical steroids treatment for 10-12 weeks and untreated patients.@*RESULT@#The rate of c-fos expressing cases was 15% and the rate of c-myc expressing cases was 20% in nasal polyps from topical steroid treated patients, but in untreated patients, the rate of c-fos expressing cases was 80% and the rate of c-myc expressing cases was 85%. There were significant differences between two groups (P < 0.01). The c-fos and c-myc expression was remarkably downregulated in nasal polyps from topical steroid treated patients compared to untreated patients.@*CONCLUSION@#The results show that glucocorticoids may induce cell apoptosis in nasal polyps by depressing the c-fos and c-myc expression.