비용을 동반한 만성 비부비동염에서 황색포도상구균 외독소의 역할
Role of Staphylococcus Aureus Exotoxins in Chronic Rhinosinusitis with Nasal Polyp
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Background and ObjectivesZZStaphylococcal exotoxins (SEs) have been implicated in the pathogenesis of chronic rhinosinusitis with nasal polyp (CRSwNP). In the current study, we determined the prevalence of specific immunoglobulin E (IgE) antibodies to SEs in serum and polyp tissues of patients with CRSwNP and tried to find out whether there is an association between the presence of SEs-IgE antibody and eosinophilic inflammation. Subjects and MethodZZBlood, nasal polyp and mucosa samples were obtained from 43 patients undergoing endoscopic sinus surgery for CRSwNP and 11 controls undergoing septoplasty without CRS. Specimens were analyzed for the presence of specific IgE antibody to four SEs [staphylococcal enterotoxin A (SEA), staphylococcal enterotoxin B (SEB), staphylococcal enterotoxin C (SEC), toxic shock syndrome toxin 1 (TSST-1)] using ImmunoCAP assay. Eosinophil cationic protein (ECP) in serum and nasal polyp tissue were also analyzed using ImmunoCAP. Eosinophil counts were estimated in polyp tissue. ResultsZZSEs-specific IgE antibodies were detected in 13 (30.2%) patients of the CRSwNP group. In contrast, only one (9.1%) control patient had IgE to SEs. Serum ECP level was increased significantly in the CRSwNP group compared with controls. However, there were no significant differences in Lund-MacKay score, the ECP level in the serum and polyp tissue, and eosinophil count in the polyp tissue between the SEs-IgE antibody positive [SEs-IgE Ab (+)]group and the SEs-IgE antibody negative [SEs-IgE Ab (-)] group. ConclusionZZSEs may play a certain role in the pathogenesis of CRSwNP. However, there is no close correlation between the presence of SEs-IgE antibody and eosinophilic inflammation. Korean J Otorhinolaryngol-Head Neck Surg 2010;53:221-7
Abstract
Background and ObjectivesZZStaphylococcal exotoxins (SEs) have been implicated in the pathogenesis of chronic rhinosinusitis with nasal polyp (CRSwNP). In the current study, we determined the prevalence of specific immunoglobulin E (IgE) antibodies to SEs in serum and polyp tissues of patients with CRSwNP and tried to find out whether there is an association between the presence of SEs-IgE antibody and eosinophilic inflammation. Subjects and MethodZZBlood, nasal polyp and mucosa samples were obtained from 43 patients undergoing endoscopic sinus surgery for CRSwNP and 11 controls undergoing septoplasty without CRS. Specimens were analyzed for the presence of specific IgE antibody to four SEs [staphylococcal enterotoxin A (SEA), staphylococcal enterotoxin B (SEB), staphylococcal enterotoxin C (SEC), toxic shock syndrome toxin 1 (TSST-1)] using ImmunoCAP assay. Eosinophil cationic protein (ECP) in serum and nasal polyp tissue were also analyzed using ImmunoCAP. Eosinophil counts were estimated in polyp tissue. ResultsZZSEs-specific IgE antibodies were detected in 13 (30.2%) patients of the CRSwNP group. In contrast, only one (9.1%) control patient had IgE to SEs. Serum ECP level was increased significantly in the CRSwNP group compared with controls. However, there were no significant differences in Lund-MacKay score, the ECP level in the serum and polyp tissue, and eosinophil count in the polyp tissue between the SEs-IgE antibody positive [SEs-IgE Ab (+)]group and the SEs-IgE antibody negative [SEs-IgE Ab (-)] group. ConclusionZZSEs may play a certain role in the pathogenesis of CRSwNP. However, there is no close correlation between the presence of SEs-IgE antibody and eosinophilic inflammation. Korean J Otorhinolaryngol-Head Neck Surg 2010;53:221-7
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