鼻息肉中总IgE与嗜酸粒细胞浸润的相关性研究

目的:探讨总IgE及嗜酸粒细胞(EOS)在鼻息肉中的表达及其相关关系,以分析其在鼻息肉发病中的作用。方法:采用免疫组织化学SP法检测38例鼻息肉、15例中鼻甲黏膜组织中总IgE阳性细胞表达;采用Chromotrope2R染色法检测EOS浸润情况。结果:①鼻息肉组织中总IgE及EOS水平均明显高于中鼻甲黏膜组织,均P<0.01;②鼻息肉组织中总IgE与EOS呈明显正相关关系(r=0.843,P<0.01)。结论:EOS浸润在鼻息肉的形成和发展中起重要作用,IgE介导的Ⅰ型变态反应对鼻息肉中EOS浸润发挥一定作用。

Study on the association among total immunoglobulin E and eosinophil in nasal polyp

OBJECTIVE: To explore the expression of total immunoglobulin E(IgE) and eosinophil in nasal polyp and their roles in the pathogenesis of nasal polyp. METHOD: Thirty eight patients with nasal polyp and 15 control cases were chosen. All samples were stained with Chromotrope 2R histochemical and SP immunohistochemical method separately to examine eosinophil and total IgE+ cells in nasal polyp. RESULT: (1) The level of total IgE and eosinophil in nasal polyp was all significantly higher than that in normal control specimens (P < 0.01). (2) The positive correlation of total IgE and eosinophil was significant (r = 0.843, P < 0.01). CONCLUSION: Nasal polyp is a disease characterized by eosinphils infiltration. Type I allergic reaction mediated by IgE assemble and activate eosinophils which may play an important role in the infiltration pathogenesis of nasal polyp.