白介素-17在变应性鼻炎及鼻息肉患者血液和组织中的表达

目的 研究白介素-17(IL-17)在变应性鼻炎、鼻息肉患者血液和组织中的表达情况,探讨其在变应性鼻炎、鼻息肉发生发展中的可能作用机制.方法 收集变应性鼻炎、鼻息肉患者以及对照组共41例患者的血液以及鼻甲黏膜或息肉组织,采用ELISA法、免疫组化染色法检测血液中、组织内IL-17表达情况,HE染色法观察嗜酸性粒细胞浸润情况.结果 鼻息肉患者血清中IL-17的含量及局部组织内IL-17阳性细胞计数,与对照组相比,差异均有统计学意义 (P均<0.05),其局部组织内IL-17表达情况与局部浸润的嗜酸性粒细胞数呈正相关(r=0.736, P=0.006);变应性鼻炎患者仅局部组织内IL-17阳性细胞计数高于对照组(P＜0.001),血清中IL-17的含量低于鼻息肉患者(P＜0.001),与对照组间的差异没有统计学意义(P=0.541).变应性鼻炎患者组嗜酸性粒细胞计数与鼻息肉患者组间差异无统计学意义(P=0.893),但两者均高于正常对照组(P均＜0.001).结论 IL-17对鼻息肉的发生发展具有重要的作用;而对于变应性鼻炎,IL-17可能是其发病的一个重要方面,需进一步的研究.

The Expression of Interleukin-17 in Blood and Nasal Tissue of Patients with Allergic Rhinitis and Nasal Polyps

Objective To study the expression of IL-17 in blood and nasal tissue of allergic rhinitis and nasal polyps, and to investigate the possible mechanism of IL-17 in the progress of allergic rhinitis and nasal polyps. Methods There were 41 patients enrolled, including the patients with allergic rhinitis, nasal polyps and deviated nasal septum. The blood and nasal mucosa tissue or nasal polyps were collected in all the patients. The expression of IL-17 was measured by the methods of ELISA and immunohistochemisty, and the number of eosinophils and IL-17 positive cells was measured. Results The IL-17 expression of nasal polyps was significantly elevated in the blood and nasal tissue, which was obviously correlated with the number of eosinophils infiltrated in nasal tissue. However, for the patients with allergic rhinitis, there was only apparent expression of IL-17 in nasal mucosa. Conclusion IL-17 plays an important role in the development of nasal polyps, but for allergic rhinitis, it needs further study as an potential important aspect of the pathogenesis.