CD14启动子基因C-159T功能性多态性与鼻息肉的关系:哮喘在其中的作用
2012/12/24
摘要
结论:CD14基因启动子遗传变异在NP的致病和哮喘发生中起到一定作用。
背景:鼻息肉(NP)是一种慢性炎症性疾病,常与过敏症和哮喘相关。皮质类固醇治疗和外科鼻息肉切除是NP的两种常见治疗手段。许多与过敏症和炎症相关的介质在鼻息肉的致病中起到了重要作用。CD14基因位于线粒体5q31-32,在一些过敏性疾病和特异反应性(包括哮喘)中起到了重要的作用。因此,CD14的变异可能会影响过敏症和哮喘的病因及严重程度。本试验旨在研究CD14基因C-159T多态性与鼻息肉的关系。
方法:106名鼻旁窦CT、内镜和组织学检查证实的鼻息肉患者入选本研究。检测结果与87名对照进行比较。采用聚合酶链反应-限制性片段长度多态性分析检测C-159T频率。采用盐析技术提取DNA。
结果:C-159T与鼻息肉呈现显著相关性。CD14启动子区-159 位CC基因型的患者,哮喘风险增加(OR, 3.83, 95% CI, 0.99-13.91; P <0.02)。然而,C-159T分布与血清免疫球蛋白E水平无显著相关性。
结论:CD14基因启动子遗传变异在NP的致病和哮喘发生中起到一定作用。
(刘国梁 审校)
J Investig Allergol Clin Immunol. 2012;22(6):406-11.
Association between the functional polymorphism C-159T in the CD14 promoter gene and nasal polyposis: potential role in asthma.
Yazdani N, Amoli MM, Naraghi M, Mersaghian A, Firouzi F, Sayyahpour F, Mokhtari Z.
Source
Otorhinolaryngology Research Center, Tehran University of Medical Sciences, Tehran, Iran.
Abstract
BACKGROUND: Nasal polyposis (NP) is a chronic inflammatory disease that is frequently associated with allergy and asthma. Corticosteroid therapy and surgical removal of polyps are the 2 most common treatment strategies for NP. Various allergic and inflammatory mediators are thought to play a major role in the pathophysiology of this disorder. The CD14 gene is located on chromosome 5q31-32, which is considered a critical region for several allergic and atopic diseases, including asthma. Consequently, variations in CD14 could have functional effects on the etiology and severity of allergy and asthma. The aim of this study was to investigate the association between the polymorphism C-159T in the CD14 gene of patients with NP and controls.
METHODS: The study population comprised 106 patients with NP diagnosed based on computed tomography scan of the paranasal sinus, endoscopy, and histological examination. Findings were compared with those from 87 controls. The frequency of C-159T was determined using polymerase chain reaction-restriction fragment length polymorphism analysis. DNA was extracted using the salting out technique.
RESULTS: A significant association was observed between C-159T and NP (P = .04). Patients with the CC genotype at position -159 of the CD14 promoter region had an increased risk of asthma (OR, 3.83, 95% CI, 0.99-13.91; P < .02). However, we did not find an association between the distribution of C-159T and serum immunoglobulin E level. CONCLUSIONS: A genetic variation in the CD14 promoter might play a role in the pathogenesis of NP and in the incidence of asthma.
J Investig Allergol Clin Immunol. 2012;22(6):406-11.