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变应性鼻炎患者鼻黏膜SEB和TIM4的表达及其相关性研究 被引量:2

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摘要 目的观察葡萄球菌肠毒素B(SEB)和T细胞免疫球蛋白粘蛋白4(TIM4)在变应性鼻炎患者鼻黏膜中的表达,并探讨其相关性。方法收集24例过敏性鼻炎(AR)患者和22例非AR患者手术切除的鼻黏膜标本。从手术切除的鼻黏膜中分离单核细胞并进行流式分析。采用ELISA、qRT-PCR和Western blot检测AR患者鼻黏膜中SEB和TIM4水平。结果在AR患者的鼻黏膜中检测到了大量的B细胞,同时表达高水平的TIM4和共刺激分子。在AR鼻黏膜检测到高水平的SEB。加SEB培养时,SEB能介导鼻黏膜B细胞TIM4的表达。SEB水平和TIM4+B细胞频率呈正相关(r=0.596,P<0.05)。结论 AR鼻黏膜中SEB和TIM4表达升高;接触SEB能介导幼稚B细胞表达TIM4和共刺激分子。TIM4+CD19+B细胞可能成为治疗AR的潜在靶点。
出处 《广东医学》 CAS 北大核心 2015年第5期717-721,共5页 Guangdong Medical Journal
基金 广东省医学科研基金立项项目(编号:A2013610) 广东省深圳市卫生计生系统科研立项项目(编号:201401097) 广东省深圳市龙岗区科技计划医疗卫生项目(编号:YS2013059)
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