项目名称: 糖皮质激素受体对慢性鼻-鼻窦炎激素治疗抵抗的影响及超抗原参与作用的信号途径研究
项目编号: No.30801279
项目类型: 青年科学基金项目
立项/批准年度: 2009
项目学科: 轻工业、手工业
项目作者: 王明明
作者单位: 山东省立医院
项目金额: 18万元
中文摘要: 阐明激素抵抗的病理机制和分子基础,对于指导临床上合理应用激素、制定有效的治疗方案及解决激素抵抗的实验研究,具有重要的临床价值和理论意义。本研究通过对Ⅰ#12289;Ⅱ#22411;慢性鼻-鼻窦炎(CRS)患者药物+手术规律治疗后1.5~2.0年的随访,对激素治疗敏感和抵抗(Ⅲ#22411;CRS)患者进行鼻组织超抗原检测,依据检测结果分组,进行体内不同病理状态下糖皮质激素受体(GR)α#946;、GR表达影响因子(NF-κ#65292;TNF-α65292;IFNs)、激素效应相关因子(IL-2,IL-4)的检测分析。同时,进行鼻粘膜上皮细胞的体外培养,分别在超抗原、GR表达影响因子和糖皮质激素刺激及GRβ37325;组腺病毒载体转染上皮细胞等培养条件下,进行相关因子的检测。通过体内、体外研究,提示金葡菌超抗原与CRSwNP激素抵抗的形成有关,在CRS发生、发展及复发中可能是通过NF-kB、IFNα31561;因子的表达上调或抑制,诱发GRβ30340;异常表达,使得机体产生获得性激素治疗抵抗。
中文关键词: 受体;糖皮质激素;超抗原;鼻窦炎;激素抵抗
英文摘要: To elucidate the pathomechanism and molecular basis of hormonal resistance, that is important to reasonable hormonal application,formulate effective therapeutic and empirical study on hormonal resistance. This study detected the superantigens in nasal tissue of patients with chronic rhinosinusitis, who accepted regularly combination therapy of glucocoticoid drug and surgery and followed up to 1.5-2.0 years, divided into hormonal sensitivity and resistance groups. Based on the detected results, the subjects were grouped and analyzed the factors of GRα#946;, NF-κ TNF-αIFNs, IL-2 and IL-4.We also carried out the cell culture of nasal epithelium mucosae in vitro, and detected those correlation factors in cultivate condition of superantigens, NF-κ TNF-αIFNs, glucocorticoid and transfected by GRβecombinant lentivirus vector. The results of researches in vivo and vitro suggest that superantigen is relevant to the emerge of hormonal resistance in patients with CRSwNP, which up-regulating the GRβxpression by NF-kB、IFNαthat could lead to the hormonal resistance, during the progress of occurrence, development and recurrence of chronic rhinosinusitis.
英文关键词: Receptor; Glucocorticoid; superantigen; rhinosinusitis; hormonal resistance