膝骨性关节炎患者滑膜水通道蛋白-1表达与血管生成的相关性研究Studies on correlation between angiogenesis and the synovial aquaporins- 1 expression in patients with knee osteo-arthritis
袁普卫;何辉;康武林;刘德玉;马建兵;
摘要(Abstract):
[目的]观察膝骨性关节炎(knee osteoarthritis,KOA)患者滑膜中水通道蛋白1(aquaporins-1,AQP-1)表达和血管生成的情况,并对二者进行相关性分析,从而探讨AQP-1表达与血管生成在KOA滑膜炎中的意义,为进一步研究膝骨性关节炎(osteoarthritis,OA)的发病机制提供试验依据。[方法]根据Kellgren-Lawrence(K/L)分级和美国风湿病协会KOA标准,将50例患者分为早期KOA组、晚期KOA组和正常组。对获取的膝关节样本行术中肉眼观察和显微镜下组织学观察,并用Krenn滑膜炎评分评估滑膜组织学变化。采用免疫组化法检测滑膜组织中AQP-1和CD34的表达情况。显微镜下观察CD34单克隆抗体标记新生血管内皮细胞微血管计数,并进行微血管密度(MVD)的计算。采用Pearson线性相关性分析法分别对MVD与滑膜炎性评分之间,AQP-1阳性细胞表达率与滑膜炎评分之间,AQP-1阳性细胞表达率与MVD之间进行相关性分析。[结果](1)在早期KOA组和晚期KOA组膝关节滑膜中都有滑膜炎性改变,其主要变化为:滑膜衬里层增生、血管增生和炎性细胞浸润。KOA组滑膜炎性评分较正常组明显高,差异具有统计学意义(P<0.05),且早期KOA组滑膜较其他两组滑膜炎性等级更高,差异具有统计学意义(P<0.05);(2)免疫组化检测结果显示,与正常滑膜组织相比,在KOA组滑膜中AQP-1和MVD有着更高的表达,差异具有统计学意义(P<0.05),且早期KOA组高于晚期KOA组,差异具有统计学意义(P<0.05);(3)MVD值与滑膜炎性评分呈明显正相关(r=0.825,P<0.01);AQP-1阳性细胞表达率与滑膜炎性评分呈明显正相关(r=0.827,P<0.01);AQP-1阳性细胞表达率与MVD值明显正相关(r=0.894,P<0.01)。[结论](1)AQP-1的表达和新生血管生成在KOA组较正常组明显增多,早期KOA组较晚期KOA组明显增多,且AQP-1表达的上调可能与滑膜血管生成相关;(2)KOA滑膜中AQP-1表达上调和血管生成可能通过协调作用参与了人KOA滑膜炎的形成及KOA的发生、发展。
关键词(KeyWords): 骨性关节炎;滑膜炎;血管生成;水通道蛋白-1
基金项目(Foundation): 陕西省重点科技创新团队项目(编号:2013KCT-26);; 陕西省自然科学基础研究计划项目(项目批准号:2010JM4002);; 陕西省科学技术研究发展计划项目(编号:2011kjxx33);; 咸阳市科学技术研究项目[项目批准号:2010K15-02(9)];; 全国名老中医药专家李堪印传承工作室建设项目资助
作者(Author): 袁普卫;何辉;康武林;刘德玉;马建兵;
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