【摘 要】
：
目的 探讨不同浓度的可溶性CD44分子(soluble CD44,sCD44)对原发性开角型青光眼(primary open-angle glaucoma,POAG)患者小梁网细胞凋亡的影响,以及研究sCD44与POAG发病的关
【机 构】
：
解放军第180医院眼科,福建医科大学附属第二医院眼科
【基金项目】
：
泉州市优秀人才培养专项经费资助项目;
论文部分内容阅读
目的 探讨不同浓度的可溶性CD44分子(soluble CD44,sCD44)对原发性开角型青光眼(primary open-angle glaucoma,POAG)患者小梁网细胞凋亡的影响,以及研究sCD44与POAG发病的关系.方法 采用组织块培养法原代培养POAG患者小梁网细胞,取传3代的小梁网细胞分别加入含sCD44终浓度为0ng/ml(对照组),l ng/ml,5 ng/ml,10 ng/ml,25 ng/ml,50 ng/ml的无血清培养基,分别培养24h后收集细胞,采用CCK-8法、荧光显微镜和流式细胞仪法,研究sCD44对POAG患者小梁网细胞凋亡的影响.结果 通过CCK-8法检测发现:随着sCD44终浓度的增加,sCD44对POAG患者小梁网细胞的抑制作用增强,且各实验组与对照组及各实验组之间相比差异有统计学意义(P＜0.05)；通过荧光显微镜观察显示随着sCD44终浓度的增加,早期和晚期凋亡细胞明显增多；通过流式细胞仪法检测sCI44终浓度为l ng/ml,5 ng/ml,10 ng/ml,25 ng/ml,50 ng/ml实验组小梁网细胞凋亡率分别为10.73±0.02,17.33±0.03,21.15±0.02,25.13±0.03,30.00±0.03,均高于对照组小梁网细胞凋亡率2.56±0.02,且各实验组与对照组及各实验组之间相比差异有统计学意义(P＜0.05).结论 sCD44在一定浓度范围内可以抑制POAG患者小梁网细胞的增殖,促进细胞的凋亡,并且呈现一定的剂量依赖性,sCD44可能通过作用于小梁网细胞间接参与POAG的发病过程.
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