MMPs抑制剂GM6001、MMP-2/9抑制剂Ⅰ及Ⅱ对人晶状体上皮细胞移行的抑制作用  

Suppressing effects of MMPs inhibitor GM6001, MMP-2/9 inhibitor Ⅰ ,MMP-2/9 inhibitor Ⅱ on migration of human lens epithelial cells

作　　者：刘冬梅[1] 李俊红[1] 

机构地区：[1]山西医科大学山西省眼科医院斜视与小儿眼科,太原030002

出　　处：《中华实验眼科杂志》2015年第9期811-815,共5页Chinese Journal Of Experimental Ophthalmology

摘　　要：背景 白内障术后残留晶状体上皮细胞（LECs）的增生、移行、上皮-间质转化等生物学行为与晶状体后囊膜混浊（PCO）的发生有关,基质金属蛋白酶（MMPs）参与细胞的移行过程.广谱MMPs抑制剂GM6001能抑制人LECs的移行,但特异性MMPs抑制剂,即MMP-2/9抑制剂Ⅰ和Ⅱ对LECs移行能力的影响及药物的安全性尚不明确. 目的 比较GM6001、MMP-2/9抑制剂Ⅰ和MMP-2/9抑制剂Ⅱ对LECs移行的抑制作用及其对细胞活性的影响.方法 对人LECs系进行培养和传代,取传至3～4代的细胞培养于6孔板中,当细胞生长融合至70％后改用无血清培养液作用12h,在培养液中分别加入不同浓度（0.25、0.50、1.00、2.00、4.00、8.00、16.00、32.00、64.00、128.00μmol/L）GM6001、MMP-2/9抑制剂Ⅰ和MMP-2/9抑制剂Ⅱ,以基础培养液培养的细胞作为对照组,用200μl无菌枪头在细胞层中划出细胞裸露区,继续培养后24 h计算各组细胞移行的平均距离,计算各种药物对LECs移行的抑制率.在细胞活性的测定中,取传至第2代或第3代LECs,调整细胞密度至5＆#215;105/ml,以200 μl/孔接种至96孔板常规培养,分别加入128.00 μmol/LGM6001、64.00μmol/L MMP-2/9抑制剂Ⅰ和32.00 μmol/L MMP-2/9抑制剂Ⅱ,以基础培养液培养的细胞作为对照组,培养24 h后用MTT法测定吸光度（A）值,分析并比较3种药物对LECs活性的影响,评估药物对细胞的毒性作用.结果 正常培养的LECs生长良好,贴壁生长的细胞呈梭形或多边形,排列不规则.随着GM6001、MMP-2/9抑制剂Ⅰ和MMP-2/9抑制剂Ⅱ浓度的增加,LECs移行距离逐渐缩短,总体比较差异有统计学意义（GM6001：F=248.647,P＜0.05;MMP-2/9抑制剂Ⅰ：F=357.125,P＜0.05;MMP-2/9抑制剂Ⅱ：F=396.374,P＜0.05）.将对照组细胞移行距离设为1,3种药物浓度为32.00 μmol/L时,GM6001组、MMP-2/9抑制剂Ⅰ组和MMP-2/9抑制剂Ⅱ组细胞的相对移行距离分别为0.478±0.091、0.294±0.088和0.191±0.081,�Background The primary pathologic mechanism of posterior capsular opacification （PCO） is proliferation,migration and epithelial-mesenchymal transformation of residuary lens epithelial cells （LECs） following cataract surgery.Matrix metalloproteinases （MMPs） play a role during the migration of LECs.Researches showed that GM6001,a broad inhibitor of MMPs,can arrest the migration of LECs,but as specific inhibitors of MMPs,the efficacy and safety of MMP-2/9 inhibitor Ⅰ and Ⅱ on LECs migration remain unclear.Objective This study was to determine and compare the inhibitory efficacy among GM6001,MMP-2/9 inhibitor Ⅰ and Ⅱ on human LECs and search the clinical medication to prevent PCO.Methods Human LECs were cultured and passaged in vitro,and the cells of 3-4 generation were incubated in 6-well plates.Then the cells of 70% confluent monolayer were cultured in DMEM without fetal bovine serum for 12 hours.GM6001,MMP-2/9 inhibitor Ⅰ and Ⅱ at different concentrations （0.25,0.50,1.00,2.00,4.00,8.00,16.00,32.00,64.00,128.00 μmol/L） were added into the culture medium for 24 hours separately,and regularly cultured cells served as the control group.A bare area was made by a 200 μl sterile spear on the cell layer,and the migrated distance and inhibitory rate were calculated.The second or third generation of cells were incubated in 96-well plates at a density of 5＆#215;105/ml （200 μl/well）.GM6001 （128.00 μmol/L）,MMP-2/9 inhibitor Ⅰ （64.00 μmol/L） and Ⅱ （32.00 μmol/L） were added into the culture medium for 24 hours,and the cell viability was assayed by using MTT assay.Results Cultured cells grew well with irregular arrangement and presented the polygon in shape.The migrated distance was gradually reduced as the increase of concentrations of GM6001,MMP-2/9 inhibitor Ⅰ and Ⅱ,showing significant differences among the various concentration groups （GM6001：F=248.647,P〈0.05;MMP-2/9 inhibitor Ⅰ：F=357.125,P〈0.05;MP2/9 inhibitor Ⅱ：F=396.374,P〈 0.05）.The cell migrat

关 键 词：基质金属蛋白酶/抑制剂 上皮细胞/眼 晶状体/眼 细胞移行/药物作用 后囊膜混浊 

分 类 号：R779.6[医药卫生—眼科]