中华实验眼科杂志
中華實驗眼科雜誌
중화실험안과잡지
CHINESE JOURNAL OF EXPERIMENTAL OPHTHALMOLOGY
2011年
9期
831-833
,共3页
张海燕%李英琦%张苏炯%夏媛玲%于燕妮
張海燕%李英琦%張囌炯%夏媛玲%于燕妮
장해연%리영기%장소형%하원령%우연니
多聚赖氨酸%乙二胺四乙酸%晶状体上皮细胞%后发性白内障
多聚賴氨痠%乙二胺四乙痠%晶狀體上皮細胞%後髮性白內障
다취뢰안산%을이알사을산%정상체상피세포%후발성백내장
Poly-L-Lysine%Ethylene diamine tetraacetic acid%Lens epithelial cell%After cataract
背景 后囊膜混浊(PCO)是现代白内障囊外摘出术后引起视力下降的主要原因。研究证实多聚赖氨酸-乙二胺四乙酸( EDTA)交联物(PLE)能够降低兔PCO的发生率。 目的 研究PLE对体外培养的兔晶状体上皮细胞(LECs)生长的抑制作用及有效药物浓度。 方法 取3月龄新西兰白兔晶状体前囊膜进行体外植块培养获得兔LECs并进行传代,取第2~3代传代培养的LECs消化后按1×105个/ml密度接种于96孔培养板中。在培养皿中加入12.5、25.0、50.0、100.0 μmol/L的PLE,培养皿中加入DMSO培养液作为对照组。PLE作用48 h用MTT比色法测定PLE对兔LECs增生的抑制作用并计算各浓度PLE组的吸光度(A490)值及其抑制率。结果 ≤25.0 μmol/L PLE组可见细胞生长及形态改变不明显。≥50.0μmol/L PLE各组可见细胞生长及形态有明显改变,增生缓慢,生长差,数量减少,贴壁能力减弱。12.5、25.0、50.0、100.0 μmol/L的PLE组LECs的A490值分别为0.278±0.013、0.266±0.028、0.260±0.022和0.247±0.012,均明显低于DMSO对照组的0.311±0.038(P=0.035、0.011、0.009、0.013),且呈明显的剂量-效应依赖关系。12.5、25.0、50.0、100.0 μmol/L PLE组对兔LECs的抑制率分别为10.61%、14.47%、16.40%和20.58%。结论PLE可以浓度依赖的方式抑制兔LECs的生长,可为临床筛选出防治PCO的药物提供依据。
揹景 後囊膜混濁(PCO)是現代白內障囊外摘齣術後引起視力下降的主要原因。研究證實多聚賴氨痠-乙二胺四乙痠( EDTA)交聯物(PLE)能夠降低兔PCO的髮生率。 目的 研究PLE對體外培養的兔晶狀體上皮細胞(LECs)生長的抑製作用及有效藥物濃度。 方法 取3月齡新西蘭白兔晶狀體前囊膜進行體外植塊培養穫得兔LECs併進行傳代,取第2~3代傳代培養的LECs消化後按1×105箇/ml密度接種于96孔培養闆中。在培養皿中加入12.5、25.0、50.0、100.0 μmol/L的PLE,培養皿中加入DMSO培養液作為對照組。PLE作用48 h用MTT比色法測定PLE對兔LECs增生的抑製作用併計算各濃度PLE組的吸光度(A490)值及其抑製率。結果 ≤25.0 μmol/L PLE組可見細胞生長及形態改變不明顯。≥50.0μmol/L PLE各組可見細胞生長及形態有明顯改變,增生緩慢,生長差,數量減少,貼壁能力減弱。12.5、25.0、50.0、100.0 μmol/L的PLE組LECs的A490值分彆為0.278±0.013、0.266±0.028、0.260±0.022和0.247±0.012,均明顯低于DMSO對照組的0.311±0.038(P=0.035、0.011、0.009、0.013),且呈明顯的劑量-效應依賴關繫。12.5、25.0、50.0、100.0 μmol/L PLE組對兔LECs的抑製率分彆為10.61%、14.47%、16.40%和20.58%。結論PLE可以濃度依賴的方式抑製兔LECs的生長,可為臨床篩選齣防治PCO的藥物提供依據。
배경 후낭막혼탁(PCO)시현대백내장낭외적출술후인기시력하강적주요원인。연구증실다취뢰안산-을이알사을산( EDTA)교련물(PLE)능구강저토PCO적발생솔。 목적 연구PLE대체외배양적토정상체상피세포(LECs)생장적억제작용급유효약물농도。 방법 취3월령신서란백토정상체전낭막진행체외식괴배양획득토LECs병진행전대,취제2~3대전대배양적LECs소화후안1×105개/ml밀도접충우96공배양판중。재배양명중가입12.5、25.0、50.0、100.0 μmol/L적PLE,배양명중가입DMSO배양액작위대조조。PLE작용48 h용MTT비색법측정PLE대토LECs증생적억제작용병계산각농도PLE조적흡광도(A490)치급기억제솔。결과 ≤25.0 μmol/L PLE조가견세포생장급형태개변불명현。≥50.0μmol/L PLE각조가견세포생장급형태유명현개변,증생완만,생장차,수량감소,첩벽능력감약。12.5、25.0、50.0、100.0 μmol/L적PLE조LECs적A490치분별위0.278±0.013、0.266±0.028、0.260±0.022화0.247±0.012,균명현저우DMSO대조조적0.311±0.038(P=0.035、0.011、0.009、0.013),차정명현적제량-효응의뢰관계。12.5、25.0、50.0、100.0 μmol/L PLE조대토LECs적억제솔분별위10.61%、14.47%、16.40%화20.58%。결론PLE가이농도의뢰적방식억제토LECs적생장,가위림상사선출방치PCO적약물제공의거。
Background Posterior capsule opacification(PCO) is the main cause inducing low vision after extacapsular cataract extraction. Our previous study determined that polylysine-ethylene diamine tetraacetic acid (EDTA) (PLE) can suppress the incidence of PCO. Objective The goal of this experiment was to investigate the inhibition of polylysine-EDTA on rabbit lens epithelial cells (LECs) proliferation in vitro and the effective concentrations of polylysine-EDTA. Methods The anterior capsular membranes from 10 3-month-old clean New Zealand white rabbits were digested and then cultured to obtain the LECs. The second and third generation of LECs were inoculated on the 96-hole culture plate with the cell density of the 1 × 105/ml. 12.5,25.0,50. 0,100. 0 μmol/Lof PLE were added into the culture medium for 48 hours respectively,and the DMSO medium was used at the same way as the control group. The proliferation of the LECs was then detected by MTT method and the inhibitory rate of PLE on LECs growth was calculated. Results LECs grew at a near normal state in ≤25.0 μmol/L PLE groups,however,cultured LECs were out of shape and the numbers decreased with the weakened adhesion ability in ≥50.0 μ mol/L PLE groups. The A490 values of LECs were 0. 278±0. 013,0. 266±0. 028,0. 260±0. 022 and 0. 247±0. 012 in 12. 5,25.0,50. 0, 100. 0 μmol/L polylysine-EDTA groups respectively and were lower than 0. 311 ±0. 038 of DMSO control group( P=0. 035,0. 011,0. 009,0.013 ). The inhibitory rates of 12. 5,25.0,50. 0, 100.0 μmoL/L PLE on LECs proliferation were 10.61% , 14.47% , 16.40% and 20. 58% respectively. Conclusions Polylysine-EDTA can inhibit the growth and proliferation of LECs in vitro at a dose-dependent manner.