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α-硫辛酸对AGEs作用下血管内皮细胞PD-L1表达的影响
被引:9
作者
:
论文数:
引用数:
h-index:
机构:
杜宣
[
1
]
论文数:
引用数:
h-index:
机构:
施毕旻
[
1
]
陈永井
论文数:
0
引用数:
0
h-index:
0
机构:
苏州大学医学生物技术研究所
苏州大学附属第一医院内分泌病科
陈永井
[
2
]
论文数:
引用数:
h-index:
机构:
张学光
[
2
]
机构
:
[1]
苏州大学附属第一医院内分泌病科
[2]
苏州大学医学生物技术研究所
来源
:
江苏医药
|
2011年
/ 37卷
/ 03期
关键词
:
α-硫辛酸;
糖基化终产物;
程序性死亡配体1;
D O I
:
10.19460/j.cnki.0253-3685.2011.03.001
中图分类号
:
R587.2 [糖尿病性昏迷及其他并发症];
学科分类号
:
100201
[内科学]
;
摘要
:
目的探讨α-硫辛酸(LA)对糖基化终产物(AGEs)作用下的人脐静脉血管内皮细胞株(HUVEC)表面程序性死亡配体1(PD-L1)分子表达及培养上清液中可溶性PD-L1(sPD-L1)浓度的影响。方法实验分四组:正常对照组(C组:RPMI1640培养);糖基化牛血清白蛋白(AGE-BSA)组[培养液分别为AGE-BSA50mg/ml(AG50组)、200mg/ml(AG200组)和400mg/ml(AG400组)];牛血清白蛋白(BSA)对照组[培养液分别为BSA50mg/ml(BG50组)、200mg/ml(BG200组)和400mg/ml(BG400组)];药物干预组[培养液分别为RPMI1640+200μmol/LLA(C+LA200组)、200mg/mlAGE-BSA+200μmol/LLA(AG200+LA200组)]。孵育72h后,检测各组HUVEC细胞表面PD-L1的表达及上清液中sPD-L1浓度的变化。结果不同浓度AGE-BSA作用细胞72h,PD-L1的表达及sPD-L1浓度较对照组显著升高(P<0.01),其效应呈现一定的浓度依赖性。在LA干预下,AG200+LA200组PD-L1表达及sPD-L1浓度显著低于AG200组(P<0.05)。结论 AGEs能有效上调内皮细胞表面PD-L1表达,并增加培养上清液中sPD-L1浓度;而LA则可抑制AGEs的诱导作用。
引用
收藏
页码:249 / 251
页数:3
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←
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→