高原缺氧对血脑屏障中ATP-结合盒转运蛋白表达的影响  

Effects of high altitude hypoxia on theexpression of ATP-bindingg cassette transporter in blood-brain barrier

作　　者：张明霞 张强[1] 李文斌 胥艳梅 王荣[1] ZHANG Ming-xia;ZHANG Qiang;LI Wen-bin;XU Yan-mei;WANG Rong(Pharmacy Department,940 Hospital of The Joint Service Support Force of The People's Liberation Army,Lanzhou 730050,Gansu Province,China;Field Service Training Center,940 Hospital of The Joint Service Support Force of The People's Liberation Army,Lanzhou 730050,Gansu Province,China)

机构地区：[1]中国人民解放军联勤保障部队第940医院药剂科,甘肃兰州730050 [2]中国人民解放军联勤保障部队第940医院卫勤训练中心,甘肃兰州730050

出　　处：《中国临床药理学杂志》2024年第10期1488-1491,共4页The Chinese Journal of Clinical Pharmacology

摘　　要：目的研究高原缺氧对血脑屏障(BBB)中ATP-结合盒(ABC)转运蛋白表达的影响,并探讨影响其表达的机制。方法将Wistar大鼠分为1500 m组(兰州实地)、4010 m组(模拟,低压氧舱,缺氧3 d)、6000 m组(模拟,低压氧舱,缺氧3 d)、苯妥英钠+1500 m组(在1500 m组基础上给予50 mg·kg^(-1)苯妥英钠)、苯妥英钠+4010 m组(在4010 m组基础上给予50 mg·kg^(-1)苯妥英钠)、苯妥英钠+6000 m组(在6000 m组基础上给予50 mg·kg^(-1)苯妥英钠)和缺氧1 d组、缺氧2 d组、缺氧3 d组、缺氧4 d组(模拟海拔4010 m,低氧氧舱,分别缺氧1、2、3和4 d)。用蛋白质印迹法检测BBB组织蛋白的表达水平,用高效液相色谱联用质谱法检测脑脊液苯妥英钠的浓度。结果1500 m、4010 m、6000 m组的P-糖蛋白(P-gp)蛋白相对表达水平分别为1.00±0.04、1.84±0.02和2.10±0.05,多药耐药相关蛋白-4(MRP4)蛋白相对表达水平分别为1.00±0.05、2.77±0.08和4.42±0.03,苯妥英钠在脑脊液中的浓度为(864.78±348.32)、(1000.22±273.90)和(1214.17±314.09)ng·mL^(-1)。1500 m组、4010 m组上述指标和6000 m组相比较,在统计学上差异均有统计学意义(均P<0.05)。缺氧1 d组、缺氧2 d组、缺氧3 d组、缺氧4 d组P-gp蛋白相对表达水平分别为1.00±0.03、1.85±0.04、3.10±0.02和2.17±0.05,MRP4蛋白相对表达水平分别为1.00±0.05、1.79±0.10、1.60±0.08和1.31±0.06,缺氧1 d组、缺氧2 d组、缺氧3 d组上述指标和缺氧4 d组比较,在统计学上差异均有统计学意义(均P<0.05)。结论不同的高原缺氧环境对BBB中ABC族转运蛋白的表达产生不同的影响,并影响其底物药物在体内的药物浓度。Objective This study aimed to investigate the effects of high-altitude hypoxia on the expression of ATP-binding cassette(ABC)transport proteins in the blood-brain barrier(BBB)and explore the mechanisms influencing their expression.Methods Wistar rats were divided into 1500 m group(Lanzhou field),4010 m group(simulated 4010 m,low-pressure oxygen chamber,hypoxia for 3 days),6000 m group(simulated 6000 m,low-pressure oxygen chamber,hypoxia for 3 days),phenyloin sodium+1500 m group(given 50 mg·kg^(-1)phenytoin sodium on the basis of the 1500 m group),phenytoin sodium+4010 m group(given 50 mg·kg^(-1)phenytoin sodium on the basis of the 4010 m group),phenytoin sodium+6000 m group(given 50 mg·kg^(-1)phenytoin sodium on the basis of the 6000 m group),and hypoxia 1 d group,hypoxia 2 d group,hypoxia 3 d group,hypoxia 4 d group(simulated altitude of 4010 m,low-oxygen chamber,hypoxia for 1,2,3,4 days).Western blot was used to detect the expression of BBB tissue proteins;and liquid chromatography-tandem mass spectrometry was used to measure the concentration of phenytoin sodium in cerebrospinal fluid.Results The relative expression levels of P-glycoprotein(P-gp)in the 1500 m,4010 m,6000 m groups were 1.00±0.04,1.84±0.02,2.10±0.05,respectively;the relative expression levels of multidrug resistance-associated protein-4(MRP4)were 1.00±0.05,2.77±0.08,4.42±0.03,respectively;the concentrations of phenytoin sodium in cerebrospinal fluid were(864.78±348.32),(1000.22±273.90),and(1214.17±314.09)ng·mL^(-1),respectively.The differences in the above indicators between the 1500 m,4010 m,and 6000 m groups were statistically significant(all P<0.05).The relative expression levels of P-gp in the hypoxia 1 d,2 d,3 d,4 d groups were 1.00±0.03,1.85±0.04,3.10±0.02,2.17±0.05,respectively;the relative expression levels of MRP4 were 1.00±0.05,1.79±0.10,1.60±0.08,1.31±0.06,respectively;the differences in the above indicators between the hypoxia 1 d,2 d,3 d,4 d groups were statistically significant(all P<0.05).Conclusion Different

关 键 词：苯妥英钠 高原缺氧 血脑屏障 P-糖蛋白 多药耐药相关蛋白-4 乳腺癌耐药蛋白 脑脊液 

分 类 号：R97[医药卫生—药品]