FK506对d-BSA超载的NRK-52E细胞增殖的影响  

Effects of FK506 on d-BSA-induced proliferation of NRK-52E cells

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作  者:李静[1] 夏正坤[2] 高远赋[2] 樊忠民[2] 蔡晓懿[1] 高春林[2] 何旭[2] 张沛[2] 

机构地区:[1]南京大学医学院临床学院儿科,江苏南京210093 [2]南京军区南京总医院儿科,江苏南京210002

出  处:《现代医学》2012年第3期259-263,共5页Modern Medical Journal

基  金:江苏省重点医学人才基金资助(RC2007115)

摘  要:目的:探讨他克莫司(tacrolimus,FK506)对去脂牛血清白蛋白(denatured bovine serum albumin,d-BSA)超载的大鼠肾小管上皮细胞(normal rat kidney proximal tubular epithelial cell line,NRK-52E)增殖的影响。方法:(1)以不同终质量浓度(1、5、10、20、50 mg·ml-1)d-BSA超载NRK-52E,以正常培养的NRK-52E细胞为对照组,观察不同浓度d-BSA对细胞增殖的影响及d-BSA(20 mg·ml-1)超载不同时间(6、12、24 h)对NRK-52E增殖的影响。(2)以不同浓度(0.1、1、10、20 ng·ml-1)FK506预处理NRK-52E 4 h后加入终质量浓度为20 mg·ml-1d-BSA共孵育24 h,观察不同浓度FK506预处理对d-BSA超载细胞增殖的影响。(3)以10 ng·ml-1的FK506预处理4 h后加入终质量浓度为20 mg·ml-1d-BSA共孵育NRK-52E,观察不同时间(6、12、24 h)对细胞增殖影响。以上细胞增殖测定均采用四甲基偶氮唑盐法(MTT)。结果:(1)终质量浓度为1 mg·ml-1的d-BSA超载NRK-52E 24 h后无明显促进细胞增殖的作用(P>0.05);终质量浓度为5 mg·ml-1的d-BSA能够促进细胞增殖(P<0.05),终质量浓度为10、20、50 mg·ml-1的d-BSA能够显著促进细胞增殖(P<0.01)。(2)以终质量浓度为0.1 ng·ml-1的FK506预处理NRK-52E,细胞增殖与对照组比较差异无统计学意义(P>0.05);终质量浓度为1 ng·ml-1的FK506具有抑制d-BSA诱导的细胞增殖的作用(P<0.05);10、20 ng·ml-1FK506能够显著抑制-d-BSA诱导的细胞增殖(P<0.01)。(3)终质量浓度为10 ng·ml-1的FK506预处理4 h后加入终质量浓度为20 mg·ml-1d-BSA共孵育NRK-52E,6 h后,具有抑制细胞增殖的作用(P<0.05),共孵育12、24 h后,抑制细胞增殖的作用更加显著(P<0.01)。结论:d-BSA超载NRK-52E可以诱导细胞增殖,FK506具有抑制d-BSA促进NRK-52E细胞增殖的作用。Objective: To investigate effects of FK506 on d-BSA-overloaded proliferation of normal rat kidney proximal tubular epithelial cell line(NRK-52E) cells.Methods:(1) NRK-52E were overloaded by different concentrations of d-BSA(1,5,10,20,50 mg·ml-1),normal cultured NRK-52E as the contral.The cell proliferation was observed.The induced time(0,6,12,24 h) whether influenced on cell proliferation or not was observed.(2) Proliferation of NRK-52E which were overloaded with d-BSA(20 mg·ml-1) for 24 h after preteated with FK506(0.1,1,10,20 ng·ml-1) for 4 h was observed.(3) Proliferation of NRK-52E which were overloaded with d-BSA(20 mg·ml-1) for 24 h after preteated with FK506(10 ng·ml-1) for 4 h was observed at 6,12,24 h time point.The cells were determined by MTT assay.Results:(1) Compared with the control group,no cells proliferation were observed when NRK-52E overloaded with 1 mg·ml-1 d-BSA for 24 h(P〉0.05): but 5 mg·ml-1 d-BSA could cause NRK-52E proliferation(P0.05);1 ng·ml-1FK506 could inhibit proliferation of NRK-52E(P〈0.05);Inhibition of 1,10,20 ng·ml-1 FK506 were more obviously(P〈0.01).(3) FK506(10 ng·ml-1) pretreating 4 h later induced together with d-BSA(20 mg·ml-1) for 6 h,the proliferation of NRK-52E could be inhibited compared with d-BSA(20 mg·ml-1) group(P〈0.05);12 h and 24 h later,the proliferation of NRK-52E were inhibited significantly(P〈0.01).Conclusion: d-BSA may induce proliferation of NRK-52E cells and FK506 could inhibit it.

关 键 词:他克莫司 肾小管上皮细胞 去脂牛血清白蛋白 

分 类 号:R392.12[医药卫生—免疫学]

 

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