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中国临床药理学与治疗学 ›› 2005, Vol. 10 ›› Issue (12): 1364-1367.

• 研究原著 • 上一篇    下一篇

Mn2+对庆大霉素导致的人肾小管上皮细胞系损伤的保护作用

王志鹏, 张蓉, 刘莉, 梅其炳   

  1. 第四军医大学药学系药理学教研室, 西安 710032, 陕西
  • 收稿日期:2005-10-09 修回日期:2005-11-26 出版日期:2005-12-26 发布日期:2020-11-11
  • 通讯作者: 梅其炳,男,博士,教授,博士生导师,研究方向:新药安全性评价,分子药理学。Tel:029-84774552

Protection of Mn2+on Injury of human kidney tubularepithelial cell line induced by bentamicin

WANG Zhi-peng, ZHANG Rong, LIU Li, MEI Qi-bing   

  1. Department of Pharmacology,School of Pharmacy,Fourth Military Medical University,Xi' an 710032,Shaanxi,China
  • Received:2005-10-09 Revised:2005-11-26 Online:2005-12-26 Published:2020-11-11

摘要: 目的: 观察Mn2+ 对庆大霉素导致的人肾小管上皮细胞系的损伤有保护作用,并探讨其机制 。方法: 用庆大霉素作用于人肾小管上皮细胞系(HK-2),造成肾损伤模型,MTT 法检测 Mn2+ 对细胞增殖活力的影响;分光光度法检测 Mn2+ 导致的 SOD、LDH 活力和 NAG 酶含量的改变;电镜观察 Mn2+ 作用后 HK-2 细胞微结构改变。结果: Mn2+ 可使庆大霉素损伤的 HK-2 细胞增殖活力增加,降低 LDH 酶活力,减少NAG 酶含量,升高SOD 酶活性,减轻细胞线粒体肿胀程度和减少溶酶体膜的破裂 。结论: Mn2+ 对庆大霉素导致的人肾小管上皮细胞系的损伤有保护作用。其机制可能与减轻细胞氧化损伤 、降低线粒体肿胀程度、保护溶酶体的完整性和减少溶酶漏出有关。

关键词: Mn2+, 庆大霉素, 肾小管上皮细胞, 氧化损伤, 自由基

Abstract: AIM: To evaluate the protection of Mn2+ on injury of human kidney tubularepithelial cell line in-duced by gentamicin,and investigate its principals.METHODS: Gentamicin was used to injury human kid-ney tubularepithelial cell line (HK-2) to produce model of kidney injury.MTT method was used to measure effect of Mn2+ on proliferation of cells afterthey were injured by gentamicin.The spectrophotometry method was used to observe the change of LDH,NAG and SOD effected by Mn2+.Ultrastructure was examined by electron microsco-py.RESULTS: Although HK-2 cells were injured,Mn2+ promoted cells proliferation,decreased LDH activity and NAG content,increased SOD activity,and alleviated dilation of the mitochondria and crushing of lysosomes.CONCLUSION: Mn2+ can protect human kidney tubularepithelial cell line from injury induced by gentamicin.It may be in relation to inhibiting the oxidative injury,light-ening dilation of the mitochondria,protecting the integrity of lysosomes and decrease the leakage of enzyme.

Key words: Mn2+, gentamicin, kidney tubalarepi-thelid cell, oxidative injury, oxygen free radicals

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