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抑肽素对小鼠肾缺血再灌注损伤中氧化应激和炎症的影响。

Effects of kallistatin on oxidative stress and inflammation on renal ischemia-reperfusion injury in mice.

作者信息

Zhou Shuqin, Sun Yingying, Zhuang Yugang, Zhao Wei, Chen Yuanzhuo, Jiang Bojie, Guo Changfeng, Zhang Zhonglin, Peng Hu, Chen Yanqing

机构信息

Department of Emergency & Critical Care Medicine,Shanghai Tenth People's Hospital, Tongji University, 301 Yanchang Road, Shanghai 200072, PR China.

出版信息

Curr Vasc Pharmacol. 2015;13(2):265-73. doi: 10.2174/1570161113666150204142716.

Abstract

BACKGROUND

Kallistatin (KS) is a serine proteinase. The result of KS on 'Renal Ischemia- Reperfusion Injury' (IRI) has not clearly been researched. In this study, investigative research has been conducted to draw results on the administration of human KS on kidney response conducted within a mouse model of IRI.

MATERIALS AND METHODS

BALB/c mice were used and given 30 min ischemia that was injected into the kidney which was followed with 24 h reperfusion. The human KS gene contained within an adenoviral vector was injected intravenously 30 min before reperfusion and 12h after reperfusion. Analyses illustrated what impact KS had on renal IRI in realtion to tubular necrosis, apoptotic cell death, inflammatory cytokines, renal function, and inflammatory cell infiltration.

RESULTS

KS gene transfer significantly had a positive impact on renal function (reduced blood urea-nitrogen: 73.5±13.6 vs. 195.4±14.6 mg/dL at day three, p < 0.05 and the serum creatinine levels: 0.23±0.02 vs. 0.71±0.14 mg/dL at day three, p < 0.05), reduced tubular necrosis and apoptosis of IRI kidneys. The permeation of cells that were inflamed and the manufacturing of pro-inflammatory cytokines (RANTES-is regulated through been activated with normal T-cell which are expressed and secreted, tumour necrosis interleukin-1β factor-α, and interferon-γ) resulted in significantly suppressing KS in mice with IRI. The efficacy to scavenge superoxide in tubule cells was also demonstrated by high-performance liquid chromatography.

CONCLUSION

Our study suggests a novel role of KS in renal protection after 'Renal Ischemia-Reperfusion Injury' blocking of oxidative stress and renal inflammation.

摘要

背景

激肽释放酶抑制蛋白(KS)是一种丝氨酸蛋白酶。KS对“肾缺血-再灌注损伤”(IRI)的影响尚未得到明确研究。在本研究中,进行了调查研究,以得出在IRI小鼠模型中给予人KS对肾脏反应的结果。

材料与方法

使用BALB/c小鼠,对其肾脏进行30分钟的缺血处理,随后进行24小时的再灌注。在再灌注前30分钟和再灌注后12小时静脉注射包含人KS基因的腺病毒载体。分析表明KS对肾IRI在肾小管坏死、凋亡性细胞死亡、炎性细胞因子、肾功能和炎性细胞浸润方面有何影响。

结果

KS基因转移对肾功能有显著的积极影响(第三天血尿素氮降低:73.5±13.6 vs. 195.4±14.6 mg/dL,p < 0.05;第三天血清肌酐水平:0.23±0.02 vs. 0.71±0.14 mg/dL,p < 0.05),减少了IRI肾脏的肾小管坏死和凋亡。炎性细胞的渗透以及促炎细胞因子(调节激活正常T细胞表达和分泌的RANTES、肿瘤坏死因子-α、白细胞介素-1β和干扰素-γ)的产生在IRI小鼠中导致KS显著抑制。高效液相色谱法也证明了KS在肾小管细胞中清除超氧化物的功效。

结论

我们的研究表明KS在“肾缺血-再灌注损伤”后的肾脏保护中具有新的作用,可阻断氧化应激和肾脏炎症。

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