中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (38): 6165-6171.doi: 10.3969/j.issn.2095-4344.2014.38.017

• 组织构建细胞学实验 cytology experiments in tissue construction • 上一篇    下一篇

姜黄素抑制NRLP-3表达对抗肿瘤坏死因子α诱导的人血管内皮细胞炎症

赵  芸1,2,韩秀敏1,赵  明1,孙英慧3,朱鲜阳1,张端珍1   

  1. 解放军沈阳军区总医院,1先心病内科,3医学实验科,辽宁省沈阳市  110016;2大连医科大学,辽宁省大连市  116044
  • 收稿日期:2014-06-18 出版日期:2014-09-10 发布日期:2014-09-10
  • 通讯作者: 韩秀敏,博士,主任医师,解放军沈阳军区总医院先心病内科,辽宁省沈阳市 110016
  • 作者简介:赵芸,女,1988年生,山东省泰安市人,汉族,2014年大连医科大学毕业,硕士,医师,主要从事结构性心脏病和肺动脉高压的诊断与治疗研究。
  • 基金资助:

    辽宁省科学计划项目(2011225021)

Protection of curcumin against tumor necrotic factor-alpha-mediated inflammatory injury of vascular endothelial cells

Zhao Yun1, 2, Han Xiu-min1, Zhao Ming1, Sun Ying-hui3, Zhu Xian-yang1, Zhang Duan-zhen1   

  1. 1Department of Congenital Heart Disease, General Hospital of Shenyang Military Area Command of PLA, Shenyang 110016, Liaoning Province, China; 2Dalian Medical University, Dalian 116044, Liaoning Province, China; 3Department of Experimental Medicine, General Hospital of Shenyang Military Area Command of PLA, Shenyang 110016, Liaoning Province, China
  • Received:2014-06-18 Online:2014-09-10 Published:2014-09-10
  • Contact: Han Xiu-min, M.D., Chief physician, Department of Congenital Heart Disease, General Hospital of Shenyang Military Area Command of PLA, Shenyang 110016, Liaoning Province, China
  • About author:Zhao Yun, Master, Physician, Department of Congenital Heart Disease, General Hospital of Shenyang Military Area Command of PLA, Shenyang 110016, Liaoning Province, China; Dalian Medical University, Dalian 116044, Liaoning Province, China
  • Supported by:

    Science and Technology Plan of Liaoning Province, No. 2011225021

摘要:

背景:前期研究表明,姜黄素对细胞氧化应激炎症有重要作用。
目的:拟进一步阐明姜黄素在血管内皮细胞病理性炎症反应中的生物学作用及机制。
方法:以人血管内皮细胞为细胞模型,应用肿瘤坏死因子α(10 μg/L)作为刺激因子,姜黄素(0,50,100 µmol/L)孵育24 h作为干预治疗组。应用HRP标记的BSA检测内皮细胞通透性,应用罗丹明标记的鬼笔碱染色检测F-actin变化,酶联免疫吸附实验检测细胞分泌白细胞介素1β的变化,进一步通过免疫荧光染色检测细胞内核转录因子κB蛋白表达和转位;应用Western blot方法检测炎症小体相关基因NRLP-3和caspase-1的表达。
结果与结论:HRP-BSA检测提示,姜黄素可呈剂量依赖性对抗刺激引起的血管内皮细胞通透性增加。同时,抑制F-actin应力纤维的形成。ELISA检测发现,姜黄素治疗后,可呈剂量依赖性抑制肿瘤坏死因子α刺激引起的血管内皮细胞白细胞介素1β分泌。同时,免疫荧光分析证实,肿瘤坏死因子α刺激后,对照组血管内皮细胞中核转录因子κB表达持续增高且发生明显的入核转位现象,而100 μg/L姜黄素干预组细胞中炎症递质转录因子核κB表达定位无明显改变。Western blotting结果证实,炎症小体调控基因NRLP3和caspase-1表达在姜黄素干预组受到明显抑制。结果表明姜黄素可通过减少核转录因子κB的表达对抗肿瘤坏死因子α刺激引起的炎症小体活化和白细胞介素1β分泌,对抗细胞病理性炎症损伤发生。



中国组织工程研究
杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程


全文链接:

关键词:
组织构建,
血管内皮细胞, 姜黄素, 肿瘤坏死因子α, 炎性小体, 核转录因子κB

Abstract:

BACKGROUND: Previous studies have shown that, curcumin plays a crucial role on the inflammation in cells caused by oxidative stress.
OBJECTIVE: To elucidate the biological effect and mechanism of curcumin in the pathological inflammation reaction in vascular endothelial cells.  
METHODS: Human vascular endothelial cells were taken as the cell models. Tumor necrosis factor (10 μg/L) treatment was used to induce the inflammation of cells. Curcumin (0, 50, 100 μg/L) treatment for 24 hours was used to intervene the cells. The intercellular hyperpermeability of the vascular endothelial cell monolayers was examined by HRP-conjugated bovine serum albumin, and intercellular filamentous actin stress fiber formation was examined by rhodamin-phalloidin staining. ELISA assay was used to detect the secretion of interleukin-1β in vascular endothelial cells. Immunoflurensece staining was applied to investigate the expression and 
translocalization of nuclear factor-κB. Western blot analysis reflected the expression of NRLP3 and caspase-1.
RESULTS AND CONCLUSION: HRP-bovine serum albumin detection results showed that, curcumin inhibited the intercellular hyperpermeability of the vascular endothelial cell monolayers and the formation of robust intercellular filamentous actin in a dose-dependent manner. ELISA assay showed that curcumin protected vascular endothelial cells against tumor necrotic factor-α-induced interleukin-1β secretion in a dose-dependent manner. Meanwhile, the nuclear factor-κB expression was increased and the translocation of nuclear factor-κB into the nuclei was obviously seen in vascular endothelial cells induced by tumor necrosis factor-α, but the translocation was not changed in 100 μg/L curcumin-treated cells. Furthermore, western blot analysis revealed that the expression of NRLP3 and caspase-1 were inhibited in curcumin-treated cells. Curcumin can inhibit tumor necrosis factor-α-induced activation of inflammasome and secretion of interleukin-1β in vascular endothelial cells by down-regulating the expression of nuclear factor-κB, thus prevent pathological inflammatory injury in cells.



中国组织工程研究
杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程


全文链接:

Key words: endothelial cells, blood vessels, tumor necrosis factor-alpha, nuclear factor-κB

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