中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (11): 1712-1716.doi: 10.3969/j.issn.2095-4344.2015.11.014

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

草酸钙晶体刺激下人巨噬细胞高迁移率族蛋白B1的表达

黄 鹏,邓耀良,黎承杨,陶芝伟,王 翔,奉有才,吴 博   

  1. 广西医科大学第一附属医院泌尿外科,广西壮族自治区南宁市 530021
  • 修回日期:2015-01-06 出版日期:2015-03-12 发布日期:2015-03-12
  • 作者简介:黄鹏,男,1987年生,广西壮族自治区德保县人,壮族,2014年广西医科大学毕业,硕士,主要从事泌尿外科研究。

Calcium oxalate crystals stimulate expression of high mobility group box-1 protein in human macrophages  

Huang Peng, Deng Yao-liang, Li Cheng-yang, Tao Zhi-wei, Wang Xiang, Feng You-cai, Wu Bo   

  1. Department of Urinary Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China
  • Revised:2015-01-06 Online:2015-03-12 Published:2015-03-12
  • About author:Huang Peng, Master, Department of Urinary Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China

摘要:

背景:研究发现在肾结石模型中肾间质晶体周围存在大量单核/巨噬细胞浸润,显示巨噬细胞可能参与晶体在肾脏中的沉积过程,而巨噬细胞是人体重要的固有免疫细胞,在肾脏中沉积的大量的单核/巨噬细胞吞噬晶体,会产生一些炎症因子损伤和破坏肾小管上皮细胞,最终有利于结石的形成。

目的:探讨一水草酸钙晶体刺激人巨噬细胞后高迁移率族蛋白B1的表达水平。
方法:用100 mg/L的一水草酸钙刺激巨噬细胞,分别于刺激后0,6,12,24和36 h,用Western blot检测细胞总蛋白和细胞浆内高迁移率族蛋白B1的含量;用实时荧光定量PCR,检测细胞中高迁移率族蛋白B1 mRNA表达情况;分别于一水草酸钙刺激后0,1,2和4 h,用酶联免疫吸附实验测定细胞培养液上清中肿瘤坏死因子α和白细胞介素6的水平。
结果与结论:一水草酸钙刺激后0-6 h细胞浆内高迁移率族蛋白B1的含量较低,刺激后12-36 h细胞浆内高迁移率族蛋白B1逐渐增加。一水草酸钙刺激后0-6 h,巨噬细胞总蛋白中高迁移率族蛋白B1含量不高,在刺激后12 h细胞总蛋白高迁移率族蛋白B1的含量开始增加,并且在刺激后24-36 h保持在较高水平。RT-PCR结果显示,一水草酸钙刺激后0-12 h,培养细胞中高迁移率族蛋白B1的mRNA表达量无明显变化,刺激后18-24 h培养细胞中高迁移率族蛋白B1的mRNA表达量明显增加。ELISA结果显示,一水草酸钙刺激后2 h,细胞培养液上清中肿瘤坏死因子α和白细胞介素6表达和释放增加,4 h达到明显高峰。结果表明,一水草酸钙可以诱导人巨噬细胞高迁移率族蛋白B1的表达及mRNA表达增加;诱导人巨噬细胞内肿瘤坏死因子α和白细胞介素6的表达增加,且高迁移率族蛋白B1表达的时间明显晚于肿瘤坏死因子a和白细胞介素6的释放时间。


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, 组织工程, 高迁移率族B1, 一水草酸钙, 巨噬细胞

Abstract:

BACKGROUND: There are a large amount of infiltrated monocytes and macrophages around the renal interstitial crystals in a kidney model, indicating that macrophages may be involved in the process of crystal deposition in the kidney. As macrophages are important human innate immune cells, a large number of infiltrated monocytes and macrophages in the kidney will produce some inflammatory injuries and damage renal tubular epithelial cells, which ultimately lead to the formation of stones.

OBJECTIVE: To study the expression of after high mobility group box-1 protein (HMGB1) in macrophages stimulated by calcium oxalate monohydrate crystals.
METHODS: Western blot assay was used to detect total protein and HMGB1 levels in the cytoplasm of macrophages under 100 mg/L calcium oxalate monohydrate stimulation for 0, 6, 12, 24, 36 hours. Meanwhile, real-time quantitative PCR was adopted to determine the mRNA expression of HMGB1. Tumor necrosis factor α and interleukin-6 levels in the cultured cell supernatant at 0, 1, 2 and 4 hours after calcium oxalate monohydrate stimulation were measured using ELISA.
RESULTS AND CONCLUSION: Under the calcium oxalate monohydrate stimulation, the level of HMGB1 in the cytoplasm of macrophages was lower within 0-6 hours, but gradually increased within 12-36 hours; the level of HMGB1 in the total protein of macrophages was not high within 0-6 hours, began to increase at 12 hours, and then kept at a higher level within 24-36 hours. RT-PCR results showed that under the calcium oxalate monohydrate stimulation, the mRNA level of HMGB1 in the cultured cells had no changes within 0-12 hours, but significantly increased within 18-24 hours. ELISA results showed that the levels of tumor necrosis factor α and interleukin-6 in the cultured cell supernatant subject to calcium oxalate monohydrate were increased at 2 hours and peaked at 4 hours. These findings indicate that calcium oxalate monohydrate can increase the HMGB1 expression in macrophages at mRNA and protein levels, and also induce the increase in tumor necrosis factor α and interleukin-6 expression in macrophages. Moreover, the expression of HMGB1 is later than the release of tumor necrosis factor α and interleukin-6.


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: High Mobility Group Proteins, Calcium Oxalate, Macrophages

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