中国组织工程研究 ›› 2023, Vol. 27 ›› Issue (35): 5665-5669.doi: 10.12307/2023.685

• 骨组织构建 bone tissue construction • 上一篇    下一篇

茶多酚对脂多糖刺激下成骨细胞增殖分化的影响

秦祎雄,袁子健,谢山周,祝英文,陈明慧,韩  标,郭  勇   

  1. 桂林医学院智能医学与生物技术学院,广西高校生物化学与分子生物学重点实验室,广西壮族自治区桂林市   541199
  • 收稿日期:2022-08-09 接受日期:2022-10-18 出版日期:2023-12-18 发布日期:2023-06-05
  • 通讯作者: 郭勇,博士,教授,桂林医学院智能医学与生物技术学院,广西高校生物化学与分子生物学重点实验室,广西壮族自治区桂林市 541199
  • 作者简介:秦祎雄,男,1996年生,湖北省黄冈市人,汉族,桂林医学院在读硕士,主要从事骨生物力学研究。
  • 基金资助:
    国家自然科学基金项目(32071309),项目负责人:郭勇;广西壮族自治区自然科学基金项目(2018GXNSFAA281357),项目负责人:郭勇;国家级大学生创新创业项目(202010601027),项目负责人:陈明慧

Effect of tea polyphenols on proliferation and differentiation of osteoblasts stimulated by lipopolysaccharide

Qin Yixiong, Yuan Zijian, Xie Shanzhou, Zhu Yingwen, Chen Minghui, Han Biao, Guo Yong   

  1. Guangxi Higher Education Key Laboratory of Biochemistry and Molecular Biology, College of Intelligent Medicine and Biotechnology, Guilin Medical University, Guilin 541199, Guangxi Zhuang Autonomous Region, China
  • Received:2022-08-09 Accepted:2022-10-18 Online:2023-12-18 Published:2023-06-05
  • Contact: Guo Yong, PhD, Professor, Guangxi Higher Education Key Laboratory of Biochemistry and Molecular Biology, College of Intelligent Medicine and Biotechnology, Guilin Medical University, Guilin 541199, Guangxi Zhuang Autonomous Region, China
  • About author:Qin Yixiong, Master candidate, Guangxi Higher Education Key Laboratory of Biochemistry and Molecular Biology, College of Intelligent Medicine and Biotechnology, Guilin Medical University, Guilin 541199, Guangxi Zhuang Autonomous Region, China
  • Supported by:
    the National Natural Science Foundation of China, No. 32071309 (to GY); Natural Science Foundation of Guangxi Zhuang Autonomous Region, No. 2018GXNSFAA281357 (to GY); National Undergraduate Innovation and Entrepreneurship Project, No. 202010601027 (to CMH)

摘要:


文题释义:

茶多酚:是一种提纯自天然植物茶叶的多酚类化合物,具有较强的抗炎、抗氧化、清除氧自由基的能力。体外研究表明,茶多酚对成骨细胞增殖有明显的促进作用。
脂多糖:革兰阴性细菌外膜的主要组成成分,能诱导多种炎症因子的产生,可以影响成骨细胞增殖分化。

背景:研究表明,茶多酚在牙周炎等疾病的研究中能发挥抗炎、抗氧化作用。
目的:探讨茶多酚在脂多糖刺激下对小鼠成骨细胞增殖分化及氧化应激的影响。
方法:体外培养小鼠成骨细胞MC3T3-E1,分4组处理:对照组常规培养;脂多糖组加入10 μg/mL脂多糖,茶多酚组加入1 μg/mL茶多酚,联合组加入10 μg/mL脂多糖+1 μg/mL茶多酚。采用MTT法检测细胞增殖情况,碱性磷酸酶试剂盒检测细胞碱性磷酸酶活性,偶氮偶联法检测细胞碱性磷酸酶染色程度,钙检测试剂盒检测细胞钙沉积量,超氧化物试剂盒检测细胞超氧化物含量,丙二醛试剂盒检测细胞丙二醛含量。

结果与结论:①与对照组相比,脂多糖组成骨细胞增殖活性、碱性磷酸酶活性、钙沉积量降低(P < 0.05),碱性磷酸酶染色程度降低(P < 0.01),超氧化物和丙二醛含量增加(P < 0.05);茶多酚组成骨细胞增殖活性、碱性磷酸酶活性、钙沉积量升高(P < 0.05),碱性磷酸酶染色程度提高(P < 0.01),超氧化物和丙二醛含量减少(P < 0.05);②与脂多糖组相比,联合组成骨细胞增殖活性、钙沉积量升高(P < 0.05),碱性磷酸酶染色程度提高(P < 0.001),超氧化物和丙二醛含量减少(P < 0.05);③结果表明,茶多酚可以促进成骨细胞的增殖分化,降低氧化应激因子的表达水平,逆转脂多糖对成骨细胞的不良影响。

https://orcid.org/0000-0002-5206-8016 (郭勇) 

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

关键词: 成骨细胞, 脂多糖, 茶多酚, 增殖, 成骨分化, 氧化应激

Abstract: BACKGROUND: Studies have shown that tea polyphenols can play anti-inflammatory and antioxidant effects in the investigation of periodontitis and other diseases.  
OBJECTIVE: To investigate the effects of tea polyphenols on the proliferation, differentiation and oxidative stress of mouse osteoblasts induced by lipopolysaccharide.
METHODS: The mouse osteoblasts MC3T3-E1 were cultured in vitro, and the MC3T3-E1 cells were randomly divided into four groups, namely the control group (conventional culture), the lipopolysaccharide group (10 μg/mL lipopolysaccharide), the tea polyphenols group (1 μg/mL tea polyphenols), and the combination group (10 μg/mL lipopolysaccharide + 1 μg/mL tea polyphenols). The MTT assay was used to detect the cell proliferation. The alkaline phosphatase activity was detected by alkaline phosphatase kit. The alkaline phosphatase staining degree was detected by alkaline phosphatase azo coupling method. The calcium deposition amount of the cells was detected by calcium detection kit. The superoxide content of cells was detected by superoxide kit. The malondialdehyde content of cells was detected by malondialdehyde kit.  
RESULTS AND CONCLUSION: (1) Compared with the control group, the proliferation activity, alkaline phosphatase activity and calcium deposition of osteoblasts were significantly decreased in the lipopolysaccharide group (P < 0.05); the staining degree of alkaline phosphatase was significantly decreased (P < 0.01); and the contents of superoxide and malondialdehyde were significantly increased (P < 0.05). The proliferation activity, alkaline phosphatase activity and calcium deposition of osteocytes in the tea polyphenols group were significantly increased (P < 0.05); the staining degree of alkaline phosphatase was significantly increased (P < 0.01); and the contents of superoxide and malondialdehyde were significantly decreased (P < 0.05). (2) Compared with the lipopolysaccharide group, the proliferation activity and calcium deposition of bone cells in the combination group were significantly increased (P < 0.05); the staining degree of alkaline phosphatase was significantly increased (P < 0.001); and the contents of superoxide and malondialdehyde were significantly decreased (P < 0.05). (3) The results showed that tea polyphenols can promote the proliferation and differentiation of osteoblasts, reduce the expression levels of oxidative stress factors, and reverse the adverse effects of lipopolysaccharides on osteoblasts.

Key words: osteoblast, lipopolysaccharide, tea polyphenols, proliferation, osteogenic differentiation, oxidative stress

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