中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (15): 2305-2309.doi: 10.3969/j.issn.2095-4344.2015.15.002

• 软骨组织构建 cartilage tissue construction • 上一篇    下一篇

吡咯喹啉醌促进软骨细胞增殖及抑制白细胞介素1β介导的软骨细胞凋亡

张振江,吕国枫   

  1. 大连医科大学运动医学教研室,辽宁省大连市  116044
  • 修回日期:2015-03-18 出版日期:2015-04-09 发布日期:2015-04-09
  • 通讯作者: 吕国枫,硕士生导师,大连医科大学运动医学教研室,辽宁大连市 116044
  • 作者简介:张振江,男,山东省济南市人,大连医科大学在读硕士,主要从事运动损伤与康复的研究。

Pyrroloquinoline quinone promotes chondrocyte proliferation and inhibits interleukin-1beta-induced chondrocyte apoptosis

Zhang Zhen-jiang, Lv Guo-feng   

  1. Department of Sports Medicine, Dalian Medical University, Dalian 116044, Liaoning Province, China
  • Revised:2015-03-18 Online:2015-04-09 Published:2015-04-09
  • Contact: Lv Guo-feng, Master’s supervisor, Department of Sports Medicine, Dalian Medical University, Dalian 116044, Liaoning Province, China
  • About author:Zhang Zhen-jiang, Studying for master’s degree, Department of Sports Medicine, Dalian Medical University, Dalian 116044, Liaoning Province, China

摘要:

背景:研究发现吡咯喹啉醌可以促进许旺细胞增殖及生长因子的分泌,但其对关节软骨或关节软骨细胞有何作用尚未见报道。
目的:验证吡咯喹啉醌对膝关节软骨细胞增殖及对白细胞介素1β介导的软骨细胞凋亡的影响,以探讨吡咯喹啉醌保护软骨细胞的作用机制。
方法:在无菌环境下消化得到1月龄新西兰白兔膝关节软骨细胞,培养并传代,第2代软骨细胞用于实验。细胞贴壁后用吡咯喹啉醌浓度为0,6.25,12.5,25.0,50.0,100.0 μmol/L的无血清培养基分别培养软骨细胞48 h,采用MTT法检测细胞的增殖活力;培养30 h,采用流式细胞术测细胞周期。细胞贴壁后用不同浓度吡咯喹啉醌预处理软骨细胞24 h,然后加入白细胞介素1β作用15 h后,采用流式细胞术测细胞凋亡率。
结果与结论:吡咯喹啉醌能明显提高软骨细胞的增殖活力、S期,G2/M比例和细胞增殖指数(P < 0.05),且在吡咯喹啉醌浓度为12.5 μmol/L和25.0 μmol/L时作用最强。吡咯喹啉醌能明显抑制白细胞介素1β介导的软骨细胞早期凋亡和晚期凋亡(P < 0.05),在吡咯喹啉醌浓度为25.0 μmol/L时作用最明显。结果表明吡咯喹啉醌可以促进膝关节软骨细胞的分裂与增殖,对白细胞介素1β介导的软骨细胞凋亡有抑制作用。



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, 软骨细胞, 吡咯喹啉醌, 流式细胞术, 细胞周期, 细胞凋亡, 白细胞介素1β

Abstract:

BACKGROUND: Pyrroloquinoline quinone is found to accelerate Schwann cell proliferation and growth factor secretion, but there is no report addressing its role in articular cartilage and chondrocytes. 
OBJECTIVE: To investigate the role of pyrroloquinoline quinone in chondrocyte proliferation and interleukin-1β-induced chondrocyte apoptosis in the articular cartilage of knee joints and to verify the protective mechanism involved.
METHODS: Chondrocytes were isolated from New Zealand white rabbits (1 month of age), digested under aseptic conditions, and cultured in DMEM/F12 in the presence of 10% fetal bovine serum to allow for proliferation until passage 2. Adherent chondrocytes were cultured in serum-free DMEM/F12 medium with 0, 6.25, 12.5, 25.0, 50.0 and 100.0 μmol/L pyrroloquinoline quinone, separately. Proliferation activity was determined by MTT at 48 hours of pyrroloquinoline quinone administration. Cell cycle was determined by flow cytometry at 30 hours after pyrroloquinoline quinone administration. Apoptosis was determined by flow cytometry following 24 hours of pyrroloquinoline quinone pretreatment and 15 hours of interleukin-1β induction.
RESULTS AND CONCLUSION: Pyrroloquinoline quinone enhanced chondrocyte proliferation activity, increased percentage of S phase and G2/M phase in a dose dependent manner and reached the peak when the concentration of pyrroloquinoline quinone was 12.5-25.0 μmol/L (P < 0.05). Pyrroloquinoline quinone also inhibited interleukin-1β-induced chondrocyte apoptosis in early and late stage, and 25.0 μmol/L pyrroloquinoline quinone had the best effects (P < 0.05). These findings suggest pyrroloquinoline quinone can promote chondrocyte division and proliferation, and protect the cells from interleukin-1β-induced apoptosis.



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: Chondrocytes, Interleukin-1beta, Apoptosis

中图分类号: