中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (8): 1177-1183.doi: 10.3969/j.issn.2095-4344.2015.08.006

• 材料生物相容性 material biocompatibility • 上一篇    下一篇

鼠尾胶原联合血小板源性生长因子BB培养内皮细胞

曹 雯,赵爱超,陈邦党,刘 芬,马依彤,马 翔   

  1. 新疆医科大学第一附属医院冠心病二科,新疆维吾尔自治区乌鲁木齐市  830054
  • 修回日期:2014-12-09 出版日期:2015-02-19 发布日期:2015-02-19
  • 通讯作者: 马翔,博士,主任医师,副教授,硕士、博士生导师,新疆医科大学第一附属医院冠心病二科,新疆维吾尔自治区乌鲁木齐市 830054
  • 作者简介:曹雯,女,1988年生,江苏省宜兴市人,汉族,新疆医科大学在读硕士,主要从事冠状动脉粥样硬化性心脏病基础及临床方面的研究。
  • 基金资助:

    国家青年科学基金(81000089)

Combination of rat tail collagen and platelet-derived growth factor-BB for culture of human umbilical vein endothelial cells   

Cao Wen, Zhao Ai-chao, Chen Bang-dang, Liu Fen, Ma Yi-tong, Ma Xiang   

  1. Second Department of Coronary Heart Disease, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • Revised:2014-12-09 Online:2015-02-19 Published:2015-02-19
  • Contact: Ma Xiang, M.D., Chief physician, Associate professor, Master’s supervisor, Doctoral supervisor, Second Department of Coronary Heart Disease, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • About author:Cao Wen, Studying for master’s degree, Second Department of Coronary Heart Disease, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • Supported by:

    the National Natural Science Foundation of China for the Youth, No. 81000089

摘要:

背景:有研究证实,Ⅰ型鼠尾胶原可促进成肌纤维细胞的增加,对内皮细胞的迁移及成管有较为明显的作用,推断胶原可为细胞的生长提供一个较为合适的内环境。

目的:探讨鼠尾胶原联合血小板源性生长因子BB抗人脐静脉内皮细胞凋亡的效果及安全性。
方法:将第4代人脐静脉内皮细胞培养于铺有鼠尾胶原的培养皿上,用Alamar Blue法检测不同时间点的还原比率。将第4代人脐静脉内皮细胞分为4组培养于24孔板,其中生长因子组是在细胞接种前加入血小板源性生长因子BB蛋白于细胞悬浮液中;联合组需事先加入血小板源性生长因子BB蛋白于鼠尾胶中,铺于板底;最后各组均使用H2O2诱导凋亡,73 h后采用Western blot 测定血小板源性生长因子BB、凋亡相关蛋白及抗凋亡蛋白的表达,同时Tunnel检测细胞凋亡阳性率。
结果与结论:在铺有鼠尾胶原培养皿中培养人脐静脉内皮细胞的成管数量明显多于正常培养人脐静脉内皮细胞的成管数量(P < 0.05)。鼠尾胶原培养的细胞与正常对照细胞生长状态相似,说明鼠尾胶原对细胞无明显毒性作用。联合组血小板源性生长因子BB、Bcl-2、p-Akt表达高于其余3组(P < 0.05),Bax表达低于其余3组(P < 0.05)。联合组细胞凋亡率低于生长因子组、H2O2组(P < 0.05)。表明鼠尾胶原对人脐静脉内皮细胞无明显毒性作用,联合血小板源性生长因子BB生长因子后可显著增强抗细胞凋亡效果。

中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程


全文链接:

关键词: 生物材料, 材料相容性, 人脐静脉内皮细胞, 鼠尾胶原, 血小板源性生长因子BB, 抗凋亡, 国家自然科学基金

Abstract:

BACKGROUND: Rat tail collagen type I can promote the increase of muscle fiber cells and migration and tube formation of endothelial cells, which is speculated to provide a more suitable internal environment for the growth of cells.

OBJECTIVE: To observe the effect and safety of platelet-derived growth factor-BB (PDGF-BB) with rat rail collagen against apoptosis of human umbilical vein endothelial cells in vitro.
METHODS: The passage 4 human umbilical vein endothelial cells were cultured in the medium of rat rail collagen and the reduction ratio in different time points was detected by Alamar Blue. The passage 4 human umbilical vein endothelial cells were divided into four groups and cultured in 24-well culture plates: control group, PDGF-BB group, H2O2 group, PDGF-BB+collagen group. H2O2 was used to induce cell apoptosis in all the groups. Western blot was used to detect the expression of PDGF-BB, apoptosis-related protein and anti-apoptosis protein after 72 hours. Meanwhile, TUNEL method was used to detect cell apoptotic rate.
RESULTS AND CONCLUSION: The tube formation in the human umbilical vein endothelial cells was more than that cultured in normal medium (P < 0.05). Cells cultured with rat tail collagen showed similar growth to normal control cells, indicating rat tail collagen had no cytotoxicity. The expressions of PDGF-BB, Bcl-2, and p-Akt in the PDGF-BB+collagen group were significantly higher than those in the other three groups (P < 0.05), but the expression of Bax was lower than that in the other three groups (P < 0.05). The apoptotic rate in the PDGF-BB+collagen group was lower than the PDGF-BB group and H2O2 group (P < 0.05). These findings indicate that rat tail collagen has no cytotoxicity to human umbilical vein endothelial cells, and rat tail collagen combined with PDGF-BB can predominantly enhance anti-apoptosis effects.

中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程


全文链接:

Key words: Endothelial Cells, Collagen, Platelet-Derived Growth Factor

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