华西口腔医学杂志

• 基础研究 •    下一篇

表皮生长因子对A系小鼠胚腭突细胞增殖代谢的影响

孙晋虎,石冰,王大章   

  1. 530021 广西医科大学口腔医学院(孙晋虎曾为四川大学华西口腔医学院博士研究生),四川大学华西口腔医学院 (石 冰,王大章)
  • 收稿日期:2002-06-25 修回日期:2002-06-25 出版日期:2002-06-20 发布日期:2002-06-20
  • 基金资助:

    本课题为国家自然科学基金资助项目(编号39600164)及高等学校优秀教师教学和科研奖励基金资助项目(1999)

Effects of Epidermal Growth Factors on the Proliferation and Metabolism of A/J Mouse Embryonic Palatal Cells

  • Received:2002-06-25 Revised:2002-06-25 Online:2002-06-20 Published:2002-06-20

摘要:

目的:研究不同剂量表皮生长因子(EGF)对A系小鼠胚腭突细胞增殖和DNA、蛋白质及PGE2合成的影响。方法:实验分为9组,以平行4孔(瓶)为一组,在每组腭突细胞中分别加入EGF使其终浓度为01005 ng/ml,01010 ng/ml,01050 ng/ml,01100 ng/ml,01500 ng/ml,11000 ng/ml,51000 ng/ml,101000 ng/ml,501000 ng/ml,每组均设空白对照,在加入EGF并培养第1、3、5天后分别检测细胞的OD值,DNA、蛋白质和PGE2的含量。结果:EGF可显著增加腭突细胞的OD值,促进DNA和PGE2合成,增大了细胞指数。EGF含量在01005~101000 ng/ml浓度范围内,呈剂量依赖性,101000 ng/ml时EGF对腭突细胞增殖的作用最强。结论:EGF显著刺激了A系小鼠胚腭突细胞分裂代谢,促进腭突细胞的增殖分化。

关键词: 表皮生长因子, 胚腭突, 增殖代谢, 细胞培养

Abstract:

Objective:The purpose of this study was to investigate the effects of epidermal growth factors (EGFs) with different concen- tration on the OD, DNA, protein, and PGE2of A/J mouse embryonic palatal shelves cells (A/J MEPC) isolated from embryonic palatal shelves.Methods:The mouse embryonic palatal shelves cellswere grown in different 39 pores (or bottles) with 9 gradient concentrations of EGF (01005, 01010, 01050,01100, 01500, 11000, 51000, 101000, 501000 ng/ml), and four pores were prepared for the same concentration, then the OD, DNA, protein and PGE2of A/JMEPCwere measured after1 day, 3 days and 5 days.Results:EGFs stimulated DNA and PGE2synthesis of A/JMEPC, and augmented proliferation index (PIX). Their effects were very obvious in promoting the proliferation of A/JMEPC, when the concentrationwas 101000 ng/ml.Conclusion:EGFmay be important in regulating proliferation and metabolism of embryonic palatal shelves cells.

Key words: epidermal growth factors, cell culture, proliferation and metabolism, embryonic palatal shelves