中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (32): 5778-5784.doi: 10.3969/j.issn.2095-4344.2013.32.006

• 脂肪干细胞 adipose-derived stem cells • 上一篇    下一篇

脂肪干细胞来源的生长因子与口腔黏膜成纤维细胞增殖

赵佳佳,胡  丽,刘加荣,宫妮雅,陈莉莉   

  1. 华中科技大学同济医学院附属协和医院,湖北省武汉市  430022
  • 收稿日期:2012-12-19 修回日期:2012-12-27 出版日期:2013-08-06 发布日期:2013-08-06
  • 通讯作者: 陈莉莉,教授,主任医师,武汉协和医院口腔医疗中心,湖北省武汉市 430022 chenlili@whuh.com
  • 作者简介:赵佳佳☆,女,1987年生,安徽省芜湖市人,汉族,在读博士,主要从事组织工程与创伤修复研究。 Zhaojiajia0130@163.com
  • 基金资助:

    国家自然科学基金重大国际合作与交流项目(31110103905);国家自然科学面上基金资助项目(30970740);湖北省杰出青年基金资助项目(2011CDA082);华中科技大学自主创新研究基金资助项目(2011JC071)。

Adipose stem cell-derived growth factors and proliferation of oral mucosa fibroblasts

Zhao Jia-jia, Hu Li, Liu Jia-rong, Gong Ni-ya, Chen Li-li   

  1. Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan  430022, Hubei Province, China
  • Received:2012-12-19 Revised:2012-12-27 Online:2013-08-06 Published:2013-08-06
  • Contact: Chen Li-li, Professor, Chief physician, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China chenlili@whuh.com
  • About author:Zhao Jia-jia☆, Studying for doctorate, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China zhaojiajia0130@163.com
  • Supported by:

    the National Natural Science Foundation of China (Projects of International Cooperation and Exchanges), No. 31110103905*; National Natural Science Foundation of China (General Project), No. 30970740*; Excellent Youth Funds of Hubei Province, No. 2011CDA082*; Independent Innovation Research Funds of Huazhong University of Science and Technology, No. 2011JC071*

摘要:

背景:近年来脂肪干细胞被证实对软组织创伤修复具有促进作用,关于其机制的研究中,更多的学者倾向于脂肪干细胞的旁分泌机制,即脂肪干细胞分泌的各种细胞因子对创伤部位细胞的修复功能具有促进作用。但脂肪干细胞分泌的因子种类,每种因子的含量,以及对软组织创伤修复,尤其是口腔黏膜的作用,鲜有报道。
目的:观察脂肪干细胞条件培养液中血管内皮生长因子、血小板源性生长因子以及碱性成纤维细胞生长因子对口腔黏膜成纤维细胞增殖的影响。
方法:采用蛋白芯片技术,检测脂肪干细胞条件培养液中血管内皮生长因子、血小板源性生长因子以及碱性成纤维细胞生长因子的含量。分别于1,2,3,4,5 d时,采用CCK-8法检测0,1,10,20,50,100 μg/L血管内皮生长因子、血小板源性生长因子以及碱性成纤维细胞生长因子以及在脂肪干细胞条件培养液中分别加入上述各因子的中和抗体后,对口腔黏膜成纤维细胞增殖的影响。
结果与结论:脂肪干细胞条件培养液中血管内皮生长因子、血小板源性生长因子以及碱性成纤维细胞生长因子信号值均大于300。脂肪干细胞条件培养液对成纤维细胞的增殖有明显的促进作用,其中,血小板源性生长因子和碱性成纤维细胞生长因子的促进作用非常明显,且随着因子浓度的变化而呈现峰值性改变,血小板源性生长因子的促进作用在50 μg/L时达到峰值,碱性成纤维细胞生长因子的促进作用在1 μg/L时达到峰值(P ≤ 0.05),两者的中和抗体均能抑制脂肪干细胞条件培养液对口腔黏膜成纤维细胞的促进作用;而血管内皮细胞生长因子对成纤维细胞增殖无明显的促进作用。实验结果提示脂肪干细胞条件培养液可促进口腔黏膜成纤维细胞的增殖,其中所含有的血小板源性生长因子和碱性成纤维细胞生长因子的促进作用非常明显,且具有浓度依赖性,因此应注意选择适宜的细胞因子浓度,从而有效地促进成纤维细胞增殖。

关键词: 干细胞, 脂肪干细胞, 多向诱导分化, 条件培养液, 口腔黏膜成纤维细胞, 血管内皮生长因子, 血小板源性生长因子, 碱性成纤维细胞生长因子, 蛋白芯片分析, 国家自然科学基金, 干细胞图片文章

Abstract:

BACKGROUND: Adipose stem cells have been confirmed to promote the repair of soft tissue after damage, and the action mechanism is possibly related to the paracrine of adipose stem cells, that is adipose stem cells secrete a variety of cytokines, which may promote the restoration of damaged cells. However, little report addressed the types of adipose stem cells secreted factors, contents of each factor, and role in soft tissue repair after damage, especially oral mucosa.
OBJECTIVE: To observe the influence of vascular endothelial growth factor, platelet-derived growth factor, and basic fibroblast growth factor in adipose stem cell-conditioned medium on the proliferation of oral mucosa fibroblasts.
METHODS: Protein microarray analysis was used to analyze the contents of vascular endothelial growth factor, platelet-derived growth factor, and basic fibroblast growth factor in adipose stem cell-conditioned medium. CCK8 analysis was used to analyze the effects of adipose stem cell-conditioned medium with different concentrations of vascular endothelial growth factor, platelet-derived growth factor, and basic fibroblast growth factor (0, 1, 10, 20, 50 and 100 μg/L) or the neutralizing antibody of the three kinds of cytokines on the proliferation of oral mucosa fibroblast on 1, 2, 3, 4 and 5 days.
RESULTS AND CONCLUSION: High contents of vascular endothelial growth factor, platelet-derived growth factor, and basic fibroblast growth factor were contained in adipose stem cell-conditioned medium (signal value > 300). Adipose stem cell-conditioned medium could promote the proliferation of oral mucosa fibroblasts, wherein, the promotion effects of platelet-derived growth factor and basic fibroblast growth factor were very significant, and the peak changes could be observed with variation of cytokines concentrations. The optimal concentrations of platelet-derived growth factor and basic fibroblast growth factor were 50 μg/L and 1 μg/L, respectively (P ≤ 0.05). The neutralizing antibody of platelet-derived growth factor and basic fibroblast growth factor inhibited the promotion effect of adipose stem cell-conditioned medium. On the other hand, vascular endothelial growth factor had no significant effect on the proliferation of oral mucosa fibroblasts. Adipose stem cell-conditioned medium can promote the proliferation of oral mucosa fibroblasts, platelet-derived growth factor and basic fibroblast growth factor in adipose stem cell-conditioned medium have obvious promotion effects, which are dependent on the cytokine concentrations. Therefore, we should pay attention to choose the optimal concentrations of cytokines, thereby effectively promoting the proliferation of fibroblasts.

Key words:  stem cells, adipose stem cells, multidirectional differentiation, conditioned medium, oral mucosa fibroblasts, vascular endothelial growth factor, platelet-derived growth factor, basic fibroblast growth factor, protein microarray analysis, National Natural Science Foundation of China, stem cell photographs-containing paper

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