中国组织工程研究 ›› 2019, Vol. 23 ›› Issue (13): 1995-2001.doi: 10.3969/j.issn.2095-4344.1688

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

全氟三丁胺/藻酸盐/生物玻璃复合材料对脂肪干细胞活性及成骨分化的影响

罗 凯,杨亚峰,马 腾,夏 冰,黄亮亮,黄景辉,罗卓荆   

  1. 空军军医大学西京医院骨科,陕西省西安市 710032
  • 修回日期:2019-01-09 出版日期:2019-05-08 发布日期:2019-05-08
  • 通讯作者: 罗卓荆,教授,主任医师,空军军医大学西京医院骨科,陕西省西安市 710032
  • 作者简介:罗凯,男,1987年生,山西省晋中市人,汉族,空军军医大学在读硕士,主要从事脊柱外科及生物材料的相关研究。
  • 基金资助:

    国家自然科学基金面上项目(81672148),项目负责人:黄景辉

Effects of perfluorotributylamine/alginate/bioglass biomaterials on viability and osteogenic differentiation of adipose-derived stem cells

Luo Kai, Yang Yafeng, Ma Teng, Xia Bing, Huang Liangliang, Huang Jinghui, Luo Zhuojing   

  1. Department of Orthopedics, Xijing Hospital, Air Force Medical University, Xi’an 710032, Shaanxi Province, China
  • Revised:2019-01-09 Online:2019-05-08 Published:2019-05-08
  • Contact: Luo Zhuojing, Professor, Chief physician, Department of Orthopedics, Xijing Hospital, Air Force Medical University, Xi’an 710032, Shaanxi Province, China
  • About author:Luo Kai, Master candidate, Department of Orthopedics, Xijing Hospital, Air Force Medical University, Xi’an 710032, Shaanxi Province, China
  • Supported by:

    the National Natural Science Foundation of China (General Program), No. 81672148 (to HJH)

摘要:

文章快速阅读:

文题释义:
携氧组织工程材料:
利用组织工程技术,将具有氧释放功能的材料复合于组织工程材料中,用于解决移植后材料内部缺氧导致的一系列问题。目前携氧材料被广泛应用于基础研究,具有氧释放功能的材料包括过氧化物、血红蛋白氧载体和全氟化合物等。
全氟碳化合物:是一种烃分子中的所有氢原子被氟原子取代而形成的有机化合物。由于全氟碳化合物的特殊结构,其具有高氧溶解性,而这一特性使其被广泛应用于生物医学领域。近年来,随着组织工程学的发展和人们对组织修复中氧作用的更深入理解,全氟碳化合物作为一种有效的携氧材料被应用在各种组织工程学研究中。全氟三丁胺是全氟碳化合物的一种。

 

摘要
背景:
缺氧环境导致骨组织工程材料体内应用受限,构建一种携氧骨组织工程材料有望解决缺氧问题。
目的:构建一种含有携氧材料全氟三丁胺的藻酸盐/生物玻璃骨组织工程材料,探讨其在体外缺氧条件下对脂肪干细胞增殖、黏附及成骨分化的影响。
方法:制备含有0%,5%,10%,20%全氟三丁胺的藻酸盐/生物玻璃材料,测定含有不同体积分数全氟三丁胺材料的氧释放曲线和细胞毒性。在缺氧条件下,将兔脂肪干细胞种植于含有不同体积分数全氟三丁胺的藻酸盐/生物玻璃材料中,比较脂肪干细胞的增殖情况,筛选全氟三丁胺的最优体积分数。将脂肪干细胞接种于含最优体积分数全氟三丁胺的藻酸盐/生物玻璃材料上,检测细胞在常氧及缺氧条件下的黏附能力、碱性磷酸酶活性及成骨相关基因的表达。
结果与结论:①在缺氧条件下,10%全氟三丁胺组细胞增殖显著高于5%全氟三丁胺组及空白对照组(P < 0.05);②在缺氧条件下,10%全氟三丁胺材料组细胞的黏附状态良好,黏附斑平均吸光度值显著高于缺氧对照组(P < 0.05);③在缺氧条件下成骨诱导培养7 d,10%全氟三丁胺组细胞的碱性磷酸酶活性及成骨相关基因表达显著高于缺氧对照组,差异有显著性意义(P < 0.05);④结果表明,含有10%全氟三丁胺的藻酸盐/生物玻璃骨组织工程材料,在缺氧条件下可促进兔脂肪干细胞增殖、黏附及成骨分化。


中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程
ORCID:
0000-0002-5749-0149(罗凯)

关键词: 脂肪干细胞, 生物玻璃, 全氟三丁胺, 藻酸盐, 缺氧, 细胞增殖, 细胞黏附, 成骨分化, 国家自然科学基金

Abstract:

BACKGROUND: Under hypoxia, the in vivo application of bone tissue engineering materials is limited. To solve the problem of hypoxia, an oxygen-carrying bone tissue engineering material is required.
OBJECTIVE: To prepare an alginate/bioactive glass scaffold with optimal perfluorotributylamine concentration and to explore the effect of the composite scaffold on in vitro proliferation and osteogenic differentiation of adipose-derived stem cells under hypoxia.
METHODS: Alginate/bioactive glass biomaterials containing 0% (control), 5%, 10%, and 20% perfluorotributylamine were prepared to measure oxygen-releasing curves and cytotoxicity. Under the condition of hypoxia, the rabbit adipose-derived stem cells were implanted into in alginate/bioactive glass materials containing different concentrations of perfluorotributylamine. The cellular proliferation in the four groups was compared, and the optimal perfluorotributylamine concentration in the scaffolds was selected. The adipose-derived stem cells were implanted onto the optimal scaffold, and cell adhesion, alkaline phosphatase activity and osteogenesis-related genes were detected under normoxia and hypoxia.
RESULTS AND CONCLUSION: (1) Under hypoxic conditions, the cell proliferation in the 10% perfluorotributylamine group was significantly higher than that in the 5% perfluorotributylamine group and the control group (P < 0.05). (2) Under hypoxic conditions, the cells in the 10% perfluorotributylamine group adhered well, and the mean absorbance value of adherence spots was significantly higher than that in the control group (P < 0.05). (3) After 7 days of osteogenic induction under hypoxia, the activity of alkaline phosphatase and the expression of osteogenesis-related genes in the 10% perfluorotributylamine group were significantly higher than those in the control group (P < 0.05). To conclude, the alginate/bioactive glass bone tissue-engineered scaffold with 10% perfluorotributylamine can promote the proliferation, adhesion and osteogenic differentiation of rabbit adipose-derived stem cells under hypoxia.


中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程

Key words: Biocompatible Materials, Anoxia, Adipose Tissue, Stem Cells, Cell Proliferation, Cell Adhesion, Tissue Engineering

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