中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (28): 4493-4497.doi: 10.3969/j.issn.2095-4344.2015.28.012

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

脂肪干细胞在人工骨支架诱导下的成骨效应

苏 鹏1,张巍巍1,余华伟1,杨 函2   

  1. 1内江市第二人民医院骨科,四川省内江市 641000;
    2泸州医学院附属医院骨科,四川省泸州市 646000
  • 出版日期:2015-07-02 发布日期:2015-07-02
  • 作者简介:苏鹏,男,1977年生,四川省内江市人,1998年泸州医学院毕业,主治医师,主要进行脊柱退行性病变以及关节疾病的诊治。
  • 基金资助:

    泸州医学院自然科学基金(2013ZRQN071)

Osteogenesis of adipose stem cells on artificial bone scaffold 

Su Peng1, Zhang Wei-wei1, Yu Hua-wei1, Yang Han2   

  1. 1Department of Orthopedics, Second People’s Hospital of Neijiang, Neijiang 641000, Sichuan Province, China; 
    2
    Department of Orthopedics, First Affiliated Hospital of Sichuan Medical University, Luzhou 646000, Sichuan Province, China
  • Online:2015-07-02 Published:2015-07-02
  • About author:Su Peng, Attending physician, Department of Orthopedics, Second People’s Hospital of Neijiang, Neijiang 641000, Sichuan Province, China
  • Supported by:

    the Natural Science Foundation of Sichuan Medical University, No. 2013ZRQN071

摘要:

背景:种子细胞的来源不足是限制组织重建及再生医学发展的重要因素。

目的:探索脂肪干细胞与不同种类人工骨混合后的诱导成骨效果。
方法:从接受美容手术的女性志愿者腹部皮下抽取液状脂肪,分离脂肪干细胞。取第4代人脂肪间充质干细胞分为单纯成骨诱导液组、成骨诱导液+羟基磷灰石组、成骨诱导液+可吸收骨材料组、成骨诱导液+重组异种骨组。后3组分别加入羟基磷灰石生物陶瓷、可吸收骨材料和重组异种骨,且每组依据干预物浓度的差异分为3,10,20 g/L 3个亚组,每3 d换液1次.共进行12 d的诱导。
结果与结论:成骨诱导液+羟基磷灰石组的洗脱液钙浓度显著高于单纯成骨诱导液组(P < 0.05);低浓度条件下成骨诱导液+可吸收骨材料组洗脱液钙浓度明显高于单纯成骨诱导液组(P < 0.05),但高浓度成骨诱导液+可吸收骨材料组洗脱液钙浓度与单纯成骨诱导液组差异无显著性意义(P > 0.05);成骨诱导液+重组异种骨组洗脱液钙浓度显著低于单纯成骨诱导液组(P < 0.05)。表明不同类型人工骨支架可以影响脂肪干细胞诱导成骨效果,其中以羟基磷灰石为支架可以获得较好的诱导成骨效果。

关键词: 干细胞, 脂肪干细胞, 成骨效果, 种子细胞, 骨生物材料支架, 人工骨, 羟基磷灰石, 可吸收骨材料, 重组异种骨

Abstract:

BACKGROUND: Insufficient source of seed cells is the important factor to restrict the tissue reconstruction and the development of regenerative medicine.

OBJECTIVE: To explore the osteogenesis of adipose stem cells cultured with different kinds of artificial bones.
METHODS: Adipose tissue was extracted from female volunteers undergoing cosmetic surgery to isolate adipose stem cells. Passage 4 adipose-derived mesenchymal stem cells were selected and divided into osteogenic induction group, osteogenic induction+hydroxyapatite group, osteogenic induction+absorbable bone group and osteogenic induction+recombinant bone xenograft group. The latter three groups were subdivided into 3, 10,
20 g/L subgroups, respectively. Culture medium was exchanged every 3 days, totally for 12 days.
RESULTS AND CONCLUSION: Compared with the osteogenic induction group, the calcium concentration in the elution liquid was significantly higher in the osteogenic induction+hydroxyapatite group and low-concentration osteogenic induction+absorbable bone group (both P < 0.05), but no difference was found between the osteogenic induction group and high-concentration osteogenic induction+absorbable bone group (P < 0.05). In addition, the calcium concentration in the elution liquid was significantly lower in the osteogenic induction+ recombinant bone xenograft group than the osteogenic induction (P < 0.05). Therefore, different artificial bone scaffolds can influence the osteogenic effect of adipose stem cells, and among them, hydroxyapatite has a better effect on the osteogenic induction of adipose stem cells.

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: Tissue Scaffolds, Subcutaneous Fat, Stem Cells, Hydroxyapatites

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