中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (5): 736-741.doi: 10.3969/j.issn.2095-4344.2017.05.014

• 干细胞移植 stem cell transplantation • 上一篇    下一篇

膝关节腔内注射Sox9转染骨髓间充质干细胞修复膝关节骨关节炎

卓群豪1,张伟娜1,李  舰2,王红卫3,郑  峰4,应彬彬1   

  1. 1宁波市第一医院口腔科,浙江宁波市  315010
    2宁波市妇女儿童医院口腔科,浙江省宁波市  315012
    3宁波市临床病理诊断中心,浙江省宁波市  315021
    4余姚市第二人民医院口腔科,浙江省余姚市  315400
  • 出版日期:2017-02-18 发布日期:2017-03-20
  • 通讯作者: 应彬彬,博士,宁波市第一医院口腔科,浙江宁波市 315010
  • 作者简介:卓群豪,男,1989年生,浙江省宁波市人,汉族,硕士,2015年中南大学毕业,医师。
  • 基金资助:

    国家青年科学基金项目(81200800);浙江省自然科学基金项目(LY12H14002)

Intra-articular injection of Sox9-transfected bone marrow mesenchymal stem cells for treatment of knee osteoarthritis

Zhuo Qun-hao1, Zhang Wei-na1, Li Jian2, Wang Hong-wei3, Zheng Feng4, Ying Bin-bin1   

  1. 1Department of Stomatology, First Hospital of Ningbo, Ningbo 315010, Zhejiang Province, China
    2Department of Stomatology, Women and Children Hospital of Ningbo, Ningbo 315012, Zhejiang Province, China
    3Ningbo Diagnostic Pathology Center, Ningbo 315021, Zhejiang Province, China
    4Department of Stomatology, Second People’s Hospital of Yuyao, Yuyao 315400, Zhejiang Province, China
  • Online:2017-02-18 Published:2017-03-20
  • Contact: Ying Bin-bin, M.D., Department of Stomatology, First Hospital of Ningbo, Ningbo 315010, Zhejiang Province, China
  • About author:Zhuo Qun-hao, Master, Physician, Department of Stomatology, First Hospital of Ningbo, Ningbo 315010, Zhejiang Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81200800; Zhejiang Provincial Natural Science Foundation of China, No. LY12H14002

摘要:

文章快速阅读:

文题释义:
基因转染技术的特点:
是指通过物理或生物方法将目的基因导入到真核细胞的基因组中,使其调控靶细胞向特定的方向表达。常用的方法分非病毒方法和病毒载体方法,非病毒方法有微粒子轰击法、脂质体转染法、电穿孔法等,病毒方法有反转录病毒法、慢病毒法、腺病毒法及腺相关病毒法。
Sox9:Sox9表达于软骨前体细胞及软骨细胞,体外实验表明Sox9对软骨形成起重要作用,与软骨细胞表型分子Col2a1,Col9a1,Col11a2和Aggrecn结合并激活。

 

摘要
背景:
相关研究认为,骨髓间充质干细胞具有良好的增殖及分化能力,Sox9转录因子在软骨形成及维持软骨细胞表型方面起关键作用。
目的:明确Sox9转染骨髓间充质干细胞对骨关节炎病变软骨的修复作用。
方法:体外以慢病毒为载体介导Sox9基因转染骨髓间充质干细胞。通过切断前交叉韧带建立小鼠膝关节骨关节炎模型,将小鼠随机分为生理盐水组、单纯骨髓间充质干细胞组及Sox9转染骨髓间充质干细胞组,分别将0.1 mL生理盐水、0.1 mL无转染骨髓间充质细胞生理盐水溶液、0.1 mL的Sox9转染骨髓间充质细胞生理盐水溶液注射入小鼠膝关节腔内。注射后4,8,12周后通过甲苯胺蓝及免疫组织化学染色检测病变关节软骨的修复情况。
结果与结论:①关节软骨病变:甲苯胺蓝染色显示,生理盐水组关节软骨病变较间充质干细胞组严重,且时间越长差别越明显,单纯骨髓间充质干细胞组软骨损伤有改善,但改善情况差于Sox9转染骨髓间充质干细胞组;②免疫组织化学染色显示,Sox9转染骨髓间充质干细胞组Ⅱ型胶原表达均强于其他2组,各组随时间阳性轻度减弱;③结果提示,Sox9转染小鼠骨髓间充质干细胞对小鼠膝关节炎病变软骨修复有促进作用。

 

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:
0000-0002-1328-9558(应彬彬)

关键词: 干细胞, 移植, 骨髓干细胞, 间充质干细胞, 骨关节炎, Sox9, 软骨, 小鼠, 膝关节, 慢病毒, 国家自然科学基金

Abstract:

BACKGROUND: Bone marrow mesenchymal stem cells are considered to have good proliferation and differentiation potentials. Sox9 is a transcription factor that is essential for chondrogenesis and has been termed as a “master regulator” of the chondrocyte phenotype.
OBJECTIVE: To study the therapeutic effects of Sox9-transfected bone marrow mesenchymal stem cells on knee osteoarthritis.
METHODS: The bone marrow mesenchymal stem cells were transfected with Lenti-Sox9-EGFP in vitro. The model of murine knee osteoarthritis was established by cutting off the anterior cruciate ligament. Thirty model mice were randomly divided into three groups, as normal saline group, bone mesenchymal stem cell group and Sox9-transfected bone mesenchymal stem cell group. 0.1 mL of normal saline, 0.1 mL of normal saline containing non-transfected bone marrow mesenchymal cells (non-transfected group), or 0.1 mL of normal saline containing Sox9-transfected bone marrow mesenchymal cells (Sox9-transfected group) was injected into the knee joint cavity of mice in the corresponding group, respectively. After 4, 8, 12 weeks, the repair of articular cartilage lesions was evaluated by toluidine blue and immunohistochemical staining.
RESULTS AND CONCLUSION: The lesions of articular cartilage were more serious in the normal saline group, compared with the other two groups, and the difference became more obvious over time. Damaged articular cartilage was improved in the non-transfected group, but the improvement was less than that in the Sox9-transfected group. Immunohistochemistry staining revealed that in the Sox9-transfected group, the positive type II collagen expression was stronger than that in the other two groups, but this positive expression was decreased over time in all the three groups. These results suggest that Sox9-transfected bone marrow mesenchymal stem cells promote the repair of damaged cartilage in mice with knee osteoarthritis.

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 Engineering, Osteoarthritis, Mesenchymal Stem Cells, Cartilage

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