中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (6): 957-962.doi: 10.3969/j.issn.2095-4344.2013.06.002

• 骨髓干细胞 bone marrow stem cells • 上一篇    下一篇

利用人骨髓基质干细胞构建组织工程心脏瓣膜的体外实验

康 凯1,曲 辉2,汤继权3,贾智博1,张宇南1,张春风1,吴 华1,李仁科1,蒋树林1   

  1. 1哈尔滨医科大学附属二院心血管外科,“心肌缺血机理与诊疗技术”省部共建教育部重点实验室,黑龙江省哈尔滨市 150086
    2哈尔滨医科大学附属二院儿内科,黑龙江省哈尔滨市 150086
    3鸡西市人民医院胸心外科,黑龙江省鸡西市 158100
  • 收稿日期:2012-04-09 修回日期:2012-06-19 出版日期:2013-02-05 发布日期:2013-02-05
  • 通讯作者: 曲辉,博士,主治医师,哈尔滨医科大学附属二院儿内科,黑龙江省哈尔滨市 150086 fdquhui@163.com
  • 作者简介:康凯☆,男,1975年生,黑龙江省大庆市人,汉族,2012年哈尔滨医科大学毕业,博士,主治医师,主要从事组织工程心脏瓣膜及心肌补片的研究。 kangkai1975@sina.com

Reconstruction of tissue-engineered heart valve with human bone marrow stromal stem cells in vitro

Kang Kai1, Qu Hui2, Tang Ji-quan3, Jia Zhi-bo1, Zhang Yu-nan1, Zhang Chun-feng1, Wu Hua1, Li Ren-ke1, Jiang Shu-lin1   

  1. 1 Department of Cardiovascular Surgery, Second Affiliated Hospital of Harbin Medical University, Key Laboratory of “Myocardial Ischemia Mechanism and Treatment” of Ministry of Education, Harbin 150086, Heilongjiang Province, China
    2 Department of Pediatrics, Second Affiliated Hospital of Harbin Medical University, Harbin 150086, Heilongjiang Province, China
    3 Department of Cardio-thoracic Surgery, Jixi People’s Hospital, Jixi 158100, Heilongjiang Province, China
  • Received:2012-04-09 Revised:2012-06-19 Online:2013-02-05 Published:2013-02-05
  • Contact: Qu Hui, Doctor, Attending physician, Department of Pediatrics, Second Affiliated Hospital of Harbin Medical University, Harbin 150086, Heilongjiang Province, China fdquhui@163.com
  • About author:Kang Kai☆, Doctor, Attending physician, Department of Cardiovascular Surgery, Second Affiliated Hospital of Harbin Medical University, Key Laboratory of “Myocardial Ischemia Mechanism and Treatment” of Ministry of Education, Harbin 150086, Heilongjiang Province, China kangkai1975@sina.com

关键词: 干细胞, 骨髓干细胞, 骨髓来源干细胞, 脱细胞猪主动脉瓣支架, 脱细胞, 主动脉瓣, 猪, 支架, 骨髓基质干细胞, 人, 心脏瓣膜, 组织工程, 再生医学, 省级基金\干细胞图片文章

Abstract:

BACKGROUND: Nowadays, mechanical or biological valve recipients used in the clinic are still at the risk of infection, hemorrhage, thrombosis and reoperation owing to valve stenosis. Tissue-engineered heart valve with biological activity can overcome the disadvantages above. While, the optimal choice of scaffolds and seeding cells remains disputable.
OBJECTIVE: To explore the feasibility to construct tissue-engineered heart valve with acellularized porcine aortic valve scaffold and human bone marrow stromal stem cells in vitro.
METHODS: The porcine aortic valves were decellularized with the detergent and enzymatic extraction process to remove the cellular components. Human bone marrow stromal stem cells were aspirated from sternum of the patients with simple congenital heart malformation, and then the cells were seeded on the acellularized porcine aortic valve scaffold and cultured for 5 days.
RESULTS AND CONCLUSION: Flow cytometry identified that the characteristics of surface antigen of the inoculated seed cells were in line with those of human bone marrow stromal stem cells. Light microscopy and electron microscopy confirmed that the cellular components in the porcine aortic valves could be removed to obtain the complete acellular fiber mesh stent. There was no significant difference in biomechanical property between before and after acellularization. The human bone marrow stromal stem cells implanted on the acellularized porcine aortic valve scaffold could form a continuous cell layer on the surfaces of the scaffold. The inoculated bone marrow stromal stem cells could be differentiated into fibroblasts. The implantation of human bone marrow stromal stem cells on the acellularized porcine aortic valve scaffold can construct the tissue-engineered heart valve.

Key words: stem cells, bone marrow-derived stem cells, acellularized porcine aortic valve scaffold, acellular, aortic valve, porcine, scaffold, bone marrow stromal stem cells, human, heart valve, tissue engineering, regenerative medicine, provincial grants-supported paper, stem cell photographs-containing paper

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