中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (24): 4414-4420.doi: 10.3969/j.issn.2095-4344.2013.24.007

• 心脏组织构建 cardiac tissue construction • 上一篇    下一篇

新生大鼠心肌细胞和心肌成纤维细胞的同时分离

施雨露1,李晓辕2,曹美娜3,于姝媛3,王 苹3   

  1. 1吉林大学白求恩医学院病原免疫细胞遗传实验中心,吉林省长春市  130021
    2吉林大学第一医院呼吸科,吉林省长春市  130021
    3吉林大学第一医院耳鼻咽喉-头颈外科,吉林省长春市  130021
  • 收稿日期:2012-10-21 修回日期:2012-12-01 出版日期:2013-06-11 发布日期:2013-06-11
  • 通讯作者: 王苹,博士,副教授,吉林大学第一医院耳鼻咽喉-头颈外科,吉林省长春市 130021 wang_ping@jlu.edu.cn
  • 作者简介:施雨露,1963年生,江苏省启东市人,汉族,1990年白求恩医科大学大学毕业,主管技师,主要从事免疫和遗传学方面的研究。 shiyl@jlu.edu.cn

Simultaneous isolation of myocardial cells and cardiac fibroblasts from neonatal rats

Shi Yu-lu1, Li Xiao-yuan2, Cao Mei-na3, Yu Shu-yuan3, Wang Ping3   

  1. 1 Experimental Center of Pathogenobiology-Immunology-Cell Biology and Genetics, Bethune Medical College, Jilin University, Changchun  130021, Jilin Province, China
    2 Department of Respiratory Medicine, First Hospital, Jilin University, Changchun  130021, Jilin Province, China
    3 Department of Otolaryngology and Head & Neck Surgery, First Hospital, Jilin University, Changchun  130021, Jilin Province, China
  • Received:2012-10-21 Revised:2012-12-01 Online:2013-06-11 Published:2013-06-11
  • Contact: Wang Ping, M.D., Associate professor, Department of Otolaryngology and Head & Neck Surgery, First Hospital, Jilin University, Changchun 130021, Jilin Province, China wang_ping@jlu.edu.cn
  • About author:Shi Yu-lu, Technician-in-charge, Experimental Center of Pathogenobiology-Immunology-Cell Biology and Genetics, Bethune Medical College, Jilin University, Changchun 130021, Jilin Province, China shiyl@jlu.edu.cn

摘要:

背景:利用心肌组织中不同细胞的黏附特性差异,通过优化心肌细胞的培养条件,一次分离同时获得心肌和心肌成纤维细胞。
目的:探讨新生大鼠心肌和心肌成纤维细胞同时分离的有效方法。
方法:采用低浓度胰蛋白酶冷消化结合胶原酶复合消化,差速分离心肌和心肌成纤维细胞。通过使用不同种类的血清改良心肌细胞培养条件,免疫荧光鉴定心肌细胞和心肌成纤维细胞纯度。
结果与结论:心肌培养48 h时Troponin T阳性细胞率为89.3%。第2代的心肌成纤维细胞培养波形蛋白阳性细胞率为93.6%。含马血清的培养基组心肌细胞阳性率明显高于牛血清培养组(P < 0.05)。实验应用的新生大鼠心肌细胞分离培养方法,心肌细胞和心肌成纤维细胞纯度高、活性好,且能同时获得心肌细胞和心肌成纤维细胞。

关键词: 组织构建, 心脏组织构建, 心肌细胞, 心肌成纤维细胞, 胰蛋白酶, 胶原酶, 复合消化, 细胞培养, 马血清, 牛血清, 增殖, 分化

Abstract:

BACKGROUND: Myocardial cells and cardiac fibroblasts are simultaneously isolated through optimizing the culture conditions of myocardial cells, by use of the variations of adhesion properties of myocardial cells.
OBJECTIVE: To explore the co-separation method for myocardial cells and cardiac fibroblasts in newborn rats.
METHODS: Myocardial tissue in newborn rats was digested with low concentration trypsin at cold conditions and with collagenase II at 37 ℃. The myocardial cells and cardiac fibroblasts were isolated with differential centrifugation method, and myocardial cell culture conditions were improved using different kinds of serum. Immunofluorescence staining was used to evaluate the purity of myocardial cells and cardiac fibroblasts.
RESULTS AND CONCLUSION: The myocardial Troponin T positive cell rate was 89.3% at culture 48 hours, and myocardial fibroblast vimentin positive cell rate was 93.6% at passage 2. The percentage of positive myocardial cells cultured with medium containing horse serum was obviously higher than that with bovine serum culture (P < 0.05). This isolation method of rat myocardial cells can gain myocardial cells and cardiac fibroblasts at the same time, with high purity and good activity.

Key words: tissue construction, heart tissue construction, myocardial cells, cardiac fibroblasts, trypsin, collagenase, combined digestion, cell culture, horse serum, bovine serum, proliferation, differentiation

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