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中国临床药理学与治疗学 ›› 2004, Vol. 9 ›› Issue (11): 1231-1235.

• 研究原著 • 上一篇    下一篇

大鼠胰岛细胞原代培养模型的研究

张雅丽, 肖梅芳, 谭焕然   

  1. 北京大学医学部基础医学院药理学系,北京 100083
  • 收稿日期:2004-09-28 修回日期:2004-11-04 出版日期:2004-11-26 发布日期:2020-11-19
  • 通讯作者: 谭焕然,女,教授,研究方向:分子药理学。Tel: 010-82802004 E-mail:tanlab@sun.hjmu.edu.cn
  • 作者简介:张雅丽,女,博士,研究方向:分子药理学。
  • 基金资助:
    中国高技术研究发展计划(863计划)资助项目(No:l08080803和2002AA214201)

Research on primary culture model of pancreatic islets in rats

ZHANG Ya-Li, XIAO Mei-Fang, TAN Huan-Ran   

  1. Department of Pharmacology, School of Basic Medical Science, Peking University, Beijing 100083, China
  • Received:2004-09-28 Revised:2004-11-04 Online:2004-11-26 Published:2020-11-19

摘要: 目的: 建立一种客观的用于糖尿病和降血糖药物研究的大鼠胰岛细胞原代培养模型。方法: 大鼠胰腺经胶原酶消化后,利用细胞贴壁时间、紧密程度及存活时间的差异,获得较为纯净的胰岛细胞。通过胰岛素含量测定,葡萄糖刺激实验及移植实验评价该细胞的功能。结果: 分离得到的胰岛细胞成活率可达95 %以上;双硫腙染色表明大部分细胞团为含有β细胞的胰岛细胞团;经RPMI 1640培养的细胞,其上清及细胞内的胰岛素含量均高于DMEM组,且对葡萄糖刺激的敏感性优于DMEM组;培养的胰岛细胞移植入1型糖尿病模型小鼠体内,可使糖尿病小鼠的血糖降至正常。结论: 利用该方法得到的胰岛细胞活力和纯度均较高,体外培养后细胞功能正常,有望成为一种实用的降糖药研究的细胞模型。

关键词: 大鼠, 胰岛细胞, 原代培养, 细胞模型, 糖屎病

Abstract: AIM: To develop a simple, convenience, and inexpensive method on primary culture model of pan-creatic islets in rats for the study of anti-diabetic drugs. METHODS: The pancreases of SD rats were separated from the pancreatic duct with cold HankJ s solution and picked. Then the pancreases were cut into pieces and re-peatedly digested by collagenase at 37 ℃ for the short du-rations of the experiment. The isolated islets were identi-fied by dithizone staining and the viability was evaluated by trypan blue staining. Pancreatic islets were incubated in RPMI 1640 or DMEM for 14-16 h, then they were transferred to new culture plates with the same medium mentioned above. Determination of insulin content of su-pemate and cell lysate and the experiment of insulin se-cretion by stimulation of glucose and implantation of mice with STZ-induced diabetes were used for evaluated the function of islets. RESULTS: The viability of isolated pancreatic islets was more than 95% and the purity of cultured islets was about 85 %. The insulin synthesis, se-cretion and sensitivity of islets stimulate by glucose which were cultured in RPMI 1640 were higher than that in DMEM. The levels of blood glucose recovered to normal in type 1 diabetic mice after islets implantation. CON-CLUSION: The islets got in this study have higher purity and viability with the nonnal biological activity for about 7 days by this method and they can be used as a cell model for the study of diabetes in vitro.

Key words: rats, pancreatic islets, primary culture, cell model, diabetes

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