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Effect of thrombopoietin on the proliferation of bone marrow stem cells
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF ORGAN TRANSPLANTATION
- Issue:
- 2
- DOI:
- 10.3760/cma.j.issn.0254-1785.2008.02.005
- Key Word:
- 血小板生成素;间质干细胞;细胞周期;细胞增殖
Abstract： 目的 探讨促血小板生成素(TPO)对小鼠骨髓有核细胞(BMNC)的细胞周期及骨髓干细胞增殖的影响.方法 将昆明小鼠随机分为实验组与对照组,每组15只.实验组腹腔注射TPO50 μg·kg-1·d-1 ,连用5 d;对照组腹腔注射生理盐水0.1 ml·g-1·d-1.每组分别于最后1次注射后6 h、12 h及168 h收集BMNC,检测BMNC的细胞周期及表达CD34+的抗原绝对数;计数BMNC,以1×106细胞/cm2接种培养并计数原代成纤维样细胞集落形成单位(CFU-F).结果 应用TPO后的细胞周期显示,实验组在6 h和12 h取材BMNC的G0/G1期细胞百分率较对照组低12%～8%(P＜0.05),而S+G2期增高12%～8%(P＜0.05);实验组BMNC表达CD34+的抗原绝对数较对照组明显增加1～2倍(P＜0.05);实验组所获得CFU-F集落数比对照组增加3～9倍(P＜0.01).结论 TPO促进CD34+细胞增加的同时,还可促进小鼠BMNC进入细胞周期,促进CFU-F集落数增多,即促进骨髓间充质干细胞(MSC)增殖,有利于改善造血干细胞移植(HSCT)的效果.
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