中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (50): 8080-8087.doi: 10.3969/j.issn.2095-4344.2014.50.008

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

化疗药物对骨髓间充质干细胞的损伤作用

王金焕,王振玲,王晓芳,赵智刚   

  1. 天津医科大学肿瘤医院血液肿瘤科,国家肿瘤临床医学研究中心,天津市“肿瘤防治”重点实验室,天津市  300060
  • 收稿日期:2014-11-24 出版日期:2014-12-03 发布日期:2014-12-03
  • 通讯作者: 赵智刚,副主任医师,天津医科大学肿瘤医院血液肿瘤科,国家肿瘤临床医学研究中心,天津市“肿瘤防治”重点实验室,天津市 300060
  • 作者简介:王金焕,女,1989年生,山东省济宁市人,汉族,天津医科大学在读硕士,主要从事干细胞生物学研究。
  • 基金资助:

    国家自然科学基金项目(81172833)

Damage of chemotherapy agents to bone marrow mesenchymal stem cells

Wang Jin-huan, Wang Zhen-ling, Wang Xiao-fang, Zhao Zhi-gang   

  1. Department of Hemooncology, Tianjin University Cancer Institute & Hospital, Tianjin 300060, China
  • Received:2014-11-24 Online:2014-12-03 Published:2014-12-03
  • Contact: Zhao Zhi-gang, Associate chief physician, Department of Hemooncology, Tianjin University Cancer Institute & Hospital, Tianjin 300060, China
  • About author:Wang Jin-huan, Studying for master’s degree, Department of Hemooncology, Tianjin University Cancer Institute & Hospital, Tianjin 300060, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81172833

摘要:

背景:多种化疗药物在杀灭肿瘤细胞的同时会产生骨髓抑制的不良反应,不仅仅损伤造血细胞,也对骨髓间充质干细胞造成损伤,明确各种化疗药物对骨髓间充质干细胞的作用有利于合理选择、搭配化疗药物,实现高效、低毒的临床疗效。
目的:探讨不同化疗药物对骨髓间充质干细胞增殖、分化和支持造血能力的影响。
方法:获取正常成人骨髓间充质干细胞(n=8),用不同剂量化疗药物(环磷酰胺、马利兰、阿糖胞苷、柔红霉素、长春新碱、足叶乙甙、甲氨蝶呤、地塞米松)对骨髓间充质干细胞进行处理。检测化疗药物对骨髓间充质干细胞的增殖、凋亡作用及化疗药物撤除后骨髓间充质干细胞的恢复能力;体外诱导药物处理后骨髓间充质干细胞向脂肪细胞和骨细胞分化,通过油红O和Von Kossa染色鉴定;RT-PCR检测药物处理后骨髓间充质干细胞造血因子的表达;集落形成实验检测药物处理后骨髓间充质干细胞支持造血的功能。
结果与结论:两种剂量的长春新碱、柔红霉素、足叶乙甙、阿糖胞苷和地塞米松不同程度诱导骨髓间充质干细胞凋亡,并且抑制骨髓间充质干细胞的增殖,其中长春新碱和地塞米松的抑制作用可以逆转,而柔红霉素、足叶乙甙和阿糖胞苷对间充质干细胞的抑制作用持续存在。化疗药物处理后骨髓间充质干细胞仍具有多向分化能力,可以在体外分化为脂肪细胞和成骨细胞。化疗药物处理后骨髓间充质干细胞同正常细胞一样表达造血相关因子:干细胞因子、单核细胞集落刺激因子、白细胞介素6和粒细胞集落刺激因子。柔红霉素、长春新碱、足叶乙甙和阿糖胞苷处理后骨髓间充质干细胞支持造血能力明显下降。结果显示临床常用的一些化疗药物(长春新碱、柔红霉素、足叶乙甙、阿糖胞苷)可以影响骨髓间充质干细胞的增殖和支持造血能力,而不影响骨髓间充质干细胞表达造血相关因子和多向分化能力;部分化疗药物(环磷酰胺、甲氨蝶呤和马利兰)在使用浓度下不影响骨髓间充质干细胞的上述生物学特性。


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


全文链接:

关键词: 干细胞, 骨髓干细胞, 化疗药物, 增殖, 多向分化, 支持造血, 国家自然科学基金

Abstract:

BACKGROUND: Many chemotherapy drugs can produce adverse reactions, such as bone marrow suppression, when they kill tumor cells. It cannot only damage hematopoietic cells, but also damage bone marrow mesenchymal stem cells. To understand the role of various chemotherapy agents on bone marrow mesenchymal stem cells is conductive to rational choice of chemotherapy drugs as well as achievement of high-efficiency, low-toxicity, clinical efficacy.
OBJECTIVE: To investigate the changes in proliferation, differentiation and hematopoiesis support ability of bone marrow mesenchymal stem cells after exposure to chemotherapy agents.
METHODS: Mesenchymal stem cells were isolated from normal adult bone marrow and cultured in media with different chemotherapy agents (cyclophosphamide, busulfan, cytarabine, daunorubicin, vincristine, etoposide, methotrexate, dexamethasone). After exposure to chemotherapeutic agents, the changes of cell proliferation, 
apoptosis and recovery ability were detected. In vitro drug-treated bone marrow mesenchymal stem cells differentiated into adipocytes and osteocytes, identified by oil red O and Von Kossa staining. RT-PCR method was used to detect the expression of hematopoietic cytokines in bone marrow mesenchymal stem cells after drug treatment. Colony formation assay was used to detect the hematopoiesis support ability of bone marrow mesenchymal stem cells after drug treatment.
RESULTS AND CONCLUSION: Bone marrow mesenchymal stem cells were resistant to three agents: cyclophosphamide, busulfan and methotrexate, and other agents could induce apoptosis of bone marrow mesenchymal stem cells and reduce the proliferation of bone marrow mesenchymal stem cells. However, bone marrow mesenchymal stem cells recovered after withdrawal of vincristine and dexamethasone. Bone marrow mesenchymal stem cells, after exposure to chemotherapy agents, still had the ability of multi-directional differentiation, which could differentiate into adipocytes and osteoblasts in vitro. Moreover, chemotherapy agent-treated bone marrow mesenchymal stem cells could express hematopoietic cytokines (stem cell factor, monocyte colony stimulating factor, interleukin-6 and granulocyte colony-stimulating factor) and possessed hematopoietic supportive ability. But, after exposure to daunorubicin, vincristine, etoposide, and cytarabine, bone marrow mesenchymal stem cells showed limited proliferation capacity and impaired haematopoiesis support ability. These findings demonstrate that chemotherapy agents commonly used clinically (daunorubicin, vincristine, etoposide, and cytarabine) can impact the proliferation and hematopoiesis supportabilities of bone marrow mesenchymal stem cells, but these agents cannot affect the multi-directional differentiation ability and expression of hematopoietic cytokines of bone marrow mesenchymal stem cells. Moreover, several chemotherapy agents have no effects on biological characteristics of bone marrow mesenchymal stem cells, such as cyclophosphamide, busulfan and methotrexate.


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


全文链接:

Key words: bone marrow, mesenchymal stem cells, drug therapy, combination, transplantation conditioning

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