中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (50): 8037-8042.doi: 10.3969/j.issn.2095-4344.2015.50.001

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

骨髓瘤患者骨髓间充质干细胞可异常影响骨髓瘤细胞株的趋化功能

费小明1,李俊霞2,汤 郁1,雷 芳1,陆 化2   

  1. 1江苏大学附属医院血液科,江苏省镇江市 212001;2南京医科大学第一附属医院,江苏省南京市 210029
  • 收稿日期:2015-11-09 出版日期:2015-12-03 发布日期:2015-12-03
  • 通讯作者: 陆化,主任医师、教授,南京医科大学第一附属医院,江苏省南京市 210029
  • 作者简介:费小明,男,1973年生,江苏省镇江市人,汉族,2007年南京医科大学毕业,博士,副主任医师,主要从事骨髓瘤、骨髓微环境等研究。
  • 基金资助:

    国家自然科学基金(81202358,81571582);江苏省卫生计生科研项目(Z201512)

Bone marrow mesenchymal stem cells from multiple myeloma patients aberrantly affect chemotactic function of myeloma cell lines

Fei Xiao-ming1, Li Jun-xia2, Tang Yu1, Lei Fang1, Lu Hua2   

  1. 1Department of Hematology, Affiliated Hospital of Jiangsu University, Zhenjiang 212001, Jiangsu Province, China; 2First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
  • Received:2015-11-09 Online:2015-12-03 Published:2015-12-03
  • Contact: Lu Hua, Chief physician, Professor, First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
  • About author:Fei Xiao-ming, M.D., Associate chief physician, Department of Hematology, Affiliated Hospital of Jiangsu University, Zhenjiang 212001, Jiangsu Province, China
  • Supported by:

    Multiple Myeloma; Bone Marrow; Mesenchymal Stem Cells; Chemotaxis; Tissue Engineering
    Funding: the National Natural Science Foundation of China, No. 81202358, 81571582; Jiangsu Province Health Research Fund, No. Z201512

摘要:

背景:多发性骨髓瘤患者骨髓微环境中间充质干细胞有多种异常,但异常的间充质干细胞对骨髓瘤细胞的趋化功能影响目前仍不清楚。
目的:比较正常人与多发性骨髓瘤患者骨髓间充质干细胞在体外对骨髓瘤细胞株趋化迁移的影响。
方法:体外培养的正常人骨髓间充质干细胞或初诊骨髓瘤患者骨髓间充质干细胞,在有或无硼替佐米条件下,分别与骨髓瘤细胞株U266细胞直接共培养,比较U266细胞的Transwell迁移率、定量PCR检测mRNA的表达水平。同时还检测U266细胞对正常人骨髓间充质干细胞或骨髓瘤患者骨髓间充质干细胞培养液上清的Transwell迁移情况。
结果与结论:正常人骨髓间充质干细胞或骨髓瘤患者骨髓间充质干细胞与U266细胞直接共培养后,两组骨髓瘤细胞的趋化特性有区别,表现为骨髓瘤患者骨髓间充质干细胞组的U266细胞基础Transwell迁移率高、CCR1的表达水平高(P均 < 0.05)。硼替佐米处理U266细胞后并不能消除两组的的区别。然而,U266细胞对正常人骨髓间充质干细胞或骨髓瘤患者骨髓间充质干细胞培养液上清的Transwell迁移并没有明显区别。结果提示骨髓瘤患者骨髓间充质干细胞本身存在一些内在缺陷,在与骨髓瘤细胞株U266相互作用过程中,可以影响U266的体外趋化功能,并且这一影响主要是通过骨髓间充质干细胞与骨髓瘤细胞直接相互作用引起的。 

 

关键词: 干细胞, 骨髓干细胞, 多发性骨髓瘤, 骨髓间充质干细胞, 趋化, 穿孔, 硼替佐米, U266, CCR1, 共培养, 国家自然科学基金

Abstract:

BACKGROUND: Although bone marrow mesenchymal stem cells from multiple myeloma patients present a variety of abnormalities, it is unclear how these abnormal mesenchymal stem cells influence the chemotactic function of myeloma cell lines.
OBJECTIVE: To investigate the in vitro effects of bone marrow mesenchymal stem cells from normal donors versus multiple myeloma patients on the chemotactic capacity of myeloma cell lines.
METHODS: In vitro cultured bone marrow mesenchymal stem cells derived from either normal donors (N-MSCs group) or newly-diagnosed multiple myeloma patients (MN-MSCs group) were directly co-cultured with U266 cells, in the presence or absence of bortezomib; and then harvested U266 cells were assayed for Transwell migration 
and mRAN expression of chemotaxis-related genes. U266 Transwell migration to conditioned medium derived from either N-MSCs or MN-MSCs was also tested.
RESULTS AND CONCLUSION: After co-cultured with N-MSCs or MN-MSCs, U266 cells harvested from MN-MSCs group showed increased spontaneous Transwell migration and up-regulated CCR1 mRNA level than those from N-MSCs group (P < 0.05), whatever bortezomib was present or not. However, there was no evident difference between U266 cell Transwell migration to conditioned medium derived from either MM-MSCs group or N-MSCs group. Our study implies that there may be some intrinsic aberrance in bone marrow mesenchymal stem cells derived from multiple myeloma patients, which can modulate the chemotactic migration of myeloma cell lines when they directly interact with each other.
 

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