中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (14): 2066-2072.doi: 10.3969/j.issn.2095-4344.2016.14.013

• 干细胞移植 stem cell transplantation • 上一篇    下一篇

CD133+细胞联合人脐血干细胞在心力衰竭小鼠中的作用

后 梅1,张红星2,叶 青3,张 勇4   

  1. 昆明医科大学第一附属医院,1干疗科,2肿瘤内科,3心内科,4肿瘤放疗科,云南省昆明市 650032  
  • 收稿日期:2016-02-16 出版日期:2016-04-01 发布日期:2016-04-01
  • 通讯作者: 张红星,副主任医师,昆明医科大学第一附属医院干疗科,云南省昆明市 650032
  • 作者简介:后梅,女,1969年生,主治医师,主要从事老年心血管病方面的研究。
  • 基金资助:

    国家自然科学基金项目(81560462)

CD133+ cells in combination with human umbilical cord stem cells in mouse heart failure

Hou Mei1, Zhang Hong-xing2, Ye Qing3, Zhang Yong4   

  1. 1Department of Cadre Treatment, 2Department of Medical Oncology, 3Department of Cardiology, 4Department of Tumor Radiotherapy, First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan Province, China
  • Received:2016-02-16 Online:2016-04-01 Published:2016-04-01
  • Contact: Zhang Hong-xing, Associate chief physician, Department of Medical Oncology, First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan Province, China
  • About author:Hou Mei, Attending physician, Department of Cadre Treatment, First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81560462

摘要:

文章快速阅读:

 

文题释义:
CD133+:可被3种CD133抗体识别:克隆AC133、293C3和AC141。AC133直接与CD133/1糖基化抗原表位结合,可用于从外周血、骨髓、脐血及其它组织中分析和分选CD133+细胞。
脐血间充质干细胞:是以人脐血血清为主体的培养体系的脐血间充质干细胞培养扩增的方法,该细胞分离培养过程中贴壁细胞能表达CD44和CD29,而CD106表达相对较大,并不会表达造血细胞表型CD14、CD34、CD45和内皮细胞表型CD31,也不表达HLA-DR,细胞倍增时间为30 h,细胞周期分析表明,G0-G1期和G2-M期所占比例分别为78.84%和11.16%。
 
背景:目前常规方法治疗心力衰竭效果不佳。
目的:研究CD133+细胞联合人脐血干细胞在心力衰竭小鼠中的效果,为心力衰竭治疗提供依据。
方法:采集足月妊娠顺产婴儿脐血,并利用淋巴细胞分离液法提取CD133+细胞和人脐血干细胞。将20只Balb/C裸小鼠随机等分为单个核细胞组和CD133+细胞联合人脐血干细胞组。2组小鼠均建立心力衰竭模型。单个核细胞组经尾注射单个核细胞治疗,CD133+细胞联合人脐血干细胞组经尾注射CD133+细胞联合人脐血干细胞治疗。
结果与结论:①治疗后14 d时:CD133+细胞联合人脐血干细胞组小鼠体质量及肝脏、心脏和肺脏质量显著大于单个核细胞组(P < 0.05);②治疗30 d后:CD133+细胞联合人脐血干细胞组小鼠心肌排列整齐,而单个核细胞组小鼠的心肌排列紊乱,CD133+细胞联合人脐血干细胞组小鼠心肌胶原纤维平均面积显著小于单个核细胞组(P < 0.05),血清基质金属蛋白酶9浓度显著低于单个核细胞组(P < 0.05),Masson染色结果显示,CD133+细胞联合人脐血干细胞组小鼠蓝色胶原纤维较少,排列相对整齐;单个核细胞组小鼠心内膜出现不同程度胶原纤维增多,排列紊乱;③结果提示:CD133+细胞联合人脐血干细胞治疗小鼠心力衰竭效果理想,具有较高的临床应用价值。

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
ORCID: 0000-0002-3150-5226(后梅)

关键词: 干细胞, 移植, 人脐血干细胞, CD133+细胞, 心力衰竭, 协同作用, 治疗效果, 单个核细胞, 血清基质金属蛋白酶9, Masson染色, 国家自然科学基金

Abstract:

BACKGROUND: Currently, conventional treatment methods for heart failure are all ineffective.
OBJECTIVE: To explore the combined effects of human umbilical cord stem cells and CD133+ cells in mice with heart failure, providing a new insight into the treatment of heart failure.
METHODS: Full-term newborn umbilical cord from vaginal delivery was collected to isolate CD133+ cells and human umbilical cord stem cells using lymphocyte separation medium method. Twenty Balb/C nude mice were randomly subjected to mononuclear cell injection (mononuclear cell group) or injection of CD133+ cells combined with human umbilical cord stem cells (combined group) via the tail vein after establishing heart failure models.
RESULTS AND CONCLUSION: Fourteen days after injection, the body weight and liver, heart and lung mass of mice were significantly larger in the combined group than the mononuclear cell group (P < 0.05). After 30 days, myocardial cells arranged regularly in the combined group, but disorderly in the mononuclear cell group; compared with the mononuclear cell group, the average area of myocardial collagen fibers was significantly decreased in the combined group (P < 0.05), and the level of serum matrix metalloproteinase-9 was also significantly lower in the combined group (P < 0.05). Masson staining showed that blue-stained collagen fibers in the combined group were less but arranged neatly; however, in the mononuclear cell group, the number of collagen fibers that arranged irregularly was increased to different extents. To conclude, the combined use of CD133+ cells and human umbilical cord stem cells has desired outcomes in the treatment of heart failure in mice, indicating a higher clinical value.
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

Key words: Heart Failure, Drug Therapy, Myocytes, Cardiac, Tissue Engineering