中国组织工程研究 ›› 2018, Vol. 22 ›› Issue (17): 2699-2704.doi: 10.3969/j.issn.2095-4344.0514

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

关节软骨损伤大鼠关节腔内移植骨髓间充质干细胞的迁移

孙百川1,2,3,王守锋1,刘雪剑1,2,3,张凯红2,3,陈 鹏2,3,黄绍代2,3,鲁长风2,3,王 冲2,3,余 文2,3,王 玉2,3,张增增1,2,3,周成福1,彭 江2,3   

  1. 1佳木斯大学附属第一医院,黑龙江省佳木斯市 154003;2中国人民解放军总医院骨科研究所,北京市 100853;3骨科再生医学北京市重点实验室,北京市 100853
  • 修回日期:2018-02-09 出版日期:2018-06-18 发布日期:2018-06-18
  • 通讯作者: 周成福,教授,佳木斯大学附属第一医院,黑龙江省佳木斯市 154003; 并列通讯作者:彭江,博士,教授,中国人民解放军总医院骨科研究所,北京市 100853;骨科再生医学北京市重点实验室,北京市 100853
  • 作者简介:孙百川,男,1991年生,山东省聊城市人,汉族,佳木斯大学在读硕士,主要从事周围神经损伤和修复,特别是干细胞归巢机制的研究。
  • 基金资助:

    国家重点研发计划(2016YFC1102104-1);国家自然科学基金(81572148);北京市科技专项(Z161100005016059);黑龙江省教育厅科学技术研究项目(12531717)

Intra-articular migration of transplanted bone marrow mesenchymal stem cells in rats with articular cartilage injury

Sun Bai-chuan1, 2, 3, Wang Shou-feng1, Liu Xue-jian1, 2, 3, Zhang Kai-hong2, 3, Chen Peng2, 3, Huang Shao-dai2, 3, Lu Chang-feng2, 3,       Wang Chong2, 3, Yu Wen2, 3, Wang Yu2, 3, Zhang Zeng-zeng1, 2, 3, Zhou Cheng-fu1, Peng Jiang2, 3   

  1. 1First Affiliated Hospital of Jiamusi University, Jiamusi 154003, Heilongjiang Province, China; 2Institute of Orthopedics, Chinese PLA General Hospital, Beijing 100853, China; 3Beijing Key Laboratory of Regenerative Medicine in Orthopaedics, Beijing 100853, China
  • Revised:2018-02-09 Online:2018-06-18 Published:2018-06-18
  • Contact: Zhou Cheng-fu, Professor, First Affiliated Hospital of Jiamusi University, Jiamusi 154003, Heilongjiang Province, China; Peng Jiang, M.D., Professor, Institute of Orthopedics, Chinese PLA General Hospital, Beijing 100853, China; Beijing Key Laboratory of Regenerative Medicine in Orthopaedics, Beijing 100853, China
  • About author:Sun Bai-chuan, Master candidate, First Affiliated Hospital of Jiamusi University, Jiamusi 154003, Heilongjiang Province, China; Institute of Orthopedics, Chinese PLA General Hospital, Beijing 100853, China; Beijing Key Laboratory of Regenerative Medicine in Orthopaedics, Beijing 100853, China
  • Supported by:

    National Key Research and Development Program of China, No. 2016YFC1102104-1; National Natural Science Foundation of China, No. 81572148; Beijing Municipal Science and Technology Project, No. Z161100005016059; Science and Technology Research Project of Heilongjiang Provincial Education Department, No. 12531717

摘要:

文章快速阅读:

文题释义:
PKH26:
是一种亲脂性荧光染料,专利膜标记技术,稳定的与细胞膜脂质区结合并发出红色荧光,染色方式依赖于细胞与膜的类型,主要用于细胞体外标记、体外细胞增殖研究及体内外细胞示踪研究,其在551 nm波长处可被激发红色荧光。随着细胞分裂,标记物也随之等份的分配给子细胞。
共聚焦显微镜:普通荧光显微镜分辨率较低,在观察荧光染料时噪点较多,会对实验结果产生干扰,但使用共聚焦显微镜得到的共聚焦图像则分辨率高,图像清晰,噪点较少,结合明场图像可清晰显示出细胞的迁移位置,达到实验目的。

 

摘要
背景:
应用间充质干细胞治疗软骨损伤已成为研究热点,但是间充质干细胞在体内的分布情况、是否发挥作用以及如何发挥作用还需进一步研究。
目的:观察膝关节骨软骨缺损局部植入骨髓间充质干细胞的迁移情况。
方法:30只SD大鼠随机分为2组,每组15只。假手术组单纯切开关节囊暴露股骨髁滑车,不行骨软骨缺损造模,缝合后关节腔内注射PKH26 标记的骨髓间充质干细胞;骨软骨缺损组构建大鼠股骨滑车直径1 mm,深1 mm的骨软骨缺损模型,术后向骨软骨缺损处注射PKH26标记的骨髓间充质干细胞。注射后1,3,7 d获取右股骨髁缺损区标本,行冰冻切片,DAPI染色后,在激光共聚焦显微镜下观察骨髓间充质干细胞的迁移情况。
结果与结论:①假手术组大鼠关节腔内未见到细胞迁移到软骨下骨;②细胞注射第1,3天,骨软骨缺损组软骨下骨区可见骨髓间充质干细胞,第7天时在骨髓腔内可见间充质干细胞;③以上结果显示,当大鼠股骨髁软骨层未破坏时,其完整的功能结构能够阻止关节腔内的骨髓间充质干细胞向软骨下骨及骨髓腔内迁移;若股骨髁骨软骨层缺损,随着时间的进展骨髓间充质干细胞逐渐向软骨下骨及骨髓腔内迁移。

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:
0000-0003-2263-4218(孙百川)

关键词: 骨髓间充质干细胞, 迁移, 骨软骨缺损, PKH26, 干细胞, 国家自然科学基金

Abstract:

BACKGROUND: The application of mesenchymal stem cells (MSCs) in the treatment of cartilage damage has become a hot spot of research. Further studies on the distribution of MSCs in the body after injection and on the underlying mechanism of action are needed.
OBJECTIVE: To observe the migration of bone marrow mesenchymal stem cells (BMSCs) after injection into the region of osteochondral defect.
METHODS: Thirty Sprague-Dawley rats were randomized into two groups (n=15 per group). In the control group, the femoral tochlear was exposed but an osteochondral defect was not made; and after the suture, PKH26-labeled BMSCs were directly injected into the articular cavity of rats. In the experimental group, a cartilage defect of 1 mm in diameter and 1 mm in depth was made in the rat femoral trochlea, and 5×106 PKH26-labeled BMSCs were injected into the defect after operation. At 1, 3 and 7 days after injection, the femoral condyle was taken to make frozen sections followed by DAPI staining. The distribution of BMSCs was observed under laser scanning confocal microscope.
RESULTS AND CONCLUSION: In the control group, PKH26-labeled BMSCs were not transferred to the subchondral bone. In the experimental group, BMSCs were detected in the subchondral bone area at 1, 3 days after injection of PKH26-BMSCs in the bone cartilage defect area, and the BMSCs were also found in the bone marrow cavity at 7 days after injection. In conclusion, BMSCs in the articular cavity cannot migrate into the subchondral bone and bone marrow cavity unless the cartilage of the femoral condyle is damaged.

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: Osteochondrosis, Bone Marrow, Mesenchymal Stem Cell Transplantation, Cell Migration Assays, Tissue Engineering

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