中国组织工程研究 ›› 2018, Vol. 22 ›› Issue (25): 4065-4070.doi: 10.3969/j.issn.2095-4344.0941

• 干细胞培养与分化 stem cell culture and differentiation • 上一篇    下一篇

单根肌纤维法分离培养多裂肌卫星细胞及鉴定

刘 通1,于佳妮2,陈玉佩3,陈 欢4,邹德辉3,晏 珺3,卢宗孝3,刘 悦1,张 莉3,霍则军5   

  1. 1广东省第二中医院针灸康复科,广东省广州市 510095;2广东省中医院康复科,广东省广州市 510120;3北京中医药大学针灸推拿学院,北京市 100029;4江苏省人民医院针灸科,江苏省南京市 210000;5北京大学第三医院中医科,北京市 100191
  • 修回日期:2018-05-15 出版日期:2018-09-08 发布日期:2018-09-08
  • 通讯作者: 张莉,博士,主任医师、教授,北京中医药大学针灸推拿学院,北京市 100029
  • 作者简介:刘通,男,1987年生,山东省莱芜市人,汉族,2016年北京中医药大学毕业,博士,医师,主要从事针灸临床机理研究。
  • 基金资助:

    国家自然科学基金青年基金(81704179,81503641);国家自然科学基金面上项目(81574052)

Isolation and culture of multifidus satellite cells by single muscle fiber method

Liu Tong1, Yu Jia-ni2, Chen Yu-pei3, Chen Huan4, Zou De-hui3, Yan Jun3, Lu Zong-xiao3, Liu Yue1, Zhang Li3,  Huo Ze-jun5   

  1. 1Department of Acupuncture and Rehabilitation, Guangdong Second Hospital of Traditional Chinese Medicine, Guangzhou 510095, Guangdong Province, China; 2Department of Rehabilitation, Guangdong Hospital of Traditional Chinese Medicine, Guangzhou 510120, Guangdong Province, China; 3School of Acu-moxibustion and Tuina, Beijing University of Traditional Chinese Medicine, Beijing 100029, China; 4Department of Acupuncture and Moxibustion, Jiangsu Province Hospital, Nanjing 210000, Jiangsu Province, China; 5Department of Chinese Medicine, Peking University 3rd Hospital, Beijing 100191, China
  • Revised:2018-05-15 Online:2018-09-08 Published:2018-09-08
  • Contact: Zhang Li, M.D., Chief physician, Professor, School of Acu-moxibustion and Tuina, Beijing University of Traditional Chinese Medicine, Beijing 100029, China
  • About author:Liu Tong, M.D., Physician, Department of Acupuncture and Rehabilitation, Guangdong Second Hospital of Traditional Chinese Medicine, Guangzhou 510095, Guangdong Province, China
  • Supported by:

    the National Natural Science Foundation of China for the Youth, No. 81704179, 81503641; the General Project of the National Natural Science Foundation of China, No. 81574052

摘要:

文章快速阅读:

文题释义:
多裂肌:
多裂肌位于脊柱最内侧,是附着面积最大的椎旁肌,由多束组成,起于腰椎横突,斜行向上,止于上位椎体的棘突,对维持腰椎的稳定性极为重要。其中,浅层多裂肌主要控制脊柱的屈曲和定向活动,深层多裂肌主要控制节段间的运动。
肌卫星细胞:骨骼肌干细胞,是一系列未分化的单核细胞,位于肌原纤维基膜与基底膜之间,生理情况下,肌卫星细胞通常处于静止状态,一旦细胞的基膜遭到破坏,肌卫星细胞便开始活跃、增殖、分化、融合成为新生的肌纤维。

 

摘要
背景:
多裂肌的损伤、萎缩是临床各种腰背痛及功能障碍的主要来源之一,肌卫星细胞是肌肉干细胞,对肌肉的损伤修复起至关重要的作用。但目前尚缺少有关多裂肌卫星细胞分离培养方面的研究。
目的:采用单根肌纤维法分离大鼠多裂肌卫星细胞并进行鉴定。
方法:在体分离大鼠多裂肌,采用单根肌纤维法获得多裂肌卫星细胞,经反复差速贴壁法纯化,观察其形态变化并绘制细胞增殖曲线;以分化培养基进行诱导,观察其成肌分化情况;并采用免疫荧光法鉴定多裂肌卫星细胞标志蛋白Pax7、Myod、Desmin的表达。
结果与结论:①单根多裂肌纤维经培养72 h后,可见肌纤维周围有大量长梭形或纺锤形细胞贴壁;②采用差速贴壁法纯化后,可见原代细胞呈圆形,高折光性,重新接种后24-48 h可贴壁,其生长呈“S”型;③以分化培养基诱导可出现较大肌管;④免疫荧光鉴定可见Pax7、Myod在肌卫星细胞的细胞核中为阳性反应,Desmin在细胞质中为阳性反应;⑤结果表明,单根肌纤维法可成功分离大鼠多裂肌卫星细胞,可用于未来多裂肌再生修复方面的研究。

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: 0000-0002-5185-2188(刘通)

关键词: 单根肌纤维, 多裂肌, 肌卫星细胞, 分离, 培养, 鉴定, Pax7, Myod, Desmin, 损伤修复, 国家自然科学基金

Abstract:

BACKGROUND: Atrophy and damage of multifidus muscles mainly result in various low back pains and dysfunctions. Muscle satellite cells, which belong to muscle stem cells, play an important role for muscle regeneration after injury. However, little is reported on the isolation and culture of multifidus muscle up to now.
OBJECTIVE: To isolate and identify multifidus satellite cells of rats using single muscle fiber method.
METHODS: Multifidus muscles were isolated in vivo and multifidus satellite cells were obtained by single muscle fiber method. Then the cells were purified by repeated differential attachment. Morphological changes of the cells were observed and the proliferation curve was made thereafter. Moreover, myogenic differentiation of the isolated cells cultured in differentiation medium was analyzed and marker proteins of multifidus satellite cells (Pax7, Myod, Desmin) were characterized by immunofluorescence.
RESULTS AND CONCLUSION: A large number of fusiform or spindle cells were seen around the muscle fibers after 72 hours of culture. Round cells with high refraction were visible after being purified by repeated differential attachment, and the cells adhered after 24-48 hours of re-inoculation exhibited an “S” shaped growth curve. Large myotubes formed in the differentiation medium. Immunofluorescence findings showed that Pax7 and Myod were positively expressed in muscle satellite cell nuclei, while Desmin was positively expressed in the cytoplasm. These findings reveal that multifidus satellite cells can be successfully separated by single muscle fiber method, which can be used for regeneration of multifidus muscles in the future.

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: Satellite Cells, Skeletal Muscle, Muscle Fibers, Skeletal, Cell Separation, Tissue Engineering

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