中国组织工程研究 ›› 2018, Vol. 22 ›› Issue (29): 4698-4705.doi: 10.3969/j.issn.2095-4344.0629

• 干细胞综述 stem cell review • 上一篇    下一篇

整合素和E-钙黏素在诱导多能干细胞重编程及干性维持中的作用

胡若文,陈晓芳   

  1. 北京航空航天大学生物与医学工程学院生物力学与力生物学教育部重点实验室,北京市 100191
  • 修回日期:2018-05-24 出版日期:2018-10-18 发布日期:2018-10-18
  • 通讯作者: 陈晓芳,博士,副教授,硕士生导师,北京航空航天大学生物与医学工程学院生物力学与力生物学教育部重点实验室,北京市 100191
  • 作者简介:胡若文,女,1993年生,北京市人,汉族,北京航空航天大学生物与医学工程学院在读硕士,主要从事细胞重编程和用于基因检测的高通量细胞微阵列芯片研究。
  • 基金资助:

    国家自然科学基金项目(81301334)

The roles of integrins and E-cadherin in the reprogramming and stemness maintenance of induced pluripotent stem cells

Hu Ruo-wen, Chen Xiao-fang   

  1. Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China
  • Revised:2018-05-24 Online:2018-10-18 Published:2018-10-18
  • Contact: Chen Xiao-fang, PhD, Associate professor, Master’s supervisor, Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China
  • About author:Hu Ruo-wen, Master candidate, Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81301334

摘要:

文章快速阅读:

文题释义:
整合素:
是一种介导细胞与细胞外基质间异亲型连接的跨膜受体。整合素可以通过黏着斑与质膜下的细胞骨架连接,将细胞外基质的化学信号和力学信号传递到细胞质内,从而激活下游信号通路,在干细胞重编程及干性维持中发挥重要作用。
E-钙黏素:是一种介导细胞间同亲型连接的跨膜受体。通过钙黏素可以将相邻细胞的细胞膜与肌动蛋白纤维连接使细胞彼此黏着。E-钙黏素为上皮型钙黏素,与干细胞重编程中的细胞间质-上皮转化过程密切相关,是干细胞重编程及干性维持中的关键因子。
细胞重编程:利用特定转录因子将已分化的细胞逆转恢复到类似胚胎干细胞,具有全能性状态的过程。在体外重编程过程中,细胞外基质的理化特性会作用于细胞表面影响诱导多能干细胞命运。由于诱导多能干细胞以克隆团状生长,细胞间黏附也会在此过程中发挥重要作用。

 

摘要
背景:
诱导多能干细胞在疾病模型和再生医学领域具有广阔的应用前景,能够利用安全高效的方法进行体细胞重编程是诱导多能干细胞广泛应用于临床的前提。近年来研究者们发现细胞黏附分子整合素和E-钙黏素对诱导多能干细胞重编程和干性维持有重要影响,对其分子机制的研究将帮助研究者设计更加安全有效的重编程方法和深入全面的理解重编程过程。
目的:从机制层面对整合素和E-钙黏素在诱导多能干细胞重编程及干性维持中的作用进行归纳总结。
方法:由第一作者检索Web of Science数据库2006年至今有关细胞黏附影响诱导多能干细胞重编程及干性维持的文献,从中挑选63篇与研究目的相关性较强,质量较高的文章进行总结。
结果与结论:整合素介导的细胞-基质间黏附与E-钙黏素介导的细胞-细胞间黏附可分别激活下游信号通路调控多能性基因表达,还可以作用于细胞骨架与核膜直接连接,通过多种机制产生基因水平、蛋白质水平和表观遗传学水平上的变化,最终影响诱导多能干细胞重编程及干性维持。

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: 0000-0003-2058-5731(陈晓芳)

关键词: 诱导多能干细胞, 细胞重编程, 多能性, 细胞黏附, 整合素, 钙黏素, 细胞骨架, 干细胞, 国家自然科学基金

Abstract:

BACKGROUND: Induced pluripotent stem cells (iPSCs) hold enormous potential as a tool to generate cells for disease modeling and regenerative medicine. The premise for clinical application of iPSCs is the efficient reprogramming of somatic cells to iPSCs. In recent years, increasing studies have demonstrated that integrins and E-cadherin play important roles in the reprogramming and maintenance of iPSCs. Investigations on the underlying molecular mechanism will help us developing safer and more efficient reprogramming methods for iPSCs generation and deeply understanding the reprogramming process.
OBJECTIVE: To summarize the effect of integrins and E-cadherin on the reprogramming of iPSCs and the maintenance of pluripotency based on the insights into the underlying molecular mechanisms.
METHODS: Scientific papers published from 2006 to present that described the effects of cell adhesion on reprogramming and stemness maintenance of iPSCs were retrieved by the first author in the Web of Science. Sixty-three articles related to the purpose of this review were reviewed.
RESULTS AND CONCLUSION: Integrins-mediated cell-matrix adhesion and E-cadherin-mediated cell-cell adhesion can regulate pluripotent gene expression through a variety of downstream signaling pathways, and can also play important roles in the organization and contractility of actin cytoskeletons that generate gene-, protein-, and epigenetic-level changes and ultimately influence cell reprogramming and stemness maintenance.

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: Induced Pluripotent Stem Cells, Integrins, Cytoskeleton, Tissue Engineering

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