中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (2): 267-272.doi: 10.3969/j.issn.2095-4344.2015.02.020

• 组织构建综述 tissue construction review • 上一篇    下一篇

脊髓损伤与MicroRNA:体外预构组织工程化脊髓及损伤脊髓修复中的作用

李  觅,姚  猛   

  1. 哈尔滨医科大学附属临床第二医院脊柱外科,黑龙江省哈尔滨市  150081
  • 收稿日期:2014-12-15 出版日期:2015-01-08 发布日期:2015-01-08
  • 通讯作者: 姚猛,主任医师,教授,博士生导师,哈尔滨医科大学附属临床第二医院脊柱外科,黑龙江省哈尔滨市 150081
  • 作者简介:李觅,男,1987年生,汉族,河南省人,哈尔滨医科大学在读硕士。
  • 基金资助:

    国家自然科学基金(30770543)

Spinal cord injury and MicroRNA: in vitro prefabrication of tissue-engineered spinal cord and repair of spinal cord injury

Li Mi, Yao Meng   

  1. Department of Spinal Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150081, Heilongjiang Province, China
  • Received:2014-12-15 Online:2015-01-08 Published:2015-01-08
  • Contact: Yao Meng, Chief physician, Professor, Doctoral supervisor, Department of Spinal Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150081, Heilongjiang Province, China
  • About author:Li Mi, Studying for master’s degree, Department of Spinal Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150081, Heilongjiang Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 30770543

摘要:

背景:在全世界范围内创伤导致的脊髓损伤使每年超过18万人出现永久性的功能障碍。近年来大量实验证实,生理条件下MicroRNA在神经系统存在特异性表达并发挥重要作用。
目的:论述损伤如何影响MicroRNA的表达和在脊髓损伤中这些变化的病理生理学意义及miRNA在组织工程化和临床脊髓损伤修复中的发展潜力。
方法:通过计算机检索2000年1月至2014年12月PubMed和中国期刊数据库中的相关文章,检索词为“SCI,microRNA,Transcriptional control,Clinical research progress”,“脊髓损伤、微小RNA、转录调控和临床应用”,最终选定38篇文章作为文章参考文献。
结果与结论:最初的机械损伤引发了一系列复杂的二次伤害,其中包括神经、血管和免疫系统,这在很大程度上影响了脊髓功能损伤的严重程度。脊髓二次损伤主要取决于与细胞生化机制相关的某些特定基因的激活与失活,如半胱氨酸天冬氨酸特异性蛋白酶(caspase)基因家族,凋亡相关蛋白Fas及其配体Fasl系统,p53基因、凋亡相关基因bcl-2家族等。近期的研究证明,MicroRNA表达功能的激活在脊髓损伤起到关键作用。随着生物信息工程的发展,与MicroRNA相关的研究和控制表达技术逐步被人们所掌控,部分基于MicroRNA技术的临床应用已经进入临床试验阶段,相信随着技术的发展和成本的不断降低,未来人类通过MicroRNA相关技术在基因水平调节和修复脊髓损伤所遗留下的永久性功能障碍。



中国组织工程研究
杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程


全文链接:

关键词: 组织构建, 组织工程, 脊髓损伤, microRNA, 转录调控, 临床研究进展, 免疫应答, 炎症反应, 组织修复, 细胞再生, 基因表达, 国家自然科学基金

Abstract:

BACKGROUND: In the whole world, spinal cord injuries caused by trauma lead to more than 180 000 people presenting with permanent impairment annually. A large number of experiments have confirmed in recent years, under physiological conditions, microRNA has specific expression and plays an important role in the nervous system.
OBJECTIVE: To discuss the changes in microRNA expression induced by injuries as well as the pathophysiological significance in spinal cord injury, and to explore the development potential of microRNA in tissue-engineered and clinical repair of spinal cord injury.
METHODS: A computer-based search of PubMed and Chinese Journal Database was performed for related articles published from January 2000 to December 2014 using the keywords of “SCI, microRNA, transcriptional control, clinical research progress” in English and Chinese. Finally, 38 articles were included for result analysis.
RESULTS AND CONCLUSION: Mechanical injury initially triggers a series of complex secondary damages, including nervous, vascular and immune systems, which can influence the severity of spinal cord injury to a great extent. Secondary damage to the spinal cord is mainly attributed to the activation and deactivation of some specific genes associated with cellular and biochemical mechanisms, such as cysteine aspartate specific protease (caspase) gene family, apoptosis related protein Fas and its ligand Fasl system, P53 gene, apoptosis related gene Bcl-2 family. Recent studies have proved that the functional activation of microRNA expression is the key to spinal cord injury. With the development of biological information engineering, studies and controlling technologies associated with microRNA expression have been gradually dominated, some clinical application based on microRNA technology has entered the clinical trial stage. It is believed that with the continuous development of technology and decrease of cost, permanent dysfunction due to spinal cord injury can be regulated and repaired through the microRNA technology at gene level in the future.



中国组织工程研究
杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程


全文链接:

Key words: Tissue Engineering, Spinal Cord Injuries, Transcription Factors, Review

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