【摘要】 背景:越来越多的研究工作证实在维持骨稳态的精细复杂机制中有许多非编码RNA发挥作用,将非编码RNA作为生物活性因子用于骨组织工程修复骨缺损是一个研究热点。目的:介绍非编码RNA作为生物活性因子在骨组织工程中的应用。方法:由第一作者在2018年12月至2019年3月间以"bone tissue engineering,nc RNA(miRNA、siRNA或lncRNA),scaffold,drug delivery system"为关键词,检索2004至2019年期间Web of Science、Pub Med、Springer Link数据库收录的相关文献。初检得到相关文献1 754篇,筛选后对95篇文章进行分析。结果与结论:因为非编码RNA在成骨分化中发挥关键作用,所以可以作为骨组织工程的重要生物活性因子得以应用。目前基于非编码RNA生物活性因子的骨组织工程修复方式,成为骨缺损修复的一个研究热点,主要有2种应用策略:(1)将种子细胞内非编码RNA转录有目的地改变后与骨组织工程支架结合,以促进骨缺损修复;(2)用特殊设计的骨组织工程支架可控地、有目的地改变种子细胞内非编码RNA表达,以促进骨缺损修复。此外,愈来愈多的非编码RNA在骨再生过程中的功能被明确,表现出良好的应用前景。更多还原

【Abstract】 BACKGROUND: Since non-coding RNAs maintain bone homeostasis through various pathways, applications of non-coding RNAs as bioactive molecules in bone tissue engineering for bone defect repair has become an increasing area of interest. OBJECTIVE: To introduce non-coding RNAs as bioactive molecules in bone tissue engineering.METHODS: A computer-based online search of Web of Science, Pub Med, Springer Link databases was performed by the first author between December 2018 and March 2019 using the search terms "bone tissue engineering, ncRNA(miRNA, siRNA or lncRNA), scaffold, drug delivery system" to retrieve papers published during 2004-2019. A total of 1754 papers were preliminarily retrieved, and 95 of them were eligible for final analysis. RESULTS AND CONCLUSION: Because non-coding RNAs play a key role in osteogenic differentiation, they can be used as important bioactive factors for bone tissue engineering. At present, bone tissue engineering repair methods based on non-coding RNA bioactive factors have become a research hotspot in bone defect repair. There are two major application strategies:(1) The non-coding RNA transcription within the seed cells is purposefully altered and combines with the bone tissue-engineered scaffold to promote bone defect repair.(2) a specifically designed bone engineered scaffold can controllably and purposefully alter the expression of non-coding RNA in the seed cells, which promotes bone defect repair. In addition, the function of more and more non-coding RNAs has been identified in the process of bone regeneration. This shows good application prospects of non-coding RNAs.更多还原