生物技术通报 ›› 2015, Vol. 31 ›› Issue (7): 33-39.doi: 10.13560/j.cnki.biotech.bull.1985.2015.07.004

• 综述与专论 • 上一篇    下一篇

长链非编码RNA与肿瘤和干细胞

万波1, 廖世奇2, 袁红霞2, 马梅兰1, 朱剑3, 曾家豫1   

  1. (1.西北师范大学生命科学学院,兰州 730070;2.甘肃省肿瘤医院,兰州730050;3. 兰州理工大学生命科学与工程学院,兰州 730050)
  • 收稿日期:2014-10-11 出版日期:2015-07-16 发布日期:2015-07-16
  • 作者简介:万波,女,硕士研究生,研究方向:lncRNAs与肿瘤的关系及核酸适配体的筛选;E-mail:gtxingxing520@163.com

A Review on Correlation Between Long Non-coding RNAs and Cancer as well as Stem Cells

Wan Bo1, Liao Shiqi2, Yuan Hongxia2, Ma Meilan1, Zhu Jian3, Zeng Jiayu1   

  1. (1. School of Life Sciences,Northwest Normal University,Lanzhou 730070;2. Gansu Provincial Cancer Hospital,Lanzhou 730050;3. College of Life Science and Engineering,Lanzhou University of Technology,Lanzhou 730050)
  • Received:2014-10-11 Published:2015-07-16 Online:2015-07-16

摘要: 人类基因组包含20 000多种蛋白质编码基因,只占总基因的2%左右,而90%以上的转录子是长链非编码RNA(Long non-coding RNAs,lncRNAs)。lncRNAs是广泛存在于哺乳动物基因组中的长度在200-100 000 nt之间,且不具有蛋白质编码功能的转录本。研究发现其在许多类型的肿瘤中存在异常表达,具有潜在的致癌或抑癌作用,并作为重要的调控分子参与各种生物学过程,与肿瘤的发生、发展密不可分。此外,lncRNAs在维持干细胞全能性、调控干细胞基因表达、调节干细胞自我更新和分化等方面发挥了至关重要的作用,是继microRNA后肿瘤研究的新热点。针对lncRNAs在肿瘤和干细胞生物学中的功能及相关机制作一综述,旨在为肿瘤的诊断、治疗、预后等方面提供新思路。

关键词: 长链非编码RNA, 干细胞, 肿瘤, 致癌, 抑癌, 调控

Abstract: The human genome contains more than 20 000 protein-coding genes, only approximately 2% of the total genes, while over 90% of the transcripts are long non-coding RNAs(lncRNAs). lncRNAs are transcripts commonly distributed in genomes of most mammals, with length of 200 to 100 000 nt, but not possessing function of encoding proteins. Studies have shown that lncRNAs were abnormally expressed in numerous types of cancers, playing a potential oncogenic or suppressor role in tumorigenesis. Meanwhile, lncRNAs have been found to be critical regulators of various biological processes, and they were inseparable with the occurrence and development of tumors. Besides, lncRNAs play a vital role in maintaining pluripotency and regulating the gene expression, self-regeneration and differentiation in stem cells, and they are becoming the new hot spot in cancer researches after microRNA. In this review, we summarize the functions and underlying mechanisms of lncRNAs in cancer and in stem cells biology, which aims to provide new ideas about diagnosis, treatment, and prognosis of the tumor.

Key words: long non-coding RNAs, stem cells, cancer, oncogenic, suppressor, regulate