Wnt/β-catenin信号通路相关环状RNA在肺癌中的研究进展
2021-06-22王灵霞严玉兰
王灵霞?严玉兰
【摘要】环状RNA(circRNA)是转录组中普遍存在的一种封闭成环RNA分子,参与癌症在内的多种疾病进展。Wnt/β-连环蛋白(β-catenin)信号通路控制着许多驱动癌症发展的细胞过程,circRNA的异常表达可通过包括Wnt/β-catenin信号通路在内的多种特定信号通路促进癌症的发生和发展。近年来多项研究表明Wnt/β-catenin信号通路相关circRNA在肺癌中作为新的生物标志物和治疗靶点的潜能。该文就Wnt/β-catenin信号通路相关circRNA对肺癌的影响做一综述,以期为肺癌诊治研究提供新的思路。
【关键词】环状核糖核酸;肺癌;Wnt/β-catenin信号通路
Research progress on circular RNA related to Wnt/β-catenin signaling pathway in lung cancer Wang Lingxia, Yan Yulan. School of Medicine, Jiangsu University, Zhenjiang 212013, China
Corresponding author, Yan Yulan, E-mail: ylyan2005@ 163. com
【Abstract】Circular RNA (circRNA) is a ubiquitous closed-loop RNA molecule in the transcriptome, which is involved in the progression of many diseases including cancer. The Wnt/β-catenin signaling pathway controls various cellular processes that drive the development of cancer. The abnormal expression of circRNA can promote the occurrence and development of cancer through a variety of specific signaling pathways including the Wnt/β-catenin signaling pathway. In recent years, many studies have shown that the Wnt/β-catenin signaling pathway-associated circRNA has the potential as a novel biomarker and therapeutic target in lung cancer. In the article, the effect of circRNA related to the Wnt/β-catenin signaling pathway on lung cancer was reviewed, aiming to provide novel ideas for the diagnosis and treatment of lung cancer.
【Key words】Circular RNA;Lung neoplasm;Wnt/β-catenin signaling pathway
肺癌的发病率和病死率在恶性肿瘤中位居首位[1]。肺癌可分为两大类:小细胞肺癌(SCLC)和非小细胞肺癌(NSCLC),其中NSCLC又主要包括大细胞癌、鳞癌、腺癌和腺鳞癌。研究表明,肺癌患者的生存率与分期密切相关,随着疾病进展,其5年生存率从ⅠA期的82%逐渐下降到Ⅳ期的6%[2]。因此,研究肺癌发生发展的分子机制、寻找肺癌生物标志物和探索新的治疗靶点至关重要。环状RNA(circRNA)是一类长度至少为几百个核苷酸,没有5和3末端的闭合环状非编码RNA,其异常表达能够通过Wnt/β-连环蛋白(β-catenin)信号通路在内的多种信号通路调控肺癌细胞增殖、迁移、凋亡等能力[3]。关于circRNA与Wnt/β-catenin信号通路相互作用调控靶基因是近年来肺癌基础研究的热点,但目前尚缺乏归纳总结。本文就Wnt/β-catenin信号通路相关circRNA对肺癌的影响进行综述,以期为肺癌的诊断寻找新的生物标志物和潜在疗法。
一、circRNA的生物学功能
circRNA是转录组中普遍存在的一种封闭的成环RNA分子。由于缺乏5和3末端,它们不易被RNA酶降解,因此比线性RNA更稳定。……
