环状 RNA、转化生长因子-β和长链非编码 RNA 在肝细胞癌中的分子机制。

Molecular mechanisms of circular RNAs, transforming growth factor-β, and long noncoding RNAs in hepatocellular carcinoma.

机构信息

Department of Laboratory Medicine, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China.

Physiology Department, Xuzhou Medical University, Xuzhou, Jiangsu, China.

出版信息

Cancer Med. 2019 Nov;8(15):6684-6699. doi: 10.1002/cam4.2553. Epub 2019 Sep 15.

Abstract

At the heart of hepatocellular carcinoma (HCC) lies disruption of signaling pathways at the level of molecules, genes, and cells. Non-coding RNAs (ncRNAs) have been implicated in the disease progression of HCC. For instance, dysregulated expression of circular RNAs (circRNAs) has been observed in patients with HCC. As such, these RNAs are potential therapeutic targets and diagnostic markers for HCC. Long non-coding RNAs (lncRNAs), a type of ncRNA, have also been recognized to participate in the initiation and progression of HCC. Transforming growth factor-beta (TGF-β) is another element which is now recognized to play crucial roles in HCC. It has been implicated in many biological processes such as survival, immune surveillance, and cell proliferation. In HCC, TGF-β promotes disease progression by two mechanisms: an intrinsic signaling pathway and the extrinsic pathway. Through these pathways, it modulates various microenvironment factors such as inflammatory mediators and fibroblasts. An interesting yet-to-be resolved concept is whether the HCC-promoting role of TGF-β pathways is limited to a subset of HCC patients or it is involved in the whole process of HCC development. This review summarizes recent advancements to highlight the roles of circRNAs, lncRNAs, and TGF-β in HCC.

摘要

肝细胞癌(HCC)的核心在于分子、基因和细胞水平上信号通路的紊乱。非编码 RNA(ncRNA)被认为与 HCC 的疾病进展有关。例如,在 HCC 患者中观察到环状 RNA(circRNA)的表达失调。因此,这些 RNA 是 HCC 的潜在治疗靶点和诊断标志物。长链非编码 RNA(lncRNA)作为一种 ncRNA,也被认为参与 HCC 的发生和发展。转化生长因子-β(TGF-β)是另一个现已被认为在 HCC 中发挥关键作用的元素。它参与许多生物学过程,如存活、免疫监视和细胞增殖。在 HCC 中,TGF-β 通过两种机制促进疾病进展:内在信号通路和外在通路。通过这些途径,它调节各种微环境因子,如炎症介质和成纤维细胞。一个有趣但尚未解决的概念是,TGF-β 途径促进 HCC 的作用是否仅限于一小部分 HCC 患者,还是它参与 HCC 发展的整个过程。本综述总结了最近的进展,强调了 circRNA、lncRNA 和 TGF-β 在 HCC 中的作用。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a7f/6826001/2a1020cb9336/CAM4-8-6684-g001.jpg

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