CircRNA is a new endogenous non-coding RNA(ncRNA ) and a member of the competitive endogenous RNA(ceRNA) family. Some researches have found that circRNA exists widely in organisms and interacts with miRNA, which has certain influence on the occurrence and development of liver diseases. This article reviews the research progress of circRNA and its biological functions, as well as the relationship between circRNA and liver disease, in order to expound the role of circRNA in liver diseases and guide clinical practice better.
环状RNA（circRNA）是一种新兴的内源性非编码RNA（ncRNA），同时也是竞争性内源RNA（ceRNA）家族中的成员，有研究发现circRNA广泛存在于生物体内，与微RNA（miRNA）相互作用，对肝脏疾病的发生、发展起重要作用。现就circRNA及其生物学功能、以及circRNA与肝脏疾病关系的研究进展进行综述，以期更好地阐述circRNA在肝脏疾病中的作用，更好地指导临床。.
Keywords: Biological function; Liver disease; Mechanism; RNA.