Published online Aug 7, 2016. doi: 10.3748/wjg.v22.i29.6610
Peer-review started: March 25, 2016
First decision: May 12, 2016
Revised: May 26, 2016
Accepted: June 15, 2016
Article in press: June 15, 2016
Published online: August 7, 2016
Noncoding RNAs (ncRNAs) have attracted much attention in cancer research field. They are involved in cellular development, proliferation, differentiation and apoptosis. The dysregulation of ncRNAs has been reported in tumor initiation, progression, invasion and metastasis in various cancers, including gastric cancer (GC). In the past few years, an accumulating body of evidence has deepened our understanding of ncRNAs, and several emerging ncRNAs have been identified, such as PIWI-interacting RNAs (piRNAs) and circular RNAs (circRNAs). The competing endogenous RNA (ceRNA) networks include mRNAs, microRNAs, long ncRNAs (lncRNAs) and circRNAs, which play critical roles in the tumorigenesis of GC. This review summarizes the recent hotspots of ncRNAs involved in GC pathobiology and their potential applications in GC. Finally, we briefly discuss the advances in the ceRNA network in GC.
Core tip: Accumulating data have deepened our understanding of the contribution of noncoding RNAs (ncRNAs) in cancer development, and several emerging ncRNAs have been identified, such as PIWI-interacting RNAs and circular RNAs. The competing endogenous RNA (ceRNA) network hypothesis represents a widespread form of post-transcriptional regulation of gene expression. However, their function and mechanism remain unknown. This review summarizes the recent advances of ncRNAs involved in gastric cancer (GC) pathobiology and their potential applications in GC, as well as advances in ceRNA networks.