ZFIN ID: ZDB-PUB-101222-29
A Zebrafish Cell Culture Assay for the Identification of MicroRNA Targets
Liu, W., Guan, Y., and Collodi, P.
Date: 2010
Source: Zebrafish   7(4): 343-348 (Journal)
Registered Authors: Collodi, Paul
Keywords: none
MeSH Terms:
  • Animals
  • Cell Culture Techniques
  • Cell Line
  • DNA, Complementary
  • Genetic Techniques*
  • MicroRNAs/genetics
  • MicroRNAs/metabolism*
  • RNA, Messenger/genetics
  • Zebrafish*
PubMed: 21158564 Full text @ Zebrafish
MicroRNAs (miRNAs) are endogenous small noncoding RNAs that regulate gene expression at the posttranscriptional level. Studies have shown that zebrafish miRNAs play a key role in embryo development, tissue fate establishment, and differentiation by interacting with specific targets, usually in the 3'UTR of the mRNA. Identification of the target sequence is fundamental to elucidating miRNA function. Since bioinformatics can predict hundreds of potential targets for each miRNA, experimental validation of the actual target site is required. Although recent studies have employed the HEK293 cell line to investigate mammalian miRNA targets, our results have shown that the cell line is not suitable for studies of zebrafish miR-430b miRNA. In this article we describe a convenient in vitro assay system that involves the use of zebrafish cell cultures and a luciferase reporter construct to evaluate miR-430b target sites. The cell culture-based assay could be used to validate target sequences of other zebrafish miRNAs.