Post-transcriptional and translational regulation of mRNA-like long non-coding RNAs by microRNAs in early developmental stages of zebrafish embryosopen access
- Authors
- Lee, Kyung-Tae; Nam, Jin-Wu
- Issue Date
- Apr-2017
- Publisher
- KOREAN SOCIETY BIOCHEMISTRY & MOLECULAR BIOLOGY
- Keywords
- lncRNA; miRNA; sORF; 3 ' poly(A)-tail; 5 ' cap
- Citation
- BMB REPORTS, v.50, no.4, pp.226 - 231
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- BMB REPORTS
- Volume
- 50
- Number
- 4
- Start Page
- 226
- End Page
- 231
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/20440
- DOI
- 10.5483/BMBRep.2017.50.4.025
- ISSN
- 1976-6696
- Abstract
- At the post-transcriptional and translational levels, microRNA (miRNA) represses protein-coding genes via seed pairing to the 3' untranslated regions (UTRs) of mRNA. Although working models of miRNA-mediated gene silencing are successfully established using miRNA transfections and knockouts, the regulatory interaction between miRNA and long non-coding RNA (lncRNA) remain unknown. In particular, how the mRNA-resembling lncRNAs with 5' cap, 3' poly(A)-tail, or coding features, are regulated by miRNA is yet to be examined. We therefore investigated the functional interaction between miRNAs and lncRNAs with/without those features, in miRNA-transfected early zebrafish embryos. We observed that the greatest determinants of the miRNA-mediated silencing of lncRNAs were the 5' cap and 3' poly(A)-tails in lncRNAs, at both the post-transcriptional and translational levels. The lncRNAs confirmed to contain 5' cap, 3' poly(A)-tail, and the canonical miRNA target sites, were observed to be repressed in the level of both RNA and ribosome-protected fragment, while those with the miRNA target sites and without 5' cap and 3' poly(A)-tail, were not robustly repressed by miRNA introduction, thus suggesting a role as a miRNA-decoy.
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