PUBLICATION
Expression and function of lncRNA MALAT-1 in the embryonic development of zebrafish
- Authors
- Wu, M., Zhang, S., Chen, X., Xu, H., Li, X.
- ID
- ZDB-PUB-180925-10
- Date
- 2018
- Source
- Gene 680: 65-71 (Journal)
- Registered Authors
- Xu, Hui, Zhang, Shuqiang
- Keywords
- Embryonic development, LncRNA MALAT-1, Zebrafish
- MeSH Terms
-
- Animals
- Brain Chemistry
- Central Nervous System/chemistry
- Central Nervous System/growth & development
- Epigenesis, Genetic
- Eye/chemistry
- Eye/growth & development
- Gene Expression Profiling/methods*
- Gene Expression Regulation, Developmental
- Gene Knockdown Techniques
- Gene Regulatory Networks
- Heart/growth & development
- Muscle Development
- Muscles/chemistry
- Myocardium/chemistry
- RNA, Long Noncoding/genetics*
- Tissue Distribution
- Zebrafish/genetics
- Zebrafish/growth & development*
- PubMed
- 30248354 Full text @ Gene
Citation
Wu, M., Zhang, S., Chen, X., Xu, H., Li, X. (2018) Expression and function of lncRNA MALAT-1 in the embryonic development of zebrafish. Gene. 680:65-71.
Abstract
Long non-coding RNAs (lncRNAs) are RNA molecules with a transcript length of >200 nt which do not encode proteins, however, they have important functions in the form of RNA at transcriptional level, post-transcriptional level, and epigenetics. MALAT-1 is the first discovered lncRNA in non-small cell lung cancer and its orthologs have been found in zebrafish in the recent years. The present study aimed to determine the expression and possible function of MALAT-1 in the embryonic development of zebrafish. The results of qPCR or in situ hybridization showed that MALAT-1 was dynamically expressed in zebrafish embryonic development and it was widely expressed in brain, eye, heart, and muscle of adult fish. By morpholino knockdown of MALAT-1, Zebrafish embryos were found to have smaller body curvature, smaller eyes, enlarged pericardium, and reduced pigmentation. In particular, after morpholino knockdown of MALAT-1, the morphologically defective otic capsule was found to be smaller than the control fish. These results suggest that MALAT-1 may play a key role in the embryonic nervous system development of zebrafish. In addition, we also determined the expressions of seven development-related genes (Scyl1, egr1, oc90, vsx1, nkx2.5, vmhc, and gata4) after MALAT-1 knockdown and found that four genes egr1, nkx2.5, gata4, and vmhc were up-regulated, suggesting a potential regulatory role of MALAT-1 on these development-related genes.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping