Zhang, B., Arun, G., Mao, Y. S., Lazar, Z., Hung, G., Bhattacharjee, G., Xiao, X., Booth, C. J., Wu, J., Zhang, C., Spector, D. L. (2012) The lncRNA Malat1 is dispensable for mouse development but its transcription plays a cis-regulatory role in the adult. Cell Reports, 2 (1). pp. 111-123. ISSN 2211-1247
Abstract
Genome-wide studies have identified thousands of long noncoding RNAs (lncRNAs) lacking protein-coding capacity. However, most lncRNAs are expressed at a very low level, and in most cases there is no genetic evidence to support their in vivo function. Malat1 (metastasis associated lung adenocarcinoma transcript 1) is among the most abundant and highly conserved lncRNAs, and it exhibits an uncommon 3'-end processing mechanism. In addition, its specific nuclear localization, developmental regulation, and dysregulation in cancer are suggestive of it having a critical biological function. We have characterized a Malat1 loss-of-function genetic model that indicates that Malat1 is not essential for mouse pre- and postnatal development. Furthermore, depletion of Malat1 does not affect global gene expression, splicing factor level and phosphorylation status, or alternative pre-mRNA splicing. However, among a small number of genes that were dysregulated in adult Malat1 knockout mice, many were Malat1 neighboring genes, thus indicating a potential cis-regulatory role of Malat1 gene transcription.
| Item Type: | Paper |
|---|---|
| Subjects: | bioinformatics bioinformatics > genomics and proteomics > genetics & nucleic acid processing > DNA, RNA structure, function, modification > transcription bioinformatics > genomics and proteomics > genetics & nucleic acid processing organism description > animal > mammal > rodent > mouse |
| CSHL Authors: | |
| Communities: | CSHL Cancer Center Shared Resources > Animal Services CSHL Cancer Center Shared Resources > DNA Sequencing Service CSHL Cancer Center Shared Resources > Microscopy Service CSHL Post Doctoral Fellows CSHL labs > Spector lab CSHL Cancer Center Program > Gene Regulation and Cell Proliferation |
| Depositing User: | Matt Covey |
| Date: | 2012 |
| Date Deposited: | 10 Dec 2012 20:02 |
| Last Modified: | 20 Jul 2021 14:55 |
| PMCID: | PMC3408587 |
| Related URLs: | |
| URI: | https://repository.cshl.edu/id/eprint/26374 |
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