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The juvenility-associated long noncoding RNA Gm14230 maintains cellular juvenescence.
- Source :
-
Journal of cell science [J Cell Sci] 2019 Apr 16; Vol. 132 (8). Date of Electronic Publication: 2019 Apr 16. - Publication Year :
- 2019
-
Abstract
- Juvenile animals possess distinct properties that are missing in adults. These properties include capabilities for higher growth, faster wound healing, plasticity and regeneration. However, the molecular mechanisms underlying these juvenile physiological properties are not fully understood. To obtain insight into the distinctiveness of juveniles from adults at the molecular level, we assessed long noncoding RNAs (lncRNAs) that are highly expressed selectively in juvenile cells. The noncoding elements of the transcriptome were investigated in hepatocytes and cardiomyocytes isolated from juvenile and adult mice. Here, we identified 62 juvenility-associated lncRNAs (JAlncs), which are selectively expressed in both hepatocytes and cardiomyocytes from juvenile mice. Among these common (shared) JAlncs, Gm14230 is evolutionarily conserved and is essential for cellular juvenescence. Loss of Gm14230 impairs cell growth and causes cellular senescence. Gm14230 safeguards cellular juvenescence through recruiting the histone methyltransferase Ezh2 to Tgif2 , thereby repressing the functional role of Tgif2 in cellular senescence. Thus, we identify Gm14230 as a juvenility-selective lncRNA required to maintain cellular juvenescence.<br />Competing Interests: Competing interestsThe authors declare no competing or financial interests.<br /> (© 2019. Published by The Company of Biologists Ltd.)
- Subjects :
- Animals
Cell Cycle
Enhancer of Zeste Homolog 2 Protein genetics
Gene Expression Regulation
Hepatocytes cytology
Homeodomain Proteins genetics
Male
Mice
Mice, Inbred C57BL
Myocytes, Cardiac cytology
NIH 3T3 Cells
Repressor Proteins genetics
Transcriptome
Transfection
Aging genetics
Enhancer of Zeste Homolog 2 Protein metabolism
Homeodomain Proteins metabolism
RNA, Long Noncoding genetics
Repressor Proteins metabolism
Subjects
Details
- Language :
- English
- ISSN :
- 1477-9137
- Volume :
- 132
- Issue :
- 8
- Database :
- MEDLINE
- Journal :
- Journal of cell science
- Publication Type :
- Academic Journal
- Accession number :
- 30872457
- Full Text :
- https://doi.org/10.1242/jcs.227801