| First Author | Watanabe T | Year | 2008 |
| Journal | Dev Dyn | Volume | 237 |
| Issue | 12 | Pages | 3738-48 |
| PubMed ID | 18985749 | Mgi Jnum | J:143209 |
| Mgi Id | MGI:3823170 | Doi | 10.1002/dvdy.21787 |
| Citation | Watanabe T, et al. (2008) Dnm3os, a non-coding RNA, is required for normal growth and skeletal development in mice. Dev Dyn 237(12):3738-48 |
| abstractText | Dnm3os, a gene that is transcribed into a non-coding RNA (ncRNA), contains three micro RNAs (miRNAs), miR-199a, miR-199a*, and miR-214, whose functions remain unknown in mammals. In this study, we introduced the lacZ gene into the Dnm3os locus to recapitulate its expression pattern and disrupt its function. Dnm3os(+/lacZ) heterozygous embryos showed beta-galactosidase activity, which reflected the authentic expression pattern of Dnm3os RNA. Most of the Dnm3os(lacZ/lacZ) homozygous pups died within one month of birth. After birth, Dnm3os(lacZ/lacZ) mice exhibited several skeletal abnormalities, including craniofacial hypoplasia, defects in dorsal neural arches and spinous processes of the vertebrae, and osteopenia. Importantly, the expression of miR-199a, miR-199a*, and miR-214 was significantly down-regulated in Dnm3os(lacZ/lacZ) embryos, supporting the assumption that Dnm3os serves as a precursor of these three miRNAs. Thus, Dnm3os has emerged as an miRNA-encoding gene that is indispensable for normal skeletal development and body growth in mammals. |
