| First Author | Thumkeo D | Year | 2005 |
| Journal | Genes Cells | Volume | 10 |
| Issue | 8 | Pages | 825-34 |
| PubMed ID | 16098146 | Mgi Jnum | J:106856 |
| Mgi Id | MGI:3619683 | Doi | 10.1111/j.1365-2443.2005.00882.x |
| Citation | Thumkeo D, et al. (2005) ROCK-I and ROCK-II cooperatively regulate closure of eyelid and ventral body wall in mouse embryo. Genes Cells 10(8):825-34 |
| abstractText | Rho-associated kinase (ROCK) is a serine/threonine kinase working in the Rho signaling to actin cytoskeleton. We previously reported that loss of ROCK-I results in the eyelid open at birth (EOB) and omphalocele phenotype in mice, while loss of ROCK-II results in placental dysfunction leading to intrauterine growth retardation and fetal death. Here, we report that after backcross to the C57BL/6 N genetic background, ROCK-II knockout (KO) neonates are born also with open eyelid and umbilical hernia, a phenotype similar to that of ROCK-I KO mice. ROCK-II KO embryos show impaired extension of the eyelid epithelial sheet with disorganized actin bundles in the leading edge of the sheet. These results suggest that ROCK-I and ROCK-II cooperatively regulates the assembly of actin bundles essential for closure of the eyelid and ventral body wall in mouse embryos. Consistently, ROCK-I(+/-)ROCK-II(+/-) double heterozygous mice also show the EOB and omphalocele phenotype. |
