| First Author | Kimura-Yoshida C | Year | 2022 |
| Journal | Commun Biol | Volume | 5 |
| Issue | 1 | Pages | 378 |
| PubMed ID | 35440748 | Mgi Jnum | J:324183 |
| Mgi Id | MGI:7265447 | Doi | 10.1038/s42003-022-03254-7 |
| Citation | Kimura-Yoshida C, et al. (2022) USP39 is essential for mammalian epithelial morphogenesis through upregulation of planar cell polarity components. Commun Biol 5(1):378 |
| abstractText | Previously, we have shown that the translocation of Grainyhead-like 3 (GRHL3) transcription factor from the nucleus to the cytoplasm triggers the switch from canonical Wnt signaling for epidermal differentiation to non-canonical Wnt signaling for epithelial morphogenesis. However, the molecular mechanism that underlies the cytoplasmic localization of GRHL3 protein and that activates non-canonical Wnt signaling is not known. Here, we show that ubiquitin-specific protease 39 (USP39), a deubiquitinating enzyme, is involved in the subcellular localization of GRHL3 as a potential GRHL3-interacting protein and is necessary for epithelial morphogenesis to up-regulate expression of planar cell polarity (PCP) components. Notably, mouse Usp39-deficient embryos display early embryonic lethality due to a failure in primitive streak formation and apico-basal polarity in epiblast cells, resembling those of mutant embryos of the Prickle1 gene, a crucial PCP component. Current findings provide unique insights into how differentiation and morphogenesis are coordinated to construct three-dimensional complex structures via USP39. |
