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USP39 is essential for mammalian epithelial morphogenesis through upregulation of planar cell polarity components.

Communications biology (2022-04-21)
Chiharu Kimura-Yoshida, Kyoko Mochida, Shin-Ichiro Kanno, Isao Matsuo
RÉSUMÉ

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.

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Description du produit

Sigma-Aldrich
Wnt Agonist, The Wnt Agonist, also referenced under CAS 853220-52-7, controls the biological activity of Wnt. This small molecule/inhibitor is primarily used for Cancer applications.
Sigma-Aldrich
Anti-USP39 antibody produced in rabbit, affinity isolated antibody