Abstract:
:Previously, Aznar et al., showed that Daple/CCDC88C enables Wnt receptors to transactivate trimeric G-proteins during non-canonical Wnt signaling via a novel G-protein binding and activating (GBA) motif. By doing so, Daple serves two opposing roles; earlier during oncogenesis it suppresses neoplastic transformation and tumor growth, but later it triggers epithelial-to-mesenchymal-transition (EMT). We have identified and characterized two isoforms of the human Daple gene. While both isoforms cooperatively suppress tumor growth via their GBA motif, only the full-length transcript triggers EMT and invasion. Both isoforms are suppressed during colon cancer progression, and their reduced expression carries additive prognostic significance. These findings provide insights into the opposing roles of Daple during cancer progression and define the G-protein regulatory GBA motif as one of the minimal modules essential for Daple's role as a tumor suppressor.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Ear J,Dunkel Y,Mittal Y,Lim BBC,Liu L,Holda MK,Nitsche U,Barbazán J,Goel A,Janssen KP,Aznar N,Ghosh Pdoi
10.1038/s41598-019-48420-wsubject
Has Abstractpub_date
2019-08-20 00:00:00pages
12124issue
1issn
2045-2322pii
10.1038/s41598-019-48420-wjournal_volume
9pub_type
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