Abstract:
:Rationale: PLAGL2 (pleomorphic adenoma gene like-2), a zinc finger PLAG transcription factor, is aberrantly expressed in several malignant tumors. However, the biological roles of PLAGL2 and its underlying mechanism in gastric cancer (GC) remain unclear. Methods: A series of experiments in vitro and in vivo were conducted to reveal the role of PLAGL2 in GC progression. Results: The data revealed that PLAGL2 promotes GC cell proliferation, migration, invasion, and EMT in vitro and in vivo. Mechanistically, we demonstrated the critical role of PLAGL2 in the stabilization of snail family transcriptional repressor 1 (Snail1) and promoting Snail1-mediated proliferation and migration of GC cells. PLAGL2 activated the transcription of deubiquitinase USP37, which then interacted with and deubiquitinated Snail1 protein directly. In addition, GSK-3β-dependent phosphorylation of Snail1 protein is essential for USP37-mediated Snail1 deubiquitination regulation. Conclusions: In general, PLAGL2 promotes the proliferation and migration of GC cells through USP37-mediated deubiquitination of Snail1 protein. This work provided potential therapeutic targets for GC treatment.
journal_name
Theranosticsjournal_title
Theranosticsauthors
Wu L,Zhao N,Zhou Z,Chen J,Han S,Zhang X,Bao H,Yuan W,Shu Xdoi
10.7150/thno.47800subject
Has Abstractpub_date
2021-01-01 00:00:00pages
700-714issue
2issn
1838-7640pii
thnov11p0700journal_volume
11pub_type
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