Abstract:
:Activating mutations in GNAQ/GNA11, encoding Gαq G proteins, are initiating oncogenic events in uveal melanoma (UM). However, there are no effective therapies for UM. Using an integrated bioinformatics pipeline, we found that PTK2, encoding focal adhesion kinase (FAK), represents a candidate synthetic lethal gene with GNAQ activation. We show that Gαq activates FAK through TRIO-RhoA non-canonical Gαq-signaling, and genetic ablation or pharmacological inhibition of FAK inhibits UM growth. Analysis of the FAK-regulated transcriptome demonstrated that GNAQ stimulates YAP through FAK. Dissection of the underlying mechanism revealed that FAK regulates YAP by tyrosine phosphorylation of MOB1, inhibiting core Hippo signaling. Our findings establish FAK as a potential therapeutic target for UM and other Gαq-driven pathophysiologies that involve unrestrained YAP function.
journal_name
Cancer Celljournal_title
Cancer cellauthors
Feng X,Arang N,Rigiracciolo DC,Lee JS,Yeerna H,Wang Z,Lubrano S,Kishore A,Pachter JA,König GM,Maggiolini M,Kostenis E,Schlaepfer DD,Tamayo P,Chen Q,Ruppin E,Gutkind JSdoi
10.1016/j.ccell.2019.01.009subject
Has Abstractpub_date
2019-03-18 00:00:00pages
457-472.e5issue
3eissn
1535-6108issn
1878-3686pii
S1535-6108(19)30043-1journal_volume
35pub_type
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