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2014 ; 25
(6
): 831-45
Nephropedia Template TP
gab.com Text
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English Wikipedia
Hippo-independent activation of YAP by the GNAQ uveal melanoma oncogene through a
trio-regulated rho GTPase signaling circuitry
#MMPMID24882515
Feng X
; Degese MS
; Iglesias-Bartolome R
; Vaque JP
; Molinolo AA
; Rodrigues M
; Zaidi MR
; Ksander BR
; Merlino G
; Sodhi A
; Chen Q
; Gutkind JS
Cancer Cell
2014[Jun]; 25
(6
): 831-45
PMID24882515
show ga
Mutually exclusive activating mutations in the GNAQ and GNA11 oncogenes, encoding
heterotrimeric G?q family members, have been identified in ? 83% and ? 6% of
uveal and skin melanomas, respectively. However, the molecular events underlying
these GNAQ-driven malignancies are not yet defined, thus limiting the ability to
develop cancer-targeted therapies. Here, we focused on the transcriptional
coactivator YAP, a critical component of the Hippo signaling pathway that
controls organ size. We found that G?q stimulates YAP through a Trio-Rho/Rac
signaling circuitry promoting actin polymerization, independently of
phospholipase C? and the canonical Hippo pathway. Furthermore, we show that G?q
promotes the YAP-dependent growth of uveal melanoma cells, thereby identifying
YAP as a suitable therapeutic target in uveal melanoma, a GNAQ/GNA11-initiated
human malignancy.