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2017 ; 12
(9
): e0184068
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English Wikipedia
Tankyrase inhibitors suppress hepatocellular carcinoma cell growth via modulating
the Hippo cascade
#MMPMID28877210
Jia J
; Qiao Y
; Pilo MG
; Cigliano A
; Liu X
; Shao Z
; Calvisi DF
; Chen X
PLoS One
2017[]; 12
(9
): e0184068
PMID28877210
show ga
Previous data indicate that Tankyrase inhibitors exert anti-growth functions in
many cancer cell lines due to their ability to inactivate the YAP protooncogene.
In the present manuscript, we investigated the effect of Tankyrase inhibitors on
the growth of hepatocellular carcinoma (HCC) cell lines and the molecular
mechanisms involved. For this purpose, we performed cell proliferation assay by
colony-forming ability in seven human HCC cells subjected to XAV-939 and G007-LK
Tankyrase inhibitors. Noticeably, the two Tankyrase inhibitors suppressed the HCC
cell growth in a dose-dependent manner. Furthermore, we found that Tankyrase
inhibitors synergized with MEK and AKT inhibitors to suppress HCC cell
proliferation. At the molecular level, Tankyrase inhibitors significantly
decreased YAP protein levels, reduced the expression of YAP target genes, and
inhibited YAP/TEAD luciferase reporter activity. In addition, Tankyrase
inhibitors administration was accompanied by upregulation of Angiomotin-like 1
(AMOTL1) and Angiomotin-like 2 (AMOTL2) proteins, two major negative regulators
of YAP. Altogether, the present data indicate that XAV-939 and G007-LK Tankyrase
inhibitors could suppress proliferation of hepatocellular carcinoma cells and
downregulate YAP/TAZ by stabilizing AMOTL1 and AMOTL2 proteins, thus representing
new potential anticancer drugs against hepatocellular carcinoma.
|Adaptor Proteins, Signal Transducing/metabolism
[MESH]
|Angiomotins
[MESH]
|Antineoplastic Agents/*therapeutic use
[MESH]
|Apoptosis/drug effects
[MESH]
|Blotting, Western
[MESH]
|Carcinoma, Hepatocellular/*drug therapy
[MESH]
|Carrier Proteins/metabolism
[MESH]
|Cell Line, Tumor
[MESH]
|Cell Proliferation/drug effects
[MESH]
|Dose-Response Relationship, Drug
[MESH]
|Heterocyclic Compounds, 3-Ring/*therapeutic use
[MESH]