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2017 ; 108
(3
): 478-487
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Verteporfin suppresses cell survival, angiogenesis and vasculogenic mimicry of
pancreatic ductal adenocarcinoma via disrupting the YAP-TEAD complex
#MMPMID28002618
Wei H
; Wang F
; Wang Y
; Li T
; Xiu P
; Zhong J
; Sun X
; Li J
Cancer Sci
2017[Mar]; 108
(3
): 478-487
PMID28002618
show ga
Pancreatic ductal adenocarcinoma (PDAC) is one of the most aggressive human
malignancies. The Yes-associated protein-1 (YAP) plays a critical role in cell
proliferation, apoptosis and angiogenesis. Verteporfin is a photosensitizer used
in photodynamic therapy and also a small molecular inhibitor of the Hippo-YAP
pathway. However, little is known about whether verteporfin could inhibit YAP
activity in PDAC cells. Our present results showed that verteporfin suppressed
the proliferation of human PDAC PANC-1 and SW1990 cells by arresting cells at the
G1 phase, and inducing apoptosis in dose- and time-dependent manners. Verteporfin
also inhibited the tumor growth on the PDAC xenograft model. Treatment with
verteporfin led to downregulation of cyclinD1 and cyclinE1, modulation of Bcl-2
family proteins and activation of PARP. In addition, verteporfin exhibited an
inhibitory effect on angiogenesis and vasculogenic mimicry via suppressing Ang2,
MMP2, VE-cadherin, and ?-SMA expression in vitro and in vivo. Mechanism studies
demonstrated that verteporfin impaired YAP and TEAD interaction to suppress the
expression of targeted genes. Our results provide a foundation for repurposing
verteporfin as a promising anti-tumor drug in the treatment of pancreatic cancer
by targeting the Hippo pathway.
|Adaptor Proteins, Signal Transducing/*antagonists & inhibitors/metabolism
[MESH]