Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/61582
Title: PI3K p110β isoform synergizes with JNK in the regulation of glioblastoma cell proliferation and migration through AKT and FAK inhibition
Authors: Zhao, HF
Wang, J
Jiang, HR
Chen, ZP
To, SST 
Keywords: Glioblastoma
JNK
Migration
P110β
PI3K
Proliferation
Synergism
Issue Date: 2016
Publisher: BioMed Central
Source: Journal of experimental and clinical cancer research, 2016, v. 35, no. 1, 78 How to cite?
Journal: Journal of experimental and clinical cancer research 
Abstract: Background: Glioblastoma multiforme is the most aggressive malignant primary brain tumor, characterized by rapid growth and extensive infiltration to neighboring normal brain parenchyma. Both PI3K/Akt and JNK pathways are essential to glioblastoma cell survival, migration and invasion. Due to their hyperactivation in glioblastoma cells, PI3K and JNK are promising targets for glioblastoma treatment.
Methods: To investigate the combination effects of class IA PI3K catalytic isoforms (p110α, p110β and p110δ) and JNK inhibition on tumor cell growth and motility, glioblastoma cells and xenografts in nude mice were treated with isoform-selective PI3K inhibitors in combination with JNK inhibitor.
Results: We showed that combined inhibition of these PI3K isoforms and JNK exerted divergent effects on the proliferation, migration and invasion of glioblastoma cells in vitro. Pharmacological inhibition of p110β or p110δ, but not p110α, displayed synergistic inhibitory effect with JNK inhibition on glioblastoma cell proliferation and migration through decreasing phosphorylation of Akt, FAK and zyxin, leading to blockade of lamellipodia and membrane ruffles formation. No synergistic effect on invasion was observed in all the combination treatment. In vivo, combination of p110β and JNK inhibitors significantly reduced xenograft tumor growth compared with single inhibitor alone.
Conclusion: Concurrent inhibition of p110β and JNK exhibited synergistic effects on suppressing glioblastoma cell proliferation and migration in vitro and xenograft tumor growth in vivo. Our data suggest that combined inhibition of PI3K p110β isoform and JNK may serve as a potent and promising therapeutic approach for glioblastoma multiforme.
URI: http://hdl.handle.net/10397/61582
EISSN: 1756-9966
DOI: 10.1186/s13046-016-0356-5
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

8
Last Week
0
Last month
Citations as of Feb 19, 2018

WEB OF SCIENCETM
Citations

7
Last Week
0
Last month
Citations as of Feb 21, 2018

Page view(s)

30
Last Week
0
Last month
Citations as of Feb 19, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.