Characterizing and Targeting Replication Stress Response Defects in Breast Cancer

2014 ◽  
Author(s):  
Shiaw-Yih Lin ◽  
Chun-Jen Lin ◽  
Lili Gong ◽  
Hui Dai ◽  
Ju-Seog Lee
2012 ◽  
Author(s):  
Shiaw-Yih Lin ◽  
Chun-Jen Lin ◽  
Edward Wang ◽  
Hui Dai ◽  
Ju-Seog Lee ◽  
...  

2021 ◽  
Vol 22 (11) ◽  
pp. 5782
Author(s):  
Ashwini Makhale ◽  
Devathri Nanayakkara ◽  
Prahlad Raninga ◽  
Kum Kum Khanna ◽  
Murugan Kalimutho

Triple-negative breast cancer (TNBC) is an aggressive subtype of breast cancer lacking targeted therapy. Here, we evaluated the anti-cancer activity of APR-246, a P53 activator, and CX-5461, a RNA polymerase I inhibitor, in the treatment of TNBC cells. We tested the efficacy of individual and combination therapy of CX-5461 and APR-246 in vitro, using a panel of breast cancer cell lines. Using publicly available breast cancer datasets, we found that components of RNA Pol I are predominately upregulated in basal-like breast cancer, compared to other subtypes, and this upregulation is associated with poor overall and relapse-free survival. Notably, we found that the treatment of breast cancer cells lines with CX-5461 significantly hampered cell proliferation and synergistically enhanced the efficacy of APR-246. The combination treatment significantly induced apoptosis that is associated with cleaved PARP and Caspase 3 along with Annexin V positivity. Likewise, we also found that combination treatment significantly induced DNA damage and replication stress in these cells. Our data provide a novel combination strategy by utilizing APR-246 in combination CX-5461 in killing TNBC cells that can be further developed into more effective therapy in TNBC therapeutic armamentarium.


2020 ◽  
Author(s):  
Takahiko Murayama ◽  
Yasuto Takeuchi ◽  
Kaoru Yamawaki ◽  
Toyoaki Natsume ◽  
Li Mengjiao ◽  
...  

2016 ◽  
Vol 26 (24) ◽  
pp. 3257-3268 ◽  
Author(s):  
Yuan-Cho Lee ◽  
Qing Zhou ◽  
Junjie Chen ◽  
Jingsong Yuan

2017 ◽  
Vol 4 (6) ◽  
pp. e1360978 ◽  
Author(s):  
Xiaolei Pan ◽  
Naveed Ahmed ◽  
Joyce Kong ◽  
Dong Zhang

2021 ◽  
Author(s):  
D McGrail ◽  
P Pilié ◽  
XHF Zhang ◽  
J Rosen ◽  
L Voorwerk ◽  
...  

2017 ◽  
Vol 45 (20) ◽  
pp. 11837-11857 ◽  
Author(s):  
Elizabeth L. Thompson ◽  
Jung E. Yeo ◽  
Eun-A Lee ◽  
Yinan Kan ◽  
Maya Raghunandan ◽  
...  

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