[HTML][HTML] Targeting radioresistant breast cancer cells by single agent CHK1 inhibitor via enhancing replication stress

Y Zhang, J Lai, Z Du, J Gao, S Yang, S Gorityala… - Oncotarget, 2016 - ncbi.nlm.nih.gov
Radiotherapy (RT) remains a standard therapeutic modality for breast cancer patients.
However, intrinsic or acquired resistance limits the efficacy of RT. Here, we demonstrate that …

Silencing CDK4 radiosensitizes breast cancer cells by promoting apoptosis

KR Hagen, X Zeng, MY Lee, S Tucker Kahn… - Cell division, 2013 - Springer
Background The discovery of molecular markers associated with various breast cancer
subtypes has greatly improved the treatment and outcome of breast cancer patients …

The Chk1 inhibitor AZD7762 sensitises p53 mutant breast cancer cells to radiation in vitro and in vivo

Z Ma, G Yao, B Zhou, Y Fan… - Molecular medicine …, 2012 - spandidos-publications.com
AZD7762, a novel checkpoint kinase 1 (Chk 1) inhibitor, has been proven to sensitize
various tumor cells to DNA damage. However, whether or not AZD7762 sensitizes breast …

Increased activity of CHK enhances the radioresistance of MCF-7 breast cancer stem cells

ZX Yang, YH Sun, JG He, H Cao… - Oncology …, 2015 - spandidos-publications.com
The resistance of breast cancer to radiotherapy remains a major obstacle to successful
cancer management. Radiotherapy may result in DNA damage and activate breast cancer …

Replication stress response in cancer stem cells as a target for chemotherapy

G Manic, A Sistigu, F Corradi, M Musella… - Seminars in cancer …, 2018 - Elsevier
Cancer stem cells (CSCs) are subpopulations of multipotent stem cells (SCs) responsible for
the initiation, long-term clonal maintenance, growth and spreading of most human …

[HTML][HTML] Targeting ATR and Chk1 kinases for cancer treatment: a new model for new (and old) drugs

LI Toledo, M Murga, O Fernandez-Capetillo - Molecular oncology, 2011 - Elsevier
Trying to kill cancer cells by generating DNA damage is by no means a new idea.
Radiotherapy and genotoxic drugs are routinely used in cancer therapy. More recent …

[HTML][HTML] Chk1 phosphorylated at serine345 is a predictor of early local recurrence and radio-resistance in breast cancer

N Alsubhi, F Middleton, TMA Abdel-Fatah… - Molecular Oncology, 2016 - Elsevier
Radiation-induced DNA damage activates the DNA damage response (DDR). DDR up-
regulation may predict radio-resistance and increase the risk of early local recurrence …

Chk1 is essential for tumor cell viability following activation of the replication checkpoint

SH Cho, CD Toouli, GH Fujii, C Crain, D Parry - Cell cycle, 2005 - Taylor & Francis
Chk1 (checkpoint kinase 1) is an evolutionarily conserved serine/threonine kinase involved
in DNA damage responses. Originally identified as a kinase regulating the G2/M transition …

Prevention of DNA replication stress by CHK1 leads to chemoresistance despite a DNA repair defect in homologous recombination in breast cancer

F Meyer, S Becker, S Classen, AC Parplys… - Cells, 2020 - mdpi.com
Chromosomal instability not only has a negative effect on survival in triple-negative breast
cancer, but also on the well treatable subgroup of luminal A tumors. This suggests a general …

A synthetic lethal dependency on casein kinase 2 in response to replication-perturbing therapeutics in RB1-deficient cancer cells

D Bulanova, Y Akimov, W Senkowski, J Oikkonen… - Science …, 2024 - science.org
Resistance to therapy commonly develops in patients with high-grade serous ovarian
carcinoma (HGSC) and triple-negative breast cancer (TNBC), urging the search for …