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- Title
Harnessing DNA Replication Stress for Novel Cancer Therapy.
- Authors
Zhu, Huanbo; Swami, Umang; Preet, Ranjan; Zhang, Jun
- Abstract
DNA replication is the fundamental process for accurate duplication and transfer of genetic information. Its fidelity is under constant stress from endogenous and exogenous factors which can cause perturbations that lead to DNA damage and defective replication. This can compromise genomic stability and integrity. Genomic instability is considered as one of the hallmarks of cancer. In normal cells, various checkpoints could either activate DNA repair or induce cell death/senescence. Cancer cells on the other hand potentiate DNA replicative stress, due to defective DNA damage repair mechanism and unchecked growth signaling. Though replicative stress can lead to mutagenesis and tumorigenesis, it can be harnessed paradoxically for cancer treatment. Herein, we review the mechanism and rationale to exploit replication stress for cancer therapy. We discuss both established and new approaches targeting DNA replication stress including chemotherapy, radiation, and small molecule inhibitors targeting pathways including ATR, Chk1, PARP, WEE1, MELK, NAE, TLK etc. Finally, we review combination treatments, biomarkers, and we suggest potential novel methods to target DNA replication stress to treat cancer.
- Subjects
DNA replication; CANCER treatment; DNA repair; SMALL molecules; POLY(ADP-ribose) polymerase; DNA damage
- Publication
Genes, 2020, Vol 11, Issue 9, p990
- ISSN
2073-4425
- Publication type
Article
- DOI
10.3390/genes11090990