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Targeting DNA repair pathways: a novel approach to reduce cancer therapeutic resistance
Yongjian Zhu1, Jue Hu, Yiduo Hu
1Department of Neurosurgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China. yongjian_zhu@zju.edu.cn
Abstract:
Increased chemo-resistance and radio-resistance of cancer cells is a major obstacle in the treatment and management of malignant cancers. An important mechanism that underlies the development of such therapeutic resistance is that cancer cells recognize DNA lesions induced by DNA-damaging agents and by ionizing radiation, and repair these lesions by activating various DNA repair pathways. Therefore, Use of pharmacological agents that can inhibit certain DNA repair pathways in cancer cells has the potential for enhancing the targeted cytotoxicity of anticancer treatments and reversing the associated therapeutic resistance associated with DNA repair; such agents, offering a promising opportunity to achieve better therapeutic efficacy. Here we review the major DNA repair pathways and discuss recent advances in the development of novel inhibitors of DNA repair pathways; many of these agents are under preclinical/clinical investigation.
Insights
Targeting cancer cell DNA repair pathways can overcome chemo-resistance and radio-resistance. Inhibiting these repair mechanisms with novel pharmacological agents offers a promising strategy to enhance anticancer treatment efficacy and reverse therapeutic resistance.
Area of Science:
- Oncology
- Molecular Biology
- Pharmacology
Background:
- Therapeutic resistance to chemotherapy and radiotherapy is a significant challenge in cancer treatment.
- Cancer cells employ DNA repair pathways to mend damage induced by anticancer agents and radiation, contributing to resistance.
- Understanding these DNA repair mechanisms is crucial for developing more effective cancer therapies.
Purpose of the Study:
- To review major DNA repair pathways involved in cancer therapeutic resistance.
- To discuss recent advancements in developing inhibitors for these DNA repair pathways.
- To highlight the potential of DNA repair inhibitors in enhancing anticancer treatment efficacy.
Main Methods:
- Literature review of DNA repair pathways in cancer.
- Analysis of recent preclinical and clinical investigations on DNA repair inhibitors.
- Discussion of pharmacological strategies to target DNA repair mechanisms.
Main Results:
- Several major DNA repair pathways contribute to cancer cell resistance.
- Novel pharmacological inhibitors targeting these pathways are under active development.
- These inhibitors show promise in preclinical and clinical settings.
Conclusions:
- Inhibiting DNA repair pathways is a viable strategy to overcome chemo-resistance and radio-resistance.
- Pharmacological agents targeting DNA repair offer a promising avenue for improving cancer treatment outcomes.
- Further research and clinical investigation of DNA repair inhibitors are warranted.
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