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Updated: Jan 19, 2026

Author Spotlight: Developing Novel Anticancer Therapeutics Targeting the DNA Damage Response
Published on: June 14, 2024
DNA double-strand break formation and repair as targets for novel antibiotic combination chemotherapy
Vincent Amarh1, Patrick K Arthur1
1Department of Biochemistry, Cell & Molecular Biology, West African Center for Cell Biology of Infectious Pathogens, University of Ghana, PO Box LG54, Legon, Accra, Ghana.
Abstract:
An unrepaired DNA double-strand break (DSB) is lethal to cells. In bacteria, DSBs are usually repaired either via an error-prone pathway, which ligates the ends of the break or an accurate recombination pathway. Due to this lethality, drugs that induce persistent DSBs have been successful in bacterial infection treatment. However, recurrent usage of these drugs has led to emergence of resistant strains. Several articles have thoroughly reviewed the causes, mechanisms and effects of bacterial drug resistance while others have also discussed approaches for facilitating drug discovery and development. Here, we focus on a hypothetical chemotherapeutic strategy that can be explored for minimizing development of resistance to novel DSB-inducing compounds. We also highlight the possibility of utilizing bacterial DSB repair pathways as targets for the discovery and development of novel antibiotics.
Insights
Persistent DNA double-strand breaks (DSBs) are lethal to bacteria. This study explores novel strategies to combat antibiotic resistance by targeting bacterial DSB repair pathways and developing new DSB-inducing compounds.
Area of Science:
- Microbiology
- Molecular Biology
- Drug Discovery
Background:
- Unrepaired DNA double-strand breaks (DSBs) are lethal to bacterial cells.
- Current antibiotics inducing DSBs face resistance due to recurrent usage.
- Existing literature covers bacterial drug resistance mechanisms and drug discovery approaches.
Purpose of the Study:
- To propose a hypothetical chemotherapeutic strategy to minimize resistance to novel DSB-inducing compounds.
- To explore bacterial DSB repair pathways as potential targets for new antibiotic development.
Main Methods:
- Focus on theoretical chemotherapeutic strategies.
- Highlighting potential therapeutic targets within bacterial DSB repair mechanisms.
Main Results:
- A hypothetical strategy for minimizing resistance to DSB-inducing agents is presented.
- Bacterial DSB repair pathways are identified as promising targets for novel antibiotic discovery.
Conclusions:
- Targeting bacterial DSB repair pathways offers a novel avenue for antibiotic development.
- Minimizing resistance to DSB-inducing drugs is crucial for effective bacterial infection treatment.
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