Related Experiment Video
Updated: Dec 27, 2025

Author Spotlight: Developing Novel Anticancer Therapeutics Targeting the DNA Damage Response
Published on: June 14, 2024
Small Molecule Inhibitors Targeting Key Proteins in the DNA Damage Response for Cancer Therapy
Lulu Li1, Alagamuthu Karthick Kumar1, Zhigang Hu1
1Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, Nanjing 210023, China.
Abstract:
DNA damage response (DDR) is a complicated interactional pathway. Defects that occur in subordinate pathways of the DDR pathway can lead to genomic instability and cancer susceptibility. Abnormal expression of some proteins in DDR, especially in the DNA repair pathway, are associated with the subsistence and resistance of cancer cells. Therefore, the development of small molecule inhibitors targeting the chief proteins in the DDR pathway is an effective strategy for cancer therapy. In this review, we summarize the development of small molecule inhibitors targeting chief proteins in the DDR pathway, particularly focusing on their implications for cancer therapy. We present the action mode of DDR molecule inhibitors in preclinical studies and clinical cancer therapy, including monotherapy and combination therapy with chemotherapeutic drugs or checkpoint suppression therapy.
Insights
Targeting DNA damage response (DDR) proteins with small molecule inhibitors offers a promising cancer therapy strategy. This review details DDR inhibitors
Area of Science:
- Molecular Biology
- Oncology
- Pharmacology
Background:
- The DNA damage response (DDR) pathway is crucial for maintaining genomic stability.
- Defects in DDR pathways can lead to cancer susceptibility and resistance.
- Aberrant protein expression within DDR, particularly DNA repair, is linked to cancer cell survival.
Purpose of the Study:
- To review the development of small molecule inhibitors targeting key DDR proteins.
- To explore the therapeutic implications of these inhibitors in cancer treatment.
- To summarize their mechanisms of action in preclinical and clinical settings.
Main Methods:
- Literature review of small molecule inhibitors targeting DDR proteins.
- Analysis of preclinical studies on DDR inhibitor efficacy.
- Examination of clinical trial data for DDR inhibitors in monotherapy and combination treatments.
Main Results:
- Small molecule inhibitors targeting DDR proteins show significant therapeutic potential.
- These inhibitors can be used as monotherapy or in combination with chemotherapy or checkpoint inhibitors.
- Understanding the action mode of DDR inhibitors is key to optimizing cancer therapy.
Conclusions:
- Targeting DDR proteins with small molecule inhibitors is an effective cancer therapeutic strategy.
- Further research into DDR inhibitors can lead to novel cancer treatments.
- Combination therapies involving DDR inhibitors demonstrate promise for overcoming cancer resistance.
Related Concept Videos
Targeted Cancer Therapies
There are several types of targeted therapies against...
DNA Damage Can Stall the Cell Cycle
DNA Damage can Stall the Cell Cycle
Inhibition of Cdk Activity
Treatment Resistant Cancers
Negative Regulator Molecules

