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Author Spotlight: Developing Novel Anticancer Therapeutics Targeting the DNA Damage Response
Published on: June 14, 2024
Novel Therapeutic Approaches with DNA Damage Response Inhibitors for Melanoma Treatment
Luisa Maresca1, Barbara Stecca1, Laura Carrassa2
1Tumor Cell Biology Unit, Core Research Laboratory, Institute for Cancer Research and Prevention (ISPRO), Viale Gaetano Pieraccini 6, 50139 Florence, Italy.
Abstract:
Targeted therapies against components of the mitogen-activated protein kinase (MAPK) pathway and immunotherapies, which block immune checkpoints, have shown important clinical benefits in melanoma patients. However, most patients develop resistance, with consequent disease relapse. Therefore, there is a need to identify novel therapeutic approaches for patients who are resistant or do not respond to the current targeted and immune therapies. Melanoma is characterized by homologous recombination (HR) and DNA damage response (DDR) gene mutations and by high replicative stress, which increase the endogenous DNA damage, leading to the activation of DDR. In this review, we will discuss the current experimental evidence on how DDR can be exploited therapeutically in melanoma. Specifically, we will focus on PARP, ATM, CHK1, WEE1 and ATR inhibitors, for which preclinical data as single agents, taking advantage of synthetic lethal interactions, and in combination with chemo-targeted-immunotherapy, have been growing in melanoma, encouraging the ongoing clinical trials. The overviewed data are suggestive of considering DDR inhibitors as a valid therapeutic approach, which may positively impact the future of melanoma treatment.
Insights
New melanoma treatments targeting DNA damage response (DDR) show promise for patients resistant to current therapies. Inhibitors of DDR pathways offer a potential new strategy to overcome treatment resistance and improve outcomes in melanoma.
Area of Science:
- Oncology
- Cancer Biology
- Genetics
Background:
- Melanoma treatments like targeted therapies (MAPK pathway) and immunotherapies offer clinical benefits but often face patient resistance and disease relapse.
- Melanoma exhibits mutations in homologous recombination (HR) and DNA damage response (DDR) genes, alongside high replicative stress, leading to increased endogenous DNA damage and DDR activation.
Purpose of the Study:
- To review the therapeutic potential of exploiting DNA damage response (DDR) pathways in melanoma.
- To focus on specific DDR inhibitors (PARP, ATM, CHK1, WEE1, ATR) and their application in melanoma treatment.
Main Methods:
- Review of current experimental evidence on DDR in melanoma.
- Analysis of preclinical data for DDR inhibitors as single agents and in combination therapies.
- Examination of synthetic lethal interactions involving DDR pathways.
Main Results:
- Preclinical data demonstrate the growing efficacy of DDR inhibitors in melanoma, both as monotherapies and in combination with chemo-targeted-immunotherapy.
- Synthetic lethal interactions are being explored to enhance the effectiveness of DDR inhibitors.
Conclusions:
- Exploiting DDR pathways presents a promising therapeutic avenue for melanoma treatment.
- DDR inhibitors, supported by preclinical and ongoing clinical data, may significantly impact the future of melanoma therapy, especially for resistant cases.
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