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Published on: August 25, 2021
Targeting the Ataxia Telangiectasia Mutated Protein in Cancer Therapy
Donatella Vecchio, Guido Frosina1
1IRCCS AOU San Martino - IST, Mutagenesis Unit, Largo Rosanna Benzi 10, 16132 Genova, Italy. guido.frosina@hsanmartino.it.
Abstract:
Genotoxic anticancer drugs explicate their effects damaging DNA, thus triggering a coordinated signal-transduction network called DNA Damage Response (DDR). Ataxia Telangiectasia Mutated (ATM) protein plays a central role in this response: activated by DNA damage, ATM phosphorylates itself and downstream effectors that arrest cell cycle allowing for DNA repair or, should DNA damage be too severe and not retrievable, inducing apoptosis. ATM is a worth-investigating target for tumor radio- and chemosensitization. During last years, pharmaceutical industries and research laboratories have developed a series of small molecules, capable to inhibit ATM with increasing specificity. Several preclinical studies have demonstrated that these inhibitors alone or in association with other treatments may improve therapeutic outcomes. In this review we discuss ATM inhibitors so far developed, focussing on recent acquisitions on their potential antineoplastic usefulness.
Insights
This review explores ATM inhibitors, which target DNA damage response pathways in cancer. These inhibitors show promise for improving cancer therapy outcomes when used alone or with other treatments.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Genotoxic anticancer drugs induce DNA damage, activating the DNA Damage Response (DDR) network.
- Ataxia Telangiectasia Mutated (ATM) protein is a key regulator of DDR, controlling cell cycle arrest, DNA repair, and apoptosis.
- ATM is a significant target for enhancing tumor radio- and chemosensitization.
Purpose of the Study:
- To review ATM inhibitors developed for cancer therapy.
- To discuss recent findings on the antineoplastic potential of ATM inhibitors.
Main Methods:
- Literature review of preclinical studies on ATM inhibitors.
- Analysis of small molecules developed to inhibit ATM specificity.
- Evaluation of ATM inhibitors' efficacy alone and in combination therapies.
Main Results:
- Development of specific small molecule ATM inhibitors by pharmaceutical industries and research labs.
- Preclinical evidence suggests ATM inhibitors can improve therapeutic outcomes.
- ATM inhibitors demonstrate potential in enhancing cancer treatment efficacy.
Conclusions:
- ATM inhibitors are a promising therapeutic strategy in oncology.
- Further research into ATM inhibitors may lead to improved cancer treatment protocols.
- Targeting ATM offers a viable approach for overcoming resistance and enhancing existing cancer therapies.
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