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Targeting the ATF4 pathway in cancer therapy
Dean C Singleton1, Adrian L Harris
1University of Oxford, Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, Department of Oncology, Oxford OX3 9DS, UK.
Activating transcription factor 4 (ATF4) is crucial for cancer cell survival under stress. Targeting ATF4 translation or its downstream pathways offers promising therapeutic strategies for cancer treatment resistance.
Area of Science:
- Molecular Biology
- Cancer Biology
- Cellular Stress Response
Background:
- Activating transcription factor 4 (ATF4) is upregulated by various cellular stresses like amino acid depletion, oxidative stress, and ER stress.
- In tumors, ATF4 promotes survival in hypoxic and nutrient-deprived areas by regulating metabolic homeostasis, autophagy, and angiogenesis.
Purpose of the Study:
- To discuss the translational control and physiological roles of ATF4.
- To explore ATF4's role in tumor progression and treatment resistance.
- To present strategies for targeting ATF4.
Main Methods:
- Review of mechanisms governing ATF4 translation.
- Analysis of ATF4's role in tumor microenvironments.
- Description of therapeutic strategies targeting ATF4 and its pathways.
Main Results:
- ATF4 plays a significant role in cancer cell survival and progression under stress.
- Inhibiting ATF4 translation or downstream pathways can overcome treatment resistance.
- Various strategies exist to target ATF4, including inhibiting its transcriptional activity or translation.
Conclusions:
- The study provides insights into developing ATF4 inhibitors.
- Targeting ATF4 presents a viable therapeutic avenue for cancer treatment.
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