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Published on: June 30, 2023
The role of autophagy in resistance to targeted therapies
Luigi Mele1, Vitale Del Vecchio1, Davide Liccardo1
1Department of Experimental Medicine, University of Campania "L. Vanvitelli" Naples, Italy.
Abstract:
Autophagy is a self-degradative cellular process, involved in stress response such as starvation, hypoxia, and oxidative stress. This mechanism balances macro-molecule recycling to regulate cell homeostasis. In cancer, autophagy play a role in the development and progression, while several studies describe it as one of the key processes in drug resistance. In the last years, in addition to standard anti-cancer treatments such as chemotherapies and irradiation, targeted therapy became one of the most adopted strategies in clinical practices, mainly due to high specificity and reduced side effects. However, similar to standard treatments, drug resistance is the main challenge in most patients. Here, we summarize recent studies that investigated the role of autophagy in drug resistance after targeted therapy in different types of cancers. We highlight positive results and limitations of pre-clinical and clinical studies in which autophagy inhibitors are used in combination with targeted therapies.
Insights
Autophagy, a cellular recycling process, is crucial in cancer drug resistance. Inhibiting autophagy alongside targeted therapies shows promise but requires further research for optimal cancer treatment strategies.
Area of Science:
- Cell Biology
- Oncology
- Pharmacology
Background:
- Autophagy is a cellular degradation process vital for homeostasis and stress response.
- Autophagy significantly contributes to cancer development, progression, and drug resistance.
- Targeted therapies offer specificity but face challenges with drug resistance in cancer patients.
Purpose of the Study:
- To review recent research on autophagy's role in drug resistance following targeted cancer therapy.
- To highlight the efficacy and limitations of combining autophagy inhibitors with targeted treatments.
Main Methods:
- Literature review of pre-clinical and clinical studies.
- Analysis of studies investigating autophagy inhibition in conjunction with targeted cancer therapies.
Main Results:
- Autophagy plays a key role in mediating resistance to targeted cancer therapies.
- Combining autophagy inhibitors with targeted therapies demonstrates potential therapeutic benefits.
- Pre-clinical and clinical studies show varied results, indicating a need for further investigation.
Conclusions:
- Autophagy is a critical factor in overcoming targeted therapy resistance in various cancers.
- Autophagy inhibitors represent a promising strategy for enhancing targeted therapy efficacy.
- Further research is essential to optimize combination therapies involving autophagy inhibition and targeted treatments.
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