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Enhancing Anti-Cancer Therapy with Selective Autophagy Inhibitors by Targeting Protective Autophagy
Min Ju Lee1,2, Jae-Sung Park3, Seong Bin Jo1,2
1Department of Medical Lifescience, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea.
Abstract:
Autophagy is a process of eliminating damaged or unnecessary proteins and organelles, thereby maintaining intracellular homeostasis. Deregulation of autophagy is associated with several diseases including cancer. Contradictory dual roles of autophagy have been well established in cancer. Cytoprotective mechanism of autophagy has been extensively investigated for overcoming resistance to cancer therapies including radiotherapy, targeted therapy, immunotherapy, and chemotherapy. Selective autophagy inhibitors that directly target autophagic process have been developed for cancer treatment. Efficacies of autophagy inhibitors have been tested in various pre-clinical cancer animal models. Combination therapies of autophagy inhibitors with chemotherapeutics are being evaluated in clinal trials. In this review, we will focus on genetical and pharmacological perturbations of autophagy-related proteins in different steps of autophagic process and their therapeutic benefits. We will also summarize combination therapies of autophagy inhibitors with chemotherapies and their outcomes in pre-clinical and clinical studies. Understanding of current knowledge of development, progress, and application of cytoprotective autophagy inhibitors in combination therapies will open new possibilities for overcoming drug resistance and improving clinical outcomes.
Insights
Autophagy, a cellular cleanup process, plays a dual role in cancer. Inhibiting autophagy shows promise in overcoming cancer treatment resistance, especially when combined with chemotherapy.
Area of Science:
- Cell Biology
- Oncology
- Pharmacology
Background:
- Autophagy is a vital cellular process for maintaining homeostasis by degrading damaged components.
- Dysregulated autophagy is implicated in various diseases, notably cancer, where it exhibits complex, dual roles.
- The cytoprotective functions of autophagy are crucial for resistance to diverse cancer therapies.
Purpose of the Study:
- To review the genetic and pharmacological modulation of autophagy-related proteins in cancer.
- To explore the therapeutic benefits of targeting autophagy in cancer treatment.
- To summarize the efficacy of combining autophagy inhibitors with chemotherapeutics in preclinical and clinical settings.
Main Methods:
- Review of literature on genetic and pharmacological perturbations of autophagy-related proteins.
- Analysis of preclinical data from cancer animal models evaluating autophagy inhibitors.
- Examination of clinical trial data for combination therapies involving autophagy inhibitors and chemotherapeutics.
Main Results:
- Autophagy inhibitors are being developed to target the autophagic process directly for cancer treatment.
- Preclinical studies demonstrate the efficacy of autophagy inhibitors in various cancer models.
- Combination therapies of autophagy inhibitors with chemotherapeutics are under active clinical investigation.
Conclusions:
- Targeting autophagy offers a promising strategy to overcome resistance to cancer therapies.
- Combination therapies with autophagy inhibitors and chemotherapeutics hold potential for improving clinical outcomes.
- Further understanding of cytoprotective autophagy inhibitors can enhance cancer treatment efficacy and overcome drug resistance.
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