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Published on: June 30, 2023
Therapeutic targeting of autophagy in cancer. Part I: molecular pathways controlling autophagy
Anika Nagelkerke1, Fred C G J Sweep2, Anneke Geurts-Moespot2
1Department of Laboratory Medicine, Radboud University Medical Center, PO Box 9101, 6500 HB Nijmegen, The Netherlands; Department of Radiation Oncology, Radboud University Medical Center, PO Box 9101, 6500 HB Nijmegen, The Netherlands.
Abstract:
Autophagy is a process in which cells can generate energy and building materials, by degradation of redundant and/or damaged organelles and proteins. Especially during conditions of stress, autophagy helps to maintain homeostasis. In addition, autophagy has been shown to influence malignant transformation and cancer progression. The precise molecular events in autophagy are complex and the core autophagic machinery described to date consists of nearly thirty proteins. Apart from these factors that execute the process of autophagy, several signalling pathways are involved in converting internal and external stimuli into an autophagic response. In this review we provide an overview of the signalling pathways that influence autophagy, particularly in cancer cells. We will illustrate that interference with multiple of these signalling pathways can have significant effects on cancer cell survival.
Insights
Autophagy, a cellular process for recycling damaged components, plays a key role in maintaining cell balance and influencing cancer progression. Understanding its signaling pathways is crucial for cancer cell survival strategies.
Area of Science:
- Cell Biology
- Molecular Biology
- Oncology
Background:
- Autophagy is a fundamental cellular process for degrading damaged organelles and proteins, essential for maintaining cellular homeostasis, especially under stress.
- Autophagy significantly impacts malignant transformation and cancer progression, highlighting its complex role in cancer biology.
- The core autophagic machinery involves approximately thirty proteins, with numerous signaling pathways modulating its response to internal and external stimuli.
Purpose of the Study:
- To provide a comprehensive overview of signaling pathways that regulate autophagy.
- To specifically focus on how these signaling pathways influence autophagy within cancer cells.
- To demonstrate the potential of targeting these pathways to affect cancer cell survival.
Main Methods:
- Literature review of signaling pathways influencing autophagy.
- Analysis of the role of autophagy in cancer cell transformation and progression.
- Examination of the impact of modulating signaling pathways on cancer cell survival.
Main Results:
- Autophagy is a complex process influenced by multiple signaling pathways.
- These signaling pathways are critical in modulating autophagy's role in cancer.
- Interference with specific signaling pathways can significantly impact cancer cell survival.
Conclusions:
- Signaling pathways are integral regulators of autophagy, particularly in the context of cancer.
- Targeting these autophagy-regulating signaling pathways presents a promising therapeutic strategy in oncology.
- Further research into these pathways could lead to novel cancer treatments.
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