Autophagy: an emerging target for cancer therapy

Area of Science:

• Cell Biology
• Molecular Biology
• Cancer Research

Background:

• Macroautophagy (autophagy) is a fundamental cellular process for recycling macromolecules and organelles.
• Autophagy is crucial for maintaining cellular metabolism during starvation and removing damaged components during stress, thereby promoting cell survival.
• Emerging evidence suggests autophagy plays a suppressive role in tumorigenesis, presenting a complex dichotomy.

Purpose of the Study:

• To review current understanding of autophagy's dual role in cell survival and death.
• To highlight alterations in autophagy observed in cancer.
• To discuss autophagy-related signaling pathways as potential targets for cancer therapy.

Main Methods:

• Literature review of recent data on autophagy and cancer.
• Synthesis of knowledge on autophagy-mediated control of cell fate.
• Analysis of cancer-associated changes in autophagy pathways.

Main Results:

• Autophagy generally promotes cell survival but can also contribute to cell death.
• Cancer cells frequently exhibit altered autophagy induction, regulation, and execution.
• Both pro- and anti-autophagic pathways present potential therapeutic targets.

Conclusions:

• Autophagy's role in cancer is multifaceted, acting as both a tumor suppressor and a survival mechanism for cancer cells.
• Understanding the molecular basis of autophagy's complex role is critical for developing novel cancer treatments.
• Targeting autophagy pathways offers promising avenues for future cancer therapy.