Autophagy and oxidative stress in solid tumors: Mechanisms and therapeutic opportunities

Area of Science:

• Oncology
• Cellular Biology
• Biochemistry

Background:

• Cancer is a major global health issue, with solid tumors being the most common type.
• Autophagy and oxidative stress are critical cellular mechanisms influencing cancer development and response to treatment.
• These processes have dual roles, acting as tumor suppressors or promoters depending on the context.

Purpose of the Study:

• To review the intricate relationship between autophagy and oxidative stress in solid tumors.
• To highlight the implications of this crosstalk for tumor progression and therapeutic strategies.
• To explore potential novel therapeutic approaches targeting these pathways.

Main Methods:

• Literature review of studies on autophagy, oxidative stress, and solid tumors.
• Analysis of the interconnected roles of these mechanisms in tumorigenesis and treatment resistance.
• Examination of pharmacological targeting strategies and their associated challenges.

Main Results:

• Autophagy and oxidative stress (ROS imbalance) have context-dependent roles in cancer, influencing initiation, progression, and survival.
• Their crosstalk impacts the tumor microenvironment, affecting immune evasion, drug resistance, and metabolic adaptation.
• Targeting these pathways offers therapeutic opportunities but also presents challenges like potential systemic toxicity.

Conclusions:

• The interplay between autophagy and oxidative stress is crucial in solid tumors, impacting various aspects of cancer biology.
• Understanding these mechanisms is vital for developing innovative cancer therapies, including combination and precision medicine approaches.
• Further research into modulating autophagy and oxidative stress could lead to improved patient outcomes in cancer treatment.