Metabolic Adaptation-Mediated Cancer Survival and Progression in Oxidative Stress

Area of Science:

• Oncology
• Metabolic pathways
• Cellular stress response

Background:

• Elevated reactive oxygen species (ROS) levels are common in cancer evolution, driven by therapies and immune responses.
• High ROS can induce cancer cell death by disrupting glycolysis and oxidative phosphorylation (OXPHOS).
• Cancer cells exhibit metabolic reprogramming to survive oxidative and metabolic stress, leading to residual disease and relapse.

Purpose of the Study:

• To summarize mechanisms of metabolic regulation in cancer cell adaptation to oxidative stress.
• To review the role of metabolic adaptations in cancer survival and progression.
• To highlight opportunities for therapeutic intervention by manipulating cancer cell metabolism.

Main Methods:

• Literature review of studies on cancer cell metabolism and oxidative stress.
• Analysis of metabolic reprogramming strategies employed by cancer cells.
• Synthesis of current understanding of ROS-scavenging pathways (NADPH, GSH) and metabolic shifts (lipolysis, glutaminolysis).

Main Results:

• Cancer cells adapt to ROS-induced metabolic disruption through reprogramming.
• Key adaptations include NADPH and GSH synthesis for ROS scavenging.
• Upregulation of lipolysis and glutaminolysis supports OXPHOS and biosynthesis, fueling cancer progression.

Conclusions:

• Metabolic reprogramming is crucial for cancer cell survival under oxidative stress.
• Understanding these adaptive mechanisms offers therapeutic targets for cancer prevention and treatment.
• Further research into the underlying mechanisms can guide novel anti-cancer strategies.