Stimuli-responsive ferroptosis for cancer therapy

Area of Science:

• Biomedical Engineering
• Nanotechnology
• Cancer Therapy

Background:

• Ferroptosis is an iron-dependent programmed cell death pathway.
• It presents an alternative to apoptosis-based cancer therapies, overcoming drug resistance.
• Precise control of ferroptosis induction is crucial for therapeutic efficacy.

Purpose of the Study:

• To review recent advances in stimuli-responsive nanocarriers for ferroptosis-based cancer therapy.
• To highlight the use of endogenous and exogenous stimuli for targeted cancer treatment.
• To explore the potential of ferroptosis in treating intractable tumors.

Main Methods:

• Exploiting tumor microenvironment conditions (acidic pH, ROS, hypoxia) as endogenous stimuli.
• Utilizing external energy sources (magnetic fields, ultrasound, light) as exogenous stimuli.
• Designing nanocarriers activated by dual endogenous and/or exogenous stimuli for enhanced control.

Main Results:

• Nanocarriers can be precisely controlled by various stimuli for on-demand ferroptosis induction.
• Endogenous stimuli ensure tumor-specific activation, while exogenous stimuli allow remote controllability.
• Dual stimuli offer maximized spatiotemporal control for customized deep tumor therapy.

Conclusions:

• Stimuli-responsive nanocarriers are key to harnessing ferroptosis for cancer therapy.
• Targeted activation via endogenous and exogenous stimuli enhances therapeutic efficiency.
• Ferroptosis-based strategies hold significant promise for treating difficult-to-treat cancers.