Enzymes in Addressing Hypoxia for Biomaterials Engineering.

Area of Science:

• Biomedical Engineering
• Enzyme Catalysis
• Nanotechnology

Background:

• Hypoxia (low oxygen) is a critical factor in numerous diseases, including cancer and cardiovascular disorders.
• Hypoxia-inducible factors (HIFs) mediate cellular responses to hypoxia, influencing metabolism, growth, and immune responses.
• Enzymatic decomposition of hydrogen peroxide offers a strategy to generate oxygen and alleviate hypoxia.

Purpose of the Study:

• To critically compare methods for enhancing catalase stability in vivo.
• To review the structure, mechanism, and kinetics of catalase and catalase-like nanozymes.
• To assess the potential of enzyme-based oxygen generation for biomedical applications.

Main Methods:

• Literature review of current approaches for in vivo enzyme stabilization.
• Comparative analysis of catalase and nanozyme properties.
• Examination of enzyme kinetics and mechanisms of action.

Main Results:

• Enzyme instability, particularly for catalase, limits in vivo efficacy.
• Targeted delivery systems show promise for improving enzyme stability and therapeutic outcomes.
• Catalase-like nanozymes offer potential alternatives with enhanced stability and tunable properties.

Conclusions:

• Enhanced in vivo stability is crucial for therapeutic enzyme applications.
• Nanozymes present a promising avenue for overcoming limitations of natural enzymes like catalase.
• Further research into enzyme stabilization and nanozyme development is warranted for hypoxia-related disease treatment.