Antioxidant Natural Compounds Integrated with Targeted Protein Degradation: A Multi-Modal Strategy for Alzheimer's...

Area of Science:

• Neuroscience
• Pharmacology
• Biochemistry

Background:

• Alzheimer's disease (AD) is a progressive neurodegenerative disorder characterized by protein aggregation, oxidative stress, and neuroinflammation, leading to cognitive decline.
• Current AD therapies offer symptomatic relief, underscoring the need for multi-target strategies to modify disease progression.

Purpose of the Study:

• To explore the synergistic potential of combining natural antioxidants with proteolysis-targeting chimeras (PROTACs) for Alzheimer's disease treatment.
• To investigate the "Antiox-PROTAC" approach for simultaneous mitigation of oxidative stress and degradation of neurotoxic proteins in AD.

Main Methods:

• Leveraging natural compounds (flavonoids, polyphenols, etc.) for their antioxidant properties and potential use in PROTAC design.
• Utilizing PROTACs to selectively degrade pathological proteins like hyperphosphorylated tau and amyloid-beta via the ubiquitin-proteasome system.

Main Results:

• Natural antioxidants reduce oxidative stress, activate Nrf2 pathways, restore mitochondrial function, and suppress neuroinflammation.
• PROTACs demonstrate selective degradation of key AD-associated proteins.
• Preclinical data suggest synergistic neuroprotective effects of the integrated Antiox-PROTAC approach.

Conclusions:

• The Antiox-PROTAC paradigm offers a novel, multi-modal therapeutic framework for Alzheimer's disease.
• This approach has the potential to modify disease progression and improve cognitive outcomes by addressing both oxidative stress and protein aggregation.
• Further research is needed to overcome translational challenges like blood-brain barrier penetration and optimize delivery for clinical application.