Murine Non-Transgenic Models of Alzheimer's Disease Pathology: Focus on Risk Factors

Area of Science:

• Neuroscience
• Pathology
• Pharmacology

Background:

• Alzheimer's disease (AD) is a major neurodegenerative disorder with unmet therapeutic needs.
• Current AD research heavily relies on amyloid-β (Aβ) transgenic models, with limited therapeutic success.
• Key AD pathologies include Aβ plaques, neurofibrillary tangles, and neuroinflammation.

Purpose of the Study:

• To critically review non-transgenic models for Alzheimer's disease research.
• To assess the utility of models induced by agents like streptozotocin, scopolamine, aging, metals, and diet.
• To enhance the application of these models in evaluating therapeutic interventions for AD.

Main Methods:

• Literature review of existing studies on Alzheimer's disease non-transgenic models.
• Analysis of models induced by specific agents (streptozotocin, scopolamine, metals, etc.) and conditions (aging, mechanical stress, diet).
• Evaluation of how these models mimic AD pathology and risk factors.

Main Results:

• Non-transgenic models offer complementary insights into AD's complex pathology beyond Aβ-centric views.
• Models induced by various factors can recapitulate key AD features like neuroinflammation and cognitive deficits.
• These models are valuable for assessing interventions targeting primary AD risk factors.

Conclusions:

• Non-transgenic models are practical tools for Alzheimer's disease research and therapeutic strategy evaluation.
• Expanding the use of these diverse models can accelerate the development of effective AD treatments.
• Further research into induced non-transgenic models can improve preclinical AD drug discovery.