Overview of Transgenic Mouse Models for Alzheimer's Disease

Area of Science:

• Neuroscience
• Genetics
• Pharmacology

Background:

• Alzheimer's disease (AD) is a progressive neurodegenerative disorder characterized by amyloid-β plaques and tau tangles.
• Current interventions do not cure, prevent, or slow AD progression.
• Developing accurate animal models for AD is challenging due to its complex etiology and pathology.

Purpose of the Study:

• To review existing transgenic mouse models of Alzheimer's disease.
• To discuss the features, strengths, and limitations of these models.
• To guide the selection of appropriate models for AD research and therapeutic evaluation.

Main Methods:

• Review of nearly 200 transgenic rodent models of AD.
• Analysis of models based on amyloid-β and tau mutations, including familial and sporadic AD forms.
• Evaluation of model features, strengths, limitations, and translational utility.

Main Results:

• No single transgenic model fully recapitulates AD pathology and behavior.
• Models vary in their ability to mimic specific aspects of AD.
• The translational utility of many models for predicting therapeutic success is debated.

Conclusions:

• Understanding the characteristics of different transgenic AD models is crucial for research.
• Careful model selection can enhance the exploration of disease mechanisms and drug efficacy.
• Future model development should consider recent clinical data and trends in AD research.