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CADASIL: experimental insights from animal models.

¹Neurovascular Research Laboratory, Department of Radiology, and Stroke Service and Neuroscience Intensive Care Unit, Massachusetts General Hospital, Harvard Medical School, Boston, Mass 02129, USA. cayata@partners.org

|September 30, 2010

Summary

Cerebral Autosomal Dominant Arteriopathy with Subcortical Infarcts and Leukoencephalopathy (CADASIL) is a genetic small vessel disease. Animal models help investigate NOTCH3 gene mutations and CADASIL mechanisms.

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Area of Science:

Neurology
Genetics
Vascular Biology

Background:

Cerebral Autosomal Dominant Arteriopathy with Subcortical Infarcts and Leukoencephalopathy (CADASIL) is the most common monogenic inherited small vessel disease.
It presents with migraines, strokes, and progressive white matter degeneration, leading to subcortical dementia.
Pathology involves NOTCH3 gene mutations, granular osmiophilic material accumulation, and vascular smooth muscle cell loss.

Purpose of the Study:

To provide an overview of existing animal models for CADASIL.
To explore pathophysiological insights gained from these models.
To investigate the role of NOTCH3 gene mutations in CADASIL.

Main Methods:

Review of existing literature on CADASIL animal models.

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Analysis of pathological and physiological data from experimental models.

Comparison of findings across different species and genetic constructs.

Main Results:

Animal models replicate CADASIL pathology and cerebrovascular dysfunction.
Phenotypic heterogeneity observed in models, potentially due to genetic constructs and species differences.
Models offer opportunities to study molecular and physiological mechanisms of CADASIL.

Conclusions:

Animal models are valuable tools for understanding CADASIL.
Further research is needed to elucidate whether the CADASIL phenotype results from loss or gain of NOTCH3 function.
These models can guide the development of targeted therapies for CADASIL.