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Updated: Jan 28, 2026

Perspectives on Neuroscience
Published on: July 31, 2007
CADASIL: new advances in basic science and clinical perspectives
Elisa A Ferrante1, Cornelia D Cudrici, Manfred Boehm
1National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA.
Insights
Cerebral Autosomal Dominant Arteriopathy with Subcortical Infarcts and Leukoencephalopathy (CADASIL) is a diverse genetic condition affecting small blood vessels. Current research focuses on understanding its complex mechanisms and identifying biomarkers for future treatments.
Area of Science:
- Neurology
- Genetics
- Vascular Biology
Background:
- Cerebral Autosomal Dominant Arteriopathy with Subcortical Infarcts and Leukoencephalopathy (CADASIL) is a genetically diverse small vessel disease.
- NOTCH3 gene variants are primary causes, impacting vessel homeostasis.
- Early MRI findings of white matter changes often precede severe symptoms.
Purpose of the Study:
- To review and synthesize current knowledge on CADASIL.
- To highlight the challenges in understanding CADASIL mechanisms.
- To emphasize the need for translational research.
Main Methods:
- Review of existing literature on CADASIL genetics, pathology, and clinical presentation.
- Analysis of molecular mechanisms involving NOTCH3 mutations.
- Evaluation of potential biomarkers and therapeutic targets.
Main Results:
- CADASIL exhibits significant genotypic and phenotypic variability.
- NOTCH3 mutation location influences disease severity.
- Granular osmiophilic material deposition is a unique pathological feature.
- Neurofilament light chain shows promise as a circulating biomarker.
Conclusions:
- CADASIL pathogenesis remains incompletely understood.
- No effective treatments are currently available.
- Translational research is crucial for discovering biomarkers and therapies.
Purpose Of Review:
Recent advances in genetic evaluation improved the identification of several variants in the NOTCH3 gene causing Cerebral Autosomal Dominant Arteriopathy with Subcortical Infarcts and Leukoencephalopathy (CADASIL). Despite improved diagnosis, the disease mechanism remains an elusive target and an increasing number of scientific/clinical groups are investigating CADASIL to better understand it. The purpose of this review is to summarize the current knowledge in CADASIL.
Recent Findings:
CADASIL is a genotypically and phenotypically diverse condition involving multiple molecular systems affecting small blood vessels. Cerebral white matter changes observed by MRI are a key CADASIL characteristic in young adult patients often before severe symptoms and trigger NOTCH3 genetic testing. NOTCH3 mutation locations are highly variable, correlate to disease severity and consistently affect the cysteine balance within extracellular Notch3. Granular osmiophilic material deposits around blood vessels are also a unique CADASIL feature and appear to have a role in sequestering proteins that are essential for blood vessel homeostasis. As potential biomarkers and therapeutic targets are being actively investigated, neurofilament light chain can be detected in patient serum and may be a promising circulating biomarker.
Summary:
CADASIL is a complex, devastating disease with unknown mechanism and no treatment options. As we increase our understanding of CADASIL, translational research bridging basic science and clinical findings needs to drive biomarker and therapeutic target discovery.
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