Cited by 20Cerebrovascular and genetic disordersAlzheimer's disease research and treatmentsNeurological Disease Mechanisms and Treatments

Evidence of beta amyloid independent small vessel disease in familial Alzheimer's disease

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Littau, Jessica Lisa, Velilla, Lina, Hase, Yoshiki, Villalba‐Moreno, Nelson David, Hagel, Christian, Drexler, Dagmar, Osorio Restrepo, Santiago, Villegas, Andres +8 more·2022·Brain Pathology

Abstract

We studied small vessel disease (SVD) pathology in Familial Alzheimer's disease (FAD) subjects carrying the presenilin 1 (PSEN1) p.Glu280Ala mutation in comparison to those with sporadic Alzheimer's disease (SAD) as a positive control for Alzheimer's pathology and Cerebral Autosomal Dominant Arteriopathy with Subcortical Infarcts and Leukoencephalopathy (CADASIL) bearing different NOTCH3 mutations, as positive controls for SVD pathology. Upon magnetic resonance imaging (MRI) in life, some FAD showed mild white matter hyperintensities and no further radiologic evidence of SVD. In post‐mortem studies, total SVD pathology in cortical areas and basal ganglia was similar in PSEN1 FAD and CADASIL subjects, except for the feature of arteriosclerosis which was higher in CADASIL subjects than in PSEN1 FAD subjects. Further only a few SAD subjects showed a similar degree of SVD pathology as observed in CADASIL. Furthermore, we found significantly enlarged perivascular spaces in vessels devoid of cerebral amyloid angiopathy in FAD compared with SAD and CADASIL subjects. As expected, there was greater fibrinogen‐positive perivascular reactivity in CADASIL but similar reactivity in PSEN1 FAD and SAD groups. Fibrinogen immunoreactivity correlated with onset age in the PSEN1 FAD cases, suggesting increased vascular permeability may contribute to cognitive decline. Additionally, we found reduced perivascular expression of PDGFRβ AQP4 in microvessels with enlarged PVS in PSEN1 FAD cases. We demonstrate that there is Aβ‐independent SVD pathology in PSEN1 FAD, that was marginally lower than that in CADASIL subjects although not evident by MRI. These observations suggest presence of covert SVD even in PSEN1, contributing to disease progression. As is the case in SAD, these consequences may be preventable by early recognition and actively controlling vascular disease risk, even in familial forms of dementia.

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Authors
Littau, J. L., Velilla, L., Hase, Y., Villalba‐Moreno, N. D., Hagel, C., Drexler, D., Osorio Restrepo, S., Villegas, A., Lopera, F., Vargas, S., Glatzel, M., Krasemann, S., Quiroz, Y. T., Arboleda‐Velasquez, J. F., Kalaria, R., & Sepulveda‐Falla, D.
Affiliations
  • University Medical Center Hamburg-Eppendorf (DE)
  • Universidad de Antioquia (CO)
  • Newcastle University (GB)
  • Department of Radiology, Neuroradiology Section Universidad de Antioquia Medellín Colombia
  • Neuroscience Group of Antioquia University of Antioquia Medellín
  • Harvard University (US)
  • Schepens Eye Research Institute of Mass Eye and Ear and the Department of Ophthalmology at Harvard Medical School Boston Massachusetts
  • Neurovascular Research Group Translational and Clinical Research Institute, Newcastle University Newcastle upon Tyne
  • Institute of Neuropathology University Medical Center Hamburg‐Eppendorf Hamburg Germany
Venue
Brain Pathology
Publisher
Wiley
Published
2022-06-13
Volume
32
Issue
6
Pages
e13097-e13097
ISSN
  • 1015-6305 (ISSN-L)
  • 1750-3639
OpenAlex
W4282555638
Cited by
20
References
60
Citations by year
2026: 5 · 2025: 4 · 2024: 7 · 2023: 2 · 2022: 2
FWCI
1.97
Type
journal article
Language
en
Open access
Locations
  • Brain Pathology (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • Newcastle University ePrints (Newcastle Univesity) (cc-by-nc-nd)
Funders
  • Bundesministerium für Bildung und Forschung
  • National Institute of Neurological Disorders and Stroke (RF1NS110048)
Topics
  • Health Sciences › Medicine › Neurology › Cerebrovascular and genetic disorders
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Neurology › Neurological Disease Mechanisms and Treatments
Keywords
cerebral small vessel disease, familial Alzheimer's disease, CADASIL, Notch3, perivascular spaces, fibrinogen, PDGFRβ, aquaporin-4, cerebral amyloid angiopathy, arteriosclerosis, white matter hyperintensities, vascular permeability, age of onset, cognitive decline
MeSH terms
Alzheimer Disease, Fibrinogen, Humans, Amyloid beta-Peptides, CADASIL

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