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Sökning: WFRF:(Kalimo Hannu) > (2015-2016) > Clusterin/Apolipopr...

Clusterin/Apolipoprotein J immunoreactivity is associated with white matter damage in cerebral small vessel diseases

Craggs, L. J. L. (författare)
Taylor, J. L. (författare)
Slade, J. Y. (författare)
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Chen, A. (författare)
Hagel, C. (författare)
Kuhlenbaeumer, G. (författare)
Börjesson-Hanson, Anne, 1959 (författare)
Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi,Institute of Neuroscience and Physiology
Viitanen, M. (författare)
Karolinska Institutet
Kalimo, Hannu (författare)
Deramecourt, V. (författare)
Oakley, A. E. (författare)
Kalaria, R. N. (författare)
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 (creator_code:org_t)
2015-06-17
2016
Engelska.
Ingår i: Neuropathology and Applied Neurobiology. - : Wiley. - 0305-1846 .- 1365-2990. ; 42:2, s. 194-209
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
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  • AimBrain clusterin is known to be associated with the amyloid- deposits in Alzheimer's disease (AD). We assessed the distribution of clusterin immunoreactivity in cerebrovascular disorders, particularly focusing on white matter changes in small vessel diseases. MethodsPost-mortem brain tissues from the frontal or temporal lobes of a total of 70 subjects with various disorders including cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL), cerebral amyloid angiopathy (CAA) and AD were examined using immunohistochemistry and immunofluorescence. We further used immunogold electron microscopy to study clusterin immunoreactivity in extracellular deposits in CADASIL. ResultsImmunostaining with clusterin antibodies revealed strong localization in arterioles and capillaries, besides cortical neurones. We found that clusterin immunostaining was significantly increased in the frontal white matter of CADASIL and pontine autosomal dominant microangiopathy and leukoencephalopathy subjects. In addition, clusterin immunostaining correlated with white matter pathology severity scores. Immunostaining in axons ranged from fine punctate deposits in single axons to larger confluent areas with numerous swollen axon bulbs, similar to that observed with known axon damage markers such as non-phosphorylated neurofilament H and the amyloid precursor protein. Immunofluorescence and immunogold electron microscopy experiments showed that whereas clusterin immunoreactivity was closely associated with vascular amyloid- in CAA, it was lacking within the granular osmiophilic material immunolabelled by NOTCH3 extracelluar domain aggregates found in CADASIL. ConclusionsOur results suggest a wider role for clusterin associated with white matter damage in addition to its ability to chaperone proteins for clearance via the perivascular drainage pathways in several disease states.

Ämnesord

MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine (hsv//eng)

Nyckelord

Alzheimer's disease
CADASIL
cerebral amyloid angiopathy
cerebrovascular disease
clusterin
granular osmiophilic material
genome-wide association
in-situ hybridization
alzheimers-disease
sulfated glycoprotein-2
multifunctional protein
identifies variants
plasma clusterin
messenger-rna
brain-tissue
amyloid-beta

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