RGD Reference Report - Neurodegeneration with brain iron accumulation, type 1 is characterized by alpha-, beta-, and gamma-synuclein neuropathology. - Rat Genome Database

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Neurodegeneration with brain iron accumulation, type 1 is characterized by alpha-, beta-, and gamma-synuclein neuropathology.

Authors: Galvin, JE  Giasson, B  Hurtig, HI  Lee, VM  Trojanowski, JQ 
Citation: Galvin JE, etal., Am J Pathol. 2000 Aug;157(2):361-8.
RGD ID: 6480098
Pubmed: PMID:10934140   (View Abstract at PubMed)
PMCID: PMC1850114   (View Article at PubMed Central)

Neurodegeneration with brain iron accumulation, type 1 (NBIA 1), or Hallervorden-Spatz syndrome, is a rare neurodegenerative disorder characterized clinically by Parkinsonism, cognitive impairment, pseudobulbar features, as well as cerebellar ataxia, and neuropathologically by neuronal loss, gliosis, and iron deposition in the globus pallidus, red nucleus, and substantia nigra. The hallmark pathological lesions of NBIA 1 are axonal spheroids, but Lewy body (LB)-like intraneuronal inclusions, glial inclusions, and rare neurofibrillary tangles also occur. Here we show that there is an accumulation of alpha-synuclein (alphaS) in LB-like inclusions, glial inclusions, and spheroids in the brains of three NBIA 1 patients. Further, beta-synuclein (betaS) and gamma-synuclein (gammaS) immunoreactivity was detected in spheroids but not in LB-like or glial inclusions. Western blot analysis demonstrated high-molecular weight alphaS aggregates in the high-salt-soluble and Triton X-100-insoluble/sodium dodecyl sulfate-soluble fraction of the NBIA 1 brain. Significantly, the levels of alphaS were markedly reduced in the Triton X-100-soluble fractions compared to control brain, and unlike other synucleinopathies, insoluble alphaS did not accumulate in the formic acid-soluble fraction. These findings expand the concept of neurodegenerative synucleinopathies by implicating alphaS, betaS, and gammaS in the pathogenesis of NBIA 1.

RGD Manual Disease Annotations    Click to see Annotation Detail View

Objects Annotated

Genes (Rattus norvegicus)
Snca  (synuclein alpha)
Sncb  (synuclein, beta)
Sncg  (synuclein, gamma)

Genes (Mus musculus)
Snca  (synuclein, alpha)
Sncb  (synuclein, beta)
Sncg  (synuclein, gamma)

Genes (Homo sapiens)
SNCA  (synuclein alpha)
SNCB  (synuclein beta)
SNCG  (synuclein gamma)


Additional Information