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Expression of ataxi...
Expression of ataxin-7 in CNS and non-CNS tissue of normal and SCA7 individuals
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Jonasson, Jenni (author)
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- Ström, Anna-Lena (author)
- Umeå universitet,Institutionen för molekylärbiologi (Medicinska fakulteten)
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Hart, Patricia (author)
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- Brännström, Thomas (author)
- Umeå universitet,Patologi
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Forsgren, Lars (author)
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- Holmberg, Monica (author)
- Umeå universitet,Institutionen för molekylärbiologi (Medicinska fakulteten)
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(creator_code:org_t)
- 2002-03-02
- 2002
- English.
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In: Acta Neuropathologica. - : Springer. - 0001-6322 .- 1432-0533. ; 104:1, s. 29-37
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Spinocerebellar ataxia type 7 (SCA7) is a neurodegenerative disorder primarily affecting the cerebellum, brain stem and retina. The disease is caused by an expanded polyglutamine tract in the protein ataxin-7. In this study we analyzed the expression pattern of ataxin-7 in CNS and non-CNS tissue from three SCA7 patients and age-matched controls. SCA7 is a rare autosomal dominant disorder, limiting the number of patients available for analysis. We therefore compiled data on ataxin-7 expression from all SCA7 patients (n=5) and controls (n=7) published to date, and compared with the results obtained in this study. Expression of ataxin-7 was found in neurons throughout the CNS and was highly abundant in Purkinje cells of the cerebellum, in regions of the hippocampus and in cerebral cortex. Ataxin-7 expression was not restricted to regions of pathology, and there were no apparent regional differences in ataxin-7 expression patterns between patients and controls. The subcellular distribution of ataxin-7 was primarily nuclear in all brain regions studied. In cerebellar Purkinje cells, however, differences in subcellular distribution of ataxin-7 were observed between patients and controls of different ages. Here we provide an increased understanding of the distribution of ataxin-7, and the possible implication of subcellular localization of this protein on disease pathology is discussed.
Subject headings
- NATURVETENSKAP -- Biologi -- Biokemi och molekylärbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Biochemistry and Molecular Biology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Medicinsk genetik (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Medical Genetics (hsv//eng)
Keyword
- spinocerebellar ataxia type 7
- ataxin-7
- expression
- subcellular localization
Publication and Content Type
- ref (subject category)
- art (subject category)
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