NDLI: Gene Expression Profile Following Stable Expression of the Cellular Prion Protein

Content Provider	Springer Nature Link
Author	Satoh, Jun ichi Yamamura, Takashi
Copyright Year	2004
Abstract	1. The cellular prion protein (PrPC) is expressed widely in neural and nonneural tissues at the highest level in neurons in the central nervous system (CNS).2. Recent studies indicated that transgenic mice with the cytoplasmic accumulation of PrPC exhibited extensive neurodegeneration in the cerebellum, although the underlying mechanism remains unknown. To identify the genes whose expression is controlled by overexpression of PrPC in human cells, we have established a stable PrPC-expressing HEK293 cell line designated P1 by the site-specific recombination technique.3. Microarray analysis identified 33 genes expressed differentially between P1 and the parent PrPC-non-expressing cell line among 12,814 genes examined. They included 18 genes involved in neuronal and glial functions, 5 related to production of extracellular matrix proteins, and 2 located in the complement cascade.4. Northern blot analysis verified marked upregulation in P1 of the brain-specific protein phosphatase 2A beta subunit (PPP2R2B), a causative gene of spinocerebellar ataxia 12, and the cerebellar degeneration-related autoantigen (CDR34) gene associated with development of paraneoplastic cerebellar degeneration.5. These results indicate that accumulation of PrPC in the cell caused aberrant regulation of a battery of the genes important for specific neuronal function. This represents a possible mechanism underlying PrPC-mediated selective neurodegeneration.
Starting Page	793
Ending Page	814
Page Count	22
File Format	PDF
ISSN	02724340
Journal	Cellular and Molecular Neurobiology
Volume Number	24
Issue Number	6
e-ISSN	15736830
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	2004-01-01
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Neurosciences Animal Anatomy / Morphology / Histology
Content Type	Text
Resource Type	Article
Subject	Cell Biology Medicine Cellular and Molecular Neuroscience

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