Abstract：
:The normal cellular prion protein (PrP(C)) plays an essential role in the development of prion diseases. Indirect evidence has suggested that different PrP(C) glycoforms may be expressed in different brain regions and perform distinct functions. However, due to a lack of monoclonal antibodies (Mabs) that are specific for mouse PrP(C), the expression of PrP(C) in the mouse brain has not been studied in great detail. We used Mabs specific for either the N-terminus or the C-terminus of the mouse PrP(C) to study its expression in the mouse brain by immunoblotting and immunohistochemistry. Immunoblotting studies demonstrated that the expression of PrP(C) differed quantitatively as well as qualitatively in different regions of the brain. The anti-C-terminus Mabs reacted with all three molecular weight bands of PrP(C); the anti-N-terminus Mabs only reacted with the 39-42 kDa PrP(C). The results from immunohistochemical staining revealed the spatial distribution of PrP(C) in the mouse brain, which were consistent with that from immunoblotting. Although expression of PrP(C) has been reported to be required for long-term survival of Purkinje cells, we were unable to detect PrP(C) in the Purkinje cell layer in the cerebellum with multiple anti-PrP Mabs. Our findings suggest that PrP(C) variants, i.e. various glycoforms and truncated forms, might be specifically expressed in different regions of mouse brain and might have different functions.
journal_name
Brain Resjournal_title
Brain researchauthors
Liu T,Zwingman T,Li R,Pan T,Wong BS,Petersen RB,Gambetti P,Herrup K,Sy MSdoi
10.1016/s0006-8993(01)02050-9subject
Has Abstractpub_date
2001-03-30 00:00:00pages
118-29issue
1-2eissn
0006-8993issn
1872-6240pii
S0006-8993(01)02050-9journal_volume
896pub_type
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