Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2005-3-14
pubmed:abstractText
The availability of specific monoclonal antibodies (mAbs) recognizing the aberrant form (PrP(Sc)) of the cellular prion protein (PrP(C)) in different mammalian species is important for molecular diagnostics, PrP(Sc) typing and future immunotherapy. We obtained a panel of anti-PrP monoclonal antibodies in PrP(0/0) knock-out mice immunized with recombinant human PrP(23-231). Two mAbs, recognizing PrP epitopes in the alpha-helix 1 (mAb SA65) and alpha-helix 2 (mAb SA21) regions, immunoreacted with PrP(C) and PrP(Sc) and its proteolytic product, PrP27-30, from human, murine, bovine, caprine and ovine brains by Western blot. Remarkably, mAb SA21 recognized unglycosylated and monoglycosylated PrP with the second site occupied by glycan moieties, but not monoglycosylated PrP with the first consensus site occupied or highly glycosylated species. Immunoblots with mAb SA21 disclosed that PrP glycosylated at the second site accounted for the slower migrating form of the customary monoglycosylated PrP doublet. mAb SA65 immunolabelled all PrP glycoforms by Western blot and was highly efficient in detecting tissue PrP by immunohistochemistry in light microscopy and in immunoelectron microscopy. These novel anti-PrP mAbs provide tools to investigate the subcellular site of PrP deposition in mammalian prion diseases and may also contribute to assess the role of different PrP glycoforms in human and animal prion diseases.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0361-9230
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
65
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
155-62
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:15763182-Animals, pubmed-meshheading:15763182-Antibodies, Monoclonal, pubmed-meshheading:15763182-Antibody Specificity, pubmed-meshheading:15763182-Brain, pubmed-meshheading:15763182-Cats, pubmed-meshheading:15763182-Cattle, pubmed-meshheading:15763182-Cells, Cultured, pubmed-meshheading:15763182-Cricetinae, pubmed-meshheading:15763182-Epitopes, pubmed-meshheading:15763182-Glycosylation, pubmed-meshheading:15763182-Goats, pubmed-meshheading:15763182-Humans, pubmed-meshheading:15763182-Immunoblotting, pubmed-meshheading:15763182-Immunohistochemistry, pubmed-meshheading:15763182-Male, pubmed-meshheading:15763182-Mice, pubmed-meshheading:15763182-Mice, Knockout, pubmed-meshheading:15763182-Microscopy, Electron, Transmission, pubmed-meshheading:15763182-Molecular Weight, pubmed-meshheading:15763182-PrPSc Proteins, pubmed-meshheading:15763182-Prion Diseases, pubmed-meshheading:15763182-Sheep
pubmed:year
2005
pubmed:articleTitle
Analysis of mammalian scrapie protein by novel monoclonal antibodies recognizing distinct prion protein glycoforms: an immunoblot and immunohistochemical study at the light and electron microscopic levels.
pubmed:affiliation
Section of Immunology, Department of Pathology, University of Verona, Policlinico G.B. Rossi, P. le L.A. Scuro 10, 37134 Verona, Italy.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't