6533b82bfe1ef96bd128e393
RESEARCH PRODUCT
Influence of ADAM10 on prion protein processing and scrapie infectiosity in vivo.
Gerda MittereggerFalk FahrenholzElzbieta KojroHans A. KretzschmarKristina Endressubject
Prionsanimal diseasesADAM10Molecular Sequence DataPrion diseaseScrapieMice Transgeniclcsh:RC321-571ADAM10 ProteinMiceIn vivomental disordersNeurotoxicitymedicineAmyloid precursor proteinAnimalsHumansGliosisAmino Acid Sequencealpha-Secretaselcsh:Neurosciences. Biological psychiatry. NeuropsychiatrySheddingMetalloproteinasebiologyChemistryBrainMembrane ProteinsMolecular biologyIn vitronervous system diseasesMice Inbred C57BLADAM ProteinsNeurologyAlpha secretaseGliosisbiology.proteinCattlemedicine.symptomAmyloid Precursor Protein SecretasesProtein Processing Post-TranslationalScrapiedescription
Abstract Both the cellular prion protein (PrPc) and the amyloid precursor protein (APP) are physiologically subjected to complex proteolytic processing events. While for APP the proteinases involved – alpha-, beta- and gamma-secretase – have been identified in vitro and in vivo, the cleavage of PrPc by now has been linked only to the shedding activity of the metalloproteinase ADAM10 and/or ADAM17 in cell culture. Here we show that neuronal overexpression of the alpha-secretase ADAM10 in mice reduces all PrPc species detected in the brain instead of leading to enhanced amounts of specific cleavage products of PrPc. Additionally, the incubation time of mice after scrapie infection is significantly increased in mice moderately overexpressing ADAM10. This indicates that overexpression of ADAM10 rather influences the amount of the cellular prion protein than its processing in vivo.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-11-01 | Neurobiology of disease |