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1 PrP ligands could theoretically antagonize prion formati
2 PrP(C) may also act as a receptor for neurotoxic, oligom
3 PrP(C) may be shed from the cell surface to generate sol
4 PrP(L-BSE) associated seeding activity was detected at e
5 PrP(Sc) resistance to proteinase K (PrP(res)), residual
7 pply a method for monitoring the effect of a PrP-reducing drug in the CNS, and will facilitate develo
8 5 days old) spontaneously generated abnormal PrP assemblies, which after inoculation into further gro
9 tulate our previous findings with additional PrP-targeting ASOs, and demonstrate therapeutic benefit
10 tein (PrP), act as lethal infectious agents, PrP amyloid fibrils produced in vitro generally do not.
12 phosphatidylinositol-anchored (GPI-anchored) PrP was relatively unchanged, forming diffuse, HS-defici
13 regarding the interaction between Zn(2+) and PrP(C), there is little direct spectroscopic confirmatio
14 express comparable levels of PrP(A116V) and PrP(C) respectively, displayed similar increases in Abet
15 velop amyloid-beta (Abeta) plaques of AD and PrP (specifically mutated PrP(A116V)) plaques of Gerstma
16 rimary human TM cells and human, bovine, and PrP-knock-out (PrP(-/-)) mouse models, we demonstrate th
18 sults support ASO-mediated PrP lowering, and PrP-lowering therapeutics in general, as a promising pat
20 f tau-based assays for Alzheimer's seeds and PrP-based assays for prions were best in weakly hydrated
24 arly to the amyloid precursor protein (APP), PrP(C) is proteolytically cleaved from the cell surface
25 te into the infectious scrapie form known as PrP(Sc) The high-resolution structure of the infectious
26 C) and inducing its conversion to PrP(Sc) As PrP(Sc) accumulates, cellular stress mechanisms are acti
29 ings indicate that amino acid differences at PrP residue 226 dictate the selection and propagation of
30 a from sCJDMM1-2 (methionine homozygosity at PrP gene codon 129) establishes the type-mixed sCJD vari
34 ecifically, the experiments reveal that both PrP(106-126) and hIAPP induced dramatic transformations
36 rom 5 different European countries to bovine PrP mice resulted in the propagation of the classical BS
38 noculated animals show detectable skin/brain PrP(Sc) only after long cohabitation periods with scrapi
39 ow that strain characteristics of vCJD brain PrP(D), including infectivity, are preserved in PrP(D) p
44 nsible for the recognition of the peptide by PrP(C), as well as PrP(C)-dependent cellular uptake.
46 cells expressing solely the Delta190-196 C1 PrP construct, in the absence of the full-length protein
47 acking endogenous mouse PrP expression (CAD5-PrP(-/-) cells) can be chronically infected with hamster
49 pression of the cellular prion protein CD230/PrP(C) and the immunosuppressive cell surface enzyme ect
51 d by chymotrypsin to digest denatured cervid PrP, 19 peptides suitable for multiple reaction monitori
56 ot hamster prions upon expression of cognate PrP, suggesting that CAD5 cells either possess cellular
59 in (PrP(C)) into its infectious counterpart (PrP(Sc)) during prion infection remain undetermined, in
60 that blood contamination does not affect CSF PrP levels, and that CSF PrP and hemoglobin are uncorrel
61 cohort with controlled sample handling, CSF PrP exhibits good within-subject test-retest reliability
62 does not affect CSF PrP levels, and that CSF PrP and hemoglobin are uncorrelated, together suggesting
63 e uncorrelated, together suggesting that CSF PrP is CNS derived, supporting its relevance for monitor
65 sociated, disease-causing prion protein (Ctm)PrP, increased ALIX and ALG-2 levels are detected along
67 oding sequence was replaced with elk or deer PrP, we show that the resulting GtE226 and GtQ226 mice h
68 CR deletion generates toxicity, we designed PrP(C) constructs wherein either the cis-interaction or
69 S samples, whereas western blotting detected PrP(Sc) in the sciatic nerve in one VV2 and one MV2K.
71 tection, prion infection leads to diminished PrP(Sc) glycosylation at Asn-196, resulting in an unshie
72 hat transmission through hosts with distinct PrP(C) sequences diversifies the PrP(CWD) conformations
73 tional standard manipulations to distinguish PrP(Sc) from PrP(C), including evaluation of protease re
75 a neuroblastoma cells ablated for endogenous PrP expression were susceptible to mouse prions, but not
77 rict prion replication, distinct co-existing PrP(CWD) conformers underwent competitive selection, sta
79 man AD brains revealed a strong affinity for PrP(C), weak affinity for NgR1, and no detectable affini
80 ngs further establish a structural basis for PrP(C)'s C-terminal regulation of its otherwise toxic N
83 cence analysis indicated similar results for PrP(Sc) Interestingly, when we used prion conversion act
85 rd manipulations to distinguish PrP(Sc) from PrP(C), including evaluation of protease resistance.
87 ral instability of incompletely glycosylated PrP contributes to the conformational conversion of PrP(
88 had prolonged incubation periods and greater PrP(Sc) fibril stability compared to mice challenged wit
95 ings from transgenic mice that express human PrP 117V on a mouse PrP null background (117VV Tg30 mice
97 ransgenic model expressing only mutant human PrP to show spontaneous generation of transmissible PrP
98 ated transgenic mice expressing normal human PrP with amplified urine and brain homogenate achieving
99 ntial of ELISA-based quantification of human PrP in human cerebrospinal fluid (CSF) to serve as a bio
100 studies provide insight into how PTMs impact PrP interactions with polyanionic cofactors, and highlig
101 s been observed to drive tertiary contact in PrP(C), inducing a neuroprotective cis interaction that
102 ocular pressure is significantly elevated in PrP(-/-) mice relative to wild-type controls, suggesting
105 (D), including infectivity, are preserved in PrP(D) present in urine and are faithfully amplified by
106 Further uptake stereodifferentiation in PrP(C)-free cells points toward additional receptor-medi
107 ink encephalopathy uncovered that incomplete PrP(Sc) glycosylation is a consistent feature of prion p
111 o examine the structure of highly infectious PrP rods isolated from mouse brain in comparison to non-
113 high-resolution structure of the infectious PrP(Sc) state remains unknown, and its analysis largely
115 indings not only provide deeper insight into PrP(C) metal ion coordination but they also suggest new
118 e proteomics revealed a remarkably invariant PrP* interactome during its trafficking from the endopla
119 otein (PrP(C)) into the pathological isoform PrP(Sc) Elucidating the molecular and cellular mechanism
122 intracellular Abeta plaques in mice lacking PrP(C) (TgAD/PrP(-/-), TgAD/GSS) compared with an extrac
124 n of the deglycosylated forms of full-length PrP(C) and its C-terminal cleavage fragments C1 and C2,
125 teolysis are of interest because full-length PrP(C) and its cleavage fragments differ in their propen
126 L132 elk is a novel CWD strain and that M132 PrP(C) is able to propagate some biophysical properties
127 hat antisense oligonucleotide (ASO)-mediated PrP suppression extends survival and delays disease onse
129 disruption of this interaction by misfolded PrP oligomers may be a cause of toxicity in prion diseas
131 lecular weight range approximating monomeric PrP (mM1000) generated through size exclusion chromatogr
132 mice that express human PrP 117V on a mouse PrP null background (117VV Tg30 mice), which model the P
133 ate that CAD5 cells lacking endogenous mouse PrP expression (CAD5-PrP(-/-) cells) can be chronically
134 Examination of the mutation E199K in mouse PrP(C) (E200K in humans), responsible for inherited Creu
135 prion replication required absence of mouse PrP, and hamster PrP inhibited the propagation of mouse
136 ng a gene-targeting approach where the mouse PrP coding sequence was replaced with elk or deer PrP, w
137 the generation of disease-related multichain PrP assemblies that propagate by seeded protein misfoldi
140 plaques of AD and PrP (specifically mutated PrP(A116V)) plaques of Gerstmann-Straussler-Scheinker di
141 e not subclinical carriers of scrapie, as no PrP(Sc) was detected in brains or spleen of these animal
144 tometry analysis showed that at least 85% of PrP* molecules transiently access the plasma membrane en
150 methods in an effort to discover binders of PrP, including (19)F-observed and saturation transfer di
151 s, it is likely that concomitant cleavage of PrP(C) exaggerates and confounds the pathology by induci
157 The morphologically diverse deposition of PrP(Sc) in genetic and sporadic CJD argues against unifo
158 rein, we studied a recombinant derivative of PrP(C) (soluble cellular prion protein, S-PrP) that corr
159 erved histidines in the C-terminal domain of PrP(C) are essential for the protein's cis interaction,
160 markers can be reversed by a single dose of PrP-lowering ASO administered after the detection of pat
162 rotein is a misfolded and aggregated form of PrP(C) responsible for prion-induced neurodegenerative d
163 nds closely in sequence to a soluble form of PrP(C) shed from the cell surface by proteases in the A
164 these results demonstrate that shed forms of PrP(C) may exhibit important biological activities in th
165 that the CR facilitates homodimerization of PrP(C) , attenuating the toxicity of the N-terminus.
167 as also applied to examine the inhibition of PrP(106-126)-membrane interactions by epigallocatechin g
168 HuPrP mice that express comparable levels of PrP(A116V) and PrP(C) respectively, displayed similar in
169 roduce and especially by the localization of PrP(Sc) deposits within the brain and the spongiform les
177 to the flexible, N-terminal repeat region of PrP(C) and drives a tertiary contact between this repeat
178 evidence that the 113 C-terminal residues of PrP are sufficient for a self-propagating prion entity.
179 so provide support for a fundamental role of PrP(C) to bind to and deliver intraneuronal Abeta to exo
180 s indicate that by promoting the shedding of PrP(C) in human neurons, ADAM10 activation prevents the
185 the role of the H2 alpha-helix C terminus of PrP, we found that deletion of the highly conserved (190
186 APPswe cells revealed a direct dependence on PrP(C) but not PrP(A116V) for exosome-related secretion
189 racterization identified the docking site on PrP(C) that underlies the stereoselective binding of Abe
191 ialoglycoprotein called the prion protein or PrP(C) The current work tests a new hypothesis that sial
192 stion of nucleic acids, whereas higher-order PrP assemblies derived from pooled mM1000, oM1000, and o
193 xpressing either the mutant protein or other PrPs with slightly different deletions in the same area.
194 cells and human, bovine, and PrP-knock-out (PrP(-/-)) mouse models, we demonstrate that PrP(C) is ex
195 conserved (190)HTVTTTT(196) segment of ovine PrP led to spontaneous prion formation in the RK13 rabbi
196 y was also detected in brain tissue of ovine PrP mice inoculated with limiting dilutions (endpoint ti
197 re caused by the conversion of physiological PrP(C) into the pathogenic misfolded protein PrP(Sc), co
200 in, which up-regulates ADAM10, also promoted PrP(C) shedding and decreased AbetaO binding in the neur
201 NAs modulates phase separation and promotes PrP fibrillation in a NA structure and concentration-dep
202 th the muscarinic agonist carbachol promotes PrP(C) shedding and reduces the binding of AbetaO to the
203 PrP(C) into the pathogenic misfolded protein PrP(Sc), conferring new properties to PrP(Sc) that vary
204 mely, the 106-126 fragment of prion protein (PrP(106-126)) and the human islet amyloid polypeptide (h
205 sition 163 of canine cellular prion protein (PrP(C) ) is a major determinant of the exceptional resis
207 the past decade, the cellular prion protein (PrP(C)) has emerged as an important mediator of Abeta-in
208 given the location of normal prion protein (PrP(C)) in lipid rafts and lipid cofactors generating in
210 tional conversion of cellular prion protein (PrP(C)) into its infectious counterpart (PrP(Sc)) during
211 ctural conversion of cellular prion protein (PrP(C)) into scrapie PrP (PrP(Sc)) and subsequent aggreg
212 by misfolding of the cellular prion protein (PrP(C)) into the pathological isoform PrP(Sc) Elucidatin
218 species that express cellular prion protein (PrP(C)) molecules varying in amino acid composition.
220 -encoded cellular form of the prion protein (PrP(C)) to selectively propagate optimized prion conform
221 , we investigated whether the prion protein (PrP(C)), a neuronal protein known to modulate epithelial
222 beta receptors, only cellular prion protein (PrP(C)), Nogo receptor 1 (NgR1), and leukocyte immunoglo
224 of abnormal, disease-related prion protein (PrP(D)) has recently been demonstrated by protein misfol
225 To detect disease-associated prion protein (PrP(Sc) ) in the vagus nerve in different forms and mole
226 psies and looked for abnormal prion protein (PrP(Sc)) by western blotting and real-time quaking-induc
228 uestion of cross-talk between prion protein (PrP) and Alzheimer's disease (AD), we generated TgAD/GSS
229 e gene gives rise to a single prion protein (PrP) capable of converting into the sole causal disease
231 coding mutations in the human prion protein (PrP) gene (PRNP) and account for about 15% of human prio
233 ering knockin mice expressing prion protein (PrP) lacking 2 N-linked glycans (Prnp180Q/196Q), we prov
236 ormational corruption of host prion protein (PrP) to its infective counterpart, contagious transmissi
237 ic mouse model expressing dog prion protein (PrP) was generated and challenged intracerebrally with a
238 ies of misfolded host-encoded prion protein (PrP), act as lethal infectious agents, PrP amyloid fibri
239 olding and aggregation of the prion protein (PrP), and there are currently no therapeutic options.
240 of the host-encoded cellular prion protein (PrP), leading to the formation of beta-sheet-rich, insol
243 ozygosity at codon 129 of the prion protein, PrP, gene harboring disease-related PrP, PrP(D), types 1
244 Misofolding of mammalian prion proteins (PrP) is believed to be the cause of a group of rare and
245 lar prion protein (PrP(C)) into scrapie PrP (PrP(Sc)) and subsequent aggregation are key events assoc
249 practical and robust method for quantifying PrP, and reliably demonstrating its reduction in the cen
253 ely, siRNA-mediated ADAM10 knockdown reduced PrP(C) shedding and increased AbetaO binding, which was
261 of PrP(C) (soluble cellular prion protein, S-PrP) that corresponds closely in sequence to a soluble f
262 cellular prion protein (PrP(C)) into scrapie PrP (PrP(Sc)) and subsequent aggregation are key events
267 r Abeta plaques in mice lacking PrP(C) (TgAD/PrP(-/-), TgAD/GSS) compared with an extracellular predo
269 (PrP(-/-)) mouse models, we demonstrate that PrP(C) is expressed in the TM of all three species, incl
271 our findings are two-fold; they suggest that PrP expression augments Abeta plaque production, at leas
272 formation of PrPSc plaques and suggest that PrP posttranslational modifications direct pathogenicity
273 lly low hit rate observed here suggests that PrP is a difficult target for small-molecule binders.
276 th distinct PrP(C) sequences diversifies the PrP(CWD) conformations and causes a shift toward oligome
278 o diseases, which preferentially involve the PrP(Sc) component that is sensitive to digestion with pr
279 sue of whether strain characteristics of the PrP(D) present in vCJD brains, such as infectivity and p
282 w here that PrP undergoes LLPS, and that the PrP interaction with NAs modulates phase separation and
283 ans of PMCA; moreover, they suggest that the PrP(D) urine test might allow for the diagnosis and iden
286 e oxygen species caused by AbetaO binding to PrP(C) Besides blocking AbetaO binding and toxicity, aci
289 g with PrP(C) and inducing its conversion to PrP(Sc) As PrP(Sc) accumulates, cellular stress mechanis
291 Peripheral neuropathy, likely related to PrP(Sc) deposition, belongs to the phenotypic spectrum o
293 show spontaneous generation of transmissible PrP assemblies that directly mirror those generated in a
294 formation of disease-relevant, transmissible PrP assemblies in transgenic models expressing only muta
295 lly, knockin mice expressing triglycosylated PrP (Prnp187N) challenged with a plaque-forming prion st
296 N-linked glycosylation shields or unshields PrP epitopes from antibody recognition, it dispenses wit
300 sion, PrP(Sc) replicates by interacting with PrP(C) and inducing its conversion to PrP(Sc) As PrP(Sc)