ReviewPrion
PrP overdrive: does inhibition of α-cleavage contribute to PrP(C) toxicity and prion disease?
Review in Prion. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
18 citing papers in PubMed, 28 citations in OpenAlex.
- Prion Protein: The Molecule of Many Forms and Faces.International journal of molecular sciences · 2022Review
- Melatonin: Regulation of Prion Protein Phase Separation in Cancer Multidrug Resistance.Molecules (Basel, Switzerland) · 2022Review
- Neuroprotective effect and potential of cellular prion protein and its cleavage products for treatment of neurodegenerative disorders part I. a literature review.Expert review of neurotherapeutics · 2021Review
- Neuroprotective effect and potential of cellular prion protein and its cleavage products for treatment of neurodegenerative disorders part II: strategies for therapeutics development.Expert review of neurotherapeutics · 2021Article
- Harnessing the Physiological Functions of Cellular Prion Protein in the Kidneys: Applications for Treating Renal Diseases.Biomolecules · 2021Review
- Characterization of brain-derived extracellular vesicles reveals changes in cellular origin after stroke and enrichment of the prion protein with a potential role in cellular uptake.Journal of extracellular vesicles · 2020Article
- Show Me Your Friends and I Tell You Who You Are: The Many Facets of Prion Protein in Stroke.Cells · 2020Review
- Intrinsic toxicity of the cellular prion protein is regulated by its conserved central region.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2020Article
- Review
- Prion protein modulates endothelial to mesenchyme-like transition in trabecular meshwork cells: Implications for primary open angle glaucoma.Scientific reports · 2019Article
- Structural Determinants of the Prion Protein N-Terminus and Its Adducts with Copper Ions.International journal of molecular sciences · 2018Review
- Article
- Prion protein facilitates retinal iron uptake and is cleaved at the β-site: Implications for retinal iron homeostasis in prion disorders.Scientific reports · 2017Article
- Elucidating the function of the prion protein.PLoS pathogens · 2017Review
- Isolation of a Defective Prion Mutant from Natural Scrapie.PLoS pathogens · 2016Article
- Domain-Specific Activation of Death-Associated Intracellular Signalling Cascades by the Cellular Prion Protein in Neuroblastoma Cells.Molecular neurobiology · 2016Article
- Article
- The Cellular Prion Protein: A Player in Immunological Quiescence.Frontiers in immunology · 2015Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors at 2 institutions in 1 country.
Funding
Abstract
Knockout of the cellular prion protein (PrP(C)) in mice is tolerated, as is complete elimination of the protein's N-terminal domain. However, deletion of select short segments between the N- and C-terminal domains is lethal. How can one reconcile this apparent paradox? Research over the last few years demonstrates that PrP(C) undergoes α-cleavage in the vicinity of residue 109 (mouse sequence) to release the bioactive N1 and C1 fragments. In biophysical studies, we recently characterized the action of relevant members of the ADAM (A Disintegrin And Metalloproteinase) enzyme family (ADAM8, 10, and 17) and found that they all produce α-cleavage, but at 3 distinct cleavage sites, with proteolytic efficiency modulated by the physiologic metals copper and zinc. Remarkably, the shortest lethal deletion segment in PrP(C) fully encompasses the 3 α-cleavage sites. Analysis of all reported PrP(C) deletion mutants suggests that elimination of α-cleavage, coupled with retention of the protein's N-terminal residues, segments 23-31 and longer, confers the lethal phenotype. Interestingly, these N-terminal residues are implicated in the activation of several membrane proteins, including synaptic glutamate receptors. We propose that α-cleavage is a general mechanism essential for downregulating PrP(C)'s intrinsic activity, and that blockage of proteolysis leads to constitutively active PrP(C) and consequent dyshomeostasis.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.