Evidence map›Paper›PMID 12970413›Full record

ArticleJournal of virology2003

New inhibitors of scrapie-associated prion protein formation in a library of 2000 drugs and natural products.

David A Kocisko, Gerald S Baron, Richard Rubenstein, Jiancao Chen, Salomon Kuizon, Byron Caughey

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 97 papers.

0numbers the graph read from it
0cells of the map it votes in
97citing papers in PubMed
5.1field-weighted citation impact, top 4% of its field
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

97 citing papers in PubMed, 232 citations in OpenAlex.

  1. Review
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  4. Adaptation of the protein misfolding cyclic amplification (PMCA) technique for the screening of anti-prion compounds.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2024
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  9. The Effect ofInternational journal of molecular sciences · 2022
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  12. Review
  13. Article
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  16. Anti-prion Drugs Targeting the Protein Folding Activity of the Ribosome Reduce PABPN1 Aggregation.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2021
    Article
  17. Review
  18. Article
  19. Article
  20. Article

37 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 4 institutions in 2 countries.

David A KociskoLaboratory of Persistent Viral Diseases, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana 59840, USA.
Gerald S Baron
Richard Rubenstein
Jiancao Chen
Salomon Kuizon
Byron Caughey
National Institutes of Health · USNew York State Office for People With Developmental Disabilities · USNational Institute of Allergy and Infectious Diseases · USSichuan Entry-Exit Inspection and Quarantine Bureau · CN

Funding

Structures and Activities of Prions and Prion Proteins ZIAAI000580 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI CAUGHEY, BYRON · 2009 to 2025
$8.9M
BIOCHEMISTRY OF SCRAPIE PATHOGENESISZ01AI000580 · NIAID · NIAID EXTRAMURAL ACTIVITIES · PI CAUGHEY, BYRON · 1990 to 2008
$4.8M
6 · The paper itself

Abstract

Transmissible spongiform encephalopathies (TSEs) are fatal, untreatable neurodegenerative diseases associated with the accumulation of a disease-specific form of prion protein (PrP) in the brain. One approach to TSE therapeutics is the inhibition of PrP accumulation. Indeed, many inhibitors of the accumulation of PrP associated with scrapie (PrP(Sc)) in scrapie-infected mouse neuroblastoma cells (ScN(2)a) also have antiscrapie activity in rodents. To expedite the search for potential TSE therapeutic agents, we have developed a high-throughput screening assay for PrP(Sc) inhibitors using ScN(2)a cells in a 96-well format. A library of 2000 drugs and natural products was screened in ScN(2)a cells infected with scrapie strain RML (Chandler) or 22L. Forty compounds were found to have concentrations causing 50% inhibition (IC(50)s) of PrP(Sc) accumulation of <or=10 microM against both strains. Seventeen had IC(50)s of <or=1 microM against both strains. Several classes of compounds were represented in the 17 most potent inhibitors, including naturally occurring polyphenols (e.g., tannic acid and tea extracts), phenothiazines, antihistamines, statins, and antimalarial compounds. These 17 compounds were also evaluated in a solid-phase cell-free hamster PrP conversion assay. Only the polyphenols inhibited the cell-free reaction, and their IC(50)s were near 100 nM. Several of the new PrP(Sc) inhibitors cross the blood-brain barrier and thus have potential to be effective after TSE infection reaches the brain. The fact that many are either approved human drugs or edible natural products should facilitate their use in animal testing and clinical trials.

Indexed as

FlavonoidsAnimalsAntimalarialsBiological ProductsHistamine AntagonistsHumansPhenolsPolymersPolyphenolsPrPSc ProteinsAntimalarialsBiological ProductsFlavonoidsHistamine AntagonistsPhenolsPolymersPolyphenolsPrPSc Proteins

Identifiers

PMID12970413
PMCPMC228499
OpenAlexW2128014215

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.