Evidence map›Paper›PMID 21997293›Full record

ArticleEMBO reports2011

Mutability of prions.

Jiali Li, Sukhvir P Mahal, Cheryl A Demczyk, Charles Weissmann

Open access · bronzeAbstract read
In one paragraph

Article in EMBO reports, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

31 citing papers in PubMed, 36 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. The role of prion strain diversity in the development of successful therapeutic treatments.Progress in molecular biology and translational science · 2020
    Review
  9. Review
  10. Article
  11. Review
  12. Biology and Genetics of PrP Prion Strains.Cold Spring Harbor perspectives in medicine · 2017
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article
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

4 authors at 2 institutions in 1 country.

Jiali LiDepartment of Infectology, Scripps Florida, 130 Scripps Way, Jupiter, Florida 33458, USA.
Sukhvir P Mahal
Cheryl A Demczyk
Charles Weissmann
Scripps Institution of Oceanography · USScripps Research Institute · US

Funding

Emergence of drug resistance in prion populationsR01NS067214 · NINDS · SCRIPPS RESEARCH INSTITUTE, THE · PI SMITH, ROY G · 2010 to 2013
$1.7M
NINDS NIH HHS 1R01NS067214NINDS NIH HHS R01 NS067214PHS HHS 1R01NSO59543
6 · The paper itself

Abstract

Murine prions transferred from brain to cultured cells gradually adapt to the new environment. Brain-derived 22L prions can infect neuroblastoma-derived PK1 cells in the presence of swainsonine (swa); that is, they are 'swa resistant'. PK1 cell-adapted 22L prions are swa sensitive; however, propagation in swa results in selection of swa-resistant substrains. Cloned, PK1 cell-adapted 22L prions were initially unable to develop swa resistance ('swa incompetent'); however, after serial propagation for 30-90 doublings, four of nine clones became swa competent, showing that swa-resistant 'mutants' arose during replication. Mutations in the case of prions are attributed to heritable changes in PrP(Sc) conformation. One clone remained swa incompetent even after 10(35)-fold expansion; surprisingly, after propagation in brain, it yielded swa-resistant prions, indistinguishable from the original 22L population. Thus, cell-adapted 22L prions assumed either mutable or virtually immutable conformations; however, when passaged through the brain all became mutable. Mutability is thus a substrain-specific attribute.

Indexed as

AnimalsBrainCell LineClone CellsDrug ResistanceHumansMiceMice, Inbred C57BLModels, BiologicalMutationPrionsSwainsonineTissue ExtractsPrionsSwainsonineTissue Extracts

Identifiers

PMID21997293
PMCPMC3245691
OpenAlexW2135728898

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.