Evidence map›Paper›PMID 35133987›Full record

ArticleJCI insight2022

Regional variability and genotypic and pharmacodynamic effects on PrP concentration in the CNS.

Meredith A Mortberg, Hien T Zhao, Andrew G Reidenbach, Juliana E Gentile, Eric Kuhn, Jill O'Moore, Patrick M Dooley, Theresa R Connors, Curt Mazur, Shona W Allen and 10 more

Open access · goldAbstract read
In one paragraph

Article in JCI insight, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

21 citing papers in PubMed, 26 citations in OpenAlex.

  1. Article
  2. Article
  3. Divalent siRNA for prion disease.Nucleic acids research · 2026
    Article
  4. Article
  5. Divalent siRNA for prion disease.bioRxiv : the preprint server for biology · 2026
    Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Biomarker changes preceding symptom onset in genetic prion disease.medRxiv : the preprint server for health sciences · 2023
    Article
  16. Article
  17. Article
  18. A single-cell map of antisense oligonucleotide activity in the brain.bioRxiv : the preprint server for biology · 2023
    Article
  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

20 authors at 6 institutions in 1 country.

Meredith A MortbergStanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA.
Hien T ZhaoIonis Pharmaceuticals Inc., Carlsbad, California, USA.
Andrew G ReidenbachStanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA.
Juliana E GentileStanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA.
Eric KuhnProteomics Platform, Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, Massachusetts, USA.
Jill O'MooreMcLaughlin Research Institute, Great Falls, Montana, USA.
Patrick M DooleyMassachusetts Alzheimer's Disease Research Center, and.
Theresa R ConnorsMassachusetts Alzheimer's Disease Research Center, and.
Curt MazurIonis Pharmaceuticals Inc., Carlsbad, California, USA.
Shona W AllenMcCance Center for Brain Health, Massachusetts General Hospital, Boston, Massachusetts, USA.
Bianca A TrombettaMcCance Center for Brain Health, Massachusetts General Hospital, Boston, Massachusetts, USA.
Alison McManusMcCance Center for Brain Health, Massachusetts General Hospital, Boston, Massachusetts, USA.
Matthew R MooreBioagilytix, Boston, Massachusetts, USA.
Jiewu LiuBioagilytix, Boston, Massachusetts, USA.
Deborah E CabinMcLaughlin Research Institute, Great Falls, Montana, USA.
Holly B KordasiewiczIonis Pharmaceuticals Inc., Carlsbad, California, USA.
Joel MathewsIonis Pharmaceuticals Inc., Carlsbad, California, USA.
Steven E ArnoldMcCance Center for Brain Health, Massachusetts General Hospital, Boston, Massachusetts, USA.
Sonia M VallabhStanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA.
Eric Vallabh MinikelStanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA.
Broad Institute · USHarvard University · USIonis Pharmaceuticals (United States) · USAlzheimer’s Disease Neuroimaging Initiative · USIntralytix (United States) · USMcLaughlin Research Institute · US

Funding

Biomarkers to enable ASO prevention trials in genetic prion disease carriersR21TR003040 · NCATS · MASSACHUSETTS GENERAL HOSPITAL · PI ARNOLD, STEVEN E · 2019 to 2020
$485k
NCATS NIH HHS R21 TR003040
6 · The paper itself

Abstract

Prion protein (PrP) concentration controls the kinetics of prion replication and is a genetically and pharmacologically validated therapeutic target for prion disease. In order to evaluate PrP concentration as a pharmacodynamic biomarker and assess its contribution to known prion disease risk factors, we developed and validated a plate-based immunoassay reactive for PrP across 6 species of interest and applicable to brain and cerebrospinal fluid (CSF). PrP concentration varied dramatically across different brain regions in mice, cynomolgus macaques, and humans. PrP expression did not appear to contribute to the known risk factors of age, sex, or common PRNP genetic variants. CSF PrP was lowered in the presence of rare pathogenic PRNP variants, with heterozygous carriers of P102L displaying 55%, and D178N just 31%, of the CSF PrP concentration of mutation-negative controls. In rodents, pharmacologic reduction of brain Prnp RNA was reflected in brain parenchyma PrP and, in turn in CSF PrP, validating CSF as a sampling compartment for the effect of PrP-lowering therapy. Our findings support the use of CSF PrP as a pharmacodynamic biomarker for PrP-lowering drugs and suggest that relative reduction from individual baseline CSF PrP concentration may be an appropriate marker for target engagement.

Indexed as

Prion DiseasesPrion ProteinsPrionsAnimalsBiomarkersGenotypeHumansMiceBiomarkersPrion ProteinsPrionsNeurodegenerationNeurosciencePrionsTherapeutics

Identifiers

PMID35133987
PMCPMC8986079
OpenAlexW4210857380

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.