Evidence map›Paper›PMID 29574582›Full record

ArticleCellular and molecular life sciences : CMLS2018

Prion protein cleavage fragments regulate adult neural stem cell quiescence through redox modulation of mitochondrial fission and SOD2 expression.

Steven J Collins, Carolin Tumpach, Bradley R Groveman, Simon C Drew, Cathryn L Haigh

Open access · hybridAbstract read
In one paragraph

Article in Cellular and molecular life sciences : CMLS, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.3field-weighted citation impact, top 20% 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

18 citing papers in PubMed, 23 citations in OpenAlex.

  1. Review
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  5. Prion Protein: The Molecule of Many Forms and Faces.International journal of molecular sciences · 2022
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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

5 authors at 3 institutions in 2 countries.

Steven J CollinsDepartment of Medicine (Royal Melbourne Hospital), The University of Melbourne, Melbourne, VIC, 3010, Australia.ORCID http://orcid.org/0000-0002-5245-6611
Carolin TumpachDoherty Institute, The University of Melbourne, Melbourne, VIC, 3010, Australia.ORCID http://orcid.org/0000-0002-4851-652X
Bradley R GrovemanLaboratory of Persistent Viral Diseases, Rocky Mountain Laboratories, NIAID, NIH, Hamilton, 59840, USA.ORCID http://orcid.org/0000-0002-5059-7672
Simon C DrewDepartment of Medicine (Royal Melbourne Hospital), The University of Melbourne, Melbourne, VIC, 3010, Australia.ORCID http://orcid.org/0000-0002-1459-9865
Cathryn L HaighDepartment of Medicine (Royal Melbourne Hospital), The University of Melbourne, Melbourne, VIC, 3010, Australia. cathryn.haigh@nih.gov.ORCID http://orcid.org/0000-0001-7591-1149
The Royal Melbourne Hospital · AUNikon (United States) · USThe University of Melbourne · AU

Funding

Prion protein function in redox homeostasis and associated failure in prion diseaseZIAAI001219 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI HAIGH, CATHRYN · 2017 to 2025
$10.0M
CJDSGN Rhonda McCoy Memorial GrantNational Health and Medical Research Council APP1105784National Institute of Allergy and Infectious Diseases Intramural Research ProgramUniversity of Melbourne MDHS Fellowship
6 · The paper itself

Abstract

Neurogenesis continues in the post-developmental brain throughout life. The ability to stimulate the production of new neurones requires both quiescent and actively proliferating pools of neural stem cells (NSCs). Actively proliferating NSCs ensure that neurogenic demand can be met, whilst the quiescent pool makes certain NSC reserves do not become depleted. The processes preserving the NSC quiescent pool are only just beginning to be defined. Herein, we identify a switch between NSC proliferation and quiescence through changing intracellular redox signalling. We show that N-terminal post-translational cleavage products of the prion protein (PrP) induce a quiescent state, halting NSC cellular growth, migration, and neurite outgrowth. Quiescence is initiated by the PrP cleavage products through reducing intracellular levels of reactive oxygen species. First, inhibition of redox signalling results in increased mitochondrial fission, which rapidly signals quiescence. Thereafter, quiescence is maintained through downstream increases in the expression and activity of superoxide dismutase-2 that reduces mitochondrial superoxide. We further observe that PrP is predominantly cleaved in quiescent NSCs indicating a homeostatic role for this cascade. Our findings provide new insight into the regulation of NSC quiescence, which potentially could influence brain health throughout adult life.

Indexed as

Cell DifferentiationMitochondrial DynamicsAdult Stem CellsAnimalsCell ProliferationCells, CulturedMice, KnockoutMice, TransgenicNeural Stem CellsOxidation-ReductionPeptide FragmentsPrion ProteinsRNA InterferenceSuperoxide DismutaseSuperoxide Dismutase 2SuperoxidesPeptide FragmentsPrion ProteinsSuperoxide DismutaseSuperoxide Dismutase 2SuperoxidesDRP1MitochondriaN1N2NADPH oxidaseNox2Reactive oxygen speciesSOD2Superoxide dismutase

Identifiers

PMID29574582
PMCPMC6063333
OpenAlexW2790720483

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.