Evidence map›Paper›PMID 24878959›Full record

ArticleThe Journal of biological chemistry2014

Nuclear translocation uncovers the amyloid peptide Aβ42 as a regulator of gene transcription.

Christian Barucker, Anja Harmeier, Joerg Weiske, Beatrix Fauler, Kai Frederik Albring, Stefan Prokop, Peter Hildebrand, Rudi Lurz, Frank L Heppner, Otmar Huber and 1 more

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 1 pooled it
5.0field-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

48 citing papers in PubMed, 1 synthesis or guideline pooled it, 74 citations in OpenAlex.

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  19. Evaluation of Amyloid Inhibitor Efficiency to Block Bacterial Survival.Methods in molecular biology (Clifton, N.J.) · 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

11 authors at 6 institutions in 2 countries.

Christian BaruckerFrom the Institut fuer Chemie und Biochemie, Freie Universitaet Berlin, 14195 Berlin, Germany, the Department of Pharmacology and Therapeutics, Faculty of Medicine, McGill University, Montreal, Quebec H3G 0B1, Canada.
Anja HarmeierFrom the Institut fuer Chemie und Biochemie, Freie Universitaet Berlin, 14195 Berlin, Germany.
Joerg Weiskethe Institute of Clinical Chemistry and Pathobiochemistry, Charite-Campus Benjamin Franklin, 12203 Berlin, Germany.
Beatrix Faulerthe Max Planck Institute for Molecular Genetics, 14195 Berlin, Germany.
Kai Frederik Albringthe Institute of Clinical Chemistry and Pathobiochemistry, Charite-Campus Benjamin Franklin, 12203 Berlin, Germany, the Institute of Biochemistry II, Jena University Hospital, Friedrich Schiller University, 07743 Jena, Germany, and.
Stefan Prokopthe Department of Neuropathology.
Peter HildebrandInstitute of Medical Physics and Biophysics, Charite-Universitätsmedizin Berlin, 10117 Berlin, Germany.
Rudi Lurzthe Max Planck Institute for Molecular Genetics, 14195 Berlin, Germany.
Frank L Heppnerthe Department of Neuropathology.
Otmar Huberthe Institute of Clinical Chemistry and Pathobiochemistry, Charite-Campus Benjamin Franklin, 12203 Berlin, Germany, the Institute of Biochemistry II, Jena University Hospital, Friedrich Schiller University, 07743 Jena, Germany, and.
Gerhard MulthaupFrom the Institut fuer Chemie und Biochemie, Freie Universitaet Berlin, 14195 Berlin, Germany, the Department of Pharmacology and Therapeutics, Faculty of Medicine, McGill University, Montreal, Quebec H3G 0B1, Canada, gerhard.multhaup@mcgill.ca.
Charité - Universitätsmedizin Berlin · DEFreie Universität Berlin · DEMax Planck Institute for Molecular Genetics · DEFriedrich Schiller University Jena · DEJena University Hospital · DEMcGill University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although soluble species of the amyloid-β peptide Aβ42 correlate with disease symptoms in Alzheimer disease, little is known about the biological activities of amyloid-β (Aβ). Here, we show that Aβ peptides varying in lengths from 38 to 43 amino acids are internalized by cultured neuroblastoma cells and can be found in the nucleus. By three independent methods, we demonstrate direct detection of nuclear Aβ42 as follows: (i) biochemical analysis of nuclear fractions; (ii) detection of biotin-labeled Aβ in living cells by confocal laser scanning microscopy; and (iii) transmission electron microscopy of Aβ in cultured cells, as well as brain tissue of wild-type and transgenic APPPS1 mice (overexpression of amyloid precursor protein and presenilin 1 with Swedish and L166P mutations, respectively). Also, this study details a novel role for Aβ42 in nuclear signaling, distinct from the amyloid precursor protein intracellular domain. Chromatin immunoprecipitation showed that Aβ42 specifically interacts as a repressor of gene transcription with LRP1 and KAI1 promoters. By quantitative RT-PCR, we confirmed that mRNA levels of the examined candidate genes were exclusively decreased by the potentially neurotoxic Aβ42 wild-type peptide. Shorter peptides (Aβ38 or Aβ40) and other longer peptides (nontoxic Aβ42 G33A substitution or Aβ43) did not affect mRNA levels. Overall, our data indicate that the nuclear translocation of Aβ42 impacts gene regulation, and deleterious effects of Aβ42 in Alzheimer disease pathogenesis may be influenced by altering the expression profiles of disease-modifying genes.

Indexed as

Active Transport, Cell NucleusAlzheimer DiseaseAmino Acid SubstitutionAmyloid beta-PeptidesAmyloid beta-Protein PrecursorAnimalsCell LineGene Expression RegulationHEK293 CellsHumansMiceMice, KnockoutMice, TransgenicModels, MolecularMutagenesis, Site-DirectedNeuronsAmyloid beta-Peptidesamyloid beta-protein (1-42)Amyloid beta-Protein PrecursorAPP protein, humanPeptide FragmentsPresenilin-1PSEN1 protein, humanRecombinant ProteinsRNA, MessengerAlzheimer DiseaseAmyloidAmyloid β42-Chromatin InteractionAmyloid β42 ToxicityChromatin Immunoprecipitation (ChiP)Gene RegulationNuclear Amyloid β PeptidesRNA

Identifiers

PMID24878959
PMCPMC4106333
OpenAlexW2064770792

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.