Evidence map›Paper›PMID 40781223›Full record

ArticleNature communications2025

Glial reactivity and cognitive decline follow chronic heterochromatin loss in neurons.

A G Newman, J Sharif, P Bessa, S Zaqout, J P Brown, D Richter, R Dannenberg, M Nakayama, S Mueller, T Schaub and 6 more

Abstract read
In one paragraph

Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
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

6 citing papers in PubMed.

  1. Review
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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

16 authors.

A G NewmanInstitute of Cell and Neurobiology, Charité - Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany. andrew.newman@pm.me.ORCID http://orcid.org/0000-0002-0222-9162
J SharifDevelopmental Genetics Laboratory, Center for Integrative Medical Sciences (IMS), RIKEN National Research and Development Agency, 1-7-22 Suehiuro-cho, Tsurumi-ku, Yokohama-shi, Kanagawa-ken, Japan.ORCID http://orcid.org/0000-0003-0422-3597
P BessaInstitute of Cell and Neurobiology, Charité - Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.ORCID http://orcid.org/0000-0003-1469-5686
S ZaqoutDepartment of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, Doha, Qatar.ORCID http://orcid.org/0000-0002-3298-4425
J P BrownInstitute of Cell and Neurobiology, Charité - Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.
D RichterInstitute of Cell and Neurobiology, Charité - Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.
R DannenbergInstitute of Cell and Neurobiology, Charité - Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.
M NakayamaLaboratory of Medical Omics Research, Department of Frontier Research and Development, Kazusa DNA Research Institute, 2-6-7 Kazusa-Kamatari, Kisarazu, Chiba, Japan.ORCID http://orcid.org/0009-0001-0488-1664
S MuellerCharité-Universitätsmedizin Berlin, Charité 3R - Replace | Reduce | Refine, Charitéplatz 1, Berlin, Germany.ORCID http://orcid.org/0000-0002-5053-2211
T SchaubInstitute of Cell and Neurobiology, Charité - Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.
S ManickarajInstitute of Cell and Neurobiology, Charité - Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.
P Boehm-SturmCharité-Universitätsmedizin Berlin, Charité 3R - Replace | Reduce | Refine, Charitéplatz 1, Berlin, Germany.ORCID http://orcid.org/0000-0001-8777-4823
O OharaDepartment of Applied Genomics, Kazusa DNA Research Institute, 2-6-7 Kazusa-Kamatari, Kisarazu, Chiba, 2, Japan.ORCID http://orcid.org/0000-0002-3328-9571
H KosekiDevelopmental Genetics Laboratory, Center for Integrative Medical Sciences (IMS), RIKEN National Research and Development Agency, 1-7-22 Suehiuro-cho, Tsurumi-ku, Yokohama-shi, Kanagawa-ken, Japan.ORCID http://orcid.org/0000-0001-8424-5854
P B Singh *Institute of Cell and Neurobiology, Charité - Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany. prim.singh@nu.edu.kz.ORCID http://orcid.org/0000-0002-9571-0974
V Tarabykin *Institute of Cell and Neurobiology, Charité - Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany. tarabykinvictor@gmail.com.ORCID http://orcid.org/0000-0001-8931-7263

Funding

Deutsche Forschungsgemeinschaft (German Research Foundation) 410579311
6 · The paper itself

Abstract

In aging cells and animal models of premature aging, heterochromatin loss coincides with transcriptional disruption including the activation of normally silenced endogenous retroviruses (ERVs). Here we show that loss of heterochromatin maintenance and de-repression of ERVs result in a chronic inflammatory environment characterized by neurodegeneration and cognitive decline in mice. We identify distinct roles for HP1 proteins to ERV silencing where HP1γ is necessary and sufficient for H4K20me3 deposition and HP1β deficiency causes aberrant DNA methylation. Combined loss of HP1β and HP1γ results in loss of DNA methylation at ERVK elements. Progressive ERV de-repression in HP1β/γ DKO mice is followed by stimulation of the integrated stress response, an increase of Complement 3+ reactive astrocytes and phagocytic microglia. This chronic inflammatory state coincides with age-dependent reductions in dendrite complexity and cognition. Our results demonstrate the importance of preventing loss of epigenetic maintenance that is necessary for protection of postmitotic neuronal genomes.

Indexed as

Cognitive DysfunctionHeterochromatinNeurogliaNeuronsAnimalsAstrocytesChromobox Protein Homolog 5Chromosomal Proteins, Non-HistoneDNA MethylationEndogenous RetrovirusesEpigenesis, GeneticFemaleHistonesMaleMiceMice, Inbred C57BLChromobox Protein Homolog 5Chromosomal Proteins, Non-HistoneHeterochromatinHistones

Identifiers

PMID40781223
PMCPMC12334701

What Socratic 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 Socratic graph.