Evidence map›Paper›PMID 33674568›Full record

ArticleNature communications2021

Drebrin controls scar formation and astrocyte reactivity upon traumatic brain injury by regulating membrane trafficking.

Juliane Schiweck, Kai Murk, Julia Ledderose, Agnieszka Münster-Wandowski, Marta Ornaghi, Imre Vida, Britta J Eickholt

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2021. 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
2.9field-weighted citation impact, top 8% 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, 51 citations in OpenAlex.

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  11. Astrocytes at the heart of sleep: from genes to network dynamics.Cellular and molecular life sciences : CMLS · 2025
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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

7 authors at 2 institutions in 1 country.

Juliane Schiweck *Institute of Biochemistry, Charité - Universitätsmedizin Berlin, Berlin, Germany.ORCID http://orcid.org/0000-0001-9319-899X
Kai Murk *Institute of Biochemistry, Charité - Universitätsmedizin Berlin, Berlin, Germany. kai.murk@charite.de.ORCID http://orcid.org/0000-0002-6573-4529
Julia LedderoseInstitute of Biochemistry, Charité - Universitätsmedizin Berlin, Berlin, Germany.
Agnieszka Münster-WandowskiInstitute of Anatomy, Charité - Universitätsmedizin Berlin, Berlin, Germany.
Marta OrnaghiInstitute of Biochemistry, Charité - Universitätsmedizin Berlin, Berlin, Germany.
Imre VidaInstitute of Anatomy, Charité - Universitätsmedizin Berlin, Berlin, Germany.ORCID http://orcid.org/0000-0003-3214-2233
Britta J EickholtInstitute of Biochemistry, Charité - Universitätsmedizin Berlin, Berlin, Germany. britta.eickholt@charite.de.ORCID http://orcid.org/0000-0001-7873-8687
Charité - Universitätsmedizin Berlin · DEBerlin Institute of Health at Charité - Universitätsmedizin Berlin · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The brain of mammals lacks a significant ability to regenerate neurons and is thus particularly vulnerable. To protect the brain from injury and disease, damage control by astrocytes through astrogliosis and scar formation is vital. Here, we show that brain injury in mice triggers an immediate upregulation of the actin-binding protein Drebrin (DBN) in astrocytes, which is essential for scar formation and maintenance of astrocyte reactivity. In turn, DBN loss leads to defective astrocyte scar formation and excessive neurodegeneration following brain injuries. At the cellular level, we show that DBN switches actin homeostasis from ARP2/3-dependent arrays to microtubule-compatible scaffolds, facilitating the formation of RAB8-positive membrane tubules. This injury-specific RAB8 membrane compartment serves as hub for the trafficking of surface proteins involved in astrogliosis and adhesion mediators, such as β1-integrin. Our work shows that DBN-mediated membrane trafficking in astrocytes is an important neuroprotective mechanism following traumatic brain injury in mice.

Indexed as

Actin-Related Protein 2-3 ComplexActinsAnimalsAstrocytesBrainBrain InjuriesBrain Injuries, TraumaticCell MovementCentral Nervous SystemCicatrixDisease Models, AnimalGliosisMiceMice, KnockoutNeuropeptidesNeuroprotectionActin-Related Protein 2-3 ComplexActinsdrebrinsNeuropeptidesRab8 protein, mouserab GTP-Binding Proteins

Identifiers

PMID33674568
PMCPMC7935889
OpenAlexW3133559173

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.