Evidence map›Paper›PMID 36275769›Full record

ArticleFrontiers in immunology2022

Immunoproteasomes control activation of innate immune signaling and microglial function.

Gonca Çetin, Maja Studencka-Turski, Simone Venz, Eileen Schormann, Heike Junker, Elke Hammer, Uwe Völker, Frédéric Ebstein, Elke Krüger

Open access · goldAbstract read
In one paragraph

Article in Frontiers in immunology, 2022. 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
1.8field-weighted citation impact, top 14% 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, 24 citations in OpenAlex.

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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

9 authors at 2 institutions in 1 country.

Gonca ÇetinInstitute of Medical Biochemistry and Molecular Biology, University Medicine Greifswald, Greifswald, Germany.
Maja Studencka-TurskiInstitute of Medical Biochemistry and Molecular Biology, University Medicine Greifswald, Greifswald, Germany.
Simone VenzInstitute of Medical Biochemistry and Molecular Biology, University Medicine Greifswald, Greifswald, Germany.
Eileen SchormannInstitute of Biochemistry, Charité - University Medicine Berlin, Berlin, Germany.
Heike JunkerInstitute of Medical Biochemistry and Molecular Biology, University Medicine Greifswald, Greifswald, Germany.
Elke HammerInterfaculty Institute of Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany.
Uwe VölkerInterfaculty Institute of Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany.
Frédéric EbsteinInstitute of Medical Biochemistry and Molecular Biology, University Medicine Greifswald, Greifswald, Germany.
Elke KrügerInstitute of Medical Biochemistry and Molecular Biology, University Medicine Greifswald, Greifswald, Germany.
Universitätsmedizin Greifswald · DECharité - Universitätsmedizin Berlin · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Microglia are the resident immune cells of the central nervous system (CNS) and play a major role in the regulation of brain homeostasis. To maintain their cellular protein homeostasis, microglia express standard proteasomes and immunoproteasomes (IP), a proteasome isoform that preserves protein homeostasis also in non-immune cells under challenging conditions. The impact of IP on microglia function in innate immunity of the CNS is however not well described. Here, we establish that IP impairment leads to proteotoxic stress and triggers the unfolded and integrated stress responses in mouse and human microglia models. Using proteomic analysis, we demonstrate that IP deficiency in microglia results in profound alterations of the ubiquitin-modified proteome among which proteins involved in the regulation of stress and immune responses. In line with this, molecular analysis revealed chronic activation of NF-κB signaling in IP-deficient microglia without further stimulus. In addition, we show that IP impairment alters microglial function based on markers for phagocytosis and motility. At the molecular level IP impairment activates interferon signaling promoted by the activation of the cytosolic stress response protein kinase R. The presented data highlight the importance of IP function for the proteostatic potential as well as for precision proteolysis to control stress and immune signaling in microglia function.

Indexed as

MicrogliaNF-kappa BAnimalsHumansInterferonsMicePhagocytosisProteasome Endopeptidase ComplexProtein KinasesProteomeProteomicsUbiquitinsInterferonsNF-kappa BProteasome Endopeptidase ComplexProtein KinasesProteomeUbiquitinsCNSimmunoproteasomemicroglianeuroinflammationproteomicsproteostasisUPS

Identifiers

PMID36275769
PMCPMC9584546
OpenAlexW4303188619

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.