Evidence map›Paper›PMID 19525961›Full record

ArticleNature medicine2009

A selective inhibitor of the immunoproteasome subunit LMP7 blocks cytokine production and attenuates progression of experimental arthritis.

Tony Muchamuel, Michael Basler, Monette A Aujay, Erika Suzuki, Khalid W Kalim, Christoph Lauer, Catherine Sylvain, Eileen R Ring, Jamie Shields, Jing Jiang and 6 more

Erratum issuedAbstract read
PubMed Publisher
In one paragraph

Article in Nature medicine, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 301 papers.

0numbers the graph read from it
0cells of the map it votes in
301citing papers in PubMed
15.2field-weighted citation impact, top 1% 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

301 citing papers in PubMed, 590 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Dissecting Complex Interactions Between Ferroptosis and the Proteasome.bioRxiv : the preprint server for biology · 2026
    Article
  6. Review
  7. Review
  8. Review
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. The immunoproteasome regulates ILC2 responses by modulating mitochondrial capacity.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  15. Article
  16. Review
  17. [Protein biomarker screening and functional analysis of salivary exosomes in patients with ulcerative colitis].Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences · 2025
    Article
  18. Review
  19. Synthesis and Application of Bioactive N-Functionalized Aziridines.Angewandte Chemie (International ed. in English) · 2025
    Review
  20. Review

241 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

16 authors at 1 institution in 2 countries.

Tony MuchamuelProteolix, Inc., South San Francisco, California, USA.
Michael Basler
Monette A Aujay
Erika Suzuki
Khalid W Kalim
Christoph Lauer
Catherine Sylvain
Eileen R Ring
Jamie Shields
Jing Jiang
Peter Shwonek
Francesco Parlati
Susan D Demo
Mark K Bennett
Christopher J Kirk
Marcus Groettrup
University of Konstanz · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The immunoproteasome, a distinct class of proteasome found predominantly in monocytes and lymphocytes, is known to shape the antigenic repertoire presented on class I major histocompatibility complexes (MHC-I). However, a specific role for the immunoproteasome in regulating other facets of immune responses has not been established. We describe here the characterization of PR-957, a selective inhibitor of low-molecular mass polypeptide-7 (LMP7, encoded by Psmb8), the chymotrypsin-like subunit of the immunoproteasome. PR-957 blocked presentation of LMP7-specific, MHC-I-restricted antigens in vitro and in vivo. Selective inhibition of LMP7 by PR-957 blocked production of interleukin-23 (IL-23) by activated monocytes and interferon-gamma and IL-2 by T cells. In mouse models of rheumatoid arthritis, PR-957 treatment reversed signs of disease and resulted in reductions in cellular infiltration, cytokine production and autoantibody levels. These studies reveal a unique role for LMP7 in controlling pathogenic immune responses and provide a therapeutic rationale for targeting LMP7 in autoimmune disorders.

Indexed as

Proteasome InhibitorsAnimalsAntigen PresentationArthritis, ExperimentalCytokinesDisease ProgressionFemaleHumansLymphocytic choriomeningitis virusMaleMiceMice, Inbred BALB CMice, Inbred C57BLMice, Inbred DBAMultienzyme ComplexesOligopeptidesCytokinesLMP7 proteinMultienzyme ComplexesOligopeptidesPR-957Proteasome Endopeptidase ComplexProteasome Inhibitors

Identifiers

PMID19525961
OpenAlexW1974010669

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.