Evidence map›Paper›PMID 19561096›Full record

ArticleJournal of immunology (Baltimore, Md. : 1950)2009

Role of MAPK kinase 6 in arthritis: distinct mechanism of action in inflammation and cytokine expression.

Toshio Yoshizawa, Deepa Hammaker, David L Boyle, Maripat Corr, Richard Flavell, Roger Davis, Georg Schett, Gary S Firestein

Open access · bronzeAbstract read
In one paragraph

Article in Journal of immunology (Baltimore, Md. : 1950), 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.2field-weighted citation impact, top 13% 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

25 citing papers in PubMed, 42 citations in OpenAlex.

  1. Article
  2. The Challenges of Local Intra-Articular Therapy.Medicina (Kaunas, Lithuania) · 2024
    Review
  3. Review
  4. Non-'classical' MEKs: A review of MEK3-7 inhibitors.Bioorganic & medicinal chemistry letters · 2020
    Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Cellular targeting in autoimmunity.Current allergy and asthma reports · 2012
    Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
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

8 authors at 4 institutions in 2 countries.

Toshio YoshizawaDivision of Rheumatology, Allergy and Immunology, University of California San Diego, School of Medicine, La Jolla, CA 92093, USA.
Deepa Hammaker
David L Boyle
Maripat Corr
Richard Flavell
Roger Davis
Georg Schett
Gary S Firestein
La Jolla Institute for Immunology · USFriedrich-Alexander-Universität Erlangen-Nürnberg · DEUniversity of Massachusetts Chan Medical School · USYale University · US

Funding

Regulation of p38 and inflammation by MAPK kinasesR01AI070555 · NIAID · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI FIRESTEIN, GARY S · 2006 to 2016
$3.8M
Innate immunity and the IKKi complex in Rheumatoid Arthritis (RA) synoviumR01AI067752 · NIAID · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI FIRESTEIN, GARY S · 2007 to 2011
$1.7M
NIAID NIH HHS AI067752NIAID NIH HHS AI070555NIAID NIH HHS R01 AI067752NIAID NIH HHS R01 AI070555
6 · The paper itself

Abstract

Development of p38alpha inhibitors for rheumatoid arthritis has been hindered by toxicity and limited efficacy. Therefore, we evaluated whether MKK6, an upstream kinase that regulates multiple p38 isoforms, might be an alternative therapeutic target in inflammatory arthritis. Wild-type (WT), MKK6(-/-), and MKK3(-/-) mice were administered K/BxN serum to induce arthritis. Articular expression of activated kinases and cytokines was determined by Western blot, qPCR, ELISA, and multiplex analysis. Immunoprecipitation and confocal microscopy experiments were performed to determine the subcellular location of MKK6, P-p38, and MAPKAPK2 (MK2). Arthritis scores were significantly lower in MKK6(-/-) mice compared with WT mice. Joint destruction and osteoclast differentiation were lower in MKK6(-/-), as were articular IL-6 and matrix metalloproteinase-3 expression. Phospho-p38 levels were modestly decreased in the joints of arthritic MKK6(-/-) mice compared with WT but were significantly higher than MKK3(-/-) mice. P-MK2 was low in MKK6(-/-) and MKK3(-/-) mice. Uncoupled p38 and MK2 activation was also observed in cultured, MKK6(-/-) FLS and confirmed using kinase assays. Immunoprecipitation assays and confocal microscopy showed that P-p38 and MK2 colocalized in activated WT but not MKK6(-/-) FLS. Distinct patterns of cytokine production were observed in MKK6(-/-) and MKK3(-/-) cells. MKK6 deficiency suppresses inflammatory arthritis and joint destruction, suggesting it might be a therapeutic target for inflammation. Although MKK3 and MKK6 activate the p38 pathway, they regulate distinct subsets of proinflammatory cytokines. MKK6 appears mainly to facilitate p38 and MK2 colocalization in the nucleus rather than to phosphorylate p38.

Indexed as

Active Transport, Cell NucleusAnimalsArthritis, ExperimentalCartilage, ArticularCytokinesInflammationIntracellular Signaling Peptides and ProteinsMAP-Kinase-Activated Kinase 2MAP Kinase Kinase 3MAP Kinase Kinase 6Micep38 Mitogen-Activated Protein KinasesProtein Serine-Threonine KinasesCytokinesIntracellular Signaling Peptides and ProteinsMap2k3 protein, mouseMAP-Kinase-Activated Kinase 2MAP Kinase Kinase 3MAP Kinase Kinase 6p38 Mitogen-Activated Protein KinasesProtein Serine-Threonine Kinases

Identifiers

PMID19561096
PMCPMC2744479
OpenAlexW1490660216

What OpenQuestion holds

Textmetadata
LicenceTDM
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.