Evidence map›Paper›PMID 21091653›Full record

ArticleBritish journal of pharmacology2011

Metformin inhibits HMGB1 release in LPS-treated RAW 264.7 cells and increases survival rate of endotoxaemic mice.

Konstantin Tsoyi, Hwa Jin Jang, Irina Tsoy Nizamutdinova, Young Min Kim, Young Soo Lee, Hye Jung Kim, Han Geuk Seo, Jae Heun Lee, Ki Churl Chang

Open access · bronzeAbstract read
In one paragraph

Article in British journal of pharmacology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 75 papers.

0numbers the graph read from it
0cells of the map it votes in
75citing papers in PubMed
4.9field-weighted citation impact, top 4% 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

75 citing papers in PubMed, 156 citations in OpenAlex.

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  8. The anti-inflammatory effect of metformin: The molecular targets.Genes to cells : devoted to molecular & cellular mechanisms · 2024
    Review
  9. Review
  10. Article
  11. Review
  12. Article
  13. Observational
  14. Review
  15. Article
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  17. High Mobility Group Proteins in Sepsis.Frontiers in immunology · 2022
    Review
  18. Review
  19. Review
  20. Review

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

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 1 institution in 1 country.

Konstantin TsoyiDepartment of Pharmacology, School of Medicine and Institute of Health Sciences, Gyeongsang National University, Jinju, Korea.
Hwa Jin Jang
Irina Tsoy Nizamutdinova
Young Min Kim
Young Soo Lee
Hye Jung Kim
Han Geuk Seo
Jae Heun Lee
Ki Churl Chang
Gyeongsang National University · KR

Funding

RESPIRATORY RESEARCHT32HL007633 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI George R Washko · 1985 to 2026
$14.9M
NHLBI NIH HHS T32 HL007633
6 · The paper itself

Abstract

background and purposeRecently, metformin, a well-known anti-diabetic drug, has been shown to possess anti-inflammatory activities. This study investigated the effect of metformin on the expression of pro-inflammatory cytokines including high mobility group box 1 (HMGB1) in lipopolysaccharide (LPS)-treated animals and cells. EXPERIMENTAL APPROACH: We investigated whether metformin inhibits the release of HMGB1 in LPS-treated RAW 264.7 cells and increases survival rate in endotoxaemic mice (lethal endotoxaemia was induced by an i.p. injection of LPS). This was achieved by a range of techniques including Western blotting, enzyme-linked immunosorbent assay, specific pharmacological inhibitors, knock out of α(1) -subunit of AMP-activated protein kinase (AMPK) and recombinant HMGB1. KEY

resultsBoth pre- and post-treatment with metformin significantly improved survival of animals during lethal endotoxaemia (survival rate was monitored up to 2 weeks), decreased serum levels of tumour necrosis factor-alpha (TNF-α), interleukin-1β, HMGB1 expression and myeloperoxidase activity in lungs. However, metformin failed to improve survival in endotoxaemic animals that had additionally been treated with recombinant HMGB1. In an in vitro study, metformin dose-dependently inhibited production of pro-inflammatory cytokines and HMGB1 release. Metformin activated AMPK by its phosphorylation. Compound C (pharmacological inhibitor of AMPK) and siAMPKα1 reversed the anti-inflammatory effect of metformin in LPS-treated cells. CONCLUSIONS AND IMPLICATIONS: Our data indicate that metformin significantly attenuates the pro-inflammatory response induced by LPS both in vivo and in vitro. Metformin improved survival in a mouse model of lethal endotoxaemia by inhibiting HMGB1 release. AMPK activation was implicated as one of the mechanisms contributing to this inhibition of HMGB1 secretion.

Indexed as

AMP-Activated Protein KinasesAnimalsCells, CulturedCytokinesEndotoxemiaHMGB1 ProteinInterleukin-1betaLipopolysaccharidesMacrophagesMaleMetforminMiceMice, Inbred BALB CPeroxidasePyrazolesPyrimidinesAMP-Activated Protein KinasesCytokinesdorsomorphinHMGB1 ProteinInterleukin-1betaLipopolysaccharidesMetforminPeroxidasePyrazolesPyrimidinesTumor Necrosis Factor-alpha

Identifiers

PMID21091653
PMCPMC3057288
OpenAlexW1488394086

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.