Evidence map›Paper›PMID 38017481›Full record

ArticleCardiovascular diabetology2023

Genetic deletion of MMP12 ameliorates cardiometabolic disease by improving insulin sensitivity, systemic inflammation, and atherosclerotic features in mice.

Melina Amor, Valentina Bianco, Martin Buerger, Margarete Lechleitner, Nemanja Vujić, Anja Dobrijević, Alena Akhmetshina, Anita Pirchheim, Birgit Schwarz, Ariane R Pessentheiner and 15 more

Open access · goldAbstract read
In one paragraph

Article in Cardiovascular diabetology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
8.1field-weighted citation impact, top 2% 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

21 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

25 authors at 6 institutions in 4 countries.

Melina AmorGottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Neue Stiftingtalstrasse 6/4, Graz, 8010, Austria.
Valentina BiancoGottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Neue Stiftingtalstrasse 6/4, Graz, 8010, Austria.
Martin BuergerGottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Neue Stiftingtalstrasse 6/4, Graz, 8010, Austria.
Margarete LechleitnerGottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Neue Stiftingtalstrasse 6/4, Graz, 8010, Austria.
Nemanja VujićGottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Neue Stiftingtalstrasse 6/4, Graz, 8010, Austria.
Anja DobrijevićGottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Neue Stiftingtalstrasse 6/4, Graz, 8010, Austria.
Alena AkhmetshinaGottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Neue Stiftingtalstrasse 6/4, Graz, 8010, Austria.
Anita PirchheimGottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Neue Stiftingtalstrasse 6/4, Graz, 8010, Austria.
Birgit SchwarzGottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Neue Stiftingtalstrasse 6/4, Graz, 8010, Austria.
Ariane R PessentheinerGottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Neue Stiftingtalstrasse 6/4, Graz, 8010, Austria.
Franziska BaumgartnerInstitute of Biomechanics, Graz University of Technology, Graz, Austria.
Katharina RampitschInstitute of Biomechanics, Graz University of Technology, Graz, Austria.
Silvia SchauerDiagnostics and Research Institute of Pathology, Medical University of Graz, Graz, Austria.
Iva KlobučarSisters of Charity, University Hospital Centre, Zagreb, Croatia.
Vesna DegoricijaUniversity of Zagreb School of Medicine, Zagreb, Croatia.
Gudrun PregartnerInstitute for Medical Informatics, Statistics and Documentation, Medical University of Graz, Graz, Austria.
Daniel KummerGottfried Schatz Research Center, Cell Biology, Histology and Embryology, Medical University of Graz, Graz, Austria.
Monika SveclaDepartment of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy.
Gerhard SommerInstitute of Biomechanics, Graz University of Technology, Graz, Austria.
Dagmar KolbGottfried Schatz Research Center, Cell Biology, Histology and Embryology, Medical University of Graz, Graz, Austria.
Gerhard A HolzapfelInstitute of Biomechanics, Graz University of Technology, Graz, Austria.
Gerald HoeflerDiagnostics and Research Institute of Pathology, Medical University of Graz, Graz, Austria.
Saša FrankGottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Neue Stiftingtalstrasse 6/4, Graz, 8010, Austria.
Giuseppe Danilo NorataDepartment of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy.
Dagmar KratkyGottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Neue Stiftingtalstrasse 6/4, Graz, 8010, Austria. dagmar.kratky@medunigraz.at.
Medical University of Graz · ATBioTechMed-Graz · ATGraz University of Technology · ATSisters of Charity Hospital · HRUniversity of Milan · ITMedical University of Vienna · AT

Funding

Austrian Science Fund FWF F 7301Austrian Science Fund FWF F 7305Austrian Science Fund FWF P 27070Austrian Science Fund FWF P 30882Austrian Science Fund FWF P 32400Austrian Science Fund FWF W 1226
6 · The paper itself

Abstract

backgroundMatrix metalloproteinase 12 (MMP12) is a macrophage-secreted protein that is massively upregulated as a pro-inflammatory factor in metabolic and vascular tissues of mice and humans suffering from cardiometabolic diseases (CMDs). However, the molecular mechanisms explaining the contributions of MMP12 to CMDs are still unclear.

methodsWe investigated the impact of MMP12 deficiency on CMDs in a mouse model that mimics human disease by simultaneously developing adipose tissue inflammation, insulin resistance, and atherosclerosis. To this end, we generated and characterized low-density lipoprotein receptor (Ldlr)/Mmp12-double knockout (DKO) mice fed a high-fat sucrose- and cholesterol-enriched diet for 16-20 weeks.

resultsDKO mice showed lower cholesterol and plasma glucose concentrations and improved insulin sensitivity compared with LdlrKO mice. Untargeted proteomic analyses of epididymal white adipose tissue revealed that inflammation- and fibrosis-related pathways were downregulated in DKO mice. In addition, genetic deletion of MMP12 led to alterations in immune cell composition and a reduction in plasma monocyte chemoattractant protein-1 in peripheral blood which indicated decreased low-grade systemic inflammation. Aortic en face analyses and staining of aortic valve sections demonstrated reduced atherosclerotic plaque size and collagen content, which was paralleled by an improved relaxation pattern and endothelial function of the aortic rings and more elastic aortic sections in DKO compared to LdlrKO mice. Shotgun proteomics revealed upregulation of anti-inflammatory and atheroprotective markers in the aortas of DKO mice, further supporting our data. In humans, MMP12 serum concentrations were only weakly associated with clinical and laboratory indicators of CMDs.

conclusionWe conclude that the genetic deletion of MMP12 ameliorates obesity-induced low-grade inflammation, white adipose tissue dysfunction, biomechanical properties of the aorta, and the development of atherosclerosis. Therefore, therapeutic strategies targeting MMP12 may represent a promising approach to combat CMDs.

Indexed as

AtherosclerosisInsulin ResistancePlaque, AtheroscleroticAnimalsCholesterolDisease Models, AnimalHumansInflammationMatrix Metalloproteinase 12MiceMice, Inbred C57BLMice, KnockoutProteomicsReceptors, LDLCholesterolmatrix metallopeptidase 12, mouseMatrix Metalloproteinase 12MMP12 protein, humanReceptors, LDLCMDLdlr-deficient miceMatrix metalloproteinase 12Metabolic syndrome patientsMMP12 deficiencyProteomics

Identifiers

PMID38017481
PMCPMC10685620
OpenAlexW4389082265

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.