Evidence map›Paper›PMID 34529782›Full record

ArticleEuropean heart journal2022

Matrix metalloproteinase-2 on activated platelets triggers endothelial PAR-1 initiating atherosclerosis.

Stefania Momi, Emanuela Falcinelli, Eleonora Petito, Giulia Ciarrocca Taranta, Alice Ossoli, Paolo Gresele

Abstract read
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In one paragraph

Article in European heart journal, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
3.5field-weighted citation impact, top 5% 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

27 citing papers in PubMed, 58 citations in OpenAlex.

  1. Proteases and Abdominal Pain-Old Dog, New (Microbial) Tricks.Cellular and molecular gastroenterology and hepatology · 2026
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  13. Neutrophil extracellular traps: a catalyst for atherosclerosis.Molecular and cellular biochemistry · 2024
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  17. Acta pharmaceutica Sinica. B · 2024
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Stefania MomiDepartment of Medicine and Surgery, Section of Internal and Cardiovascular Medicine, University of Perugia, Strada Vicinale Via delle Corse, Perugia 06132, Italy.
Emanuela FalcinelliDepartment of Medicine and Surgery, Section of Internal and Cardiovascular Medicine, University of Perugia, Strada Vicinale Via delle Corse, Perugia 06132, Italy.ORCID 0000-0001-6078-3041
Eleonora PetitoDepartment of Medicine and Surgery, Section of Internal and Cardiovascular Medicine, University of Perugia, Strada Vicinale Via delle Corse, Perugia 06132, Italy.ORCID 0000-0003-4921-8687
Giulia Ciarrocca TarantaDepartment of Medicine and Surgery, Section of Internal and Cardiovascular Medicine, University of Perugia, Strada Vicinale Via delle Corse, Perugia 06132, Italy.ORCID 0000-0003-4339-652X
Alice OssoliCenter E. Grossi Paoletti, Department of Pharmacologic and Biomolecular Science, University of Milan, via delle Corse, Milan 06132, Italy.
Paolo GreseleDepartment of Medicine and Surgery, Section of Internal and Cardiovascular Medicine, University of Perugia, Strada Vicinale Via delle Corse, Perugia 06132, Italy.ORCID 0000-0001-5365-8445
University of Perugia · ITUniversity of Milan · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsPlatelets participate in atherogenesis with mechanisms not yet fully clarified. Vascular wall MMP-2 is involved in the arterial remodelling accompanying atherosclerosis. Platelets contain and release MMP-2 but no informations are available on its role in atherosclerotic lesion formation. METHODS AND

resultsWe generated double knockout mice lacking the LDL receptor and MMP-2 only in circulating blood cells showing that they develop significantly lesser femoral intima thickening after photochemical-induced arterial damage and atherosclerotic lesions in the aorta, measured by the en face method, after 4 months of atherogenic diet. Moreover, repeated transfusions of autologous-activated platelets in LDLR-/- mice on atherogenic diet significantly enhanced the extension of aortic atherosclerotic lesions while transfusion of activated platelets from MMP-2-/- mice did not. In vitro coincubation studies showed that platelet-derived MMP-2 plays a pivotal role in the development and progression of atherosclerosis through a complex cross-talk between activated platelets, monocyte/macrophages, and endothelial cells. Translational studies in patients with CAD and chronic HIV infection showed that platelet surface expression of MMP-2 highly significantly correlated with the degree of carotid artery stenosis.

conclusionWe show a previously unknown mechanism of the pathway through which platelets expressing MMP-2 trigger the initial phases of atherosclerosis and provide a mechanism showing that they activate endothelial PAR-1 triggering endothelial p38MAPK signalling and the expression of adhesion molecules. The development of drugs blocking selectively platelet MMP-2 or its expression may represent a new approach to the prevention of atherosclerosis.

Indexed as

AtherosclerosisHIV InfectionsAnimalsBlood PlateletsEndothelial CellsHumansMatrix Metalloproteinase 2MiceMice, Inbred C57BLMice, KnockoutMatrix Metalloproteinase 2AtherosclerosisEndothelial cellsMMP-2PAR-1Platelets

Identifiers

PMID34529782
OpenAlexW3201283770

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.