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Published in: BMC Cardiovascular Disorders 1/2021

Open Access 01-12-2021 | Pulmonary Hypertension | Research

The role of matrix metalloproteinases in patients with pulmonary hypertension: data from a prospective study

Authors: Adriana Marc, Calin Pop, Adela-Viviana Sitar-Taut, Liviuta Budisan, Ioana Berindan-Neagoe, Dana Pop

Published in: BMC Cardiovascular Disorders | Issue 1/2021

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Abstract

Background

Despite several therapies, pulmonary hypertension (PH) is still a severe disease which can lead to right heart failure. Matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinases (TIMPs) are involved in cardiac and vascular remodeling in PH. Therefore, these biomarkers play an important role in PH patients. This study investigated whether TIMP-4, MMP-2, and N-terminal Pro-B-Type Natriuretic Peptide (NT-proBNP) plasma levels are useful in assessing the severity of PH and other clinical or echocardiographic parameters.

Methods

The concentrations of MMP-2, TIMP-4, and NT-proBNP in 68 PH patients were compared with those of 12 controls without PH. All patients underwent a physical examination, echocardiography, and were checked for the presence of cardiovascular risk factors; also, plasma concentrations of MMP-2, TIMP-4, NT-proBNP, total cholesterol, and triglycerides were determined.

Results

In PH patients, significantly elevated plasma levels of TIMP-4 (PH: 2877.99 ± 1363.78 pg/ml, control: 2028.38 ± 762.67 pg/ml, p = 0.0068) and NT-proBNP ( PH: 2405.00 pg/ml—5423.47 ± 6703.38 pg/ml, control: 411.0000 pg/ml—421.75 ± 315.37 pg/ml, p = 0.01) were detected. We also observed that MMP-2 and NT-proBNP were significantly increased in patients with higher WHO functional class (p = 0.001 for MMP-2, p = 0.008 for NT-proBNP), higher pressure in the pulmonary artery (p = 0.002 for MMP-2, p = 0.001 for NT-proBNP), and more severe tricuspid regurgitation (p = 0.001 for MMP-2, p = 0.009 for NT-proBNP). TIMP-4 was elevated in patients with more severe pressure in the pulmonary artery (p = 0.006).

Conclusions

The plasma levels of TIMP-4 and NT-proBNP are higher in PH patients. MMP-2 and NT-proBNP correlates with different PH parameters severity (WHO functional class, sPAP severity, TV regurgitation severity). Therefore, plasmatic levels of MMP-2 and NT-proBNP at this kind of patients reflect disease severity and may have a prognostic role. MMP-2 can help assess the beneficial effects of PH pharmacotherapy on tissue remodeling. These remodeling biomarkers may not have a diagnostic value but they have the potential to predict survival. Nevertheless, a greater understanding of the involvement of MMPs in PH is mandatory to further explore the prognostic role and the possibilities of therapeutic MMP inhibition in PH.
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Metadata
Title
The role of matrix metalloproteinases in patients with pulmonary hypertension: data from a prospective study
Authors
Adriana Marc
Calin Pop
Adela-Viviana Sitar-Taut
Liviuta Budisan
Ioana Berindan-Neagoe
Dana Pop
Publication date
01-12-2021
Publisher
BioMed Central
Published in
BMC Cardiovascular Disorders / Issue 1/2021
Electronic ISSN: 1471-2261
DOI
https://doi.org/10.1186/s12872-021-02424-5

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