Related Experiment Video

Updated: Jun 21, 2026

Monitoring Neutrophil Elastase and Cathepsin G Activity in Human Sputum Samples
09:23

Monitoring Neutrophil Elastase and Cathepsin G Activity in Human Sputum Samples

Published on: May 21, 2021

Serum matrix metalloproteinases in adult CF patients: Relation to pulmonary exacerbation

Martin Roderfeld1, Timo Rath, Richard Schulz

  • 1Justus-Liebig-University Giessen, Department of Internal Medicine, Germany.

Journal of Cystic Fibrosis : Official Journal of the European Cystic Fibrosis Society
|July 17, 2009
PubMed
Abstract

Insights

In cystic fibrosis (CF) patients, elevated serum matrix metalloproteinases (MMPs) correlate with pulmonary exacerbations (PEx) and impaired lung function. These MMPs may serve as biomarkers for PEx in CF.

Area of Science:

  • Biochemistry
  • Immunology
  • Pulmonology

Background:

  • Matrix metalloproteinases (MMPs) degrade extracellular matrix components and are involved in inflammation and tissue remodeling.
  • Elevated MMPs in cystic fibrosis (CF) patients' airways correlate with reduced lung function.
  • The association between serum MMPs and CF-related pulmonary exacerbations (PEx) requires further investigation.

Purpose of the Study:

  • To determine if serum MMP levels are associated with impaired pulmonary function in adult CF patients.
  • To investigate the relationship between serum MMPs and the occurrence of PEx in adult CF patients.

Main Methods:

  • Serum concentrations of 9 MMPs and TIMP-1 were measured using ELISA in 54 adult CF patients.
  • Pulmonary exacerbations (PEx) were defined using a validated scoring system.
  • Specific MMPs were assessed in a subset of patients before and after antibiotic therapy for PEx.

Main Results:

  • Serum MMP-1, MMP-8, and MMP-9 levels were elevated in CF patients compared to controls and correlated with PEx.
  • MMP-8 expression was linked to impaired lung function, while MMP-2 decline was associated with PEx.
  • Antibiotic treatment reduced serum levels of MMP-1, MMP-8, and active MMP-9 in patients with PEx.

Conclusions:

  • Increased serum MMPs are associated with PEx and reduced lung function in CF patients.
  • Specific MMPs show potential as non-invasive biomarkers for predicting and monitoring PEx in CF.
  • Further research into MMP-targeted therapies could improve CF management.

More Related Videos

Implementation of Non-invasive Point of Care Transient Elastography for Evaluation of Liver Disease in Pediatric Populations with Cystic Fibrosis05:56

Implementation of Non-invasive Point of Care Transient Elastography for Evaluation of Liver Disease in Pediatric Populations with Cystic Fibrosis

Published on: August 29, 2025

Related Concept Videos

Cystic Fibrosis: Pathogenesis01:23

Cystic Fibrosis: Pathogenesis

Cystic fibrosis (CF), an autosomal recessive disorder, significantly affects the function of exocrine glands. This genetically inherited disease is characterized by the production of thick and sticky mucus, which can severely affect various organs and systems in the body.
CF is primarily caused by a genetic mutation in a chromosome 7 gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The most common gene mutation leading to CF is the ΔF508 mutation, but...
Cystic Fibrosis: Management01:24

Cystic Fibrosis: Management

Cystic fibrosis (CF) is an autosomal recessive disorder that predominantly affects individuals of Northern European descent, occurring at a rate of 1 in 3500. It is caused by a genetic mutation in a gene on chromosome 7, most commonly the ΔF508 mutation, that codes for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. This results in thicker mucus secretions and obstruction pathologies in multiple organs, including the lungs and sinuses.
Sinus disease and chronic sinusitis...
Role of Matrix Metalloproteases in Degradation of ECM01:23

Role of Matrix Metalloproteases in Degradation of ECM

Matrix metalloproteases (MMPs) are enzymes involved in the hydrolysis of proteins and glycoproteins of the extracellular matrix. MMPs are essential for the migration and proliferation of cells through the dense matrix network, throughout embryonic development, and throughout morphogenesis. The first MMP activity discovered was a collagenase in a tadpole's tail undergoing metamorphosis. The active collagen deposition and modifications lead to the morphogenesis of tadpoles into the adult body.
A...
Extracellular Matrix01:26

Extracellular Matrix

Unlike epithelial tissue, which is composed of cells closely packed with little or no extracellular space in between, connective tissue cells are dispersed in a matrix. This extracellular matrix (ECM) is composed of fibrous proteins like collagen, elastin, and fibronectin in a ground substance consisting of interstitial fluid, cell adhesion proteins, and proteoglycans. The proteoglycans form a gel-like material in the spaces between cells and provide hydration, buffering, binding, and force...
The Extracellular Matrix01:29

The Extracellular Matrix

Overview
In order to maintain tissue organization, many animal cells are surrounded by structural molecules that make up the extracellular matrix (ECM). Together, the molecules in the ECM maintain the structural integrity of tissue as well as the remarkable specific properties of certain tissues.
Composition of the Extracellular Matrix
The extracellular matrix (ECM) is commonly composed of ground substance, a gel-like fluid, fibrous components, and many structurally and functionally diverse...
The Extracellular Matrix01:42

The Extracellular Matrix

In order to maintain tissue organization, many animal cells are surrounded by structural molecules that make up the extracellular matrix (ECM). Together, the molecules in the ECM maintain the structural integrity of tissue as well as the remarkable specific properties of certain tissues.Composition of the Extracellular MatrixThe extracellular matrix (ECM) is commonly composed of ground substance, a gel-like fluid, fibrous components, and many structurally and functionally diverse molecules.