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Related Concept Videos

Extracellular Matrix01:26

Extracellular Matrix

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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...
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The Extracellular Matrix01:29

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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.
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Chronic Obstructive Pulmonary Disease (COPD) pathophysiology is intricate and multifaceted, involving a complex interplay of physiological processes. Understanding these mechanisms is crucial for effectively managing and treating COPD. Here is an in-depth look at the critical elements in the pathophysiology of COPD:
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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...
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Chronic obstructive pulmonary disease (COPD) is a group of lung conditions that progressively worsen over time, including chronic bronchitis and emphysema. This cluster of diseases collectively leads to a gradual and irreversible decline in lung function over time.
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Author Spotlight: Dissection and Isolation of Region-Specific Decellularized Lung Tissue
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Extracellular matrix remodelling in COPD.

Meropi Karakioulaki1, Eleni Papakonstantinou1,2, Daiana Stolz3

  • 1Clinic of Pulmonary Medicine and Respiratory Cell Research, University Hospital, Basel, Switzerland.

European Respiratory Review : an Official Journal of the European Respiratory Society
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The lung

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Area of Science:

  • Pulmonary Medicine
  • Biochemistry
  • Cell Biology

Background:

  • The lung's extracellular matrix (ECM) is crucial for gas exchange, structural integrity, and cellular interactions.
  • Chronic Obstructive Pulmonary Disease (COPD) involves progressive airflow limitation and airway remodeling.
  • ECM alterations in airway walls are a key feature of COPD, impacting lung function.

Purpose of the Study:

  • To investigate the role of ECM in lung function and COPD pathogenesis.
  • To explore ECM composition in diseased lungs for novel biomarker discovery.
  • To identify potential therapeutic targets for controlling airway inflammation and remodeling in COPD.

Main Methods:

  • Literature review on ECM function and COPD.
  • Analysis of existing studies on ECM biomarkers in COPD patients.
  • Exploration of molecular composition of ECM in lung disease.

Main Results:

  • Serum biomarkers of ECM turnover correlate with COPD severity.
  • ECM alterations significantly affect airway wall thickness, resistance, and elasticity in COPD.
  • Understanding ECM composition can reveal new therapeutic avenues.

Conclusions:

  • The lung ECM is vital for maintaining respiratory health and is significantly altered in COPD.
  • ECM biomarkers show promise for assessing COPD severity and progression.
  • Further research into ECM molecular composition is essential for developing novel COPD therapies.