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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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The extracellular matrix or ECM holds cells together to form a tissue and allows the cells within the tissue to communicate. ECM comprises proteins such as fibronectin, collagen, laminin, etc. The most abundant protein in this space is collagen. Collagen fibers are interwoven with carbohydrate-containing protein molecules called proteoglycans. ECM allows cell migration and provides a structural scaffold at cell adhesion that anchors the cell when the extracellular matrix proteins interact with...
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2D and 3D Matrices to Study Linear Invadosome Formation and Activity
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MMP generated matrikines.

J Michael Wells1, Amit Gaggar1, J Edwin Blalock2

  • 1Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham (UAB), USA; UAB Lung Health Center, USA; Department of Medicine, Birmingham VA Medical Center, USA.

Matrix Biology : Journal of the International Society for Matrix Biology
|February 1, 2015
PubMed
Summary
This summary is machine-generated.

Matrikines, derived from extracellular matrix proteins, regulate cell functions. Matrix metalloproteinases (MMPs) generate specific matrikines like elastin peptides and proline-glycine-proline (PGP), impacting various diseases.

Keywords:
COPDElastinMatrix metalloproteinaseProline–glycine–proline

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Area of Science:

  • Biochemistry
  • Cell Biology
  • Pathology

Background:

  • Matrikines are fragments of extracellular matrix (ECM) proteins that modulate cellular activities.
  • They play roles in inflammation, immune responses, development, repair, angiogenesis, atherosclerosis, and cancer progression.
  • Matrix metalloproteinases (MMPs) are key enzymes involved in ECM degradation and matrikine generation.

Purpose of the Study:

  • To review the role of MMPs in the generation of specific matrikines.
  • To highlight the biological significance of matrikines derived from elastin and collagen.

Main Methods:

  • Literature review focusing on MMPs and their matrikine products.
  • Analysis of studies implicating matrikines in various physiological and pathological processes.

Main Results:

  • MMP-1, MMP-2, MMP-8, MMP-9, and MMP-12 are implicated in generating elastin peptides and proline-glycine-proline (PGP).
  • Elastin peptides are involved in atherosclerosis, neovascularization, COPD, skin diseases, and tumor metastasis.
  • PGP is crucial for neutrophil chemotaxis and implicated in corneal ulcers and chronic lung diseases, with a self-propagating inflammatory cycle in chronic lung disease.

Conclusions:

  • MMPs are critical regulators of matrikine formation.
  • Matrikines like elastin peptides and PGP are significant mediators in diverse disease pathologies.
  • Understanding MMP-matrikine interactions offers insights into disease mechanisms and potential therapeutic targets.