Adhesion molecules and matrix metalloproteinases in Multiple Sclerosis: effects induced by Interferon-beta

C Avolio1, F Giuliani, G M Liuzzi

  • 1Neurology Unit, University of Foggia, Foggia, Italy. avolio@neurol.uniba.it

Brain Research Bulletin
|August 12, 2003
PubMed

Insights

Recombinant Interferon-beta (rIFNbeta) impacts leukocyte migration in Multiple Sclerosis (MS) by modulating adhesion molecules and matrix metalloproteinases, potentially restoring blood-brain barrier integrity.

Area of Science:

  • Neuroimmunology
  • Molecular Biology
  • Pharmacology

Background:

  • Multiple Sclerosis (MS) involves leukocyte migration across the blood-brain barrier (BBB).
  • Adhesion molecules (AMs) and matrix metalloproteinases (MMPs) regulate this inflammatory process.
  • Recombinant Interferon-beta (rIFNbeta) is an effective MS treatment, suggesting BBB protective mechanisms.

Purpose of the Study:

  • To review the effects of rIFNbeta on AMs and MMPs in MS pathology.
  • To elucidate how rIFNbeta influences BBB integrity via these molecular pathways.

Main Methods:

  • In vitro and in vivo studies examining rIFNbeta's impact.
  • Analysis of both cell-bound and soluble forms of AMs.
  • Assessment of MMP activity and expression.

Main Results:

  • rIFNbeta influences cell-bound and soluble adhesion molecules.
  • rIFNbeta affects matrix metalloproteinase activity.
  • These effects suggest a role in modulating BBB permeability in MS.

Conclusions:

  • rIFNbeta modulates key molecules involved in leukocyte trafficking across the BBB.
  • Interference with AM and MMP pathways is a likely mechanism for rIFNbeta's therapeutic effect in MS.
  • Further research into these pathways may reveal novel therapeutic strategies for MS.

Related Concept Videos

Intracellular Signaling Affects Focal Adhesions01:17

Intracellular Signaling Affects Focal Adhesions

Integrins act both as extracellular input receivers and as intracellular processing activators. As their name suggests, integrins are entirely integrated into the membrane structure. Their hydrophobic membrane-spanning regions interact with the phospholipid bilayer's hydrophobic region. These membrane receptors provide extracellular attachment sites for effectors like hormones and growth factors. They activate intracellular response cascades when their effectors are bound and active.
Some...
Overview of Cell-Matrix Interactions01:24

Overview of Cell-Matrix Interactions

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...
Immunoglobulin-like Cell Adhesion Molecules01:31

Immunoglobulin-like Cell Adhesion Molecules

Immunoglobulin-like cell adhesion molecules or Ig-CAMs are a versatile group of cell surface glycoproteins belonging to the immunoglobulin protein superfamily. Ig-CAMs possess the characteristic immunoglobulin protein domains and other domains such as the fibronectin type III domain. The Ig domains are glycosylated to varying degrees in different Ig-CAMs.
Ig-CAMs exhibit either homophilic binding (to other Ig-CAMs) or heterophilic binding (to other ligands such as integrins). While most Ig-CAMs...
Multiple Sclerosis l: Introduction01:19

Multiple Sclerosis l: Introduction

Multiple sclerosis is a chronic autoimmune disease of the central nervous system (CNS) that affects the brain, spinal cord, and optic nerves. It is an inflammatory demyelinating disorder and a leading cause of neurological disability in young adults.EpidemiologyMS commonly begins between 20 and 40 years of age and is twice as common in women. Its exact cause remains unclear, but genetic susceptibility contributes, with higher risk in first-degree relatives and identical twins. A greater...
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...
Cell-matrix's Response to Mechanical Forces01:13

Cell-matrix's Response to Mechanical Forces

In animal cells, the extracellular matrix allows cells within tissues to withstand external stresses and transmits signals from the outside of the cell to the inside. The extracellular matrix is extensive, and its composition varies between different types of tissues. For example, the reticular fibers and ground substance make up the ECM in loose connective tissue, while collagen and bone minerals make up the ECM of bone tissue. 
Anchoring junctions mechanically attach a cell to the...