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Membrane associated matrix metalloproteinases in metastasis

S M Ellerbroek1, M S Stack

  • 1Departments of Obstetrics & Gynecology and Cell & Molecular Biology, Northwestern University Medical School, Chicago, Illinois, USA.

Bioessays : News and Reviews in Molecular, Cellular and Developmental Biology
|October 12, 1999
PubMed

Insights

Matrix metalloproteinases (MMPs) aid tumor cell invasion by degrading tissue barriers. Membrane-anchored MMPs (MT-MMPs) activate MMP-2 on cell surfaces, facilitating metastasis and requiring study of in vivo regulation.

Area of Science:

  • Biochemistry
  • Cell Biology
  • Oncology

Background:

  • Hematogenous metastasis involves tumor cells degrading extracellular matrix.
  • Matrix metalloproteinases (MMPs) are key enzymes in tumor cell invasion.
  • Membrane-anchored MMPs (MT-MMPs) activate other MMPs on the cell surface.

Purpose of the Study:

  • To review in vivo regulatory mechanisms of membrane-associated MMP activity.
  • To explore the role of MMPs in tumor cell interaction with matrix macromolecules.
  • To understand the facilitation of cellular metastasis by plasma membrane-associated MMPs.

Main Methods:

  • Literature review focusing on MMPs and metastasis.
  • Analysis of research on membrane-anchored metalloproteinases (MT-MMPs).
  • Examination of MMP-2 activation on the cell surface.

Main Results:

  • MT-MMPs activate latent MMP-2 on the cell surface.
  • Activation of cell surface MMPs is a potential mechanism for metastasis.
  • In vivo regulation of membrane-associated MMP activity is crucial.

Conclusions:

  • MMPs, particularly MT-MMPs, play a significant role in tumor cell invasion and metastasis.
  • Understanding the regulation of membrane-associated MMPs is vital for cancer research.
  • Further investigation into in vivo regulatory mechanisms is warranted.

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