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Related Experiment Videos

Proteolytic control of growth factor availability.

D B Rifkin1, R Mazzieri, J S Munger

  • 1Department of Cell Biology, New York University Medical Center, NY 10016, USA.

APMIS : Acta Pathologica, Microbiologica, Et Immunologica Scandinavica
|April 6, 1999
PubMed
Summary

Most latent growth factors require activation by the plasminogen activator-plasmin system for receptor interaction. This review focuses on the plasmin system

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Area of Science:

  • Cell biology
  • Biochemistry
  • Molecular biology

Background:

  • Growth factors are often released in a latent form.
  • Interaction with high-affinity receptors is crucial for growth factor function.
  • The plasminogen activator-plasmin system plays a role in extracellular matrix remodeling and growth factor activation.

Purpose of the Study:

  • To review the involvement of the plasminogen activator-plasmin system in the biology of Transforming Growth Factor-beta (TGF-beta).
  • To highlight the mechanism of latent growth factor presentation and activation.

Main Methods:

  • Literature review of studies on growth factor activation and the plasmin system.
  • Analysis of the role of plasmin in releasing and activating TGF-beta.
  • Examination of the biological consequences of TGF-beta activation by plasmin.

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Main Results:

  • The plasminogen activator-plasmin system is a key mechanism for activating latent growth factors.
  • Plasmin-mediated activation is essential for the biological activity of TGF-beta.
  • This activation process allows TGF-beta to interact with its high-affinity receptors.

Conclusions:

  • The plasminogen activator-plasmin system is critical for regulating the bioavailability and activity of TGF-beta.
  • Understanding this activation mechanism is important for comprehending TGF-beta signaling pathways.
  • Targeting the plasmin system could offer therapeutic strategies for diseases involving TGF-beta dysregulation.