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Molecular Analysis of Endothelial-mesenchymal Transition Induced by Transforming Growth Factor-β Signaling
07:49

Molecular Analysis of Endothelial-mesenchymal Transition Induced by Transforming Growth Factor-β Signaling

Published on: August 3, 2018

Transforming growth factor-beta signal transduction in angiogenesis and vascular disorders

Philippe Bertolino1, Martine Deckers, Franck Lebrin

  • 1Division of Cellular Biochemistry, The Netherlands Cancer Institute, Amsterdam, The Netherlands.

Chest
|December 24, 2005
PubMed

Insights

Transforming growth factor-beta (TGF-β) signaling is crucial for blood vessel formation (angiogenesis) and vascular homeostasis. Dysregulation of TGF-β pathways, particularly involving ALK1 and ALK5 receptors, can lead to vascular disorders.

Area of Science:

  • Molecular Biology
  • Cell Biology
  • Vascular Biology

Background:

  • Transforming growth factor-beta (TGF-β) is a key regulator of cellular functions, including proliferation, migration, and differentiation.
  • TGF-β signaling is essential for maintaining vascular homeostasis and plays a critical role in angiogenesis.
  • Genetic studies link TGF-β pathway components to vascular disorders like hereditary hemorrhagic telangiectasia.

Purpose of the Study:

  • To review recent advances in understanding TGF-β signaling in endothelial cells.
  • To elucidate the molecular mechanisms underlying TGF-β's role in vascular homeostasis and disease.
  • To highlight the opposing effects of ALK1 and ALK5 receptor signaling on endothelial cell behavior.

Main Methods:

  • Review of existing literature on TGF-β signaling pathways.
  • Analysis of genetic studies in humans and knockout mouse models.
  • Examination of molecular mechanisms involving ALK1 and ALK5 receptors.

Main Results:

  • TGF-β signaling is indispensable for angiogenesis, as evidenced by knockout mouse studies.
  • Mutations in TGF-β receptors (ALK1, endoglin) are associated with hereditary hemorrhagic telangiectasia.
  • TGF-β balances vascular homeostasis by opposing signals from ALK1 and ALK5 receptors.

Conclusions:

  • TGF-β signaling is a critical determinant of endothelial cell behavior and angiogenesis.
  • Perturbations in TGF-β signaling pathways contribute to the pathogenesis of vascular disorders.
  • Understanding the interplay between ALK1 and ALK5 signaling is key to addressing vascular diseases.

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