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TGF-β Family Signaling in Connective Tissue and Skeletal Diseases

Elena Gallo MacFarlane1, Julia Haupt2,3, Harry C Dietz1,4

  • 1McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205.

Cold Spring Harbor Perspectives in Biology
|March 2, 2017
PubMed

Insights

The transforming growth factor beta (TGF-β) signaling pathway is crucial for connective tissues and skeleton health. Dysregulation of TGF-β family members contributes to various skeletal and cardiovascular diseases, including osteoarthritis and aortic aneurysms.

Area of Science:

  • Molecular Biology
  • Cell Biology
  • Genetics

Background:

  • The transforming growth factor beta (TGF-β) superfamily encompasses diverse signaling molecules vital for cellular and tissue functions.
  • These molecules, including TGF-βs, activins, inhibins, bone morphogenetic proteins (BMPs), and growth and differentiation factors (GDFs), are critical in soft connective tissues and skeletal development.
  • Their functions are context-dependent, involving intricate cross-talk with other signaling pathways and precise regulation.

Purpose of the Study:

  • To review the multifaceted roles of the TGF-β signaling family in the pathology of connective tissues.
  • To explore the involvement of TGF-β pathways in both rare genetic syndromes and common acquired disorders affecting connective tissues.
  • To highlight the interplay between TGF-β signaling, extracellular matrix, and disease pathogenesis.

Main Methods:

  • Literature review of scientific articles and research papers.
  • Synthesis of information on TGF-β family members and their functions.
  • Analysis of the association between TGF-β pathway dysregulation and connective tissue diseases.

Main Results:

  • TGF-β family members exhibit distinct roles in connective tissue and skeletal biology.
  • Perturbations in TGF-β signaling pathways are implicated in a spectrum of human diseases, affecting the skeletal and cardiovascular systems.
  • Pathological alterations in the TGF-β-extracellular matrix relationship are central to many connective tissue disorders.

Conclusions:

  • The TGF-β signaling pathway is a key player in maintaining connective tissue homeostasis.
  • Dysregulation of TGF-β family members contributes significantly to the pathogenesis of various connective tissue disorders, from rare syndromes to common diseases.
  • Understanding these complex interactions is crucial for developing therapeutic strategies for diseases like osteoarthritis, osteoporosis, and thoracic aortic aneurysm.

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