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TGF-β Signaling from Receptors to Smads

Akiko Hata1, Ye-Guang Chen2

  • 1Cardiovascular Research Institute, University of California, San Francisco, San Francisco, California 94143.

Cold Spring Harbor Perspectives in Biology
|July 25, 2016
PubMed

Insights

Transforming growth factor beta (TGF-β) signaling is crucial for development and tissue health. This pathway

Area of Science:

  • Cellular Biology
  • Molecular Biology
  • Developmental Biology

Background:

  • Transforming growth factor beta (TGF-β) and related factors are vital for embryogenesis and tissue homeostasis.
  • These factors regulate cell proliferation, differentiation, death, and migration through specific receptor complexes and Smad proteins.

Purpose of the Study:

  • To review the fundamental components of TGF-β signaling pathways.
  • To discuss the context-dependent nature of TGF-β signaling.
  • To explore modulatory factors influencing TGF-β signal outcomes.

Main Methods:

  • Literature review of studies on TGF-β signaling.
  • Analysis of receptor-mediated signal transduction.
  • Examination of Smad protein activation and function.

Main Results:

  • TGF-β signaling relies on heteromeric receptor complexes (types I and II) activating Smad transducers.
  • The pathway's context-dependence is determined by ligand concentration, tissue type, and developmental stage.
  • Posttranslational modifications and modulatory partners, including small noncoding RNAs, fine-tune TGF-β signal outcomes.

Conclusions:

  • Understanding TGF-β signaling complexity is key to addressing developmental defects and diseases.
  • Modulators significantly contribute to the context-dependent nature of TGF-β signaling.
  • Further research into these modulators can reveal therapeutic targets.

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