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TGF - β Signaling Pathway01:16

TGF - β Signaling Pathway

The TGF-β signaling pathway regulates cell growth, differentiation, adhesion, motility, and development. TGF-β ligands that induce TGF-β signaling are synthesized in their latent form. Several proteases or cell surface receptors such as integrins act upon the latent form, releasing the active ligand. There are three types of mammalian TGF-βs: (TGF-β1, TGF-β2, and TGF-β3) that bind as homodimers or heterodimers to TGF-β receptors. The TGF-β receptors are of three kinds RI, RII, and RIII. The RI...
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The JAK-STAT Signaling Pathway

Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as  SH2...
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Pathophysiology of Heart Failure

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Interactions Between Signaling Pathways01:19

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Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
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Related Experiment Video

Updated: Jun 10, 2026

Visualization and Quantification of TGFβ/BMP/SMAD Signaling under Different Fluid Shear Stress Conditions using Proximity-Ligation-Assay
11:38

Visualization and Quantification of TGFβ/BMP/SMAD Signaling under Different Fluid Shear Stress Conditions using Proximity-Ligation-Assay

Published on: September 14, 2021

Cardiac pathologies in relation to Smad-dependent pathways.

Shi-Min Yuan1, Hua Jing

  • 1Department of Cardiothoracic Surgery, Jinling Hospital, School of Clinical Medicine, Nanjing University, Nanjing 210002, Jiangsu Province, China.

Interactive Cardiovascular and Thoracic Surgery
|July 24, 2010
PubMed
Summary
This summary is machine-generated.

Smad proteins are crucial for cardiac development and are implicated in various heart disorders. Research highlights their role in transforming growth factor-β (TGF-β) pathways, offering potential therapeutic targets for cardiac abnormalities.

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Last Updated: Jun 10, 2026

Visualization and Quantification of TGFβ/BMP/SMAD Signaling under Different Fluid Shear Stress Conditions using Proximity-Ligation-Assay
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Visualization and Quantification of TGFβ/BMP/SMAD Signaling under Different Fluid Shear Stress Conditions using Proximity-Ligation-Assay

Published on: September 14, 2021

Studying TGF-β Signaling and TGF-β-induced Epithelial-to-mesenchymal Transition in Breast Cancer and Normal Cells
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Studying TGF-β Signaling and TGF-β-induced Epithelial-to-mesenchymal Transition in Breast Cancer and Normal Cells

Published on: October 27, 2020

Area of Science:

  • Cardiovascular Biology
  • Molecular Signaling
  • Developmental Biology

Background:

  • The transforming growth factor-β (TGF-β) superfamily regulates critical cellular processes.
  • Smad proteins act as key intracellular signal transducers for TGF-β superfamily members.
  • Smads are linked to diverse cardiac conditions, including failure, fibrosis, and hypertension.

Purpose of the Study:

  • To review current research on Smad proteins in cardiac disorders.
  • To elucidate the role of Smad proteins in cardiac development via TGF-β pathways.

Main Methods:

  • Literature review of studies on Smad proteins and cardiac function.
  • Analysis of molecular mechanisms involving Smad signaling in the heart.

Main Results:

  • Smad proteins regulate embryonic cardiac structural development.
  • Dysregulation of Smad signaling is associated with cardiac pathologies.
  • Bone morphogenetic protein 2 (BMP2) signaling via Smad1/Smad4 impacts gene transcription.

Conclusions:

  • Smad proteins are vital in cardiac development and disease.
  • Targeting Smad-mediated TGF-β pathways presents therapeutic potential for cardiac abnormalities.
  • Further research into Smad signaling can guide interventions for heart conditions.