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Related Experiment Videos

Ligand-specific control of src-suppressed C kinase substrate gene expression.

Stephen R Coats1, Lil M Pabón-Peña, Joseph W Covington

  • 1Department of Medicine, Vanderbilt University Medical Center and Nashville VAMC, Nashville, TN 37212-6300, USA. scoats@u.washington.edu

Biochemical and Biophysical Research Communications
|October 10, 2002
PubMed
Summary

Platelet-derived growth factor-BB (PDGF-BB), lysophosphatidic acid (LPA), and eicosanoids like EPA regulate SSeCKS expression, impacting cell signaling, adhesion, and morphology. This study identifies novel ligands controlling SSeCKS, a key regulator of cell dynamics.

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Area of Science:

  • Cell Biology
  • Molecular Biology
  • Biochemistry

Background:

  • SSeCKS is a crucial regulator of cell signaling and cytoskeletal dynamics.
  • Limited information exists on ligands controlling SSeCKS expression.

Purpose of the Study:

  • To identify novel bioactive ligands that modulate SSeCKS gene expression.
  • To investigate the functional role of SSeCKS in ligand-mediated cellular responses.

Main Methods:

  • Quantitative analysis of SSeCKS mRNA and protein levels in response to various ligands.
  • Cell morphology and adhesion assays in response to ligand stimulation and SSeCKS modulation.
  • Utilized cultured rat aortic smooth muscle (RASM) cells and ras-transformed fibroblasts (KNRK).

Main Results:

Related Experiment Videos

  • Platelet-derived growth factor-BB (PDGF-BB), lysophosphatidic acid (LPA), and eicosapentaenoic acid (EPA) significantly modulate SSeCKS gene expression in RASM cells.
  • EPA-induced SSeCKS regulation correlates with changes in cell morphology and adhesion.
  • Sodium butyrate (NaB) upregulates SSeCKS, leading to increased cell spreading and adhesion, effects mimicked by ectopic SSeCKS expression.

Conclusions:

  • SSeCKS plays a significant role in cellular responses mediated by PDGF-BB, LPA, EPA, and NaB.
  • Ligand-specific control of SSeCKS expression is linked to the regulation of cell adhesion and morphology.
  • Identified novel ligands that regulate SSeCKS, expanding understanding of its role in cell signaling.