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Related Experiment Videos

Protein factors which regulate cell motility.

E M Rosen1, I D Goldberg

  • 1Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, Connecticut 06510.

In Vitro Cellular & Developmental Biology : Journal of the Tissue Culture Association
|December 1, 1989
PubMed
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New motility-stimulating proteins (MSPs) like scatter factor (SF) and autocrine motility factor (AMF) are identified. These proteins may represent a novel class of cell-specific motility regulators involved in development and repair.

Area of Science:

  • Cell Biology
  • Molecular Biology
  • Biochemistry

Background:

  • Cell motility is crucial for development, inflammation, repair, angiogenesis, and tumor invasion.
  • Known regulators of cell motility include growth factors, adhesion molecules, and metalloproteinases.
  • A distinct group of motility-stimulating proteins has recently been identified.

Purpose of the Study:

  • To identify and characterize novel proteins that stimulate cell motility.
  • To explore the potential classification of these proteins as a new group of motility regulators.
  • To investigate the potential physiological roles of these newly identified factors.

Main Methods:

  • Characterization of motility-stimulating proteins using biochemical assays.
  • Analysis of protein properties including solubility and heat lability.

Related Experiment Videos

  • Assessment of protein molecular weight via SDS-PAGE.

    • Main Results:

    • Identified scatter factor (SF), autocrine motility factor (AMF), and migration-stimulating factor (MSF) as motility-stimulating proteins.
    • SF, AMF, and MSF are soluble, heat-labile proteins with molecular weights of 77, 55, and 70 kd, respectively.
    • These factors stimulate migration in various cell types, including epithelial, vascular endothelial, and fibroblasts.

    Conclusions:

    • SF, AMF, and MSF may represent a new class of cell-specific motility regulators.
    • The precise physiological functions of these proteins are yet to be fully established.
    • Emerging data suggest potential involvement in fetal development and tissue repair processes.