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Related Experiment Videos

Cell signaling events: a view from the matrix.

Francesco Ramirez1, Daniel B Rifkin

  • 1Laboratory of Genetics and Organogenesis Hospital for Special Surgery, Weill Medical College of Cornell University, 535 East 70th Street, New York, NY 10021, USA. ramirezf@hss.edu

Matrix Biology : Journal of the International Society for Matrix Biology
|June 5, 2003
PubMed
Summary

Extracellular protein macroaggregates, like collagen, play a dual role in cell signaling and tissue development. Their organization influences both structural integrity and instructive signaling during morphogenesis.

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Area of Science:

  • Cell Biology
  • Developmental Biology
  • Biochemistry

Background:

  • Cellular activities rely on signaling molecules like cytokines and growth factors.
  • Extracellular regulation of these signaling molecules is less understood than intracellular pathways.
  • Recent research suggests extracellular protein aggregates are involved in cell signaling.

Purpose of the Study:

  • To investigate the role of extracellular protein macroaggregates in cell signaling.
  • To explore the mechanisms regulating signaling molecule availability in the extracellular space.
  • To understand how macroaggregate organization influences developmental processes.

Main Methods:

  • Analysis of extracellular protein macroaggregate organization in tissues.
  • Investigating the functional coupling between macroaggregates and signaling events.

Related Experiment Videos

  • Studying the instructive and structural roles of collagenous and elastic macroaggregates.

    • Main Results:

    • Extracellular protein macroaggregates participate in signaling events.
    • Tissue-specific organization of collagenous and elastic macroaggregates is functionally coupled to signaling.
    • These macroaggregates perform both instructive and structural functions in development.

    Conclusions:

    • Extracellular protein macroaggregates are key regulators of cell signaling and tissue development.
    • The organization of macroaggregates is critical for their dual signaling and structural roles.
    • This highlights a novel mechanism in cell and developmental biology.