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Related Experiment Videos

Morphological alterations in rat peritoneal mast cells by stem cell factor

H M Kim1, H Y Shin, E H Lee

  • 1Department of Oriental Pharmacy, College of Pharmacy, Wonkwang University, Iksan, Chonbuk, South Korea.

Immunology
|September 19, 1998
PubMed
Summary

Stem cell factor (SCF) alters mast cell morphology, promoting adhesion to connective tissue. This process is dose-dependent and crucial for mast cells in tissues.

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Area of Science:

  • Immunology
  • Cell Biology

Background:

  • Mast cells play a role in tissue adhesion.
  • Stem cell factor (SCF) is present in tissues and influences mast cell behavior.

Purpose of the Study:

  • To investigate the effect of SCF on mast cell morphology and adhesion.
  • To identify signaling pathways involved in SCF-induced mast cell morphological changes.

Main Methods:

  • Rat peritoneal mast cells (RPMC) were cultured in vitro.
  • Morphological changes were induced by recombinant murine SCF (rmSCF).
  • Inhibitors of various signaling pathways were used to block rmSCF effects.

Main Results:

  • rmSCF induced dose-dependent morphological alterations in RPMC.

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  • The effects of rmSCF were abolished by anti-c-kit ACK2 antibody.
  • Several agents, including TGF-β1 and wortmannin, antagonized rmSCF-induced changes.
  • Nerve growth factor (NGF) also induced morphological changes, but to a lesser extent than rmSCF.

    • Conclusions:

    • SCF-induced morphological alteration is a key step for mast cell adhesion to tissue matrix.
    • SCF signaling pathways are critical for mast cell adhesion under physiological conditions.