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Related Experiment Videos

P-selectin knockout: a mouse model for various human diseases

D D Wagner1

  • 1Center for Blood Research, Harvard Medical School, Boston, MA 02115, USA.

Ciba Foundation Symposium
|January 1, 1995
PubMed
Summary
This summary is machine-generated.

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Mice lacking P-selectin show defective leukocyte adhesion and reduced extravasation. This P-selectin deficiency may offer benefits in treating inflammatory diseases and potentially metastasis.

Area of Science:

  • Immunology
  • Cell Biology
  • Vascular Biology

Background:

  • P-selectin is a cell adhesion receptor on platelets and endothelial cells.
  • It mediates leukocyte recruitment during inflammation and wound healing.
  • Dysregulated leukocyte recruitment is implicated in various diseases like atherosclerosis, diabetes, and cancer metastasis.

Purpose of the Study:

  • To investigate the role of P-selectin in pathological processes.
  • To evaluate the therapeutic potential of P-selectin deficiency.
  • To assess the impact of P-selectin absence on leukocyte-endothelial interactions.

Main Methods:

  • Gene targeting was used to create P-selectin-deficient mice.
  • Leukocyte rolling and extravasation were analyzed in mesenteric venules.

Related Experiment Videos

  • P-selectin-deficient mice are being tested in disease models.

    • Main Results:

    • Leukocyte interaction with the vessel wall is impaired in P-selectin-deficient mice.
    • Leukocyte rolling in mesenteric venules is significantly reduced.
    • Leukocyte extravasation at sites of inflammation and injury is limited.

    Conclusions:

    • P-selectin plays a critical role in leukocyte recruitment to sites of inflammation and injury.
    • Absence of P-selectin limits leukocyte adhesion and migration.
    • Further studies will determine the therapeutic benefits of P-selectin absence in various disease models.