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Related Experiment Videos

Leucocyte capillary migration: an adherence dependent phenomenon.

R Lomnitzer, A R Rabson, H J Koornhof

    Clinical and Experimental Immunology
    |August 1, 1976
    PubMed
    Summary
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    Leucocyte inhibitory factor (LIF) inhibits polymorphonuclear leucocyte (PMN) migration and increases PMN adhesion, likely by affecting micro-filament function. This suggests shared mechanisms for leucocyte migration and adhesion influenced by LIF.

    Area of Science:

    • Immunology
    • Cell Biology

    Background:

    • Polymorphonuclear leucocytes (PMNs) are crucial for inflammatory responses.
    • Understanding the regulation of PMN migration and adhesion is vital for controlling inflammation.

    Purpose of the Study:

    • To elucidate the mechanism of action of leucocyte inhibitory factor (LIF) on PMN migration and adhesion.
    • To compare the effects of LIF on PMN migration and adhesion.

    Main Methods:

    • Compared PMN migration out of capillary tubes with PMN adhesion to cotton wool columns.
    • Investigated the effects of cytochalasin B, colchicine, vinblastine, Mg2+, and Ca2+ on these processes.
    • Assessed the influence of LIF on PMN migration and adhesion.

    Main Results:

    Related Experiment Videos

  • Cytochalasin B inhibited PMN migration and increased adhesion, an effect reversible by agents increasing cyclic AMP.
  • LIF inhibited PMN migration and increased PMN adhesion.
  • Mg2+ was essential for LIF's inhibitory effect on PMN migration, while Ca2+ was not.
  • Colchicine and vinblastine did not affect PMN migration or adhesion.

    • Conclusions:

    • Leucocyte migration and adhesion share similar underlying mechanisms.
    • LIF influences both PMN migration and adhesion, likely by impacting micro-filament function.