Signal transduction in human monocytes and granulocytes through the PI-linked antigen CD14

A possible role for the Pi-linked CD14 molecule in human monocyte and granulocyte signal mediation was investigated. Using flow cytometry and the fluorescent indicators Fluo-3 and dihydrorhodamine-123 it was shown that crosslinking of the CD14 molecule induces an increase in monocyte and granulocyte...

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Veröffentlicht in:	FEBS letters 1990-10, Vol.273 (1-2), p.55-58
Hauptverfasser:	Lund-Johansen, Fridtjof, Olweus, Johanna, Aarli, Ånen, Bjerknes, Robert
Format:	Artikel
Sprache:	eng
Schlagworte:	Antigens, CD Antigens, Differentiation, Myelomonocytic Biological and medical sciences Calcium Calcium - blood CD 14 Cell physiology Flow Cytometry Fundamental and applied biological sciences. Psychology Granulocytes - immunology Granulocytes - physiology Humans Hydrogen Peroxide - blood In Vitro Techniques Leukocyte Lipopolysaccharide Receptors Molecular and cellular biology Monocytes - immunology Monocytes - physiology Oxidative metabolism Phosphatidylinositols - blood Phosphatidylinositols - physiology Signal Transduction
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Zusammenfassung:	A possible role for the Pi-linked CD14 molecule in human monocyte and granulocyte signal mediation was investigated. Using flow cytometry and the fluorescent indicators Fluo-3 and dihydrorhodamine-123 it was shown that crosslinking of the CD14 molecule induces an increase in monocyte and granulocyte cytoplasmic calcium concentration and monocyte H2O2 production. These responses were found to be independent of IgG Fc receptors and suggest an intrinsic signal mediating capacity of the CD 14 molecule.
ISSN:	0014-5793 1873-3468
DOI:	10.1016/0014-5793(90)81049-T