Large granular lymphocytes: Morphological and functional properties I. Results in normals.

Autor: Gastl, G., Schmalzl, F., Huhn, D., Gattringer, C., Huber, C.
Zdroj: Blut: Zeitschrift für die Gesamte Blutforschung; 1983, Vol. 46 Issue 6, p297-310, 14p
Abstrakt: Large granular lymphocytes (LGL) represent a morphologically distinct mononuclear cell type. In healthy individuals an average of 12.5±5.2% of peripheral mononuclear cells exhibit this morphology. Structurally they are characterized by azurophilic granules, light cell density, low surface adherence and expression of Fc-IgG receptors. Functional analyses on LGL suspensions enriched by means of density gradient fractionation and adherence procedures included testing of T-cell and monocyte-specific in vitro reactions as well as evaluation of their natural cytotoxicity (NC). Results indicated a close correlation between the percentages of LGL and the capacity to bind and to lyse NC-susceptible tumor targets. In agreement with others we would thus conclude that LGL embrace the majority of NK-effector cells. The morphological definition of LGL provides an additional tool for the clinical evaluation of this cell mediated immune reactivity. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index