Study of the immunomodulatory effect of lithium salt gamma-lactone of 2,3-dehydro-L-gulonic acid on healthy and malignant blood cells

Abstract

The aim of this work was to study the immunomodulatory effects of lithium salt gamma-lactone of 2,3-dehydro-Lgulonic acid (LiAc) on healthy blood leukocytes and leukemia cells in vitro.Materials and methods. Peripheral blood lymphocytes and neutrophils obtained from healthy donors, as well as THP-1 cells (human monocytic leukemia) were used as test systems. To assess the proliferative activity, lymphocyte blast transformation was used. The antiproliferative effect was studied by the 3H-thymidine incorporation assay. Cytotoxic effects were studied using the Alamar Blue test. The effect on the phagocytic activity was studied using the method for assessing the neutrophil function during bacterial phagocytosis.Results. LiAc exerted a dose-dependent effect on target cells, including antiproliferative and cytotoxic effects on leukemia cells and a stimulating effect on neutrophils in phagocytosis.Conclusion. LiAc can be considered as a promising drug with immunomodulatory effects, including a suppressive effect on the proliferative activity of leukemia cells and a stimulating effect on immune mechanisms mediated by neutrophils and macrophages.