Abstract
The interaction of endothelial cells with cells of the microenvironment, including monocytes/ macrophages, and extracellular matrix during angiogenesis is controlled by cytokines. The stimulating effect bFGF, IL-8, and VEGF on the formation of capillary-like structures by endothelial cells was demonstrated in both monoculture and in co-culture with THP-1 cells; in the latter case, the effects of bFGF and VEGF were more pronounced. IL-8 reduced branching of vascular tubes in co-culture in comparison with monoculture of endothelial cells. Placental growth factor PlGF had no effect of tube formation by endothelial cells in monoculture, but in co-culture with THP-1 cells this cytokine in high concentrations exhibited proangiogenic activity. TGFb inhibited the formation of vascular tubes by endothelial cells and its antiangiogenic potential was more pronounced in co-culture with THP-1 cells.
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