Gangliosides from human melanoma immunomodulate response of T cells to interleukin-2

Abstract
The gangliosides expressed by normal melanocytes are predominantly GM3 (>90%) and GD3 (N-acetylgalactosamine. Since different gangliosides can up-regulate and down-regulate lymphocyte responses to IL-2, the ganglioside phenotype of melanoma cells may play a major role in determining whether an individual tumor causes immune stimulation or suppression.