Disialoganglioside GD2 is a cell surface-associated glycosphingolipid, which comprises sialic acid moiety and is regarded as a carbohydrate antigen.. It is expressed in the skin melanocytes, central and peripheral nervous system.
Disialoganglioside GD2 is expressed in neuroblastoma, melanoma and small cell lung cancer. It is an immunotherapeutic target and is also regarded as a tumor-associated antigen. GD2 may favor cell migrationin tumors by promoting cell growth, as well as extracellular matrix component attachment.