| abstract |
Provided is more effective composition for NKT cell activation. n A composition for NKT cell activation comprising a glycosphingolipid having a structure represented by the following formula (1):n nwherein R 1 represents the following formula (1-1):n nwherein R 3 represents alkyl or alkenyl and R 4 represents alkyl; and nR 2 represents hydrogen, or α-galactose, α-glucose, α-mannose, α-glucosamine, β-glucosamine or a combination thereof. |