CD1D and neoplasm: Other studies took advantage of the adjuvant capacity of iNKT cells and utilized soluble CD1d-α-GalCer complexes conjugated with tumor-specific antibodies (118), or α-GalCer conjugated with tumor-associated peptides (119, 120) or administration of dendritic cells pulsed with both α-GalCer and long peptides from the melanoma-associated NY-ESO-1 protein (121).