CD1D and neoplasm: These findings seem to be related to some extent to findings in the NKT cell field, where CD1d restricted type 2 NKT cells that—in contrast to iNKT cells (also called type 1 NKT cells), show a diverse (broad) TCR repertoire and ligand recognition (not responding to αGalCer)—have been associated with the regulation and the inhibition of tumor immunity in murine tumor models and patients (reviewed in [110]).