 - The initial group of 3-6 participants will not receive any other therapy with the iNKT cell infusions. However, the subsequent group of 6 patients will in addition receive GM-CSF, which can further stimulate the immune system and may increase the effects of the iNKT cells. This medication is administered by subcutaneous injection and will be given daily for 10 days beginning the day of the second and third infusion. 