CYP24A1 and myeloid sarcoma: Even though this gene constitutes a robust biomarker of the generation of vitD3-tolDC, as discussed above, its expression also manifested important differences in iDC from healthy donors and MS patients; compared to mDC, a strong repression of CYP24A1 was observed in healthy donor samples, but the expression of this gene in iDC from MS patients was similar to mDC.