Detection of CD1d-LPC⁺ T cells in multiple myeloma patients. (A) Representative FACS dot plots of a healthy donor and a myeloma patient stained with CD1d dimer loaded with vehicle control or LPC. The number in the quadrant corresponds with the percentage of cells of total CD3⁺ cells. Data shown are gated for live cells. (B) Summary of percentage of CD1d-LPC⁺ cells of total CD3⁺ for healthy donors (n = 22) and multiple myeloma patients (n = 11). Each dot corresponds to one donor. Horizontal bars represent means (*P < .05).