IFNG and myeloid sarcoma: Furthermore, the number of cytokine-expressing T-cells in aCD20-naïve MS patients was similar to HC (geometric mean: IFNγ+ = 13.9, P = 0.99; IL-2+ = 78.6, P> 0.99; IFNγ+/IL-2+ = 8.5, P = 0.98), suggesting that the observed increase in cellular response after first exposure is specific to treatment with anti-CD20 therapy.