of borderline significancep = 0.08
While a decline of PD-1 was observed in the whole population of NDMM CD4 + T cells, including both Teff and Treg subsets, the loss of PD-1 was more pronounced in Treg cells ( p = 0.016) ( Figure 1 b); in Teff cells, a decrease of PD-1 was of borderline significance ( p = 0.08) ( Figure 1 b).