Immunophenotypic features of T lymphocytes and NK cells. Detailed immunophenotypic features of CD4 and CD8 T lymphocytes, as well as CD56dim and CD56bright NK cells in PB samples from heathy individuals aged >60 years (n = 10) and high-risk patients with SMM (n = 31) studied at baseline and after 3 and 9 cycles of induction therapy with LenDex with regard to antigen expression of activation (A) and Th1-related immune response markers (B). Bars represent median values; vertical lines represent the upper bound of the 95% confidence intervals.