Figure 2.Increased numbers of CD4+ T cells in aged miceBone marrow cells from 3 and 12 months old WT, CD137−/− and CD137L−/− mice were stained for CD3, CD137, CD4 and CD8. (A) Gating strategy of CD137+ T cells. (B,C) Numbers of (B) CD137+, CD4+ and (C) CD137+, CD8+ T cells. (D,E) Numbers of (D) CD137−, CD4+ and of CD137−, CD8+ T cells. Each group consisted of at least 5 mice. Data are representative of two independent experiments. *p<0.05.
