TNFSF13B and leukemia: BAFF alone improved ALL cell survival (Figure 6B, mean 62.51%, range 29.67–110.3%; p = 0.0078 vs. control); as expected, CD40L stimulation increased leukemia cell viability in comparison to control conditions (Figure 6B, mean 69.57%, range 33.6–114.0%; p = 0.0078 vs. control), without significant differences between these two conditions (Figure 6B, p = 0.1484).