We also demonstrated that PHA, but also LPS, significantly increased the levels of G-CSF in BCP-ALL blasts vs. the control (up to 23.9 pg/mL for PHA and 18.8 pg/mL for LPS stimulation vs. 3.7 pg/mL for the control; p = 0.028 and p = 0.0376, respectively). Here, CSF3 is linked to acute lymphoblastic leukemia.