Interestingly, when we stratified GBM patients based on their expression of CXCL8 (IL8, 373 patients with detectable IL8), a potent neutrophil recruitment chemokine in humans (same method as described in Fig. 1A), increased expression of CXCL8 was associated with reduced patient survival (Fig. 3F), analogous to prior reports16. The gene discussed is CXCL8; the disease is glioblastoma.