Since a tendency for increased concentrations of hematopoietic growth factors such as GM‐CSF and G‐CSF were identified in the plasma of responder patients (Table EV2), and a correlation between FKN levels and myeloid diversity was also found (Fig 1H), we included cancer cell lines overexpressing key hematopoietic growth factors as controls (Fig EV3G). Here, CX3CL1 is linked to cancer.