While granulocyte‐macrophage colony‐stimulating factor (GM‐CSF) is also known to contribute to inflammation during EAE and MS (Galli et al., 2019; Kroenke et al., 2010; Pierson & Goverman, 2017; Rothhammer et al., 2011), we did not observe a significant regional difference in VCAM1 transcripts in astrocytes following GM‐CSF treatment (data not shown). Here, CSF2 is linked to myeloid sarcoma.