GPR34 and central nervous system cancer: (c) Graph shows the log-fold change expression of SGmic genes (P2ry13, P2ry12, Gpr34, Slc2a5, Siglec-H, Olfml3, Tmem119, Fcrls) in glioma-associated microglia isolated from GL261 tumors as compared to microglia isolated from healthy control brains.