These markers include transmembrane protein 119 (TMEM119, a homeostatic microglia marker), P2Y12 (expressed by human microglia during development), Sal-like 1 (a transcriptional regulator that defines microglia identity and function), and sialic acid-binding immunoglobulin-type lectin (a specific microglia activation marker involved in tumor recognition and engulfment) [9]. The gene discussed is TMEM119; the disease is neoplasm.