Table 3.
Common microglia markers and reagents
Gene (protein)Labeled cellsGenetic linesAntibodiesNotesReference
Cx3cr1 (CX3CR1) Microglia and other myeloid lineage cells Fluor. reporter, Cre, CreERT Quadruple-colored PrismPlus lines available Jung et al., 2000; Parkhurst et al., 2013; Yona et al., 2013; Tay et al., 2017  
Aif1 (IBA1) Microglia and other myeloid lineage cells Fluor. reporter Increase in IBA1 staining often used to suggest activation Hirasawa et al., 2005  
Ptprc (CD45) Microglia and other myeloid lineage cells Fluor. reporter, Cre  Yang et al., 2008  
Itgam (CD11b) Microglia and other myeloid lineage cells DTR/GFP line, Cre  Ferron and Vacher, 2005; Stoneman et al., 2007  
Tmem119 (TMEM119) Microglia Protein does not label young microglia Bennett et al., 2016  
Sall1 (SALL1) Microglia CreERT  Takasato et al., 2004; Inoue et al., 2010; Buttgereit et al., 2016  
Fcrls (FCRLS) Microglia   
P2ry12 (P2RY12) Microglia   
Adgre1 (F4/80) Microglia and other myeloid lineage cells Cre  Schaller et al., 2002  
Cd68 (CD68) Microglia and other myeloid lineage cells Fluor. reporter, rtTA, CreERT2 Often used as a marker of microglial activation Pillai et al., 2009; Franke et al., 2013; Iqbal et al., 2014  
Cd40 (CD40) Microglia and other myeloid lineage cells   
Csf1r (CSF1R) Microglia and other myeloid lineage cells Fluor. reporter, Cre  Required for microglial survival Sasmono et al., 2003; Deng et al., 2010; Schreiber et al., 2013; Loschko et al., 2016  
Gene (protein)Labeled cellsGenetic linesAntibodiesNotesReference
Cx3cr1 (CX3CR1) Microglia and other myeloid lineage cells Fluor. reporter, Cre, CreERT Quadruple-colored PrismPlus lines available Jung et al., 2000; Parkhurst et al., 2013; Yona et al., 2013; Tay et al., 2017  
Aif1 (IBA1) Microglia and other myeloid lineage cells Fluor. reporter Increase in IBA1 staining often used to suggest activation Hirasawa et al., 2005  
Ptprc (CD45) Microglia and other myeloid lineage cells Fluor. reporter, Cre  Yang et al., 2008  
Itgam (CD11b) Microglia and other myeloid lineage cells DTR/GFP line, Cre  Ferron and Vacher, 2005; Stoneman et al., 2007  
Tmem119 (TMEM119) Microglia Protein does not label young microglia Bennett et al., 2016  
Sall1 (SALL1) Microglia CreERT  Takasato et al., 2004; Inoue et al., 2010; Buttgereit et al., 2016  
Fcrls (FCRLS) Microglia   
P2ry12 (P2RY12) Microglia   
Adgre1 (F4/80) Microglia and other myeloid lineage cells Cre  Schaller et al., 2002  
Cd68 (CD68) Microglia and other myeloid lineage cells Fluor. reporter, rtTA, CreERT2 Often used as a marker of microglial activation Pillai et al., 2009; Franke et al., 2013; Iqbal et al., 2014  
Cd40 (CD40) Microglia and other myeloid lineage cells   
Csf1r (CSF1R) Microglia and other myeloid lineage cells Fluor. reporter, Cre  Required for microglial survival Sasmono et al., 2003; Deng et al., 2010; Schreiber et al., 2013; Loschko et al., 2016  

DTR, diphtheria toxin receptor; Fluor. reporter, fluorescent reporter; N, no; Y, yes.

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