Expression of TLF genes in human DRG macrophages. (A) UMAP of 2,098 subclustered macrophage nuclei from five human DRG donors (Avraham et al., 2022) and expression of TLF markers across clusters. (B) FOLR2 expression by immunostaining localized to Iba1⁺MRC1⁺ interstitial macrophages (arrowheads) and absence from Iba1⁺MRC1⁻ perineuronal macrophages. Scale bar, 50 μm.