AL002c expands metabolically active and proliferating microglia. (A and B) Bar plot of the percentage of cells in cluster 7 (**, P = 6.4 × 10−3; A) and cluster 9 (**, P = 3.4 × 10−3; B) on a per-mouse basis. Data are presented as mean ± SEM. (C) Wilcoxon rank-sum tests comparing cluster 7 to cluster 1 (homeostatic microglia). Genes above the −log(FDR adjusted P values) cutoff of 100 are annotated. (D) Identical to C except comparing cluster 9 to all other clusters. FC, fold-change. (E) Venn diagram showing the number of shared DEGs found with Wilcoxon rank-sum test for cluster 7 and cluster 9. Cluster 7’s DEGs were computed by comparing cluster 7 to cluster 1. Cluster 9’s DEGs were computed by comparing cluster 9 to all other clusters. (F and G) GO term analysis for positive fold-change DEGs in cluster 7 and cluster 9. (H) Mean normalized gene expression grouped by TREM2 variant and antibody treatment in all microglia.