Fig. 3

Distinct cellular composition differences in digested ME from endometriosis cases vs. controls are revealed by scRNA-Seq. The data taken from the UMAP plot in Fig. 2 is separated into two groups: controls (n = 9, providing 14,327 cells) and endometriosis cases (n = 11, providing 11,924 cells). The most striking difference is the increased fractions of uterine NK cells (uNK1 and uNK2) in the endometrial tissues of controls as compared to cases. In contrast, B cells are significantly enriched in cases. A formal analysis of enrichment is given in Fig. 4 and confirms the significant enrichment of uNK cells and B cells in controls and cases, respectively. The positive gene markers used to generate the cell clusters shown are included in Additional file 2