The integration analysis between our dataset and published dataset. A. UMAP plot showing the source distribution from the integration analysis, including the BMMSCs and WJMSCs from our data and the cultured human endometrial MSCs [57] , uncultured human UCMSCs [12], and primary BMMSC [56] from published scRNA-seq data. B. Violin plots showing the expression levels of genes involved in mesodermal development (LEPR, CXCL12, and ANGPT1) in each cluster. C. The feature plot shows the expression of MSC markers (CD73/NT5E, CD90/THY1, and CD44) in each source. UCMSCs, umbilical cord MSCs; eMSCs, endometrial MSCs.