Fig. 1: UMAP clustering analysis and cell annotation of scRNA-seq data from GC tissue samples.

A UMAP clustering analysis grouped cells into 19 cell clusters; B UMAP plot shows similarities and differences among cells from different sources; C–D UMAP plot separately shows similarities and differences among cells from different sources; E 19 cell clusters are annotated into 6 cell types; F the proportion of each cell type in 7 GC tissue samples; G Heatmap of the top 10 marker gene expression in each cell cluster, with boxes of different colors representing differentially expressed genes between different cell types.