MRC1 and neoplasm: In the present study, PR+ cells were DC (cluster 6), macrophages (cluster 8), Vδ2 + γδT cells (cluster 9), and innate immune cells (cluster 34); the majority of PR+ immune cells were CD68 + CD206 + CD14 + tumor-associated macrophages (1.7% of immune cells in EC), which were negatively related to patients’ survival.