Phenograph clustering of all tissues in GC patients confirmed the diversity of myeloid cells in GC tumors, and macrophages, monocytes, DC subsets, and neutrophil subsets were identified based on the expression of protein markers, including CD11b, CD68, CD163, CD206, CD16, CD14, CD11c, CD141, PPARγ, and HLA-DR, among others. The gene discussed is PPARG; the disease is gastric cancer.