We obtained CD133 + (Tumor Stem-Like Cells) and CD133- (Parental Tumor Cells) LUAD cells from the GSE166722 dataset, which is a LUAD cohort of early stage (stage I&II) patients with lymph node metastasis information, and the GSE35603 dataset. The gene discussed is PROM1; the disease is metastatic malignant neoplasm in the lymph nodes.