SIRPA and lung adenocarcinoma: We used The Cancer Genome Atlas (TCGA) data set to focus on differential expression analysis of the SIRP family members in 450 lung adenocarcinoma (LUAD) tumor samples, along with 50 adjacent normal tissues (TCGA LUAD data set was downloaded from GDC Data Portal at https://portal.gdc.cancer.gov/projects/TCGA-LUAD).