Additionally, notable upregulations of RAC3 in tumor tissues were observed in the TCGA pan‐cancer, such as BLCA, BRCA, CESC, COAD, ESCA, HNSC, LIHC, LUAD, LUSC, PCPG, PRAD, STAD, and UCEC (Figure S4B). Here, RAC3 is linked to neoplasm.