In the context of gastric cancer, RPL15, RPL6 and RPS13 exhibited upregulated expressions, while in colorectal cancer, RPS18, RPS23, RPL28 and RPL32 were found to be downregulated, implicating these ribosomal proteins as potential diagnostic markers for gastric and colorectal cancers, respectively [18]. This evidence concerns the gene RPL15 and colorectal cancer.