In the MRP family, 12 members were specifically upregulated in BC (P < 0.001) and thus identified as differentially expressed genes (DEGs), including MRPL3, MRPL13, MRPL14, MRPL17, MRPL24, MRPL42, MRPL47, MRPS23, DAP3, MRPS30, MRPS34, MRPS35 (Fig. 1). This evidence concerns the gene MRPL42 and breast cancer.