Besides colorectal malignancy, association of RPs to cancers includes uL14 in lung adenocarcinoma [16]; eL22 in T-cell acute lymphoblastic leukemia [17]; eL8, eL37, eS19, eS21, eS24, and eS27 in prostate cancer [18–20]; uS8 in breast cancer [21], eS27 in gastric carcinomas [22]; eL5 and eL14 in ovarian cancer [23]; and uS8 and RACK1 in liver cancer [24, 25]. Here, RPS15A is linked to breast cancer.