In a dose-dependent manner, the breast cancer risk alleles CCL5 rs2280789-G and CCL5 rs2107538-T were predictors of low levels of CCL5 expression in whole blood and lymphocytes of GTEx dataset (P = 7 × 10−6 and 6 × 10−8, respectively) (Figures S3A,B). This evidence concerns the gene CCL5 and breast carcinoma.