HJURP mRNA levels were significantly correlated with estrogen receptor (ER), progesterone receptor (PR), Scarff-Bloom-Richardson (SBR) grading, age, and Ki67 proliferation index, but not with pathological stage, ERBB2, tumor size, or lymph node status, and showed an association with shortened disease-free survival and overall survival in BC patients (Hu et al., 2010) (Table 1). This evidence concerns the gene PGR and breast cancer.