The results of this test showed that at all time points after injection, the serum CAT activities in sSCP1 group were the highest, significantly higher than those in VC and BC groups, on D7–D14 significantly higher than those in SCP group and on D21–D28 numerically higher than that in SCP group, while in SCP group on D7–D14 were significantly higher than those in VC and BC group, and on D21–D28 significantly higher than that in BC group and numerically higher than that in VC group. The gene discussed is CAT; the disease is breast cancer.