Miyoshi et al. reported a relationship between high WT1 levels and unfavorable prognoses in breast cancer patients, with WT1 levels positively related to proliferation, while liposome encapsulation of a WT1 antisense deoxy-oligonucleotide was found to inhibit cell growth by downregulating WT1 expression [14]. The gene discussed is WT1; the disease is breast carcinoma.