To further verify the regulation roles of FOXA1 on DSCAM-AS1, we knocked down FOXA1 by siRNAs in lung adenocarcinoma, breast cancer, and prostate cancer cell lines, respectively, qPCR and Western blotting showed these siRNAs could effectively silence FOXA1 levels. The gene discussed is DSCAM-AS1; the disease is breast carcinoma.