MELN were generated by transfection of breasr cancer MCF-7 cells with the ERE-betaGlobin-Luciferase-SV40-Neomycin plasmid. rnThe plasmid ERE-betaGlob-Luc-SVNeo contains a luciferase gene driven by estrogen receptor responsive element (ERE) in front of beta-globin promoter and a neomycin phosphotransferase gene under the control of SV40 promoter. rn