Studies using a complex of the E1A gene with 3β[N-(n′,n′-dimethylaminoethane)-carbamoyl] cholesterol/dioleoylphosphatidyl-ethanolamine (tgDCC-E1A) for gene delivery have encouraging results, as liposome mediated E1A gene transfer significantly inhibited growth of ovarian cancers in treated mice [162]. The gene discussed is DHTKD1; the disease is ovarian cancer.