H19 and cervical cancer: Moreover, transfections of HPV16 (CaSki) and HPV18 (HeLa, SW756) positive cervical cancer lines with an H19 promoter driven diphtheria toxin A expression vector inhibited their proliferation [121], suggesting that BC-819 or a similar reagent may also show therapeutic efficacy in HPV16 and HPV18 positive lesions and cancers.