a non-angiogenic keratinocyte line , cl-2 , derived from cultures of untreated epithelium and 3 lines of carcinogen-initiated keratinocytes , pn3 , 5 , and 7 , of varying angiogenic potential were fused , using polyethylene glycol , to 3 tumorigenic , potently angiogenic , drug-resistant , hamster pouch carcinomas cell lines : hcpc-1 , aw16e1-1 , and aw16 e1-2 .
C0014609
epithelium
C0007097
carcinomas