Section 6
Chapter 5,965

Neoplastic transformation of human epithelial cells in vitro after exposure to chemical carcinogens

Milo, G.E.; Noyes, I.; Donahoe, J.; Weisbrode, S.

Cancer Research 41(12 Part 1): 5096-5102


ISSN/ISBN: 0008-5472
PMID: 6171346
Accession: 005964154

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Human foreskin epithelial cells were transformed to an anchorage-independent state of growth (in soft agar) and neoplasia (invasion of chick embryonic skin in vitro). Aflatoxin B1, N-methyl-N'-nitro-N-nitrosoguanidine, propanesultone, beta-propiolactone, or ultraviolet absorbance at 254 nm were used successfully as carcinogens. These foreskin epithelial cells, like human foreskin fibroblasts, were readily transformed when treated in S phase but, unlike the transformed fibroblasts, expression of cellular neoplasia did not require an extended period of time in culture. The invasive features of the transformed human epithelial cells in chick embryonic skin in vitro simulated squamous cell carcinoma.

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