Malignant Transformation in vitro of Rat Liver Cells by Dimethylnitrosamine and N-Methyl-N′-nitro-N-Nitrosoguanidine

Epithelial-like cells originating from 10-day and 8-week old BD rats were treated in vitro with dimethylnitrosamine (DMN) and N-methyl-N′-nitro-nitrosoguanidine (MNNG). Morphologically, no differences were seen between treated and untreated cells up to the time when the cells were transplanted into...

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Detalles Bibliográficos
Autores principales: Montesano, R., Vincent, L. Saint, Tomatis, L.
Formato: Texto
Lenguaje:English
Publicado: Nature Publishing Group 1973
Materias:
Articles
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2008984/
https://www.ncbi.nlm.nih.gov/pubmed/4743905
Descripción
Sumario:Epithelial-like cells originating from 10-day and 8-week old BD rats were treated in vitro with dimethylnitrosamine (DMN) and N-methyl-N′-nitro-nitrosoguanidine (MNNG). Morphologically, no differences were seen between treated and untreated cells up to the time when the cells were transplanted into syngeneic hosts. However, the treated cells grew in soft agar and once injected subcutaneously or intraperitoneally into newborn rats, developed tumours after a latent period of 9-12 weeks. The tumours obtained with DMN-treated cells were well differentiated adenocarcinomata, whereas carcinosarcomata were observed with the MNNG-treated cells. IMAGES:

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