title: Inhibition of intercellular communication between liver cells by the liver tumor promoter 1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane.
abstract: A dose dependent inhibition of intercellular communication (metabolic cooperation) between primary cultures of rat liver hepatocytes and an established adult rat liver epithelial cell 6-thioguanine resistant strain by the liver tumor promoter 1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane (DDT) is demonstrated. This in vitro assay is proposed to evaluate the tumor promoting activity of oncogenic agents shown to be non-genotoxic in the liver culture systems.
mesh_terms: D000818:Animals; D002450:Cell Communication / Q000187:drug effects*; D002478:Cells, Cultured; D003634:DDT / Q000633:toxicity*; D004305:Dose-Response Relationship, Drug; D008099:Liver / Q000166:cytology / Q000187:drug effects*; D008113:Liver Neoplasms / Q000139:chemically induced*; D051381:Rats; D013866:Thioguanine / Q000494:pharmacology
chemical_list: D003634:DDT; D013866:Thioguanine