Inhibition of intercellular communication: An in vitro assay for detecting potential tumour promoters

Autor: J. Fentem, Michael Balls, A. Cooper
Rok vydání: 1994
Předmět:
Zdroj: Toxicology in Vitro. 8:535-537
ISSN: 0887-2333
DOI: 10.1016/0887-2333(94)90009-4
Popis: The effects of non-cytotoxic concentrations of 13 chemicals on gap junctional intercellular communication (GJIC) in human keratinocytes and WB 344 cells were determined using a scrape-labelling method. The chemicals were selected according to their reported tumour-promoting effects in either the skin or liver, or their known skin irritancy potential. The in vitro assay was able to discriminate between genotoxic and non-genotoxic chemicals and, with keratinocyte cultures, ranked correctly a series of phorbol esters with regard to their reported tumour-promoting potencies in vivo. The data obtained support the suggestion that measurement of the inhibition of GJIC in vitro may provide a means to distinguish substances that have different tumour-promoting potencies.
Databáze: OpenAIRE