HOMEPRODUCTSCOMPANYCONTACTFAQResearchDictionaryPharmaSign Up FREE or Login

Evaluation of transgenic mouse bioassays for identifying carcinogens and noncarcinogens.

Abstract
Data supporting the use of transgenic lines to identify carcinogens and noncarcinogens are thus far based on a limited number of chemicals for which there are also long-term bioassay results in rats and/or mice. Six chemicals have been tested in the heterozygous p53-deficient mice and 13 in the Tg.AC line. The results show that the p53def responds rapidly to mutagenic carcinogens and the Tg.AC responds rapidly to both mutagenic and nonmutagenic carcinogens. Neither transgenic line responded to the noncarcinogens that were tested. The p53def line failed to respond to two nonmutagenic carcinogens (N-methyloacrylamide and reserpine), the Tg.AC line failed to respond to ethyl acrylate, a nonmutagenic chemical that induced tumors of the forestomach when administered by gavage, and to triethanolamine that caused an increase in hepatocellular tumors in B6C3F1 mice via skin painting. Both of the latter chemicals are examples of highly specific responses related to either route of administration or to strain susceptibility. Further efforts to evaluate the range of chemicals to which these transgenic lines respond are currently in progress.
AuthorsR W Tennant, J Spalding, J E French
JournalMutation research (Mutat Res) Vol. 365 Issue 1-3 Pg. 119-27 (Sep 1996) ISSN: 0027-5107 [Print] Netherlands
PMID8898993 (Publication Type: Journal Article, Review)
Chemical References
  • Carcinogens
Topics
  • Animals
  • Carcinogenicity Tests (methods)
  • Carcinogens (toxicity)
  • Humans
  • Mice
  • Mice, Transgenic
  • Mutagenicity Tests (methods)
  • Neoplasms, Experimental
  • Rats

Join CureHunter, for free Research Interface BASIC access!

Take advantage of free CureHunter research engine access to explore the best drug and treatment options for any disease. Find out why thousands of doctors, pharma researchers and patient activists around the world use CureHunter every day.
Realize the full power of the drug-disease research graph!


Choose Username:
Email:
Password:
Verify Password:
Enter Code Shown: