title: Mutagenicity of 2-amino-3-methylimidazo[4,5-f]quinoline (IQ) in the granuloma pouch assay.
abstract: The rat granuloma pouch assay was used to assess the in vivo mutagenic potential of 2-amino-3-methyl-imidazo[4,5-f]quinoline (IQ), a heterocyclic aromatic amine which is formed during the frying of meat and broiling of fish. The assay was performed with and without pre-induction by Aroclor. In the initial experiment IQ was injected directly into the pouch of non-induced rats. A 10-fold increase in mutation frequencies was obtained with the 2.0 mg/pouch dose of IQ with uninduced cell populations. In a second study IQ was injected intraperitoneally and into the pouch of rats that had been pre-induced with Aroclor. The dose of IQ administered varied from 0.1 to 2.0 mg/pouch. A 10-fold increase in mutation frequencies was obtained with the 2.0 mg/pouch dose of IQ with uninduced cell populations. Aroclor treatment produced no significant increase in mutation frequencies over uninduced animals. Its mutagenic effect is about 10-fold weaker than that of benzo[a]pyrene or N-methyl-N'-nitro-N-nitrosoguanidine (MNNG).
mesh_terms: D000818:Animals; D001140:Aroclors / Q000494:pharmacology; D006099:Granuloma; D008297:Male; D009152:Mutagenicity Tests; D009153:Mutagens; D011804:Quinolines / Q000633:toxicity*; D051381:Rats
chemical_list: D001140:Aroclors; D009153:Mutagens; D011804:Quinolines; C029216:2-amino-3-methylimidazo(4,5-f)quinoline