## Abstract 2βAminoβ1βmethylβ6βphenylimidazo[4,5β__b__]pyridine(PhlP) is the most abundant of the heterocyclic amines, a group of potent carcinogens contained in cooked meat and fish. Female F344 rats fed a diet containing 100 or 400 ppm PhIP developed mammary carcinomas within 104 or 52 wk, respec
Frequent c-Ha-ras gene mutations in rat mammary carcinomas induced by 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine
β Scribed by Naomi Hokaiwado; Makoto Asamoto; Young-Man Cho; Katsumi Imaida; Tomoyuki Shirai
- Book ID
- 117466782
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 100 KB
- Volume
- 163
- Category
- Article
- ISSN
- 0304-3835
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2-Amino-1-methyl-6-phenylimidazo(4,5-b)pyridine (PhIP), a compound found in cooked meat, is a mammary gland carcinogen in female Sprague-Dawley rats. PhIP-induced rat mammary gland carcinomas were examined for mutations in several genes (exons) known to regulate cell growth and apoptosis, including
## Abstract Reduced expression of BRCA1 protein, caused by the hypermethylation of its gene promoter and by other mechanisms, is observed in most sporadic human breast cancers, whereas its somatic mutations are rare. In the present study, we demonstrate that immunoreactivity of __Brca1__ was reduce
Activating mutations in and expression of the Ha-ras gene were examined in benign and malignant female Sprague-Dawley rat mammary gland tumors induced by the heterocyclic amine 2-amino-1-methyl-6phenylimidazo[4,5-b]pyridine (PhIP) and promoted by a diet high in polyunsaturated fat. Ha-ras mutations