title: Selective induction of pancreatic ductular tumors by single doses of N-nitrosobis(2-oxopropyl)amine in Syrian golden hamsters.
abstract: The selectivity of response by the Syrian hamster pancreas to the neoplastic effect of N-nitrosobis(2-oxopropyl)amine (BOP) was demonstrated by single subcutaneous injections of the compound. Only occasional tumors were induced simultaneously with those of the pancreas in the biliary ducts, kidneys and lungs of a few hamsters. In the pancreas, the ductules, especially those of an intrainsular location, were the cells primarily affected. The responded to doses as low as 1/40 of the LD50, whereas ductal lesions were found only in some hamsters treated with doses above 1/5 of the LD50. Hence it is concluded that hamster ductular cells are the most responsive to the carcinogenic action of BOP.
mesh_terms: D000230:Adenocarcinoma / Q000139:chemically induced; D000818:Animals; D006224:Cricetinae; D004305:Dose-Response Relationship, Drug; D005260:Female; D007928:Lethal Dose 50; D008297:Male; D009374:Neoplasms, Experimental / Q000139:chemically induced; D009602:Nitrosamines / Q000633:toxicity*; D010190:Pancreatic Neoplasms / Q000139:chemically induced*; D012737:Sex Factors
chemical_list: D009602:Nitrosamines; C013622:nitrosobis(2-oxopropyl)amine