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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Pathologic and biochemical effects of azaserine in inbred Wistar/Lewis rats and noninbred CD-1 mice.

Inbred W/LEW rats and noninbred CD-1 mice were compared for responsiveness to induction of pancreatic adenocarcinomas by azaserine. At 1 year following the first of 15 weekly ip injections of 10 mg azaserine/kg body weight, the rats had a pancreatic adenoma incidence of 71% (12/17) and a pancreatic adenocarcinoma incidence of 35% (6/17), with 1 invasive adenocarcinoma. The mice showed none of these advanced lesions, although numerous pancreatic atypical acinar cell nodules (AACN) were present. An examination of the number and size of the AACN showed the rats to hve more and larger AACN thatn did the mice. The concentration of [14C]azaserine and/or its metabolites was greater in rat pancreas than in mouse pancreas. Alkaline sucrose gradients were used to compare azaserine-induced pancrewtic and liver DNA damage in W/LEW and F344 rats, the CD-1 mouse, the Syrian golden hamster, and the strain 13 guinea pig. DNA damage was detected 1 hour following azaserine administration in both pancreata and livers of all animals tested and persisted for at least 1 week in the pancreata of all animals except the CD-1 mouse; however, neither the degree nor persistence of DNA damage accurately reflected the differing responsiveness of these species to induction of pancreatic AACN or neoplasms by azaserine.[1]


  1. Pathologic and biochemical effects of azaserine in inbred Wistar/Lewis rats and noninbred CD-1 mice. Roebuck, B.D., Lilja, H.S., Curphey, T.J., Longnecker, D.S. J. Natl. Cancer Inst. (1980) [Pubmed]
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