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Recessive transmission of a multiple endocrine neoplasia syndrome in the rat.

Authors: Fritz, A  Walch, A  Piotrowska, K  Rosemann, M  Schaffer, E  Weber, K  Timper, A  Wildner, G  Graw, J  Hofler, H  Atkinson, MJ 
Citation: Fritz A, etal., Cancer Res 2002 Jun 1;62(11):3048-51.
Pubmed: (View Article at PubMed) PMID:12036912

We describe a novel hereditary cancer syndrome in the rat that is transmitted by a recessive gene mutation. Animals exhibiting the mutant phenotype develop multiple neuroendocrine malignancies within the first year of life. The endocrine neoplasia is characterized by bilateral adrenal pheochromocytoma, multiple extra-adrenal pheochromocytoma, bilateral medullary thyroid cell neoplasia, bilateral parathyroid hyperplasia, and pituitary adenoma. The appearance of neoplastic disease is preceded by the development of bilateral juvenile cataracts. Although the spectrum of affected tissues is reminiscent of human forms of multiple endocrine neoplasia (MEN), no germ-line mutations were detected in the Ret or Menin genes that are responsible for the dominantly inherited MEN syndromes in humans. Segregation studies in F1 and F2 crosses yielded frequencies of affected animals entirely consistent with a recessive autosomal mode of inheritance. The lack of the phenotype in F1 animals effectively excludes a germ-line tumor suppressor gene mutation as the causal event. The absence of mutation of known MEN genes and the unique constellation of affected tissues, plus the recessive mode of inheritance, lead us to conclude that the mutation of an as yet unknown gene is responsible for this syndrome of inherited neuroendocrine cancer.

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CRRD Object Information
CRRD ID: 619590
Created: 2002-07-30
Species: All species
Last Modified: 2002-07-30
Status: ACTIVE



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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.