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

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Deregulation of both imprinted and expressed alleles of the insulin-like growth factor 2 gene during beta-cell tumorigenesis.

In a mouse model of multistage carcinogenesis elicited by the SV40 large T-antigen ( Tag) oncogene in pancreatic beta cells, the gene for insulin-like growth factor IGF2 is focally up-regulated and functionally implicated in tumour development. The IGF2 gene is differentially regulated in normal tissues: the paternal allele is transiently expressed during embryogenesis, whereas the maternal allele is genomically imprinted and inactive. Crossbred mice carrying the Tag oncogene and a disruption of either the paternal or maternal allele of IGF2 reveal that both alleles are co-activated early during tumour development, and that each contributes to malignant hyperproliferation and consequent tumour volume.[1]

References

  1. Deregulation of both imprinted and expressed alleles of the insulin-like growth factor 2 gene during beta-cell tumorigenesis. Christofori, G., Naik, P., Hanahan, D. Nat. Genet. (1995) [Pubmed]
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