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[Increased expression of IGF-2 in tumor tissue of nephroblastoma]
Verhandlungen Der Deutschen Gesellschaft Fur Pathologie
|January 1, 1989
Abstract:
The incidence of nephroblastoma is increased in a number of syndromes with abnormal growth pattern. Elevated IGF 2-expression has been documented in various Wilms' tumors and a defect in the IGF 2 gene has been noted in 1 case. Southern blot analysis of genomic DNA of nephroblastomas in 5 additional patients after restriction enzyme digest with EcoRI, Pvu II, Pst I and Taq I did not reveal any defect in the IGF 2 gene. Slot blot analysis however showed marked overexpression of IGF 2-mRNA reaching up to more than 25 times the level expressed in unaffected kidney tissue adjacent to the tumor and in normal kidney tissue used as controls.