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  • Title: [The imprinting status and expression of insulin-like growth factor 2 gene in human hepatocellular carcinoma].
    Author: He WZ, Qin Y, Li B, Liu JY, Sun ZL, Sun ZF.
    Journal: Sichuan Da Xue Xue Bao Yi Xue Ban; 2004 Jul; 35(4):466-9. PubMed ID: 15291100.
    Abstract:
    OBJECTIVE: To study the imprinting status and expression level of insulin-like growth factor 2 (IGF2) gene in hepatocellular carcinoma and to provide a clue for elucidating the mechanism of carcinogenesis of hepatocellular carcinoma. METHODS: The heterozygote status of IGF2 gene was detected by restriction fragment length polymorphism. The imprinting status and expression level of IGF2 were evaluated by semi-quantitative reverse transcription-polymerase chain reaction. RESULTS: It was found that 10/18 (55.6%) of hepatocellular carcinoma showed the gain of imprinting (GOI), with 6/10 (60%) adjacent cirrhosis of liver tissues also displaying GOI of IGF2. Overexpression of IGF2 in cancer tissues was detected in 9/18 (50%) samples, but no significant difference was observed among each imprinting status. CONCLUSION: GOI of IGF2 may take part in human hepatocellular carcinogenesis.
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