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RISS 인기검색어
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- 저자 : Haybaeck, Joh (검색결과 1 건)
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Golob-Schwarzl, Nicole,Krassnig, Stefanie,Toeglhofer, Anna M.,Park, Young Nyun,Gogg-Kamerer, Margit,Vierlinger, Klemens,Schrö,der, Fabian,Rhee, Hyungjn,Schicho, Rudolf,Fickert, Peter,Haybaeck, Joh Elsevier 2017 European journal of cancer Vol.83 No.-
<P><B>Abstract</B></P> <P>Hepatocellular carcinoma (HCC) is the third leading cause of cancer-related deaths worldwide. The initiation of protein translation is an important rate-limiting step in eukaryotes and is crucial in many viral infections. Eukaryotic translation initiation factors (eIFs) are involved in the initiation step of protein translation and are linked to the phosphatidylinositol-3-kinases PI3K/AKT/mTOR pathway. Therefore we aimed to investigate a potential role of eIFs in HCC. We herein report on the immunohistochemical expression of the various eIF subunits in 235 cases of virus-related human HCC. Additionally, we used immunoblot analysis to investigate the expression of virus-related HCC and non-virus-related HCC in comparison to controls. Mammalian target of rapamycin (or mechanistic target of rapamycin as it is known now (mTOR) and activated mTOR were significantly increased in chronic hepatitis C (HCV)-associated HCC, in HCC without a viral background, in alcoholic liver disease and Wilson disease. pPTEN, phosphatase and tensin homologue (PTEN) and pAKT showed a significant increase in HBV- and HCV-associated HCC, chronic hepatitis B, HCC without a viral background, alcoholic steatohepatitis (ASH) and Wilson disease. Phosphorylated (p)-eIF2α, eIF2α, eiF3B, eIF3D, eIF3J, p-eIF4B, eIF4G and eIF6 were upregulated in HCV-associated HCC. eIF2α, p-eIF4B, eIF5 and various eIF3 subunits were significantly increased in chronic hepatitis B (HBV)-associated HCC. HCC without viral background displayed a significant increase for the eIF subunits p-2α, 3C, 3I, 4E and 4G. We noticed engraved differences in the expression pattern between chronic hepatitis B and C, HBV- and HCV-associated HCC and non-virus-related HCC.</P> <P><B>Highlights</B></P> <P> <UL> <LI> mTOR and activated mammalian target of rapamycin (mTOR) were significantly increased in liver cancer. </LI> <LI> Various eukaryotic translation initiation factor (eIF) subunits were increased in liver cancer. </LI> </UL> </P>
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