Abstract:
:The α1,3/4-fucosyltransferases (FUT) subfamily are key enzymes in cell surface antigen synthesis during various biological processes. A novel role of FUTs in tumorigenesis has been discovered recently, however, the underlying mechanism remains largely unknown. Here, we characterized FUT6, a member of α1,3/4-FUT subfamily, in human hepatocellular carcinoma (HCC). In HCC tissues, the expression levels of FUT6 and its catalytic product SLe(x) were significantly up-regulated. Overexpression of FUT6 in HCC cells enhanced S-phase cell population, promoted cell growth and colony formation ability. Moreover, subcutaneously injection of FUT6-overexpressing cells in nude mice promoted cell growth in vivo. In addition, elevating FUT6 expression markedly induced intracellular Akt phosphorylation, and suppressed the expression of the cyclin-dependent kinases inhibitor p21. Bath application of the PI3K inhibitor blocked FUT6-induced Akt phosphorylation, p21 suppression and cell proliferation. Our results suggest that FUT6 plays an important role in HCC growth by regulating the PI3K/Akt signaling pathway.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Guo Q,Guo B,Wang Y,Wu J,Jiang W,Zhao S,Qiao S,Wu Ydoi
10.1016/j.bbrc.2011.11.106subject
Has Abstractpub_date
2012-01-06 00:00:00pages
311-7issue
1eissn
0006-291Xissn
1090-2104pii
S0006-291X(11)02127-9journal_volume
417pub_type
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