Title : Overexpression of CD133 enhances chemoresistance to 5-fluorouracil by activating the PI3K/Akt/p70S6K pathway in gastric cancer cells.

Pub. Date : 2014 Dec

PMID : 25230779






6 Functional Relationships(s)
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1 Overexpression of CD133 enhances chemoresistance to 5-fluorouracil by activating the PI3K/Akt/p70S6K pathway in gastric cancer cells. Fluorouracil prominin 1 Homo sapiens
2 Hence, the present study investigated the function of CD133 in 5-FU resistance in human GC cells. Fluorouracil prominin 1 Homo sapiens
3 Furthermore, CD133 silencing enhanced 5-FU cytotoxicity and apoptotic characteristics, whereas CD133 overexpression increased 5-FU resistance. Fluorouracil prominin 1 Homo sapiens
4 Furthermore, CD133 silencing enhanced 5-FU cytotoxicity and apoptotic characteristics, whereas CD133 overexpression increased 5-FU resistance. Fluorouracil prominin 1 Homo sapiens
5 Notably, Akt inhibition by LY294002 restored the 5-FU cytotoxicity suppressed by CD133 overexpression, while Akt activation by epidermal growth factor reversed the 5-FU cytotoxicity enhanced by CD133 silencing. Fluorouracil prominin 1 Homo sapiens
6 Therefore, CD133 may inhibit 5-FU-induced apoptosis by regulating the expression of P-gp and Bcl-2 family mediated by phosphoinositide 3-kinase/Akt/p70S6K pathway in GC cells. Fluorouracil prominin 1 Homo sapiens