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PTBP1 promotes glutamine metabolism of HCC cells. (a) HepG2 cells were transfected with control siRNA or siPTBP1. Expressions of GLS were examined by western blot. (b) Glutamine uptake and (c) GLS activity from the above transfected cells were examined. (d) HepG2 CDDP Res cells were transfected with control siRNA or siPTBP1. Expressions of GLS were examined by western blot. (e) Glutamine uptake and (f) GLS activity from the above transfected cells were examined. *p < 0.05; **p < 0.01.
