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Figure 5 | Cancer Cell International

Figure 5

From: The association between Salt-inducible kinase 2 (SIK2) and gamma isoform of the regulatory subunit B55 of PP2A (B55gamma) contributes to the survival of glioma cells under glucose depletion through inhibiting the phosphorylation of S6K

Figure 5

Knockdown of SIK in B55gamma overexpression cells recovers the phosphorylation of S6K. A. U251V, U251B55gamma, U138V and U138B55gamma cells were transfected with scramble siRNA (Ctr) or SIK2 siRNA. 48 hrs after siRNA transfection, cell lysates were prepared and Western blotting was performed to detect the phosphorylation of S6K statues. The β-actin protein was used as a loading control. B. U251B55gamma (left) and U138B55gamma (right) cells were transfected with scramble siRNA (Ctr) or SIK2 siRNA. 48 hrs after siRNA transfection, cell were plated into 6-well plate for overnight, then the regular medium was replaced by glucose free medium for 36 h-starvation followed by the cell viability assay. Columns, mean of three independent experiments; bars, SE. *, P < 0.05.

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