Figure S2. Recombinant IL-6 promotes HepG2 cell invasion in a dose-dependent manner.

(A) Representative images of invading HepG2 cells that treated by different levels of recombinant IL-6. At a concentration of 100 ng, IL-6 significantly promotes the invasion of HepG2 cells. (B) The calculated number of invading cells. Data were expressed by mean ± SEM from triplicates. *P<0.05, compared to serum free medium treated control cells.

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