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Effect of SB on A172 cell morphology and intracellular FAK and MLC20 phosphorylation. Immunostaining of A172 cells treated with the indicated concentrations (0–4 mM) of SB for 48 h using phospho-specific pY397 FAK antibody. White arrows indicate the focal adhesions at the cell peripheral regions. Scale bar=20 µm. SB, sodium butyrate; FAK, focal adhesion kinase; MLC, myosin light chain.
