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Figure 3: The effects of HOTAIR siRNA-transfection on GC cell proliferation. (a) The efficiency of HOTAIR siRNA transfection in SGC-7901 and AGS. (b) The effects of HOTAIR knockdown on SGC-7901 and AGS cell growth. (c) The effects of HOTAIR knockdown on cell cycle distribution in SGC-7901 and AGS cells. (d) The effects of HOTAIR knockdown on the protein levels of P21, P53, and Bcl2 in SGC-7901 cells.