Fig. 2
From: Id4 promotes cell proliferation in hepatocellular carcinoma
Expression of Id4 in HCC cell lines. a, b The mRNA and protein levels of Id4 in eight HCC cell lines. c, d Compared with the empty vector group, transfection with pMPXL-Id4 markedly up-regulates the expression of Id4 in SMMC-7721 and MHCC-97L. e, f In Huh7 and PLC/PRF/5 cells, stable transfection with shId4 markedly down-regulates the expression of Id4. ***P < 0.001