YY1 and colorectal carcinoma: As shown by the immunoblot and relative densitometry analyses reported in Figure 1D, for each of the CRC cell lines, KD-01 and KD-02 cells showed significantly reduced/absent YY1 expression, compared to their unsilenced CTRL, although with a different silencing efficiency, which is cell line-dependent, being the Caco-2 cells the less efficiently silenced.