APC and hepatocellular carcinoma: Consistent with the results from the real-time PCR array, the expression levels of ATAD2 and APC mRNA were negatively correlated (R2 = 0.429, P < 0.01), and ATAD2 expression was positively correlated with CTNNA1 in HCC tissues (R2 = 0.327, P = 0.01).