KAT2B and hepatocellular carcinoma: In our previous study, we detected the expression of PCAF protein in 35 HCC patients from a medical center in China by IHC staining and found that PCAF expression in HCC tissues was significantly associated with better long-term survival after surgery.29 We examined PCAF mRNA expression in 139 HCCs from Mayo Clinic, the Cancer Institute of the Chinese Academy of Medical Sciences, the University of Leuven and the US National Cancer Institute.