KAT2B and gastric cancer: Given that the previous studies linking PCAF depletion with poor outcomes in stomach and several other forms of cancer4–9 did not examine expression of ADA3, PACS1, or PACS2, we decided to determine whether PCAF and/or other components of the apoptotic pathway are down-regulated in primary human gastric cancer and/or in pathologies known to be precursors of malignant transformation.