It has been reported that the HDAC3 function change is related to the occurrence of many cancers, including liver cancer [13], prostate cancer [14], rectal cancer [15], etc. At the same time, a study has pointed out that the recruitment of HDAC3 is linked with the maintenance of Burkitt lymphoma cell function [2], from which one can know that HDAC3 is related to the biological functions of tumor cells. The gene discussed is HDAC3; the disease is rectal cancer.