HDAC-IN-33 is a highly potent HDACinhibitor, effectively inhibiting HDAC1, HDAC2, and HDAC6 with IC50 values of 24, 46, and 47 nM, respectively. This compound demonstrates significant antiproliferation activity against tumor cells and exhibits remarkable in vivo antitumor efficacy. Additionally, HDAC-IN-33 initiates the activation of antitumor immunity [1].
HDAC-IN-32 is a highly effective HDACinhibitor presenting IC50 values of 5.2, 11, and 28 nM for HDAC1, HDAC2, and HDAC6, respectively. This compound demonstrates notable anti-proliferative properties against tumor cells, as well as significant in vivo antitumor efficacy, which can elicit antitumor immunity [1].
CAY10722 is an inhibitor of sirtuin 3 (SIRT3), a class III HDAC (71% inhibition at 200 μM). SIRT3 is involved in modulating metabolic homeostasis as a NAD+-dependent protein deacetylase in the mitochondria. SIRT3 functions as either an oncogene or tumor suppressor, depending on cancer cell type. High SIRT3 expression in patient-derived esophageal cancer tissues is associated with shorter survival and, in mice, downregulation leads to a lower tumor load. In contrast, low SIRT3 expression in patient-derived breast cancer cells is correlated with shorter survival.