For research use only. Not for therapeutic Use.
WM-1119 is a highly potent and selective KAT6A inhibitor, with an IC50 of 0.25 μM for KAT6A in lymphoma cells, the binding KD values of WM-1119 with KAT6A, KAT5 and KAT7 are 2 nM, 2.2 μM, 0.5 μM , respectively[1].
WM-1119 induces cell cycle exit and cellular senescence without causing DNA damage. WM-1119 is 1,100-fold and 250-fold more active against KAT6A than against KAT5 or KAT7, respectively, and so shows greater specificity for KAT6A than does WM-8014. Treatment of MEFs with WM-1119 results in cell cycle arrest in G1 and a senescence phenotype similar to that seen upon treatment with WM-8014. Notably, the activity of WM-1119 in this cell-based assay is an order of magnitude greater than WM-8014 and WM-1119 is able to induce cell cycle arrest at 1 μM. Treatment with WM-1119 inhibits the proliferation of the EMRK1184 lymphoma cells in vitro, WM-1119 (IC50=0.25 μM) is ninefold more active than WM-8014 (IC50=2.3 μM), as expected on the basis of reduced protein binding[1].
By day 14, the cohorts that are treated four times per day with WM-1119 have arrested tumour growth, with the exception of one mouse that does not respond. Spleen weights in the WM-1119-treatment group (treated four times per day) are substantially lower than spleen weights in the vehicle-treated group. Treatment with WM-1119 three times per day leads to a significant reduction in tumour burden and spleen weight, but is not as effective as treatment four times per day. WM-1119 is well-tolerated; mice show no generalized ill effects and weight loss is not observed. The proportion and overall number of tumour cells is substantially reduced by WM-1119 treatment (four times per day)[1].
Catalog Number | I019962 |
CAS Number | 2055397-28-7 |
Synonyms | 3-fluoro-N’-(2-fluorophenyl)sulfonyl-5-pyridin-2-ylbenzohydrazide |
Molecular Formula | C18H13F2N3O3S |
Purity | ≥95% |
InChI | InChI=1S/C18H13F2N3O3S/c19-14-10-12(16-6-3-4-8-21-16)9-13(11-14)18(24)22-23-27(25,26)17-7-2-1-5-15(17)20/h1-11,23H,(H,22,24) |
InChIKey | QLXULUNLCRKWRD-UHFFFAOYSA-N |
SMILES | C1=CC=C(C(=C1)F)S(=O)(=O)NNC(=O)C2=CC(=CC(=C2)C3=CC=CC=N3)F |
Reference | [1]. Baell JB et al. Inhibitors of histone acetyltransferases KAT6A/B induce senescence and arrest tumour growth. Nature. 2018 Aug;560(7717):253-257. |