For research use only. Not for therapeutic Use.
MKC3946 is a potent IRE1α inhibitor, used for cancer research.
MKC-3946 blocks?XBP1?mRNA splicing and exhibits cytotoxicity against AML cells. MKC-3946 inhibits XBP1S expression induced by tunicamycin (TM) in NB4 cells (B) and AML sample from patients[1]. MKC-3946 prevents the splicing of the XBP1 mRNA in response to ER stress caused by mutant proinsulin production[2]. MKC-3946 is an IRE1α endoribonuclease domain inhibitor that blocks XBP1 mRNA splicing and triggers modest growth inhibition in MM cells. MKC-3946 inhibits XBP1s expression induced by Tm in a dose-dependent manner, but does not affect phosphorylation of IRE1α. MKC-3946 blocks XBP1 splicing and enhances cytotoxicity induced by bortezomib or 17-AAG. MKC-3946 (10μM) enhances ER stress-mediated apoptosis induced by bortezomib or 17-AAG, and enhances cytotoxicity of ER stressors, even in the presence of BMSCs or exogenous IL-6[3].
MKC-3946 (100 mg/kg, i.p.) inhibits XBP1 splicing in a model of ER stress in vivo, associated with significant growth inhibition of MM cells, alone or with bortezomib. MKC-3946 significantly reduces MM tumor growth in the treatment versus control group[3].
| Catalog Number | I000392 |
| CAS Number | 1093119-54-0 |
| Synonyms | 2-hydroxy-6-[5-(4-methylpiperazine-1-carbonyl)thiophen-2-yl]naphthalene-1-carbaldehyde |
| Molecular Formula | C21H20N2O3S |
| Purity | ≥95% |
| InChI | InChI=1S/C21H20N2O3S/c1-22-8-10-23(11-9-22)21(26)20-7-6-19(27-20)15-2-4-16-14(12-15)3-5-18(25)17(16)13-24/h2-7,12-13,25H,8-11H2,1H3 |
| InChIKey | IVQVBMWPWPTSNO-UHFFFAOYSA-N |
| SMILES | CN1CCN(CC1)C(=O)C2=CC=C(S2)C3=CC4=C(C=C3)C(=C(C=C4)O)C=O |
| Reference | [1]. Sun H, et al. Inhibition of IRE1α-driven pro-survival pathways is a promising therapeutic application in acute myeloid leukemia. Oncotarget. 2016 Apr 5;7(14):18736-49 [2]. Zhang L, et al. IRE1 inhibition perturbs the unfolded protein response in a pancreatic β-cell line expressing mutant proinsulin, but does not sensitize the cells to apoptosis. BMC Cell Biol. 2014 Jul 10;15:29. [3]. Mimura N, et al. Blockade of XBP1 splicing by inhibition of IRE1α is a promising therapeutic option in multiple myeloma. Blood. 2012 Jun 14;119(24):5772-81 |
