貨號	規格	價格	上海	北京	武漢	南京
S81949-5mg	99.9%	￥952.00 S81949-5mg ￥952.00 現貨	6 6	-	-	-
S81949-10mg	99.9%	￥1496.00 S81949-10mg ￥1496.00 現貨	7 7	-	-	-
S81949-25mg	99.9%	￥2992.00 S81949-25mg ￥2992.00 現貨	5 5	-	-	-
S81949-100mg	≥99%	￥8160.00 S81949-100mg ￥8160.00 2-3天	0 貨期：2-3天	-	-	-

產品介紹

MKC3946 is an effective and soluble IRE1α inhibitor which triggered modest growth inhibition in multiple myeloma cell lines

產品描述：

MKC3946 is an effective and soluble IRE1α inhibitor which triggered modest growth inhibition in multiple myeloma cell lines

靶點：

IRE1

體外研究：

MKC-3946 blocks XBP1 mRNA splicing and exhibit cytotoxicity against AML cells. MKC-3946 inhibits XBP1S expression induced by tunicamycin (TM) in NB4 cells (B) and AML samples from patients. MKC-3946 prevents the splicing of the XBP1 mRNA in response to ER stress caused by mutant proinsulin production. 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.

體內研究：

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 the control group. Inhibition of XBP1 splicing by MKC-3946 is associated with decreased MM growth in vivo, alone or in combination with bortezomib.

細胞實驗：

For each assay, the various numbers of cells (1,000 for cell proliferation and 10,000 for cell viability assays) are seeded in 96-well plates, followed by either vehicle (DMSO) or increasing concentrations of the drug. For detection of relative numbers of living cells, 10 μL of MTT (5 mg/mL) is added to each well, placed in an incubator for four hours, followed by centrifugation (1,000 rpm, 5 min); 100 μL of supernatant media from each well are carefully removed and 100 μL of SDS buffer (20% in water) is added to dissolve the crystals. Results are further read on the spectrophotometer machine at 570 nM wavelength. Half maximal inhibitory concentration (IC50) is calculated using the GraphPad Prism 5. A synergy of combination of two drugs is determined using the CalcuSyn software. The extent of drug interaction between the two drugs is determined using the combination index (CI) for mutually exclusive drugs. Different CI values are obtained when solving the equation for different concentrations of drugs. A CI o

動物實驗：

CB17 SCID mice (48-54 days old) are injected subcutaneously with 1×10^7 RPMI 8226 cells mixed with Matrigel on day 0, and receive treatment for 21 days starting on day1. Mice are assigned into 4 groups (n=8): daily intraperitoneal injections of 100 mg/kg MKC-3946; intravenous injections of 0.15 mg/kg bortezomib twice a week; a combination of MKC-3946 intraperitoneally with bortezomib intravenously; and 10% HPBCD intraperitoneally with normal saline intravenously as vehicle control. Tumor volume is calculated from caliper measurements every 3 to 4 days; mice are killed when tumors reached 1.5 cm in length. Survival is evaluated from the first day of treatment until death.

參考文獻：

1. 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. 2. 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. 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.

溶解性：

Soluble in DMSO

保存條件：

-20℃

配置溶液濃度參考：

	1mg	5mg	10mg
1 mM	2.628 ml	13.142 ml	26.284 ml
5 mM	0.526 ml	2.628 ml	5.257 ml
10 mM	0.263 ml	1.314 ml	2.628 ml
50 mM	0.053 ml	0.263 ml	0.526 ml

注意：

部分產品我司僅能提供部分信息，我司不保證所提供信息的權威性，僅供客戶參考交流研究之用。

參考文獻

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