| 包装 | 价格(元) |
| 10mM (in 1mL DMSO) | 电议 |
| 10mg | 电议 |
| 50mg | 电议 |
Kinase experiment: | IKK complexes are immunoprecipitated from IL-1β-treated RASF cell lysates (0.5-2 mg) using a NEMO antibody (3-10 μg) followed by the addition of protein A-agarose beads. Antibody complexes are pelleted by centrifugation and washed 3 times with 1 mL of cold whole-cell lysis buffer followed by 2 washes in kinase buffer (25 mM HEPES, pH 7.6, 2 mM MgCl2, 2 mM MnCl2, 10 mM NaF, 5 mM DTT, and 1 mM phenylmethylsulfonyl fluoride). 100-200 μg of immunoprecipitated IKK is analyzed for kinase activity in a reaction containing 10 μM biotinylated IκBα peptide as substrate and 1 μM [γ-33P]ATP (2500 Ci/mmol). After incubation at room temperature for 30 min, 25 μL of the reaction mixture is withdrawn and added to a SAM 96 biotin capture plate. After successive wash steps the plate was allowed to air-dry, and 25 μL of scintillation fluid is added to each well. Incorporation of [γ-33P]ATP is measured using a Top-Count NXT[1]. |
Cell experiment: | For crystal violet staining assay, melanoma cell lines (1×104) are seeded in 60 mm dishes, and then untreated or pretreated with SC-514 (50 μM) and/or Fotemustine. Then, cells are formalin-fixed and stained with crystal violet. Cell numbers are measured as the optical density at 595 nm (OD595) of solubilized crystal violet from formalin-fixed cells. Cytotoxicity are also determined by the MTT reduction assay[2]. |
Animal experiment: | Rats[1] SC-514 or vehicle (2% Me2SO in saline) is administered either by oral gavage (50 mg/kg) or intraperitoneally (10 and 50 mg/kg) to adult male Wistar rats that have been deprived of food overnight. Two hours after compound treatment, 1 mg/kg LPS (Escherichia coli) in saline is administered intraperitoneally 90 min after LPS administration; the animals are bled and serum TNFα levels analyzed by a rat-specific TNFα ELISA.Mice[2] Male nu/nu BALB/c mice (6 weeks old) are maintained in individual ventilated cages. A375 or G361 (5×106) cells are resuspended in 0.1 mL PBS and inoculated subcutaneously into the backs of nude mice and allowed to grow for 7 days. After that, mice are randomly assigned to 4 groups (n=6 for each group) and treated by intraperitoneal injection with 200 μL 30% PEG/5% Tween-80 solution as the vehicle control and 25 mg/kg SC-514 and/or 25 mg/kg Fotemustine daily for 13-15 consecutive days. Body weight and tumor volume are measured every 3 days. Tumor volumes are determined by a caliper and calculated. At the end of the experiment, mice are sacrificed and tumor xenografts are collected. Tumor tissues are stored at -80℃ for Western blot analysis. |
| 产品描述 | SC-514 is a cell-permeable and selective inhibitor of IKK-2 with IC50 value of 3-12μM [1, 2]. SC-514 inhibits all forms of recombinant human IKK-2 with IC50 values in the 3–12μM range. It also inhibits the native IKK complex. SC-514 specifically binds at the ATP-binding site of IKK-2 and exerts a reversible and competitive inhibition with ATP. However, SC-514 shows non-competitive inhibition with the IκB site. As an inhibitor of IKK-2, SC-514 is found to block the phosphorylation and degradation of IκBα and reduce the translocation level of p65 into the nucleus in IL-1β-treated RASFs. Additionally, SC-514 shows dose-dependent inhibition in the transcription of NF-κB-induced genes, including IL-6, IL-8, and COX-2. Moreover, SC-514 shows efficacious in reduction of LPS-induced TNFα production in the acute model of inflammation. SC-514 is also reported to inhibit the osteoclastogenesis in BMM cells through attenuating RANKL-induced activation of NF-κB [1, 2]. References: |
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