受注:045-509-1970 |
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Synonyms | SphK-I2 | Storage (From the date of receipt) |
3 years -20°C powder 1 years -80°C in solvent |
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化学式 | C15H11ClN2OS |
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分子量 | 302.78 | CAS No. | 312636-16-1 | |
Solubility (25°C)* | 体外 | DMSO | 61 mg/mL (201.46 mM) | |
Ethanol | 61 mg/mL (201.46 mM) | |||
Water | Insoluble | |||
* <1 mg/ml means slightly soluble or insoluble. * Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations. |
製品説明 | SKI II (SphK-I2) is a highly selective and non ATP-competitive sphingosine kinase (SphK) inhibitor with IC50 of 0.5 μM, while exhibiting no inhibitory action on other kinases including PI3K, PKCα and ERK2. |
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in vitro | SKI II potently inhibits endogenous SK activities in the breast cancer cell line MDA-MB-231. SKI II demonstrates significantly antiproliferative effects in human cancer cell lines including T-24, MCF-7, MCF-7/VP, NCI/ADR with IC50 of 4.6 μM , 1.2 μM, 0.9 μM and 1.3 μM, respectively. SKI II also induces apoptosis of T24 cells consistent with the hypothesized consequence of reducing S1P levels. [1] As demonstrated previously in MDA-MB-231 cells, SKI II decreases S1P formation in JC cells in a concentration-dependent manner, with IC50 of 12 μM. [2] In addition, SKI-II can reverse drug resistance of SGC7901/DDP to cisplatin by down-regulating expression of P-gp and up-regulating apoptosis through down-regulation of SphK1. [3] |
in vivo | SKI II (50 mg/kg) after intraperitoneal or oral administration significantly decreases tumor growth a syngeneic Balb/c mouse solid tumor model that uses JC mammary adenocarcinoma cells relative to control groups with no overt toxicity or weight loss.[2] SKI-II (50 mg/kg ip) ameliorates antigen-induced bronchial smooth muscle hyperresponsiveness in mice by endogenously inhibiting generation of S1P. [4] |
キナーゼアッセイ | SK Assay | |
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A medium-throughput assay suitable for screening for inhibitors of recombinant human SK has been established. Briefly, 5 μg of purified GST-SK fusion protein are combined with 12 nM sphingosine, which contains a 100-fold dilution of [3-3H]sphingosine (20 Ci/mmol), 1 mM ATP, 1 mM magnesium chloride, and 200 μL of assay buffer [20 mM Tris HCl (pH 7.4), 20% glycerol, 1 mM beta-mercaptoethanol, 1 mM EDTA, 20 mM zinc chloride, 1 mM sodium orthovanadate, 15 mM sodium fluoride, and 0.5 mM 4-deoxypyridoxine]. Assays are run for 30 min at 25°C with shaking and contains either 1% DMSO or 5 g/mL test compound, which corresponds to concentrations of 10–25 μM. The reactions are terminated with 50 μL of concentrated ammonium hydroxide, followed by extraction of the assay mixture with chloroform:methanol (2:1). The aqueous portion is transferred to scintillation vials and radioactivity is quantified as a measure of [3H]]S1P formation using a Beckman LS 3801 Scintillation Counter. The intra-assay coefficient of variation is ~10%, whereas interassay variation is ~20%. | ||
細胞アッセイ | 細胞株 | T-24, MCF-7, MCF-7/VP, NCI/ADR cell lines |
濃度 | ~50 μM | |
反応時間 | 48 hours | |
実験の流れ | T24, MCF-7, MCF-7/VP, and NCI/ADR cells are plated into 96-well tissue culture plates at ~15% confluency. After 24 hours, cells are treated with various concentrations of inhibitors. After an additional 48 hours, cell survival is assayed using the sulforhodamine B assay. | |
動物実験 | 動物モデル | JC xenografts are established in mice |
投薬量 | ~100 mg/kg | |
投与方法 | Intraperitoneal administration or oral administration |
Data from [Data independently produced by , , Cancer Cell Int, 2018, 18:202]
Data from [Data independently produced by , , Breast Cancer Res Treat, 2018, 172(1):33-43]
Data from [Data independently produced by , , Neurochemistry International, 2016, 94: 90-97.]
The central role of Sphingosine kinase 1 in the development of neuroendocrine prostate cancer (NEPC): A new targeted therapy of NEPC [ Clin Transl Med, 2022, 12(2):e695] | PubMed: 35184376 |
The sphingosine kinase inhibitor SKI-V suppresses cervical cancer cell growth [ Int J Biol Sci, 2022, 18(7):2994-3005] | PubMed: 35541904 |
The anti-osteosarcoma cell activity by the sphingosine kinase 1 inhibitor SKI-V [ Cell Death Discov, 2022, 8(1):48] | PubMed: 35115496 |
Proteomic-Based Approach Reveals the Involvement of Apolipoprotein A-I in Related Phenotypes of Autism Spectrum Disorder in the BTBR Mouse Model [ Int J Mol Sci, 2022, 23(23)15290] | PubMed: 36499620 |
MAPK activity dynamics regulate non-cell autonomous effects of oncogene expression [ Elife, 2020, 9e60541] | PubMed: 32940599 |
Follicle-stimulating hormone promotes the proliferation of epithelial ovarian cancer cells by activating sphingosine kinase [ Sci Rep, 2020, 10(1):13834] | PubMed: 32796926 |
The Intra-nuclear SphK2-S1P Axis Facilitates M1-to-M2 Shift of Microglia via Suppressing HDAC1-Mediated KLF4 Deacetylation. [ Front Immunol, 2019, 10:1241] | PubMed: 31214192 |
Acid ceramidase promotes drug resistance in acute myeloid leukemia through NF-κB-dependent P-glycoprotein upregulation. [ J Lipid Res, 2019, 60(6):1078-1086] | PubMed: 30962310 |
TRIM14 promotes colorectal cancer cell migration and invasion through the SPHK1/STAT3 pathway [Jin Z Cancer Cell Int, 2018, 18:202] | PubMed: 30555277 |
Influence of sphingosine-1-phosphate signaling on HCMV replication in human embryonal lung fibroblasts [Zilch A Med Microbiol Immunol, 2018, 207(3-4):227-242] | PubMed: 29700602 |
長期の保管のために-20°Cの下で製品を保ってください。
人間や獣医の診断であるか治療的な使用のためにでない。
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