KU-0063794

製品コードS1226 バッチS122604

化学情報

	Synonyms	N/A	Storage (From the date of receipt)	3 years -20°C powder 1 years -80°C in solvent
	化学式	C₂₅H₃₁N₅O₄
	分子量	465.54	CAS No.	938440-64-3
Solubility (25°C)*	体外	DMSO	16 mg/mL (34.36 mM)
		Water	Insoluble
		Ethanol	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.

溶剤液（一定の濃度）を調合する

生物活性

製品説明	KU-0063794 is a potent and highly specific dual-mTOR inhibitor of mTORC1 and mTORC2 with IC50 of ~10 nM in cell-free assays; no effect on PI3Ks.
in vitro	Compared with the mTOR inhibitor PP242, KU-0063794 exhibits higher specificity for mTOR, as being inactive against PI3Ks or 76 other kinases. In HEK-293 cells, KU-0063794 at 30 nM is sufficient to rapidly ablate S6K1 activity by blocking the phosphorylation of the hydrophobic motif (Thr³⁸⁹) and subsequently the phosphorylation of the T-loop residue (Thr²²⁹). In case of IGF1 stimulation of serum-starved HEK-293 cells, 300 nM of KU-0063794 is needed to inhibit the S6K1 activity by ~90%. KU-0063794 at 100-300 nM also completely inhibits the amino-acid-induced phosphorylation of S6K1 and S6 protein. Similar to S6K1, KU-0063794 inhibits the phosphorylation of mTORC1 at Ser²⁴⁴⁸ and mTORC2 at Ser²⁴⁸¹ in a dose-dependent and time-dependent manner. In the presence of serum or following IGF1 stimulation, KU-0063794 induces a dose-dependent inhibition of the activity and phosphorylation of Akt at Ser⁴⁷³ and unexpected Thr³⁰⁸ as well as the phosphorylation of the Akt substrates PRAS40 at Thr²⁴⁶, GSK3α/GSK3β at Ser²¹/Ser⁹ and Foxo-1/3a at Thr²⁴/Thr³². KU-0063794 but not rapamycin inhibits SGK1 activity and Ser⁴²² phosphorylation as well as its physiological substrate NDGR1 in a dose-dependent manner, to the same extent as S6K1 and Akt phosphorylation, whereas KU-0063794 dose not inhibit phorbol ester induced ERK or RSK phosphorylation and RSK activation. Compared with rapamycin, KU-0063794 exhibits more significant potency to induce the complete dephosphorylation of 4E-BP1 at Thr³⁷, Thr⁴⁶ and Ser⁶⁵. KU-0063794 inhibits cell growth of both wild-type and mLST8-deficient MEFs and induces a G1 cell cycle arrest, more significantly than rapamycin. ^[1]
in vivo	Ku0063794 inhibits tumor growth and mTOR signaling in a preclinical renal cell carcinoma model. However, Ku0063794 was not more effective than temsirolimus in the animal study. A possible explanation for lack of greater activity in vivo for Ku0063794 is that temsirolimus has important effects on the tumor microenvironment. Temsirolimus decreased angiogenesis in the xenograft tumors while Ku0063794 did not. Temsirolimus treated tumors expressed less VEGF and PDGF than Ku0063794 treated tumors, thus stimulating less angiogenesis^[2].

プロトコル(参考用のみ)

キナーゼアッセイ	mTOR complexes kinase assays
キナーゼアッセイ	HEK-293 cells are freshly lysed in Hepes lysis buffer. Lysate (1-4 mg) is pre-cleared by incubating with 5-20 μL of Protein G-Sepharose conjugated to pre-immune IgG. The lysate extracts are then incubated with 5-20 μL of Protein G-Sepharose conjugated to 5-20 μg of either anti-Rictor or anti-Raptor antibody, or pre-immune IgG. All antibodies are covalently conjugated to Protein G-Sepharose. Immunoprecipitations are carried out for 1 hour at 4 °C on a vibrating platform. The immunoprecipitates are washed four times with Hepes lysis buffer, followed by two washes with Hepes kinase buffer. For Raptor immunoprecipitates used for phosphorylating S6K1, for the initial two wash steps the buffer includes 0.5 M NaCl to ensure optimal kinase activity. GST-Akt1 is isolated from serum-deprived HEK-293 cells incubated with PI-103 (1 μM for 1 hour). GST-S6K1 is purified from serum-deprived HEK-293 cells incubated with rapamycin (0.1 μM for 1 hour). mTOR reactions are initiated by adding 0.1 mM ATP and 10 mM MgCl₂ in the presence of various concentrations of KU-0063794 and GST-Akt1 (0.5 μg) or GST-S6K1 (0.5 μg). Reaction are carried out for 30 minutes at 30 °C on a vibrating platform and stopped by addition of SDS sample buffer. Reaction mixtures are then filtered through a 0.22-μm-poresize Spin-X filter and samples are subjected to electrophoresis and immunoblot analysis with the indicated antibodies.
細胞アッセイ	細胞株	Wild-type and mLST8 deficient MEFs
	濃度	Dissolved in DMSO, final concentration ~3 μM
	反応時間	24, 48, and 72 hours
	実験の流れ	Cells are treated with KU-0063794 for 24, 48, and 72 hours, and the medium is changed every 24 hours with freshly dissolved KU-0063794. For the measurement of cell growth, cells are washed once with PBS, and fixed in 4% (v/v) paraformaldehyde in PBS for 15 minutes. After washing once with water, the cells are stained with 0.1% Crystal Violet in 10% ethanol for 20 minutes and washed three times with water. Crystal Violet is extracted from cells with 0.5 mL of 10% (v/v) ethanoic (acetic) acid for 20 minutes. The eluate is then diluted 1:10 in water and absorbance at 590 nm is quantified. For the assessment of cell cycle distribution, cells are harvested by trypsinization, washed once in PBS, and re-suspended in ice-cold aq. 70% (v/v) ethanol. Cells are washed twice in PBS plus 1% (w/v) BSA and stained for 20 minutes in PBS plus 0.1% (v/v) Triton X-100 containing 50 g/mL propidium iodide and 50 g/mL RNase A. The DNA content of cells is determined using a FACSCalibur flow cytometer and CellQuest software. Red fluorescence (585 nm) is acquired on a linear scale, and pulse width analysis is used to exclude doublets. Cell-cycle distribution is determined using FlowJo software.
動物実験	動物モデル	Nu/Nu nude mice
	投薬量	8 mg/kg
	投与方法	i.p.

参考

カスタマーフィードバック

: Data from [Data independently produced by Oncogene, 2013, 10.1038/onc.2013.509]

: Data from [J Biol Chem, 2011, 286, 39450-6]

: Data from [Circ Res, 2010, 107, 1265-1274]

Selleckの高級品が、幾つかの出版された研究調査結果（以下を含む）で使われた：

Resistin secreted by porcine alveolar macrophages leads to endothelial cell dysfunction during Haemophilus parasuis infection [ Virulence, 2023, 14(1):2171636]	PubMed: 36694280
Mechanosensitive mTORC2 independently coordinates leading and trailing edge polarity programs during neutrophil migration [ Mol Biol Cell, 2023, 34(5):ar35]	PubMed: 36857159
Combined Mcl-1 and YAP1/TAZ inhibition for treatment of metastatic uveal melanoma [ Melanoma Res, 2023, 10.1097/CMR.0000000000000911]	PubMed: 37467061
Aggresome assembly at the centrosome is driven by CP110-CEP97-CEP290 and centriolar satellites [ Nat Cell Biol, 2022, 24(4):483-496]	PubMed: 35411088
Inhibition of the Protein Arginine Methyltransferase PRMT5 in High-Risk Multiple Myeloma as a Novel Treatment Approach [ Front Cell Dev Biol, 2022, 10:879057]	PubMed: 35757005
Novel Treatments of Uveal Melanoma Identified with a Synthetic Lethal CRISPR/Cas9 Screen [ Cancers (Basel), 2022, 14(13)3186]	PubMed: 35804957
Jagged-1 is induced by mTOR inhibitors in renal cancer cells through an Akt/ALK5/Smad4-dependent mechanism [ Curr Res Pharmacol Drug Discov, 2022, 3:100117]	PubMed: 35992379
TRK-Fused Gene (TFG), a protein involved in protein secretion pathways, is an essential component of the antiviral innate immune response [ PLoS Pathog, 2021, 17(1):e1009111]	PubMed: 33411856
Effect of cell microenvironment on the drug sensitivity of hepatocellular cancer cells [ Oncotarget, 2021, 12(7):674-685]	PubMed: 33868588
TOR Inhibitors Synergistically Suppress the Growth and Development of Phytophthora infestans, a Highly Destructive Pathogenic Oomycete [ Front Microbiol, 2021, 12:596874]	PubMed: 33935983

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