Geldanamycin

製品コードS2713 バッチS271303

印刷

化学情報

Chemical Structure Synonyms NSC 122750 Storage
(From the date of receipt)		 3 years -20°C powder
1 years -80°C in solvent
化学式

C29H40N2O9
分子量 560.64 CAS No. 30562-34-6
Solubility (25°C)* 体外 DMSO (warmed with 50ºC water bath) 50 mg/mL (89.18 mM)
Water Insoluble
Ethanol Insoluble
体内 （毎回新しく調製した物を用意してください）
Clear solution
5%DMSO 40%PEG300 5%Tween80 50%ddH2O
1.65mg/ml Taking the 1 mL working solution as an example, add 50 μL of 33 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results. 
Clear solution
5% DMSO 95% Corn oil
0.41mg/ml Taking the 1 mL working solution as an example, add 50 μL of 8.2 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results. 
* <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 Geldanamycin is a natural existing HSP90 inhibitor with Kd of 1.2 μM, specifically disrupts glucocorticoid receptor (GR)/HSP association. Geldanamycin attenuates virus infection-induced ALI (acute lung injury)/ARDS (acute respiratory distress syndrome) by reducing the host's inflammatory responses.
in vitro Geldanamycin binds in the ATP-binding site in the N-terminus domain of Hsp90s (residues 1-220). Geldanamycin inhibits the ATPase activity of Hsp90 in a dose-dependent manner. [1] Geldanamycin causes a dose-dependent G2 arrest and reversible inhibiton o f entry into the S phase in A2780 human ovarian cell line. This inhibition is accompanied by p53 increase and finally demonstrated to be p53 dependent. [2] Geldanamycin causes polyubiquitination and proteasomal degradation of the p185 receptor protein-tyrosin kinase and shows a IC50 with 70 nM. [3, 4] Geldanamycin is a typical anti-tumor reagent, shows a mean GI50 with 0.18 μM against the panel of 60 human tumor cell lines. [5]
in vivo Geldanamycin (50 mg//kg) shows 30% inhibition on pl85-associated phosphotyrosine levels in FRE/erbB-2 mice. [6]

プロトコル(参考用のみ)

キナーゼアッセイ Isothermal Titration Calorimetry (ITC) of Nucelotide Binding
The titration experiments are performed using the MSC system. In each experiment, 16 aliquots of 15 μL of geldanamycin (300 μM in 1% DMSO) are injected into 1.3 mL of protein (31 μM in 20 mMTris-HCl, pH 7.5, 1 mMEDTA) at 25 °C, and the resulting data are fit after subtracting the heats of dilution. Heats of dilution are determined in separate experiments from addition of geldanamycin into buffer and buffer into protein. No evidence for binding of DMSO in the nucleotide binding site is observed. Titration data are fit using a nonlinear least-squares curve-fitting algorithm with three floating variables: stoichiometry, binding constant (Kb) 1/Kd), and change of enthalpy of interaction (ΔH°). Dissociation constants estimated for geldanamycin binding to intact yeast Hsp90 is 1.22 μM, and for binding to Hsp90 N-terminal domain is 0.78 μM. No meaningful heat is observed with binding to the C-terminal fragment.
細胞アッセイ 細胞株 A2780 human ovarian cell line
濃度 0.001-10 μM
反応時間 3 hours
実験の流れ

Exponentially growing cells are treated with Geldanamycin and at various times DNA synthesis is assessed by incorporation of bromodeoxyuridine (BrdUrd) and flow cytometric analysis. No marked difference in total cell number is noted during this time course for treated and untreated cultures. BrdUrd (10 μM) is incorporated over a 4-h incubation period at 37 °C and cells are harvested and fixed in 70% ethanol. After denaturation of the DNA with 2 N HC1, cells are incubated with an anti-BrdUrd mouse monoclonal antibody followed by a fluorescein isothiocyanate (FITC)-linked goat anti-mouse IgG. Cells are stained for 30 minutes at room temperature with propidium iodide and analysed by flow cytometry using a Coulter EPICS Profile Analyzer.
動物実験 動物モデル FRE/erbB-2 tumors in nu/nu mice
投薬量 50 mg/kg
投与方法 Administered via i.p.

カスタマーフィードバック

Data from [Data independently produced by , , Antimicrob Agents Chemother, 2015, 10.1128/AAC.00946-15]

Data from [Data independently produced by , , PLoS One, 2015, 10(9):e0138936.]

Data from [Data independently produced by , , Radiat Res, 2018, 189(5):519-528]

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：

Inhibition of HSP90 in Driver Oncogene-Defined Lung Adenocarcinoma Cell Lines: Key Proteins Underpinning Therapeutic Efficacy [ Int J Mol Sci, 2023, 24(18)13830] PubMed: 37762133
Development of a First-in-Class Small-Molecule Inhibitor of the C-Terminal Hsp90 Dimerization [ ACS Cent Sci, 2022, 8(5):636-655] PubMed: 35647282
Local Elimination of Senescent Cells Promotes Bone Defect Repair during Aging [ ACS Appl Mater Interfaces, 2022, 10.1021/acsami.1c22138] PubMed: 35014784
Proteome-Wide Deconvolution of Drug Targets and Binding Sites by Lysine Reactivity Profiling [ Anal Chem, 2022, 10.1021/acs.analchem.1c05455] PubMed: 35147412
Hsp90 Regulates GCRV-II Proliferation by Interacting with VP35 as Its Receptor and Chaperone [ J Virol, 2022, 96(19):e0117522] PubMed: 36102647
Hsp90 Regulates GCRV-II Proliferation by Interacting with VP35 as Its Receptor and Chaperone [ Journal of Virology, 2022, Vol. 96, No. 19] PubMed: None
Evolution of kinase polypharmacology across HSP90 drug discovery [ Cell Chem Biol, 2021, S2451-9456(21)00221-X] PubMed: 34077750
Antibody-drug conjugate and free geldanamycin combination therapy enhances anti-cancer efficacy [ Int J Pharm, 2021, 610:121272] PubMed: 34763035
Hsp90 is required for snakehead vesiculovirus replication via stabilizing the viral L protein [ J Virol, 2021, JVI0059421] PubMed: 34037421
Solvent-Induced Protein Precipitation for Drug Target Discovery on the Proteomic Scale [ Anal Chem, 2020, 92(1):1363-1371] PubMed: 31794197

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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