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Alvespimycin (17-DMAG) Hydrochloride HSP inhibitor

N. Cat.: S1142

Alvespimycin (17-DMAG, NSC 707545, BMS 826476, KOS 1022) HCl is a potent HSP90 inhibitor with IC50 of 62 nM in a cell-free assay.
Alvespimycin (17-DMAG) Hydrochloride HSP inhibitor Chemical Structure

Struttura chimica

Peso molecolare: 653.21

Vai a

Controllo Qualità (Quality Control)

Lotto: Purezza: 99.92%
99.92

Coltura cellulare, trattamento e concentrazione di lavoro
(Cell Culture, Treatment & Working Concentration)

Linee cellulari Tipo di saggio Concentrazione Tempo di incubazione Formulazione Descrizione dell'attività PMID
MDA-MB-231 Function assay Inhibition of Hsp90 in human MDA-MB-231 cells assessed as her2 degradation, IC50=0.0045μM. 18929486
A2058 Cytotoxicity assay Cytotoxicity against human A2058 cells by MTT assay, IC50=0.0021μM. 18929486
AGS Cytotoxicity assay Cytotoxicity against human AGS cells by MTT assay, IC50=16μM. 18359631
HeLa Cytotoxicity assay Cytotoxicity against human HeLa cells by MTT assay, IC50=2.06μM. 18359631
HeLa Function assay Inhibition of TNF-alpha-induced NF-kappaB activation in human HeLa cells, IC50=0.15μM. 18359631
AGS Function assay Inhibition of hypoxia-induced HIF1 activation in human AGS cells by reporter gene assay, IC50=0.0036μM. 18359631
NCI-H526 Function assay 1 uM 96 hrs Inhibition of HSP90-mediated proliferation of human NCI-H526 cells at 1 uM after 96 hrs by sulforhodamine B assay 17603540
NCI-H526 Function assay 1 uM 24 hrs Binding affinity to HSP90 in human NCI-H526 cells at 1 uM after 24 hrs by fluorescence polarization assay 17603540
AGS Function assay 24 hrs Viability of human AGS cells under normoxic conditions after 24 hrs by MTT assay, IC50=16μM. 17583950
Hep3B Function assay 16 hrs Inhibition of HIF1 activation in human Hep3B cells assessed as inhibition of hypoxia-induced luciferase expression after 16 hrs by reporter assay, IC50=0.061μM. 17583950
AGS Function assay 16 hrs Inhibition of HIF1 activation in human AGS cells assessed as inhibition of hypoxia-induced luciferase expression after 16 hrs by reporter assay, IC50=0.036μM. 17583950
SKOV3 Function assay Degradation of Her2 in SKOV3 cells, EC50=0.046μM. 16854066
SKOV3 Function assay Upregulation of Hsp70 in SKOV3 cells, EC50=0.014μM. 16854066
SKBR3 Function assay Degradation of Her2 in SKBR3 cells, EC50=0.008μM. 16854066
SKBR3 Function assay Upregulation of Hsp70 in SKBR3 cells, EC50=0.004μM. 16854066
SKBr3 Cytotoxicity assay Cytotoxicity against SKBr3 cells, IC50=0.024μM. 16165354
MDA-MB-231 Cytotoxicity assay Cytotoxicity against human MDA-MB-231 cells by MTT assay, IC50=0.0058μM. 18929486
A2058 Function assay Inhibition of Hsp90 in human A2058 cells, EC50=0.0079μM. 18929486
MDA-MB-231 Function assay Inhibition of Hsp90 in human MDA-MB-231 cells assessed as Akt degradation, IC50=0.0176μM. 18929486
A2058 Function assay Inhibition of Hsp90 in human A2058 cells assessed as Akt degradation, IC50=0.0243μM. 18929486
HuH7 Antiviral assay 3 days Antiviral activity against Hepatitis C virus genotype 1b Con1 infected in human HuH7 cells assessed as GAPDH RNA or 18S rRNA level after 3 days by qRT-PCR analysis, EC50=0.0012μM. 18936191
HuH7 Antiviral assay 3 days Antiviral activity against Hepatitis C virus genotype 1b Con1 infected in human HuH7 cells assessed as GAPDH RNA or 18S rRNA level after 3 days selected with 40 nM HCV-796 and 800 nM boceprevir by qRT-PCR analysis, EC50=0.0031μM. 18936191
SKBR3 Function assay Binding affinity to Hsp90 in human SKBR3 cells, IC50=0.024μM. 19017562
Hep3B Function assay 30 mins Inhibition of hypoxia-induced HIF1alpha protein accumulation in human Hep3B cells treated for 30 mins measured after 12 hrs by Western blot analysis, IC50=0.0572μM. 19072214
Hep3B Function assay 16 hrs Inhibition of hypoxia-induced VEGF protein secretion in human Hep3B cells after 16 hrs by ELISA, IC50=0.0795μM. 19072214
HCT116 Cytotoxicity assay 72 hrs Cytotoxicity against human HCT116 cells after 72 hrs, IC50=0.057μM. 19231864
SKBR3 Cytotoxicity assay 72 hrs Cytotoxicity against human SKBR3 cells after 72 hrs, IC50=0.058μM. 19231864
MCF7 Cytotoxicity assay 72 hrs Cytotoxicity against human MCF7 cells after 72 hrs, IC50=0.071μM. 19231864
SKOV3 Cytotoxicity assay 72 hrs Cytotoxicity against human SKOV3 cells after 72 hrs, IC50=0.122μM. 19231864
SKBR3 Cytotoxicity assay 72 hrs Cytotoxicity against human SKBR3 cells after 72 hrs in presence of NQO1 inhibitor dicoumarol, IC50=0.23μM. 19231864
MCF7 Cytotoxicity assay 72 hrs Cytotoxicity against human MCF7 cells after 72 hrs in presence of NQO1 inhibitor dicoumarol, IC50=0.862μM. 19231864
NCI-H596 Cytotoxicity assay 72 hrs Cytotoxicity against NQ01-deficient human NCI-H596 cells after 72 hrs, IC50=1.1μM. 19231864
MDA468 Cytotoxicity assay 72 hrs Cytotoxicity against NQ01-deficient human MDA468 cells after 72 hrs, IC50=1.6μM. 19231864
SKBR3 Cytotoxicity assay 72 hrs Cytotoxicity against human SKBR3 cells after 72 hrs by celltiter-glo assay, IC50=0.024μM. 19405528
A549 Cytotoxicity assay 72 hrs Cytotoxicity against human A549 cells after 72 hrs by celltiter-glo assay, IC50=0.068μM. 19405528
SKOV3 Cytotoxicity assay 72 hrs Cytotoxicity against human SKOV3 cells after 72 hrs by celltiter-glo assay, IC50=0.22μM. 19405528
MCF7 Cytotoxicity assay 72 hrs Cytotoxicity against human MCF7 cells after 72 hrs by celltiter-glo assay, IC50=0.23μM. 19405528
CCRF-CEM Cytotoxicity assay 72 hrs Cytotoxicity against human CCRF-CEM cells after 72 hrs by celltiter-96 aqueous one solution assay, IC50=0.54μM. 19405528
CCRF-CEM Cytotoxicity assay 72 hrs Cytotoxicity against human paclitaxel-resistant CCRF-CEM cells after 72 hrs by celltiter-96 aqueous one solution assay, IC50=2.5μM. 19405528
Hep3B Function assay 30 mins Inhibition of hypoxia-induced HIF1alpha protein accumulation in human Hep3B cells treated for 30 mins measured after 12 hrs by Western blot analysis, IC50=0.057μM. 20469887
Hep3B Function assay 16 hrs Inhibition of hypoxia-induced VEGF protein secretion in human Hep3B cells after 16 hrs by ELISA, IC50=0.079μM. 20469887
HCT116 Cytotoxicity assay Cytotoxicity against human HCT116 cells by Alamar blue assay, IC50=0.05μM. 20662534
NCI-H1299 Function assay 24 hrs Inhibition of human HSP90 in human NCI-H1299 cells assessed as Akt degradation after 24 hrs by luminex assay, IC50=0.1μM. 21438541
LN229-Lux Function assay 2.5 to 10 uM 1 hr Inhibition of luciferase activity in human LN229-Lux cells at 2.5 to 10 uM incubated for 1 hr under normoxia followed by 24 hrs under hypoxia by reporter gene assay 22746274
MCF7 Antiproliferative assay 48 hrs Antiproliferative activity against human MCF7 cells assessed as inhibition of cell viability after 48 hrs by MTT assay, IC50=0.39μM. 24582477
HCT116 Antiproliferative assay 48 hrs Antiproliferative activity against human HCT116 cells assessed as inhibition of cell viability after 48 hrs by MTT assay, IC50=0.78μM. 24582477
SKBR3 Antiproliferative assay 48 hrs Antiproliferative activity against human SKBR3 cells assessed as inhibition of cell viability after 48 hrs by MTT assay, IC50=1.34μM. 24582477
A231 Antiproliferative assay 48 hrs Antiproliferative activity against human A231 cells after 48 hrs by MTT assay, IC50=0.17μM. 24763261
MCF7 Antiproliferative assay 48 hrs Antiproliferative activity against human MCF7 cells after 48 hrs by MTT assay, IC50=0.8μM. 24763261
HCT116 Antiproliferative assay 48 hrs Antiproliferative activity against human HCT116 cells after 48 hrs by MTT assay, IC50=1.21μM. 24763261
SKBR3 Antiproliferative assay 48 hrs Antiproliferative activity against human SKBR3 cells after 48 hrs by MTT assay, IC50=3.11μM. 24763261
NCI-H1299 Function assay 12 hrs Reduction in oxygen consumption rate in human NCI-H1299 cells incubated for 12 hrs 25383915
PC9 Cytotoxicity assay 72 hrs Cytotoxicity against HGF-induced erlotinib-resistant human PC9 cells assessed as inhibition of cell growth after 72 hrs by MTT assay, IC50=0.01μM. 26844689
Ma1 Cytotoxicity assay 72 hrs Cytotoxicity against HGF-induced erlotinib-resistant human Ma1 cells assessed as inhibition of cell growth after 72 hrs by MTT assay, IC50=0.01μM. 26844689
SKBR3 Function assay Inhibition of Hsp90 in human SKBR3 cells, IC50=0.024μM. 26844689
HeLa Function assay 10 uM 6 hrs Inhibition of HSP90 in human HeLa cells assessed as induction of chk1 degradation at 10 uM after 6 hrs by Western blot method 28816449
HeLa Function assay 10 uM 6 hrs Inhibition of HSP90 in human HeLa cells assessed as induction of Akt degradation at 10 uM after 6 hrs by Western blot method 28816449
HeLa Function assay 10 uM 6 hrs Inhibition of HSP90 in human HeLa cells assessed as induction of HSP70 protein expression at 10 uM after 6 hrs by Western blot method 28816449
PC3 Function assay 10 uM 6 hrs Inhibition of HSP90 in human PC3 cells assessed as induction of chk1 degradation at 10 uM after 6 hrs by Western blot method 28816449
PC3 Function assay 10 uM 6 hrs Inhibition of HSP90 in human PC3 cells assessed as induction of Akt degradation at 10 uM after 6 hrs by Western blot method 28816449
PC3 Function assay 10 uM 6 hrs Inhibition of HSP90 in human PC3 cells assessed as induction of HSP70 protein expression at 10 uM after 6 hrs by Western blot method 28816449
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Informazioni chimiche, conservazione e stabilità (Chemical Information, Storage & Stability)

Peso molecolare 653.21 Formula

C32H48N4O8•HCl

Conservazione (Dalla data di ricezione)
N. CAS 467214-21-7 Scarica SDF Conservazione delle soluzioni stock

Sinonimi NSC 707545,BMS 826476 HCl,KOS 1022 Smiles CC1CC(C(C(C=C(C(C(C=CC=C(C(=O)NC2=CC(=O)C(=C(C1)C2=O)NCCN(C)C)C)OC)OC(=O)N)C)C)O)OC.Cl

Solubilità (Solubility)

In vitro
Lotto:

DMSO : 100 mg/mL (153.09 mM)
(Il DMSO contaminato da umidità può ridurre la solubilità. Utilizzare DMSO fresco e anidro.)

Water : Insoluble

Ethanol : Insoluble

Calcolatore di Molarità

Massa Concentrazione Volume Peso molecolare
Calcolatore di Diluizione Calcolatore del Peso Molecolare

In vivo
Lotto:

Calcolatore di formulazione in vivo (Soluzione chiara)

Passo 1: Inserire le informazioni di seguito (Consigliato: Un animale aggiuntivo per tenere conto della perdita durante l'esperimento)

mg/kg g μL

Passo 2: Inserire la formulazione in vivo (Questo è solo il calcolatore, non la formulazione. Contattateci prima se non c'è una formulazione in vivo nella sezione Solubilità.)

% DMSO % % Tween 80 % ddH2O
%DMSO %

Risultati del calcolo:

Concentrazione di lavoro: mg/ml;

Metodo per preparare il liquido master di DMSO: mg farmaco predissolto in μL DMSO ( Concentrazione del liquido master mg/mL, Vi preghiamo di contattarci prima se la concentrazione supera la solubilità del DMSO del lotto del farmaco. )

Metodo per preparare la formulazione in vivo: Prendere μL DMSO liquido master, quindi aggiungereμL PEG300, mescolare e chiarire, quindi aggiungereμL Tween 80, mescolare e chiarire, quindi aggiungere μL ddH2O, mescolare e chiarire.

Metodo per preparare la formulazione in vivo: Prendere μL DMSO liquido master, quindi aggiungere μL Olio di mais, mescolare e chiarire.

Nota: 1. Si prega di assicurarsi che il liquido sia limpido prima di aggiungere il solvente successivo.
2. Assicurarsi di aggiungere il/i solvente/i in ordine. È necessario assicurarsi che la soluzione ottenuta, nell'aggiunta precedente, sia una soluzione limpida prima di procedere all'aggiunta del solvente successivo. Metodi fisici come il vortex, gli ultrasuoni o il bagno d'acqua calda possono essere utilizzati per facilitare la dissoluzione.

Meccanismo d'azione (Mechanism of Action)

Caratteristiche
A synthetic derivative Geldanamycin, with lower hepatotoxicity than parent antibiotic & higher potency and bioavailability than the similar derivative 17-AAG.
Targets/IC50/Ki
HSP90
(Cell-free assay)
62 nM
In vitro

Il 17-DMAG mostra una potenza circa 2 volte superiore contro Hsp90 umana rispetto al 17-AAG, con IC50 di 62 nM contro 119 nM. Nelle cellule SKBR3 e SKOV3 che sovraesprimono la proteina cliente di Hsp90 Her2, il 17-DMAG provoca una down-regulation di Her2 con EC50 di 8 nM e 46 nM, rispettivamente, così come l'induzione di Hsp70 con EC50 di 4 nM e 14 nM, rispettivamente, portando a una significativa citotossicità con GI50 di 29 nM e 32 nM, rispettivamente, coerentemente con l'inibizione di Hsp90. Il 17-DMAG in combinazione con il vorinostat induce sinergicamente l'apoptosi delle cellule MCL coltivate e delle cellule MCL primarie, in modo più potente di ciascun agente da solo, attenuando marcatamente i livelli di ciclina D1 e CDK4, così come di c-Myc, c-RAF e Akt. In contrasto con il 17-AAG che è attivo solo per IKKβ nelle cellule di leucemia linfocitica cronica (CLL), il trattamento con 17-DMAG porta efficacemente all'esaurimento della proteina cliente di Hsp90, con conseguente diminuzione del legame al DNA di NF-κB p50/p65, diminuzione della trascrizione del gene bersaglio di NF-κB e apoptosi caspasi-dipendente. Bersagliando la famiglia NF-κB, il 17-DMAG media selettivamente la citotossicità dose- e tempo-dipendente contro le cellule CLL, ma non contro le cellule T normali o le cellule NK importanti per la sorveglianza immunitaria.

Saggio chinasico
Saggio di legame competitivo basato sulla polarizzazione della fluorescenza (FP)
Questo saggio utilizza un analogo della geldanamicina marcato con difluoruro di boro dipirrometene (BODIPY-AG) come sonda e misura la polarizzazione della fluorescenza dopo il legame della sonda a una proteina. La proteina Hsp90 umana nativa (isoforme α + β) è isolata da cellule HeLa. La soluzione di BODIPY-AG è preparata al momento in tampone per saggio FP (20 mM HEPES-KOH, pH 7,3, 1,0 mM EDTA, 100 mM KCl, 5,0 mM MgCl2, 0,01% NP-40, 0,1 mg/mL di γ-globulina bovina (BGG) fresca, 1,0 mM di DTT fresco e inibitore delle proteasi da soluzione madre in DMSO. Le curve di competizione sono ottenute mescolando 10 μL di ciascuna soluzione contenente BODIPY-AG e Hsp90 e una diluizione seriale di 17-DMAG preparata al momento in tampone per saggio FP da soluzione madre in DMSO. Le concentrazioni finali sono 10 nM BODIPY-AG, 40 o 60 nM Hsp90, concentrazione variabile di 17-DMAG (0,10 nM-10 μM) e ≤0,25% DMSO in una micropiastra a 384 pozzetti. Dopo 3 ore di incubazione a 30 °C, l'anisotropia della fluorescenza (γEx = 485 nm, γEm = 535 nm) viene misurata su un lettore di piastre multietichetta EnVision 2100. Il valore di IC50 di 17-DMAG è ottenuto dalle curve di competizione.
In vivo

Il trattamento con 17-DMAG a 5 mg/kg o 25 mg/kg tre volte a settimana riduce significativamente la crescita tumorale di xenotrapianti TMK-1, riducendo significativamente l'area dei vasi e il numero di cellule tumorali proliferanti nelle sezioni. Coerentemente con l'inibizione della segnalazione di FAK in vivo, il trattamento con 17-DMAG a 25 mg/kg tre volte a settimana sopprime significativamente la crescita tumorale e la metastasi degli xenotrapianti ME180 e SiHa nei topi. La somministrazione di 17-DMAG a 10 mg/kg per 16 giorni diminuisce significativamente il conteggio dei globuli bianchi e prolunga la sopravvivenza in un modello murino di trapianto TCL1-SCID.

Riferimenti
  • [4] https://pubmed.ncbi.nlm.nih.gov/19458065/
  • [5] https://pubmed.ncbi.nlm.nih.gov/20351313/

Applicazioni (Applications)

Metodi Biomarcatori Immagini PMID
Western blot HSP90 / HSP70 p-Akt / Survivin / MMP2 PARP / Cleaved caspase-3 / Cleaved caspase-8 / Cleaved caspase-9 / PUMA p-ALK / ALK / p-Akt / Akt / p-ERK / ERK α-Tax / α-IKKα / α-IKKβ/ α-NEMO / α-TBK1 / α-p65 / α-p50
S1142-WB1
28915605
Growth inhibition assay Cell proliferation
S1142-viability1
28915605

Informazioni sullo studio clinico (Clinical Trial Information)

(dati da https://clinicaltrials.gov, aggiornato il 2024-05-22)

Numero NCT Reclutamento Condizioni Sponsor/Collaboratori Data di inizio Fasi
NCT00780000 Terminated
Breast Cancer
Bristol-Myers Squibb
April 2008 Phase 2
NCT00248521 Unknown status
Unspecified Adult Solid Tumor Protocol Specific
Institute of Cancer Research United Kingdom|National Cancer Institute (NCI)
October 2005 Phase 1