Elesclomol (STA-4783)
Catalog No.S1052
Molecular Weight(MW): 400.5
Elesclomol (STA-4783) is a novel potent oxidative stress inducer that elicits pro-apoptosis events among tumor cells. Phase 3.
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4 Customer Reviews
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Treatment with elesclomol inhibits cancer cell growth and induces apoptosis by increasing ROS levels. a. Cell growth of SMOV2, IGROV1, and OVCA432 ovarian cancer cells treated with elesclomol in the presence or absence of the antioxidant NAC for 72 h. Cell growth was measured using the WST-1 assay and quantified relative to DMSO treated controls.
Oncotarget, 2016, 7(35):56933-56943. Elesclomol (STA-4783) purchased from Selleck.
BMC Genomics 2014 15(1), 263. Elesclomol (STA-4783) purchased from Selleck.
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Overexpression of GILZ favors oxidative cell death Dose-response of ROS production (HE staining) (A) or cell death (PI staining) (B) in indicated cells exposed toincreasing concentrations of elesclomol for 24 h (mean ± SD, n = 3, *p < 0.05). Alternatively, cells were treated with elesclomol for 24 h with or without pre-incubation with10 mM N-Acetyl Cysteine (NAC) for 12 h before HE staining (A) or PI staining (B) (mean ± SD, n = 3, *p < 0.05).
Int J Biochem Cell Biol, 2017, 85:166-174. Elesclomol (STA-4783) purchased from Selleck.
The proliferation of PC3 and LNCaP cells exposed to elesclomol at a range of concentrations for 48 h was assessed using MTT assay. Results are expressed as percentage of MTT absorbance of untreated cells at 0 h. p < .05 and p < .01 compared to untreated controls. Data are means ± SEM; n = 4.
Int J Radiat Biol, 2017, 93(2):194-203. Elesclomol (STA-4783) purchased from Selleck.
Purity & Quality Control
Choose Selective HSP (e.g. HSP90) Inhibitors
Biological Activity
| Description | Elesclomol (STA-4783) is a novel potent oxidative stress inducer that elicits pro-apoptosis events among tumor cells. Phase 3. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| In vitro |
Elesclomol significantly induces the expression of heat shock stress response genes and metallothionein genes, a signature transcription profile indicative of oxidative stress in Hs294T cells. Elesclomol (100 nM) rapidly induces Hsp70 RNA levels with a 4.8-fold increase at 1 hour and a 160-fold increase at 6 hours in Ramos Burkitt's lymphoma B cells in consistent with the intracellular ROS content which increases by 20% as early as 0.5 hour and 385% at 6 hours, and the induction of Hsp70 can be blocked by antioxidants N-acetylcysteine (NAC) and Tiron pretreatment. Elesclomol increases the number of early and late apoptotic cells with 3.7- and 11-fold through the induction of oxidative stress, which can be completely blocked by NAC, while having little effect on normal cells. [1] Elesclomol significantly inhibits the cell viability of SK-MEL-5, MCF-7, and HL-60 with IC50 of 110 nM, 24 nM and 9 nM, respectively. [2] Elesclomol induces copper-dependent ROS generation and cytoxicity in yeast. Instead of working through a specific cellular protein target, Elesclomol interacts with the electron transport chain (ETC), a biologically coherent set of processes occurring in the mitochondrion, to generate high levels of ROS within the organelle and consequently cell death. [3] |
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| Cell Data |
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| In vivo | Although Elesclomol (25-100 mg/kg) as a single agent shows no antitumor activity in nude mouse xenograft models of human breast cancers (MDA435, MCF7 and ZR-75-1), lung cancer (RER) or lymphoma (U937), Elesclomol substantially enhances the efficacy of chemotherapeutic agents such as paclitaxel in these models, both in terms of tumor regression and extended survival of mice. [4] |
Protocol
| Cell Research:[1] |
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| Animal Research:[4] |
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Solubility (25°C)
| In vitro | DMSO | 80 mg/mL (199.75 mM) |
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| Water | Insoluble | |
| Ethanol | Insoluble | |
| In vivo | Add solvents to the product individually and in order(Data is from Selleck tests instead of citations): 1% DMSO+30% polyethylene glycol+1% Tween 80 For best results, use promptly after mixing. |
30 mg/mL |
* 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.
Chemical Information
| Molecular Weight | 400.5 |
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| Formula | C19H20N4O2S2 |
| CAS No. | 488832-69-5 |
| Storage | powder |
| in solvent | |
| Synonyms | N/A |
Bio Calculators
Molarity Calculator
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Clinical Trial Information
| NCT Number | Recruitment | Conditions | Sponsor/Collaborators | Start Date | Phases |
|---|---|---|---|---|---|
| NCT01280786 | Unknown status | Acute Myeloid Leukemia | Synta Pharmaceuticals Corp. | January 2011 | Phase 1 |
| NCT00888615 | Active not recruiting | Fallopian Tube Clear Cell Adenocarcinoma|Fallopian Tube Endometrioid Adenocarcinoma|Fallopian Tube Mucinous Adenocarcinoma|Fallopian Tube Serous Adenocarcinoma|Fallopian Tube Transitional Cell Carcinoma|Ovarian Brenner Tumor|Ovarian Clear Cell Adenocarcinoma|Ovarian Endometrioid Adenocarcinoma|Ovarian Mucinous Adenocarcinoma|Ovarian Seromucinous Carcinoma|Ovarian Serous Adenocarcinoma|Ovarian Transitional Cell Tumor|Primary Peritoneal Serous Adenocarcinoma|Recurrent Fallopian Tube Carcinoma|Recurrent Ovarian Carcinoma|Recurrent Primary Peritoneal Carcinoma|Undifferentiated Fallopian Tube Carcinoma|Undifferentiated Ovarian Carcinoma | Gynecologic Oncology Group|National Cancer Institute (NCI) | December 2010 | Phase 2 |
| NCT00827203 | Suspended | Metastatic Solid Tumors | Synta Pharmaceuticals Corp. | January 2009 | Phase 1 |
| NCT00808418 | Completed | Prostate Cancer | Synta Pharmaceuticals Corp. | November 2008 | Phase 1 |
| NCT00522834 | Terminated | Melanoma | Synta Pharmaceuticals Corp. | August 2007 | Phase 3 |
| NCT00087997 | Completed | Soft Tissue Sarcoma | Synta Pharmaceuticals Corp. | July 2004 | Phase 2 |
Tech Support
Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.
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Frequently Asked Questions
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Question 1:
How can we use the compound for in vivo mouse studies?
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Answer:
S1052 in 1% DMSO+30% polyethylene glycol+1% Tween 80 is a suspension, it is fine for oral administration. You can also dissolve S1052 in 0.5-1% CMC-Na solution and treat the mice by oral gavage.
