Ispinesib (SB-715992) (Synonyms: SB-715992) |
Catalog No.GC13394
One-Click Copy Product Info
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L'ispinesib (SB-715992) est un inhibiteur spécifique de la protéine du fuseau de la kinésine (KSP), avec un Ki app de 1,7 nM.
Products are for research use only. Not for human use. We do not sell to patients.
Cas No.: 336113-53-2
Sample solution is provided at 25 µL, 10mM.
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Ispinesib (SB-715992) is a selective inhibitor of KSP with IC50 value of 0.5 nM [1].
Kinesin spindle protein (KSP) is a kinesin motor protein and plays an important role in the formation of a bipolar mitotic spindle and cell cycle progression through mitosis. It has been shown that abnormal expression of KSP is correlated with a variety of human cancers and its inhibitors may be a promising anticancer agent [2] [3].
Ispinesib (SB-715992) is a potent KSP inhibitor and often combines with chemotherapy drugs to tumor treatment. When tested with a panel of 23 tumor cell lines, Ispinesib (SB-715992) treatment showed high activity to inhibit KSP in most of the cell lines while only Rh18 having an IC50 value greater than 1 μM (median IC50=4.1 nM, maximum IC50=0.5 nM) by using PPTP method [1]. In a panel of 53 breast cell lines, Ispinesib (SB-715992) exhibits broad antiproliferative activity and up-regulated the expression of both mitotic and apoptotic markers in MDA-MB-468 cell line [2]. When tested with PC-3 cells, Ispinesib (SB-715992) treatment inhibits cell proliferation, inducs cell apoptosis and up-regulated the expressions of genes that related to the control of cell proliferation, cell cycle, cell signaling pathways and apoptosis [3].
In mouse model with 26 tumor cells subcutaneous xenograft, administration of Ispinesib (SB-715992) inducs markedly tumor growth delay with the percent of 88% (23/26) and maintained completed response (CR) in the rhaboid tumor, Wilms tumor and Ewing sarcoma xenograft mouse model [1].
References:
[1]. Carol, H., et al., Initial testing (stage 1) of the kinesin spindle protein inhibitor ispinesib by the pediatric preclinical testing program. Pediatr Blood Cancer, 2009. 53(7): p. 1255-63.
[2]. Purcell, J.W., et al., Activity of the kinesin spindle protein inhibitor ispinesib (SB-715992) in models of breast cancer. Clin Cancer Res, 2010. 16(2): p. 566-76.
[3]. Davis, D.A., et al., Increased therapeutic potential of an experimental anti-mitotic inhibitor SB715992 by genistein in PC-3 human prostate cancer cell line. BMC Cancer, 2006. 6: p. 22.
| Cell experiment [1]: | |
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Cell lines |
BT-474, MD A-MB-468 cell lines |
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Preparation method |
The solubility of this compound in DMSO is >10 mM. General tips for obtaining a higher concentration: Please warm the tube at 37 °C for 10 minutes and/or shake it in the ultrasonic bath for a while.Stock solution can be stored below -20°C for several months. |
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Reaction Conditions |
72 h; GI50=45 nM (BT-474), GI50=19 nM (MD A-MB-468) |
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Applications |
Cells were treated with increasing concentrations of ispinesib and ranked according to the concentration of drug required to reduce growth by 50%. The GI50 values were 45 nM and 19 nM for BT-474 and MD A-MB-468 cell lines, respectively. |
| Animal experiment [1]: | |
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Animal models |
Nude nu/nu mice, SCID mice |
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Dosage form |
8 mg/kg (SCID), 10 mg/kg (nude); Intraperitoneal injection |
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Applications |
Mice bearing tumor xenografts of MDA-MB-468 was treated i.p. with ispinesib at its MTD (SCID, 8 mg/kg; nude, 10 mg/kg) on its optimal q4d×3 schedule. The triple-negative xenograft model MDA-MB-468, among the most sensitive lines in vitro, exhibited the greatest ispinesib sensitivity in vivo. On ispinesib treatment, MDA-MB-468 tumors regressed completely in all mice, each scoring as TFS at the end of the study and 30 days beyond. |
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Other notes |
Please test the solubility of all compounds indoor, and the actual solubility may slightly differ with the theoretical value. This is caused by an experimental system error and it is normal. |
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References: [1] Purcell J W, Davis J, Reddy M, et al. Activity of the kinesin spindle protein inhibitor ispinesib (SB-715992) in models of breast cancer[J]. Clinical Cancer Research, 2010, 16(2): 566-576. |
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| Cas No. | 336113-53-2 | SDF | |
| Synonymes | SB-715992 | ||
| Chemical Name | N-(3-aminopropyl)-N-[(1R)-1-(3-benzyl-7-chloro-4-oxoquinazolin-2-yl)-2-methylpropyl]-4-methylbenzamide | ||
| Canonical SMILES | CC1=CC=C(C=C1)C(=O)N(CCCN)C(C2=NC3=C(C=CC(=C3)Cl)C(=O)N2CC4=CC=CC=C4)C(C)C | ||
| Formula | C30H33ClN4O2 | M.Wt | 517.06 |
| Solubility | ≥ 25.85mg/mL in DMSO, ≥ 48.4 mg/mL in EtOH | Storage | 4°C, protect from light |
| General tips | Please select the appropriate solvent to prepare the stock solution according to the
solubility of the product in different solvents; once the solution is prepared, please store it in
separate packages to avoid product failure caused by repeated freezing and thawing.Storage method
and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored
at -20°C, please use it within 1 month. To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time. |
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| Shipping Condition | Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request. | ||
| Prepare stock solution | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 1.934 mL | 9.6701 mL | 19.3401 mL |
| 5 mM | 386.8 μL | 1.934 mL | 3.868 mL |
| 10 mM | 193.4 μL | 967 μL | 1.934 mL |
Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)
g
μL
Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)
Calculation results:
Working concentration: mg/ml;
Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )
Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL saline, mix and clarify.
Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.
Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.
3. All of the above co-solvents are available for purchase on the GlpBio website.
Quality Control & SDS
- View current batch:
- Purity: >98.00% Appearance: A solid
- COA (Certificate of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Average Rating: 5 (Based on Reviews and 40 reference(s) in Google Scholar.)