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YM155 (Sepantronium Bromide)
| Product Name | YM155 (Sepantronium Bromide) |
| Price: | Inquiry |
| Catalog No.: | CN00519 |
| CAS No.: | 781661-94-7 |
| Molecular Formula: | C20H19BrN4O3 |
| Molecular Weight: | 443.29 g/mol |
| Purity: | >=98% |
| Type of Compound: | Alkaloids |
| Physical Desc.: | Powder |
| Source: | |
| Solvent: | Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc. |
| SMILES: | COCCn1c(C)[n+](c2c1C(=O)c1ccccc1C2=O)Cc1cnccn1.[Br-] |
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| Description | YM-155 is a survivin inhibitor with an IC50 of 0.54 nM. |
| Target | IC50: 0.54 nM (survivin) |
| In Vitro | YM155 (30 μM) is not sensitive to survivn gene promoter-driven luciferase reporter activity. YM155 shows significant supression on endogenous survivin expression in PC-3 and PPC-1 human HRPC cells with deficient p53 via transcriptional inhibition of the survivin gene promoter. YM155 (100 nM) does not affect protein expression of c-IAP2, XIAP, Bcl-2, Bcl-xL, Bad, α-actin, and β-tubulin. YM155 potently inhibits human cancer cell lines (mutated or truncated p53) such as PC-3, PPC-1, DU145, TSU-Pr1, 22Rv1, SK-MEL-5 and A375 with IC50s ranging from 2.3 to 11 nM, respectively[1]. YM155 resultin in an increase in sensitivity of NSCLC cells to γ-radiation. YM155 combined with γ-radiation increases both the number of apoptotic cells and the activity of caspase-3. In addition, YM155 delays the repair of radiation-induced double-strand breaks in nuclear DNA[2]. |
| In Vivo | YM155 (3 and 10 mg/kg) inhibits the tumor growth in PC-3 xenografts, without obvious body weight loss and blood cell count decrease. YM155 is highly distributed to tumor tissue in vivo. YM155 shows 80% TGI at a dose of 5 mg/kg in PC-3 orthotopic xenografts[1]. YM155 in combination with γ-radiation shows potent antitumor activity against H460 or Calu6 xenografts in nude mice[2]. In this orthotopic renal and metastatic lung tumors models, YM155 and IL-2 additively decreases tumor weight, lung metastasis, and luciferin-stained tumor images[3]. |
| Cell Assay | The antiproliferative activity of YM-155 is measured. After treatment with YM-155 for 48 h, the cell count is determined by sulforhodamine B assay. The GI50 value is calculated by logistic analysis, which is the drug concentration resulting in a 50% reduction in the net protein increase (as measured by sulforhodamine B staining) in control cells during the drug incubation. The assay is done in triplicate, and the mean GI50 value is obtained from the results of four independent assays. |
| Animal Admin | Five-week-old male nude mice (BALB/c nu/nu) are used for the assay. PC-3 cells (2×106-3×106) are injected into the flanks of the mice and allowed to reach a tumor volume of > 100 mm3 in tumor volume (length×width2×0.5). YM-155 is s.c. administered as a 3-day continuous infusion per week for 2 weeks using an implanted micro-osmotic pump or i.v. administered five times a week for 2 weeks. The percentage of tumor growth inhibition 14 days after initial YM-155 administration is calculated for each group using the following formula: MTV=100×{1-[(MTV of the treated group on day 14)-(MTV of the treated group on day 0)]/[(MTV of the control group on day 14)-(MTV of the control group on day 0)]}, where MTV is mean tumor volume. For both the frozen tumors and plasma samples, survivin expression levels are analyzed by Western blotting and YM-155 drug concentration by high-performance liquid chromatography/triple quadrupole mass spectrometry (LC/MS/MS) using validated methods. |
| Exact Mass | 442.064056 |
| PSA | 77.96000 |
| Storage condition | -20°C |