Description
Product Information
Storage : Powder -20oC 3 years 4oC 2 years In solvent -80oC 6 months -20oC 1 month
Chemical Name : 3-(2-methoxyethyl)-2-methyl-4,9-dioxo-1-(pyrazin-2-ylmethyl)-4,9-dihydro-1H-naphtho[2,3-d]imidazol-3-ium bromide.
Solubility : DMSO: 10.66 mg/mL
CAS# : 781661-94-7
Purity : >98%
Formula : C20H19BrN4O3
Molecular Weight : 443.29
Biological Activity:
YM-155 is a novel survivin suppressant with an IC50 of 0.54 nM for the inhibition of survivin promoter activity.
How to use:
In Vitro: YM155 is not sensitive to survivn gene promoter-driven luciferase reporter activity even at 30 μM. YM155 significantly inhibits endogenous survivin expression in PC-3 and PPC-1 human HRPC cells with deficient p53 through transcriptional inhibition of the survivin gene promoter. On the contrary YM155 shows no sufficient effect on protein expression of c-IAP2, XIAP, Bcl-2, Bcl-xL, Bad, α-actin, and β-tubulin at 100 nM. YM155 indicates great apoptosis in human cancer cell lines including PC-3 and PPC-1 with a concomitant increase in caspase-3 activity. YM155 potently inhibits human cancer cell lines (mutated or truncated p53) including PC-3, PPC-1, DU145, TSU-Pr1, 22Rv1, SK-MEL-5 and A375 with IC50 from 2.3 to 11 nM, respectively[1]. YM155 increases the sensitivity of NSCLC cells to γ-radiation. The combination of YM155 and γ-radiation increases both the number of apoptotic cells and the activity of caspase-3. YM155 delays the repair of radiation-induced double-strand breaks in nuclear DNA.
In Vivo: YM155 completely inhibits the tumor growth of PC-3 s.c. xenografted prostate tumors at doses of 3 and 10 mg/kg, without body weight loss and blood cell count decrease. Pharmacokinetic analysis shows that YM155 is highly distributed to tumor tissue. Moreover, YM155 shows 80% TGI at a dose of 5 mg/kg in PC-3 orthotopic xenografts[1]. The combination therapy with YM155 and γ-radiation shows great 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.
Reference:
[1]. Nakahara T, et al. YM155, a novel small-molecule survivin suppressant, induces regression of established human hormone-refractory prostate tumor xenografts. Cancer Res. 2007 Sep 1;67(17):8014-21.
[2]. Iisa T, et al. Radiosensitizing effect of YM155, a novel small-molecule survivin suppressant, in non-small cell lung cancer cell lines. Clin Cancer Res. 2008 Oct 15;14(20):6496-504.
[3]. Guo K, et al. A combination of YM-155, a small molecule survivin inhibitor, and IL-2 potently suppresses renal cell carcinoma in murine model. Oncotarget. 2015 Aug 28;6(25):21137-47.
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