A cardiotonic steroid with anticancer activity
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Arenobufagin

Item No. 30695

Technical Information
Formal Name
(3β,5β,11α)-3,11,14-trihydroxy-12-oxo-bufa-20,22-dienolide
CAS Number
464-74-4
Molecular Formula
C24H32O6
Formula Weight
Purity
≥95%
Formulation
A crystalline solid
DMF: 10 mg/mlDMSO: 20 mg/mlDMSO:PBS (pH 7.2) (1:8): 0.11 mg/ml
λmax
299 nm
SMILES
O[C@H]1CC[C@@]2(C)[C@@](CC[C@]([C@]3(O)[C@@]4(C)[C@](C5=COC(C=C5)=O)([H])CC3)([H])[C@]2([H])[C@H](O)C4=O)([H])C1
InChi Code
InChI=1S/C24H32O6/c1-22-9-7-15(25)11-14(22)4-5-17-19(22)20(27)21(28)23(2)16(8-10-24(17,23)29)13-3-6-18(26)30-12-13/h3,6,12,14-17,19-20,25,27,29H,4-5,7-11H2,1-2H3/t14-,15+,16-,17-,19-,20+,22+,23+,24+/m1/s1
InChi Key
JGDCRWYOMWSTFC-AZGSIFHYSA-N
Origin
Plant/Bufonis Venenum
Shipping & Storage Information
Storage
-20°C
Shipping
Room temperature in continental US; may vary elsewhere
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    Product Description

    Arenobufagin is a cardiotonic steroid that has been found in the skin secretions of the toad B. gargarizans and has anticancer activity.1,2,3,4 It inhibits Na+/K+-ATPase activity in isolated guinea pig ventricular myocytes with an IC50 value of 290 nM.1 Arenobufagin (20-500 nM) induces cleavage of poly(ADP-ribose) polymerase (PARP), caspase-3, and caspase-9, as well as induces apoptosis in HepG2 hepatocellular carcinoma cells.2 It inhibits proliferation of HepG2, Hep3B, BEL-7402, and MCF-7 cancer cells (IC50s = 101.9, 39.8, 416.3, and 143.7 nM, respectively), as well as multidrug-resistant HepG2/adm and MCF-7/adr cancer cells (IC50s = 730 and 67.5 nM, respectively). Arenobufagin (1 mg/kg once per day, i.v.) reduces tumor growth, the number and size of lung metastases, and tumor levels of the epithelial-to-mesenchymal transition (EMT) markers vimentin and β-catenin in a PC3 mouse xenograft model.3 Arenobufagin (5 and 10 µM/plug) inhibits VEGF-induced angiogenesis in a Matrigel™ plug assay in mice.4

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. dos Santos Cruz, J., and Matsuda, H. Arenobufagin, a compound in toad venom, blocks Na+-K+ pump current in cardiac myocytes. Eur. J. Pharmacol. 239(1-3), 223-226 (1993).

    2. Zhang, D.-M., Liu, J.-S., Deng, L.-J., et alArenobufagin, a natural bufadienolide from toad venom, induces apoptosis and autophagy in human hepatocellular carcinoma cells through inhibition of PI3K/Akt/ mTOR pathway. Carcinogenesis 34(6), 1331-1342 (2013).

    3. Chen, L., Mai, W., Chen, M., et alArenobufagin inhibits prostate cancer epithelial-mesenchymal transition and metastasis by down-regulating β-catenin. Pharmacol. Res. 123, 130-142 (2017).

    4. Li, M.W., S., Liu, Z., Zhang, W., et alArenobufagin, a bufadienolide compound from toad venom, inhibits VEGF-mediated angiogenesis through suppression of VEGFR-2 signaling pathway. Biochem. Pharmacol. 83(9), 1251-1260 (2012).