Wortmannin, a steroid metabolite of the fungi Penicillium funiculosum, Talaromyces (Penicillium) wortmannii, is a specific, covalent inhibitor of phosphoinositide 3-kinases (PI3Ks) and Polo-Like kinase 1 (PLK1). It has an in vitro inhibitory concentration (IC50) of around 5 nM, making it a more potent inhibitor than LY294002, another commonly used PI3K inhibitor. Wortmannin has also been reported to inhibit members of the polo-like kinase family with IC50 in the same range as for PI3K.

Product information

CAS Number: 19545-26-7

Molecular Weight: 428.43

Formula: C23H24O8

Synonym:

SL-2052

KY-12420

Chemical Name: (1S, 6bR, 9aS, 11R, 11bR)-1-(methoxymethyl)-9a, 11b-dimethyl-3, 6, 9-trioxo-3, 6, 6b, 7, 8, 9, 9a, 10, 11, 11b-decahydro-1H-furo[4, 3, 2-de]indeno[4, 5-h]isochromen-11-yl acetate.

Smiles: CC(=O)O[C@@H]1C[C@@]2(C)[C@@H](CCC2=O)C2=C1[C@@]1(C)[C@@H](COC)OC(=O)C3=COC(=C13)C2=O

InChiKey: QDLHCMPXEPAAMD-QAIWCSMKSA-N

InChi: InChI=1S/C23H24O8/c1-10(24)30-13-7-22(2)12(5-6-14(22)25)16-18(13)23(3)15(9-28-4)31-21(27)11-8-29-20(17(11)23)19(16)26/h8,12-13,15H,5-7,9H2,1-4H3/t12-,13+,15+,22-,23-/m0/s1

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: DMSO : ≥ 50 mg/mL (116.71 mM)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 ^oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 ^oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200

How to use

In Vitro:

Wortmannin (0-100 nM; 24-72 hours) inhibits the proliferation of K562 cells in a time- and dose-dependent manner. The IC50 values at 24 hour, 48 hour, and 72 hour are 25±0.10 nM, 12.5±0.08 nM, and 6.25±0.11 nM, respectively[4]. Wortmannin prevents nuclear entry of YAP[6].

In Vivo:

Wortmannin (oral gavage; daily; in Scid mice; one group of eight mice is dosed with Wortmannin 1 mg/kg for all 14 days. The second group of eight mice is dosed with Wortmannin 1.5 mg/kg for the first 5 days and the dose is decreased to 1 mg/kg for the remaining treatment period) treatment significantly slower the growth rate of murine C3H mammary tumor and human MCF-7 breast cancer xenograft. A dose of 1 mg/kg Wortmannin for 7 days decrease the tumor burdens in mice with established murine C3H mammary tumors by 54% relative to controls. Human MCF-7 breast cancer xenograft burdens are decreased by 97% relative to controls after 14 days of 1 mg/kg Wortmannin beginning 1 day after tumor implantation[5].

References:

1. Yano H, et al. Inhibition of histamine secretion by wortmannin through the blockade of phosphatidylinositol 3-kinase in RBL-2H3 cells. J Biol Chem. 1993 Dec 5;268(34):25846-56.
2. Moon EK, et al. Autophagy inhibitors as a potential antiamoebic treatment for Acanthamoeba keratitis. Antimicrob Agents Chemother. 2015 Jul;59(7):4020-5.
3. Liu Y, et al. Polo-like kinases inhibited by wortmannin. Labeling site and downstream effects. J Biol Chem. 2007 Jan 26;282(4):2505-11.
4. Wu Q, et al. Wortmannin inhibits K562 leukemic cells by regulating PI3k/Akt channel in vitro. J Huazhong Univ Sci Technolog Med Sci. 2009 Aug;29(4):451-6.
5. Lemke LE, et al. Wortmannin inhibits the growth of mammary tumors despite the existence of a novel wortmannin-insensitive phosphatidylinositol-3-kinase. Cancer Chemother Pharmacol. 1999;44(6):491-7.
6. Liu Y, et al. Wortmannin, a widely used phosphoinositide 3-kinase inhibitor, also potently inhibits mammalianpolo-like kinase. Chem Biol. 2005 Jan;12(1):99-107.
7. Pobbati AV, et al. A combat with the YAP/TAZ-TEAD oncoproteins for cancer therapy. Theranostics. 2020 Feb 18;10(8):3622-3635.

Products are for research use only. Not for human use.