Triptolide - CAS 38748-32-2 Catalog number: BADC-00036

Description

Triptolide is a diterpene triepoxide, immunosuppresive agent extracted from the Chinese herb Tripterygium wilfordii. It has immunosuppressive, anti-inflammatory, antiproliferative and antitumour effects. Triptolide is an NF-κB activation inhibitor.

Synonyms

NSC 163062; PG490; Trisoxireno[4b,5:6,7:8a,9]phenanthro[1,2-c]furan-1(3H)-one, 3b,4,4a,6,6a,7a,7b,8b,9,10-decahydro-6-hydroxy-8b-methyl-6a-(1-methylethyl)-, (3bS,4aS,5aS,6R,6aR,7aS,7bS,8aS,8bS)-; (3bS,4aS,5aS,6R,6aR,7aS,7bS,8aS,8bS)-3b,4,4a,6,6a,7a,7b,8b,9,10-Decahydro-6-hydroxy-8b-methyl-6a-(1-methylethyl)-trisoxireno[4b,5:6,7:8a,9]phenanthro[1,2-c]furan-1(3H)-one; (-)-Triptolide; PG 490; Triptolide

IUPAC Name

(1S,2S,4S,5S,7R,8R,9S,11S,13S)-8-hydroxy-1-methyl-7-(propan-2-yl)-3,6,10,16-tetraoxaheptacyclo[11.7.0.02,4.02,9.05,7.09,11.014,18]icos-14(18)-en-17-one

Canonical SMILES

CC(C)C12C(O1)C3C4(O3)C5(CCC6=C(C5CC7C4(C2O)O7)COC6=O)C

InChI

InChI=1S/C20H24O6/c1-8(2)18-13(25-18)14-20(26-14)17(3)5-4-9-10(7-23-15(9)21)11(17)6-12-19(20,24-12)16(18)22/h8,11-14,16,22H,4-7H2,1-3H3/t11-,12-,13-,14-,16+,17-,18-,19+,20+/m0/s1

InChIKey

DFBIRQPKNDILPW-CIVMWXNOSA-N

Density

1.5±0.1 g/cm3

Solubility

Soluble in Dichloromethane (Slightly), DMSO (Slightly), Ethyl Acetate (Slightly), Methanol

Melting Point

223-230°C

In Vitro

The triptolide-loaded microemulsions showed an enhanced in vitro permeation through mouse skins compared to an aqueous solution of 20% propylene glycol containing 0.025% triptolide. The permeation of microemulsions accorded with the Fick's first diffusion law. No obvious skin irritation was observed for the studied microemulsion ME6, but the aqueous solution of 20% propylene glycol containing 0.025% triptolide revealed the significant skin irritation. Cell growth was significantly inhibited by triptolide as observed by an inverted phase contrast microscope; the results of MTT assay indicated that triptolide inhibits HEC-1B cell proliferation in a dose and time-dependent manner.

In Vivo

Flow cytometry showed that low concentration (5 ng/ml) of triptolide induces cell cycle arrest of HEC-1B cells mainly at S phase, while higher concentration (40 or 80 ng/ml) induced cell cycle arrest of HEC-1B cells mainly at G2/M phase, and apoptosis of the cells was also induced. High-dose triptolide showed a similar tumor-inhibitory effect as cisplatin (-50%); high-dose triptolide significantly inhibited Bcl-2 and VEGF expression in the xenograft model compared to normal saline control (P<0.05). The in vivo anti-osteosarcoma effects of triptolide were verified in osteosarcoma nude mice. The in vivo associated protein expressions were detected using immunohistochemistry (IHC). The results indicated that Triptolide could significantly inhibit the proliferation of various osteosarcoma cells. Besides, it could induce their apoptosis. Triptolide triggered the mitochondrial dependent apoptotic pathway, significantly inhibited the in vivo growth of osteosarcoma cells, and caused in vivo apoptosis.

Clinical Trial Information

Application

ADCs Cytotoxin

Appearance

White to Off-white Powder

Purity

>98%

Quantity

Grams-Kilos

Quality Standard

Enterprise Standard

Shipping

Room temperature, or blue ice upon request.

Storage

Store at -20°C under inert atmosphere

Pictograms

Acute Toxic; Health Hazard

Signal Word

Danger

Boiling Point

601.7±55.0°C at 760 mmHg