Koumine

Koumine is an alkaloid separated from Gelsemium elegans, shows potent anti-tumor activity. Koumine up-regulates the Bax/Bcl-2 ratio and caspase-3 expression in human breast cancer cells. Koumine has anxiolytic, antistress, antipsoriatic, and analgesic activities, protects against the development of arthritis in Rheumatoid arthritis (RA) animal models.

Product information

CAS Number: 1358-76-5

Molecular Weight: 306.40

Formula: C20H22N2O

Chemical Name: (1R,10R,12S,15S,16R,17S)-15-ethenyl-13-methyl-19-oxa-3,13-diazahexacyclo[14.3.1.0²,¹⁰.0⁴,⁹.0¹⁰,¹⁵.0¹²,¹⁷]icosa-2,4,6,8-tetraene

Smiles: CN1C[C@@]2(C=C)[C@@H]3C[C@H]4OC[C@@H]3[C@@H]1C[C@@]12C2=CC=CC=C2N=C14

InChiKey: VTLYEMHGPMGUOT-FXWNUWCSSA-N

InChi: InChI=1S/C20H22N2O/c1-3-19-11-22(2)16-9-20(19)13-6-4-5-7-15(13)21-18(20)17-8-14(19)12(16)10-23-17/h3-7,12,14,16-17H,1,8-11H2,2H3/t12-,14+,16-,17+,19-,20+/m0/s1

Technical Data

Appearance: Solid Power

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

Solubility: DMSO : 31.25 mg/mL (101.99 mM; Need ultrasonic).

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:

Koumine (0.5, 1 and 2 mg/mL) dose- and time-dependently inhibits the proliferation of MCF-7 cells, with an IC50 of 124 µg/mL at 72 h. Koumine induces apoptosis, causes cell cycle arrest at G2/M phase. Koumine (0.5, 1 and 2 mg/mL) up-regulates the Bax/Bcl-2 ratio and caspase-3 expression in a dose-dependent manner in MCF-7 Cells. Koumine (25, 50, 100, and 200 μM) decreases the protein and mRNA levels of microglia M1 polarization factors in LPS-induced BV2 cells.

In Vivo:

Koumine is less toxic, with the median lethal dose (LD50) of 300.0 mg/kg on Wistar rats. Koumine (0.6, 3, or 15 mg/kg/per, p.o.) exhibits antirheumatic properties in rats with adjuvant-induced arthritis (AIA) and collagen-induced arthritis (CIA). Koumine inhibits the increase in cytokines in joint tissue and TNF-α level in serum at 15 mg/kg, and suppresses the increase in the serum level of IL-1β at 3 and 15 mg/kg. Koumine (0.28, 7 mg/kg, s.c.) significantly reduces neuropathic pain after nerve injury. Koumine suppresses the increased Iba-1 protein level.

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