Name | Koumine |
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Synonyms |
13-Methyl-15-vinyl-19-oxa-3,13-diazahexacyclo[14.3.1.0.0.0.0]icosa-2,4,6,8-tetraene
6,4-(Epoxymethano)-3,11b-methano-11bH-pyrido[4,3-c]carbazole, 11c-ethenyl-1,2,3,4,4a,5,6,11c-octahydro-2-methyl-, (3S,4R,4aR,6R,11cS)- (1R,12S,15S,16R,17R)-13-Methyl-15-vinyl-19-oxa-3,13-diazahexacyclo[14.3.1.0.0.0.0]icosa-2,4,6,8-tetraene 6,4-(Epoxymethano)-3,11b-methano-11bH-pyrido[4,3-c]carbazole, 11c-ethenyl-1,2,3,4,4a,5,6,11c-octahydro-2-methyl- |
Description | 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[1]. Koumine has anxiolytic, antistress, antipsoriatic, and analgesic activities[3], protects against the development of arthritis in Rheumatoid arthritis (RA) animal models[2]. |
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Related Catalog | |
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[1]. 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[1]. Koumine (25, 50, 100, and 200 μM) decreases the protein and mRNA levels of microglia M1 polarization factors in LPS-induced BV2 cells[3]. |
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)[2]. 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[2]. Koumine (0.28, 7 mg/kg, s.c.) significantly reduces neuropathic pain after nerve injury. Koumine suppresses the increased Iba-1 protein level[3]. |
References |
Density | 1.4±0.1 g/cm3 |
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Boiling Point | 436.5±45.0 °C at 760 mmHg |
Melting Point | 168℃ |
Molecular Formula | C20H22N2O |
Molecular Weight | 306.401 |
Flash Point | 217.8±28.7 °C |
Exact Mass | 306.173218 |
PSA | 24.83000 |
LogP | 2.18 |
Vapour Pressure | 0.0±1.0 mmHg at 25°C |
Index of Refraction | 1.763 |
Storage condition | 2-8C |
Precursor 4 | |
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DownStream 0 |