Molecular Formula | C28H38O6
|
Molar Mass | 470.6 |
Density | 1.28 |
Melting Point | 252-253℃ |
Boling Point | 680.7±55.0 °C(Predicted) |
Specific Rotation(α) | D28 +125° (c = 1.30 in CHCl3) |
Flash Point | 226℃ |
Solubility | Soluble in DMSO (up to 20 mg/ml) |
Appearance | White solid |
Color | White |
pKa | 13.49±0.70(Predicted) |
Storage Condition | Desiccate at -20°C |
Stability | Stable for 1 year from date of purchase as supplied. Solutions in DMSO may be stored at -20°C for up to 1 month. |
Sensitive | Sensitive to air |
In vitro study | Withaferin A has antiinflammatory activity, and potently inhibits NF-kB activation by preventing the TNF-induced activation of Ik-B kinase beta via a thioalkylation-sensitive redox mechanism. Withaferin A also has anticancer activity. Withaferin A targets the IF protein vimentin, causes aggregation of vimentin filaments in bovine aortic endothelial cells (BAECs) at 3 μM, and induces vimentin fragmentation in endothelial cells at 10 μM. Withaferin A (0.5, 1.5 μM) alone or incombination with cisplatin (CIS) dose-dependently reduces tumorigenic potential of ALDH1 positive cancer stem cells (CSCs). |
In vivo study | Withaferin A (2 mg/kg, i.p.) shows potent angiogenesis inhibitory activity via vimentin in mice. Withaferin A (2 mg/kg) combined with cisplatin (CIS) regulates the expression of ALDH1 marker, and downregulates the expression of securin in tumors collected from mice. |