包装 | 价格(元) |
25μg (Solution in ethanol) | 电议 |
50μg (Solution in ethanol) | 电议 |
100μg (Solution in ethanol) | 电议 |
Cell lines | Rabbit lens epithelial cells, N/N1003A cells |
Preparation method | The solubility of this compound in DMSO is > 10 mM. General tips for obtaining a higher concentration: Please warm the tube at 37 ℃ for 10 minutes and/or shake it in the ultrasonic bath for a while. Stock solution can be stored below -20℃ for several months. |
Reacting condition | 10-100 nM, 0-24 h, |
Applications | In confluent rabbit lens epithelial cells (RLECs), okadaic acid (100 nM) within 3 to 24 h significantly induced cell apoptosis. Also, okadaic acid induced the expression of p53 and bax, which were necessary for the apoptotic programs. In N/N1003A cells, okadaic acid (10 nM) decreased total phosphatase activity by 20% and mainly inhibited PP-2A activity, while okadaic acid (100 nM) reduced 81% total phosphatase activity and inhibited PP-1 and PP-2A activity. |
Animal models | Adult male Wistar rats |
Dosage form | 0-10 mg/kg, 30 min, injection cannula |
Application | Intrastriatal infusion of okadaic acid (0.005, 0.05 and 0.5 nmol) increased CREB and Elk-1 phosphorylation and c-Fos immunoreactivity in the injected dorsal striatum in a dose-dependent manner. Okadaic acid (0.05 and 0.5 nM) increased c-fos mRNA expression in the dorsal striatum in a dose-dependent manner. Okadaic acid (0.05 and 0.5 nmol) at a survival time of 30 min significantly increased c-fos mRNA hybridization signals in the striatum in a dose-dependent manner. Okadaic acid at 0.05 nmol significantly increased pCREB and pElk-1. Okadaic acid (10 nM) inhibited PP-2A activity and okadaic acid (100 nM) inhibited both PP-2A and PP-1 activity. |
Other notes | Please test the solubility of all compounds indoor, and the actual solubility may slightly differ with the theoretical value. This is caused by an experimental system error and it is normal. |
文献引用 | |
产品描述 | Okadaic acid is a marine sponge toxin which potently inhibits certain serine/threonine protein phosphatases. This cell permeable inhibitor targets the multiple isoforms of PP1 (IC50 = 10-50 nM), both isoforms of PP2A (IC50 = 0.5 nM) and PP3 (IC50 = 4 nM).[1],[2],[3] It is a very weak inhibitor of PP2B (IC50 > 2 μM) and does not inhibit PP2C or other phosphatases.[1],[3 ]Presumably through these actions, okadaic acid is a potent carcinogen and induces tau phosphorylation.[4],[5] In sponge, okadaic acid plays a role in defense, inducing apoptosis in symbiotic or parasitic annelids.[6] Reference: |