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L-161982 is a EP4 receptor antagonist that is selective over all other members of the prostanoid receptor family (Ki values are 0.024, 0.71, 1.90, 5.10, 5.63, 6.74, 19 and 23 μM for human EP4, TP, EP3, DP, FP, IP, EP1 and EP2 receptors respectively).
L-161982 completely blocks PGE2-induced ERK phosphorylation and cell proliferation of HCA-7 cells. L-161982 induces apoptosis, cell cycle arrest, and inhibits prostaglandin E2-induced proliferation in oral squamous carcinoma Tca8113 cells.
L-161982 suppresses PGE2-induced bone formation in rats and prevents the nociceptive response induced by misoprostol in formalin-injected mice. L-161982 (5 mg/kg; i.p.; once per day for 2 weeks) reduces arthritis lesions and lesion progression in CIA mice.
| Molecular Weight | 654.72 |
| Formula | C32H29F3N4O4S2 |
| CAS Number | 147776-06-5 |
| Solubility (25°C) | DMSO 90 mg/mL |
| Storage |
Powder -20°C 3 years ; 4°C 2 years In solvent -80°C 6 months ; -20°C 1 month |
[1] Huang, et al. Nature. Tankyrase inhibition stabilizes axin and antagonizes wnt signalling.
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