Prostaglandin E2 (PGE2) activates four E prostanoid (EP) receptors, EP1-4. EP4 is a Gs protein-coupled receptor that, by elevating the second messenger cAMP, plays important roles in bone formation and resorption,1 cancer,2 and atherosclerosis.3 CAY10580 is an 8-aza-9-oxo-15-hydroxy saturated analog of PGE2. It selectively binds the EP4 receptor (Ki = 35 nM) relative to the EP1, EP2, and EP3 receptors (Ki = 3,000, 2,000, and >3,000 nM, respectively).4 CAY10580 stimulates cAMP formation in excised mouse ovaries.5
1
Li, M., Thompson, D.D., and Paralkar, V.M. Prostaglandin E2 receptors in bone formation. Int Orthop31767-772(2007).
2
Hawcroft, G., Ko, C.W.S., and Hull, M.A. Prostaglandin E2-EP4 receptor signalling promotes tumorigenic behaviour of HT-29 human colorectal cancer cells. Oncogene263006-3019(2007).
3
Babaev, V.R., Chew, J.D., Ding, L., et al. Macrophage EP4 deficiency increases apoptosis and suppresses early atherosclerosis. Cell Metab8492-501(2008).
4
Billot, X., Chateauneuf, A., Chauret, N., et al. Discovery of a potent and selective agonist of the prostaglandin EP4 receptor. Bioorg Med Chem Lett131129-1132(2003).
5
Smith, R.L., Lee, T., Gould, N.P., et al. Prostaglandin isosteres. 1. (8-Aza-, 8,10-Diaza-, and 8-Aza-11-thia)-9-oxoprostanoic acids and their derivatives. J Med Chem20(10)1292-1299(1977).
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Smith, R.L., Lee, T., Gould, N.P., et al. Prostaglandin isosteres. 1. (8-Aza-, 8,10-Diaza-, and 8-Aza-11-thia)-9-oxoprostanoic acids and their derivatives. J Med Chem20(10)1292-1299(1977).
Billot, X., Chateauneuf, A., Chauret, N., et al. Discovery of a potent and selective agonist of the prostaglandin EP4 receptor. Bioorg Med Chem Lett131129-1132(2003).
Babaev, V.R., Chew, J.D., Ding, L., et al. Macrophage EP4 deficiency increases apoptosis and suppresses early atherosclerosis. Cell Metab8492-501(2008).
Hawcroft, G., Ko, C.W.S., and Hull, M.A. Prostaglandin E2-EP4 receptor signalling promotes tumorigenic behaviour of HT-29 human colorectal cancer cells. Oncogene263006-3019(2007).
Li, M., Thompson, D.D., and Paralkar, V.M. Prostaglandin E2 receptors in bone formation. Int Orthop31767-772(2007).