Spinal inflammatory hyperalgesia is mediated by prostaglandin E receptors of the EP2 subtype.

Reinold, H; Ahmadi, Seifollah; Depner, U B; Layh, B; Heindl, C; Hamza, M; Pahl, A; Brune, K; Narumiya, S; Müller, U; Zeilhofer, Hanns Ulrich

doi:10.1172/JCI200523618

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Reinold, H., Ahmadi, S., Depner, U. B., Layh, B., Heindl, C., Hamza, M., Pahl, A., Brune, K., Narumiya, S., Müller, U., & Zeilhofer, H. U. (2005). Spinal inflammatory hyperalgesia is mediated by prostaglandin E receptors of the EP2 subtype. Journal of Clinical Investigation, 115(3), 673–679. https://doi.org/10.1172/JCI200523618

Abstract

Blockade of prostaglandin (PG) production by COX inhibitors is the treatment of choice for inflammatory pain but is also prone to severe side effects. Identification of signaling elements downstream of COX inhibition, particularly of PG receptor subtypes responsible for pain sensitization (hyperalgesia), provides a strategy for better-tolerated analgesics. Here, we have identified PGE2 receptors of the EP2 receptor subtype as key signaling elements in spinal inflammatory hyperalgesia. Mice deficient in EP2 receptors (EP2-/- mice) comp