Gentleman S, Parenti M, Commissiong J W, Neff N H
Brain Res. 1981 Apr 6;210(1-2):271-5. doi: 10.1016/0006-8993(81)90900-8.
A dopamine-activated adenylate cyclase has been identified in a membrane fraction of rat spinal cord. The concentration of dopamine producing half-maximal activation is about 5 microM and the activation is blocked by haloperidol. Apomorphine also activates the cyclase. Following transection of the cord, adenylate cyclase becomes about 5-10 times more sensitive to dopamine below the transection. The presence of dopamine-activated adenylate cyclase in the cord is consistent with reports of dopamine-containing tracts in spinal cord. This neuronal system may play an essential role in normal spinal mechanisms, in disease associated with dopaminergic neurons, as well as in the side-effects of neuroleptic drugs.
