Title |
Phosphodiesterase 4 inhibition enhances the dopamine D1 receptor/PKA/DARPP-32 signaling cascade in frontal cortex
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Published in |
Psychopharmacology, August 2011
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DOI | 10.1007/s00213-011-2436-8 |
Pubmed ID | |
Authors |
Mahomi Kuroiwa, Gretchen L. Snyder, Takahide Shuto, Atsuo Fukuda, Yuchio Yanagawa, David R. Benavides, Angus C. Nairn, James A. Bibb, Paul Greengard, Akinori Nishi |
Abstract |
Alteration of dopamine neurotransmission in the prefrontal cortex, especially hypofunction of dopamine D1 receptors, contributes to psychotic symptoms and cognitive deficit in schizophrenia. D1 receptors signal through the cAMP/PKA second messenger cascade, which is modulated by phosphodiesterase (PDE) enzymes that hydrolyze and inactivate cyclic nucleotides. Though several PDEs are expressed in cortical neurons, the PDE4 enzyme family (PDE4A-D) has been implicated in the control of cognitive function. The best studied isoform, PDE4B, interacts with a schizophrenia susceptibility factor, disrupted in schizophrenia 1 (DISC1). |
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