GHB receptor targets in the CNS: Focus on high-affinity binding sites
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GHB receptor targets in the CNS: Focus on high-affinity binding sites. / Bay, Tina; Eghorn, Laura Friis; Klein, Anders Bue; Wellendorph, Petrine.
In: Biochemical Pharmacology, Vol. 87, No. 2, 2014, p. 220-228.Research output: Contribution to journal › Review › Research › peer-review
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TY - JOUR
T1 - GHB receptor targets in the CNS: Focus on high-affinity binding sites
AU - Bay, Tina
AU - Eghorn, Laura Friis
AU - Klein, Anders Bue
AU - Wellendorph, Petrine
PY - 2014
Y1 - 2014
N2 - γ-Hydroxybutyric acid (GHB) is an endogenous compound in the mammalian brain with both low- and high-affinity receptor targets. GHB is used clinically in the treatment of symptoms of narcolepsy and alcoholism, but also illicitly abused as the recreational drug Fantasy. Major pharmacological effects of exogenous GHB are mediated by GABA subtype B (GABAB) receptors that bind GHB with low affinity. The existence of GHB high-affinity binding sites has been known for more than three decades, but the uncovering of their molecular identity has only recently begun. This has been prompted by the generation of molecular tools to selectively study high-affinity sites. These include both genetically modified GABAB knock-out mice and engineered selective GHB ligands. Recently, certain GABA subtype A (GABAA) receptor subtypes emerged as high-affinity GHB binding sites and potential physiological mediators of GHB effects. In this research update, a description of the various reported receptors for GHB is provided, including GABAB receptors, certain GABAA receptor subtypes and other reported GHB receptors. The main focus will thus be on the high-affinity binding targets for GHB and their potential functional roles in the mammalian brain.
AB - γ-Hydroxybutyric acid (GHB) is an endogenous compound in the mammalian brain with both low- and high-affinity receptor targets. GHB is used clinically in the treatment of symptoms of narcolepsy and alcoholism, but also illicitly abused as the recreational drug Fantasy. Major pharmacological effects of exogenous GHB are mediated by GABA subtype B (GABAB) receptors that bind GHB with low affinity. The existence of GHB high-affinity binding sites has been known for more than three decades, but the uncovering of their molecular identity has only recently begun. This has been prompted by the generation of molecular tools to selectively study high-affinity sites. These include both genetically modified GABAB knock-out mice and engineered selective GHB ligands. Recently, certain GABA subtype A (GABAA) receptor subtypes emerged as high-affinity GHB binding sites and potential physiological mediators of GHB effects. In this research update, a description of the various reported receptors for GHB is provided, including GABAB receptors, certain GABAA receptor subtypes and other reported GHB receptors. The main focus will thus be on the high-affinity binding targets for GHB and their potential functional roles in the mammalian brain.
U2 - 10.1016/j.bcp.2013.10.028
DO - 10.1016/j.bcp.2013.10.028
M3 - Review
C2 - 24269284
VL - 87
SP - 220
EP - 228
JO - Biochemical Pharmacology
JF - Biochemical Pharmacology
SN - 0006-2952
IS - 2
ER -
ID: 108655693