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GPR88 is an orphan receptor of the Class A rhodopsin family, belonging to the G protein-coupled receptors （GPCRs） family. Existing studies have shown that it is involved in the occurrence and development of a variety of diseases, and at the same time as a potential therapeutic target has aroused widespread interest of researchers. This article reviews the recent research progress of GPR88 receptors in hypertension, alcohol use disorder, anxiety, schizophrenia, movement disorders and other related diseases and agonists, and aims to provide a deeper level of research on GPR88protein Theoretical basis. [ABSTRACT FROM AUTHOR]

G protein-coupled receptors (GPCRs) are the most common targets of the neuropharmacological drugs in the central nervous system (CNS). GPCRs are activated by manifold neurotransmitters, and their activation in turn evokes slow synaptic transmission. They are deeply involved in multiple neurological and psychiatric disorders such as Parkinson’s disease and schizophrenia. In the brain, the striatum is strongly innervated by the ventral tegmental area (VTA) and plays a central role in manifestation of psychiatric disorders. Recently, anatomical and comprehensive transcriptome analysis of the non-odorant GPCR superfamily revealed that the orphan GPCRs GPR88, GPR6, and GPR52, as well as dopamine D1 and D2 receptors and the adenosine A2a receptor, are the most highly enriched in the rodent striatum. Genetically engineered animal models and molecular biological studies have suggested that these striatally enriched GPCRs have a potential to be therapeutic psychiatric receptors. This review summarizes the current understanding of the therapeutic GPCR candidates for psychiatric disorders.

Small molecule modulators of GPR88 activity (agonists, antagonists, or modulators) are of interest as potential agents for the treatment of a variety of psychiatric disorders including schizophrenia. A series of phenylglycinol and phenylamine analogs have been prepared and evaluated for their GPR88 agonist activity and pharmacokinetic (PK) properties. [ABSTRACT FROM AUTHOR]

Modulating GPR88 activity is suggested to have therapeutic utility in the treatment of CNS disorders, such as schizophrenia. This Letter will describe the discovery and SAR development of a class of potent GPR88 agonists. [ABSTRACT FROM AUTHOR]