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Qualification of LSP1-2111 as a Brain Penetrant Group III Metabotropic Glutamate Receptor Orthosteric Agonist.


ABSTRACT: LSP1-2111 is a group III metabotropic glutamate receptor agonist with preference toward the mGlu4 receptor subtype. This compound has been extensively used as a tool to explore the pharmacology of mGlu4 receptor activation in preclinical animal behavioral models. However, the blood-brain barrier penetration of this amino acid derivative has never been studied. We report studies on the central nervous system (CNS) disposition of LSP1-2111 using quantitative microdialysis in rat. Significant unbound concentrations of the drug relative to its in vitro binding affinity and functional potency were established in extracellular fluid (ECF). These findings support the use of LSP1-2111 to study the CNS pharmacology of mGlu4 receptor activation through orthosteric agonist mechanisms.

SUBMITTER: Cajina M 

PROVIDER: S-EPMC4027608 | biostudies-literature | 2014 Feb

REPOSITORIES: biostudies-literature

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Qualification of LSP1-2111 as a Brain Penetrant Group III Metabotropic Glutamate Receptor Orthosteric Agonist.

Cajina Manuel M   Nattini Megan M   Song Dekun D   Smagin Gennady G   Jørgensen Erling B EB   Chandrasena Gamini G   Bundgaard Christoffer C   Toft Dorthe Bach DB   Huang Xinyan X   Acher Francine F   Doller Dario D  

ACS medicinal chemistry letters 20131212 2


LSP1-2111 is a group III metabotropic glutamate receptor agonist with preference toward the mGlu4 receptor subtype. This compound has been extensively used as a tool to explore the pharmacology of mGlu4 receptor activation in preclinical animal behavioral models. However, the blood-brain barrier penetration of this amino acid derivative has never been studied. We report studies on the central nervous system (CNS) disposition of LSP1-2111 using quantitative microdialysis in rat. Significant unbou  ...[more]

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