✍ Scribed by Lennart Bunch; Povl Krogsgaard-Larsen
No coin nor oath required. For personal study only.
(S)‐Glutamic acid (Glu) is the major excitatory neurotransmitter in the mammalian central nervous system, activating the plethora of glutamate receptors (GluRs). In broad lines, the GluRs are divided into two major classes: the ionotropic Glu receptors (iGluRs) and the metabotropic Glu receptors (mGluRs). Within the iGluRs, five subtypes (KA1, KA2, iGluR5‐7) show high affinity and express full agonist activity upon binding of the naturally occurring amino acid kainic acid (KA). Thus these receptors have been named the KA receptors. This review describes all—to our knowledge—published KA receptor agonists. In total, over 100 compounds are described by means of chemical structure and available pharmacological data. With this perspective review, it is our intention to ignite and stimulate inspiration for future design and synthesis of novel subtype selective KA receptor agonists. © 2008 Wiley Periodicals, Inc. Med Res Rev, 29, No. 1, 3–28, 2009
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