AN ANTAGONIST OF GLUTAMATE METABOTROPIC RECEPTORS, (RS)-ALPHA-METHYL-4-CARBOXYPHENYLGLYCINE, PREVENTS THE LTP-RELATED INCREASE IN POSTSYNAPTIC AMPA SENSITIVITY IN HIPPOCAMPAL SLICES
Oa. Sergueeva et al., AN ANTAGONIST OF GLUTAMATE METABOTROPIC RECEPTORS, (RS)-ALPHA-METHYL-4-CARBOXYPHENYLGLYCINE, PREVENTS THE LTP-RELATED INCREASE IN POSTSYNAPTIC AMPA SENSITIVITY IN HIPPOCAMPAL SLICES, Neuropharmacology, 32(9), 1993, pp. 933-935
(RS)-alpha-methyl-4-carboxyphenylglycine (MCPG), a compound which sele
ctively antagonizes metabotrtopic glutamate receptors (mGlu-R), precen
ts the LTP of field excitatory postsynaptic potentials (fEPSP) as well
as the tetanus-induced increase in AMPA-evoked responses (fPRs) in th
e CA1 region of hippocampal slices. This effects of MCPG provide evide
nce for the involvement of mGlu-Rs in mechanisms underlying the postsy
naptic maintenance of LTP, which appears to be mediated, at least part
ially, by an increase in sensitivity and/or number of postsynaptic AMP
A receptors.