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January 24, 2010 | History

Modulation of N-methyl-D-aspartate receptors by pituitary adenylate cyclase activating peptide 1 edition

Modulation of N-methyl-D-aspartate receptors by pituitary adenylate cy ...
Daniel Scott Macdonald

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Modulation of N-methyl-D-aspartate receptors by pituitary adenylate cyclase activating peptide.

Published 2006 .
Written in English.

About the Book

Activity of NMDA receptors is controlled by converging signals from GPCRs and receptor tyrosine kinases. PACAP regulates NMDAR responses by stimulating Galphas subunit and PKA as well as Galphaq subunits and PKC. In CA1 neurons PACAP38 enhanced synaptic NMDA, and evoked NMDAR currents via activation of the PAC1R, Galphaq and PKC. Enhancement is isolated CA1 neurons was selectively mediated by NR2A containing NMDARs. Signaling was blocked by intracellular applications of the Src inhibitory peptide, Src(40-58). Immunoblots confirmed biochemical activation of Src. A Galphaq pathway is responsible for this enhancement as it was attenuated by RGS2 as it was in PLCbeta1 knockout mice. It was also blocked by preventing elevations in intracellular Ca2+, and it was eliminated by inhibiting PKC and CAKbeta/Pyk2. Peptides which mimic binding sites for Fyn or Src on RACK1 enhance NMDARs but their effects were blocked by Src(40-58) implying that Src is the ultimate regulator of NMDARs.

Edition Notes

Source: Masters Abstracts International, Volume: 44-06, page: 2775.

Thesis (M.Sc.)--University of Toronto, 2006.

Electronic version licensed for access by U. of T. users.

ROBARTS MICROTEXT copy on microfiche.

The Physical Object

107 leaves.
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January 24, 2010 Edited by WorkBot add more information to works
December 11, 2009 Created by WorkBot add works page