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@ARTICLE{Brzdak:140514,
author = {Brzdak, Patrycja and Wójcicka, Olga and Zareba-Koziol,
Monika and Minge, Daniel and Henneberger, Christian and
Wlodarczyk, Jakub and Mozrzymas, Jerzy W and Wójtowicz,
Tomasz},
title = {{S}ynaptic {P}otentiation at {B}asal and {A}pical
{D}endrites of {H}ippocampal {P}yramidal {N}eurons
{I}nvolves {A}ctivation of a {D}istinct {S}et of
{E}xtracellular and {I}ntracellular {M}olecular {C}ues.},
journal = {Cerebral cortex},
volume = {29},
number = {1},
issn = {1047-3211},
address = {Oxford},
publisher = {Oxford Univ. Press},
reportid = {DZNE-2020-06836},
pages = {283-304},
year = {2019},
abstract = {In the central nervous system, several forms of
experience-dependent plasticity, learning and memory require
the activity-dependent control of synaptic efficacy. Despite
substantial progress in describing synaptic plasticity,
mechanisms related to heterogeneity of synaptic functions at
local circuits remain elusive. Here we studied the
functional and molecular aspects of hippocampal circuit
plasticity by analyzing excitatory synapses at basal and
apical dendrites of mouse hippocampal pyramidal cells (CA1
region) in acute brain slices. In the past decade, activity
of metalloproteinases (MMPs) has been implicated as a
widespread and critical factor in plasticity mechanisms at
various projections in the CNS. However, in the present
study we discovered that in striking contrast to apical
dendrites, synapses located within basal dendrites undergo
MMP-independent synaptic potentiation. We demonstrate that
synapse-specific molecular pathway allowing MMPs to rapidly
upregulate function of NMDARs in stratum radiatum involved
protease activated receptor 1 and intracellular kinases and
GTPases activity. In contrast, MMP-independent scaling of
synaptic strength in stratum oriens involved dopamine D1/D5
receptors and Src kinases. Results of this study reveal that
2 neighboring synaptic systems differ significantly in
extracellular and intracellular cascades that control
synaptic gain and provide long-searched transduction
pathways relevant for MMP-dependent synaptic plasticity.},
keywords = {Animals / Dendrites: physiology / Extracellular Fluid:
physiology / Hippocampus: cytology / Hippocampus: physiology
/ Intracellular Fluid: physiology / Male / Mice / Mice,
Inbred C57BL / Organ Culture Techniques / Pyramidal Cells:
physiology / Synapses: physiology / Synaptic Potentials:
physiology},
cin = {U Preclinical Researchers - Bonn},
ddc = {610},
cid = {I:(DE-2719)7000005},
pnm = {342 - Disease Mechanisms and Model Systems (POF3-342)},
pid = {G:(DE-HGF)POF3-342},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:29228131},
doi = {10.1093/cercor/bhx324},
url = {https://pub.dzne.de/record/140514},
}