Cited by 26Neuroscience and Neuropharmacology ResearchMemory and Neural MechanismsNeurogenesis and neuroplasticity mechanisms

Intrinsic cellular and molecular properties of in vivo hippocampal synaptic plasticity are altered in the absence of key synaptic matrix molecules

Jansen, Stephan, Gottschling, Christine, Faissner, Andreas, Manahan‐Vaughan, Denise·2017·Hippocampus

Abstract

Hippocampal synaptic plasticity comprises a key cellular mechanism for information storage. In the hippocampus, both long‐term potentiation (LTP) and long‐term depression (LTD) are triggered by synaptic Ca 2+‐elevations that are typically mediated by the opening of voltage‐gated cation channels, such as N‐methyl‐d‐aspartate receptors (NMDAR), in the postsynaptic density. The integrity of the post‐synaptic density is ensured by the extracellular matrix (ECM). Here, we explored whether synaptic plasticity is affected in adult behaving mice that lack the ECM proteins brevican, neurocan, tenascin‐C, and tenascin‐R (KO). We observed that the profiles of synaptic potentiation and depression in the dentate gyrus (DG) were profoundly altered compared to plasticity profiles in wild‐type littermates (WT). Specifically, synaptic depression was amplified in a frequency‐dependent manner and although late‐LTP (>24 hr) was expressed following strong afferent tetanization, the early component of LTP (<75 min post‐tetanization) was absent. LTP (>4 hr) elicited by weaker tetanization was equivalent in WT and KO animals. Furthermore, this latter form of LTP was NMDAR‐dependent in WT but not KO mice. Scrutiny of DG receptor expression revealed significantly lower levels of both the GluN2A and GluN2B subunits of the N‐methyl‐d‐aspartate receptor, of the metabotropic glutamate receptor, mGlu5 and of the L‐type calcium channel, Ca v 1.3 in KO compared to WT animals. Homer 1a and of the P/Q‐type calcium channel, Ca v 1.2 were unchanged in KO mice. Taken together, findings suggest that in mice that lack multiple ECM proteins, synaptic plasticity is intact, but is fundamentally different.

Integrity signals

Registry

Crossref · 10.1002/hipo.22742

Cites

76 of 76 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Jansen, S., Gottschling, C., Faissner, A., & Manahan‐Vaughan, D.
Affiliations
  • Ruhr University Bochum (DE)
  • Department of Cell Morphology and Molecular Neurobiology, Faculty of Biology and Biotechnology Ruhr University Bochum Bochum Germany
Corresponding author
Manahan‐Vaughan, Denise
Venue
Hippocampus
Publisher
Wiley
Published
2017-05-29
Volume
27
Issue
8
Pages
920-933
ISSN
  • 1050-9631 (ISSN-L)
  • 1098-1063
OpenAlex
W2616760772
Cited by
26
References
76
Citations by year
2025: 3 · 2024: 3 · 2023: 2 · 2022: 3 · 2021: 3 · 2020: 1 · 2019: 3 · 2018: 4 · 2017: 4
FWCI
1.61
Type
journal article
Language
en
Open access
closed
Locations
  • Hippocampus (publishedVersion)
  • PubMed (publishedVersion)
Funders
German Research Foundation (DFG) (FOR 1581/P2, FA159/22-1)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
Keywords
hippocampal synaptic plasticity, extracellular matrix, brevican, neurocan, tenascin-C, tenascin-R, long-term potentiation, long-term depression, NMDA receptor, GluN2A, GluN2B, mGlu5, Cav1.3, dentate gyrus, knockout mice
MeSH terms
Animals, Animals, Newborn, Electric Stimulation, Extracellular Matrix, Hippocampus, Male, Mice, Transgenic, Neuronal Plasticity, Piperazines, Wakefulness, Receptors, N-Methyl-D-Aspartate, Patch-Clamp Techniques, Excitatory Amino Acid Antagonists, Tenascin, Calcium Channels, L-Type, Mice, Neurocan, Brevican

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review