Cited by 55Tactile and Sensory InteractionsNeurogenesis and neuroplasticity mechanismsNeuroscience and Neuropharmacology Research

Experience-dependent plasticity of the barrel cortex in mice observed with 2-DG brain mapping and c-Fos: effects of MMP-9 KO

Kaliszewska, A., Bijata, M., Kaczmarek, L., Kossut, M.·2012·Cerebral Cortex

Abstract

Modifications of properties of the adult sensory cortex by elimination of sensory input (deprivation) serves as a model for studying plasticity in the adult brain. We studied the effects of short- and long-term deprivation (sparing one row of vibrissae) upon the barrel cortex. The response to stimulation (exploration of a new environment) of the spared row was examined with [14C]-2-deoxyglucose autoradiography and c-Fos immunohistochemistry. Both methods found large increases of the functional cortical representation of the spared row of vibrissae, extending into parts of the barrel cortex previously activated by the deprived vibrissae. With both methods, the greatest expansion of spared input was observed in cortical layer IV. In this way, we established a model, which was applied for examining involvement of matrix metalloproteinase 9 (MMP-9), upon experience-dependent cortical plasticity. MMP-9 is an enzyme implicated in plastic modification of the neuronal connections. We found that MMP-9 activity was increased in response to stimulation, and furthermore, MMP-9 knockout mice showed a modest but significant decrease of plasticity in layer IV with 2-DG mapping and in layers II/III with c-Fos mapping. Thus, in adult mouse brain experience-dependent plasticity is in part supported by the activity of MMP-9.

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Crossref · 10.1093/cercor/bhr303

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Authors
Kaliszewska, A., Bijata, M., Kaczmarek, L., & Kossut, M.
Affiliations
Instytut Biologii Doświadczalnej im. Marcelego Nenckiego (PL)
Venue
Cerebral Cortex
Published
2011-10-20
Volume
22
Issue
9
Pages
2160-2170
ISSN
  • 1047-3211 (ISSN-L)
  • 1460-2199
OpenAlex
W2137059302
Cited by
55
References
77
Citations by year
2026: 1 · 2025: 1 · 2024: 2 · 2023: 1 · 2022: 3 · 2021: 6 · 2020: 4 · 2019: 3 · 2018: 5 · 2017: 5 · 2016: 6 · 2015: 9 · 2014: 5 · 2013: 2 · 2012: 2
FWCI
1.46
Type
journal article
Language
en
Open access
closed
Locations
  • Cerebral Cortex (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Tactile and Sensory Interactions
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
experience-dependent plasticity, barrel cortex, sensory deprivation, whiskers, MMP-9, MMP-9 knockout mice, c-fos, 2-deoxyglucose autoradiography, layer 4, cortical reorganization
MeSH terms
Animals, Autoradiography, Brain Mapping, Deoxyglucose, Immunohistochemistry, Mice, Inbred C57BL, Neuronal Plasticity, Sensory Deprivation, Somatosensory Cortex, Vibrissae, Proto-Oncogene Proteins c-fos, Mice, Knockout, Matrix Metalloproteinase 9, Mice

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