Results 21 to 30 of about 1,400 (132)

A Sweet Talk: The Molecular Systems of Perineuronal Nets in Controlling Neuronal Communication [PDF]

open access: yes, 2017
Perineuronal nets (PNNs) are mesh-like structures, composed of a hierarchical assembly of extracellular matrix molecules in the central nervous system (CNS), ensheathing neurons and regulating plasticity.
Arranz   +88 more
core   +2 more sources

Reconsideration of the Semaphorin-3A Binding Motif Found in Chondroitin Sulfate Using Galnac4s-6st-Knockout Mice

open access: yesBiomolecules, 2020
The chondroitin sulfate (CS)-rich dense extracellular matrix surrounding neuron cell bodies and proximal dendrites in a mesh-like structure is called a perineuronal net (PNN).
Satomi Nadanaka   +5 more
doaj   +1 more source

60404 HIV Tat Induced Neuroinflammation

open access: yesJournal of Clinical and Translational Science, 2021
IMPACT: Demonstrate the role of astrocyte released MMPs in response to pathogenic HIV protein Tat. OBJECTIVES/GOALS: In the presence of the pathogenic HIV protein Tat, astrocytes have been demonstrated to adopt an inflammatory phenotype as well as ...
Sean Carey, Kathleen Maguire-Zeiss
doaj   +1 more source

Crosstalk Between Astrocytes and Inhibitory Neurons During Maturation: Emerging Mechanisms and Functional Implications. [PDF]

open access: yesJ Neurochem
In this review, we discuss the development and maturation of inhibitory neurons and astrocytes and how early developmental activity in the brain might promote the interactions between these cell types. Early in development, excitatory neurons are the first to emerge.
Tauriala NL, Kellner V.
europepmc   +2 more sources

Cortical fast-spiking parvalbumin interneurons enwrapped in the perineuronal net express the metallopeptidases Adamts8, Adamts15 and Neprilysin. [PDF]

open access: yes, 2014
The in situ hybridization Allen Mouse Brain Atlas was mined for proteases expressed in the somatosensory cerebral cortex. Among the 480 genes coding for protease/peptidases, only four were found enriched in cortical interneurons: Reln coding for reelin ...
A Bernard   +43 more
core   +2 more sources

Neuronal Pentraxin 2 Binds PNNs and Enhances PNN Formation

open access: yesNeural Plasticity, 2019
The perineuronal net (PNN) is a mesh-like proteoglycan structure on the neuronal surface which is involved in regulating plasticity. The PNN regulates plasticity via multiple pathways, one of which is direct regulation of synapses through the control of ...
Heleen M. Van’t Spijker   +5 more
doaj   +1 more source

Maturation of PNN and ErbB4 Signaling in Area CA2 during Adolescence Underlies the Emergence of PV Interneuron Plasticity and Social Memory

open access: yesCell Reports, 2019
Summary: Adolescence is a vulnerable period characterized by major cognitive changes. The mechanisms underlying the emergence of new cognitive functions are poorly understood.
Soledad Domínguez   +7 more
doaj   +1 more source

Region-Specific Alterations of Perineuronal Net Expression in Postmortem Autism Brain Tissue

open access: yesFrontiers in Molecular Neuroscience, 2022
Genetic variance in autism spectrum disorder (ASD) is often associated with mechanisms that broadly fall into the category of neuroplasticity. Parvalbumin positive neurons and their surrounding perineuronal nets (PNNs) are important factors in critical ...
Cheryl Brandenburg   +2 more
doaj   +1 more source

Perineuronal nets enhance the excitability of fast-spiking neurons [PDF]

open access: yes, 2016
© The Author(s), 2016. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in eNeuro 3 (2016): e0112-16.2016, doi:10.1523/ENEURO.0112-16.2016.Perineuronal nets (PNNs) are ...
Balmer, Timothy
core   +1 more source

Proteolytic Remodeling of Perineuronal Nets: Effects on Synaptic Plasticity and Neuronal Population Dynamics

open access: yesNeural Plasticity, 2018
The perineuronal net (PNN) represents a lattice-like structure that is prominently expressed along the soma and proximal dendrites of parvalbumin- (PV-) positive interneurons in varied brain regions including the cortex and hippocampus.
P. Lorenzo Bozzelli   +4 more
doaj   +1 more source

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