Article
Medicine, Research & Experimental
Oana Chever, Sarah Zerimech, Paolo Scalmani, Louisiane Lemaire, Lara Pizzamiglio, Alexandre Loucif, Marion Ayrault, Martin Krupa, Mathieu Desroches, Fabrice Duprat, Isabelle Lena, Sandrine Cestele, Massimo Mantegazza
Summary: Spreading depolarizations (SDs) are involved in various neurological conditions, with GABAergic interneurons playing a key role in the initiation of cortical spreading depression (CSD). The study found that hyperactivity of GABAergic interneurons can ignite CSD in the neocortex without the need for GABA or glutamatergic synaptic transmission. This neocortex-specific mechanism of CSD initiation is relevant to familial hemiplegic migraine type-3 (FHM3) caused by gain-of-function mutations of Na(V)1.1.
JOURNAL OF CLINICAL INVESTIGATION
(2021)
Article
Multidisciplinary Sciences
Alba Vilchez-Acosta, Yasmina Manso, Adrian Cardenas, Alba Elias-Tersa, Magdalena Martinez-Losa, Marta Pascual, Manuel Alvarez-Dolado, Angus C. Nairn, Victor Borrell, Eduardo Soriano
Summary: The extracellular protein Reelin, derived from both CR cells and GABAergic interneurons, plays a crucial role in regulating the migration and positioning of cortical neurons during development. Disruptions in Reelin can lead to developmental disorders and neuropsychiatric disorders.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Review
Biology
Elisa Mazuir, Desdemona Fricker, Nathalie Sol-Foulon
Summary: Oligodendrocyte myelination of axons enhances the speed and reliability of action potential propagation, playing a crucial role in cortical information processing. Two subtypes of cortical GABAergic neurons are myelinated, with expression of pre-nodes on inhibitory cells' axons revealing communication between oligodendrocytes and neurons.
Article
Genetics & Heredity
Sathish Venkataramanappa, Dagmar Schuetz, Friederike Saaber, Praveen Ashok Kumar, Philipp Abe, Stefan Schulz, Ralf Stumm
Summary: Mutations in the DONSON gene have been linked to skeletal abnormalities and microcephaly. Deletion of Donson in cortical progenitors led to extensive cell death and abnormalities in cortical development. Targeting Donson may be a potential strategy for experimental and therapeutic purposes.
Article
Neurosciences
Benjamin Compans, Juan Burrone
Summary: Uncovering the wiring rules employed by neurons during development is challenging but important for neurodevelopmental disorders. Chandelier cells play a crucial role in the formation and plasticity of inhibitory synapses and recent data have provided insights into the molecules involved and the developmental plasticity of connections formed by Chandelier cells onto pyramidal cells.
CURRENT OPINION IN NEUROBIOLOGY
(2023)
Article
Developmental Biology
Till Scheuer, Elena Auf Dem Brinke, Sabine Grosser, Susanne A. Wolf, Daniele Mattei, Yuliya Sharkovska, Paula C. Barthel, Stefanie Endesfelder, Vivien Friedrich, Christoph Buehrer, Imre Vida, Thomas Schmitz
Summary: This study found that neonatal oxidative stress may lead to a decrease in the density of parvalbumin-expressing interneurons in the brain, as well as the presence of psychiatric symptoms, such as deficits in social interaction, learning, and attention. Additionally, delays in cortical myelination and decreased expression of oligodendroglial glial cell-derived neurotrophic factor were observed, indicating that impaired oligodendroglial-interneuronal interaction contributes to interneuronal damage.
Article
Neurosciences
Kanghoon Jung, Youngjin Choi, Hyung-Bae Kwon
Summary: This article reviews the structural and functional properties of chandelier cells (ChCs) and their implications in behavioral functions, network activity, and psychiatric disorders. This provides insights into the distinctive roles of various single-type interneurons in cortical neural coding and the pathophysiology of cortical dysfunction.
FRONTIERS IN CELLULAR NEUROSCIENCE
(2022)
Article
Neurosciences
Ivo Spiegel
Summary: This paper discusses recent experimental and theoretical studies that point to specific experience-induced changes in select IN subtypes as central regulators of plasticity in the cortex. Specifically, it focuses on the recent identification of several experience-regulated secreted molecules that modulate specific sets of synapses in IN subtypes. The author argues that elucidating these molecular mechanisms will allow experimental testing of predictions made by theoretical models about the plasticity functions of specific IN subtypes.
CURRENT OPINION IN NEUROBIOLOGY
(2021)