Rewiring of Memory Circuits: Connecting Adult Newborn Neurons With the Help of Microglia

New neurons are continuously generated from stem cells and integrated into the adult hippocampal circuitry, contributing to memory function. Several environmental, cellular, and molecular factors regulate the formation of new neurons, but the mechanisms that govern their incorporation into memory ci...

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Main Authors: Noelia Rodríguez-Iglesias, Amanda Sierra, Jorge Valero
Format: Article
Language:English
Published: Frontiers Media S.A. 2019-03-01
Series:Frontiers in Cell and Developmental Biology
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fcell.2019.00024/full
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author Noelia Rodríguez-Iglesias
Noelia Rodríguez-Iglesias
Amanda Sierra
Amanda Sierra
Amanda Sierra
Jorge Valero
Jorge Valero
Jorge Valero
author_facet Noelia Rodríguez-Iglesias
Noelia Rodríguez-Iglesias
Amanda Sierra
Amanda Sierra
Amanda Sierra
Jorge Valero
Jorge Valero
Jorge Valero
author_sort Noelia Rodríguez-Iglesias
collection DOAJ
description New neurons are continuously generated from stem cells and integrated into the adult hippocampal circuitry, contributing to memory function. Several environmental, cellular, and molecular factors regulate the formation of new neurons, but the mechanisms that govern their incorporation into memory circuits are less explored. Herein we will focus on microglia, the resident immune cells of the CNS, which modulate the production of new neurons in the adult hippocampus and are also well suited to participate in their circuit integration. Microglia may contribute to the refinement of brain circuits during development and exert a role in physiological and pathological conditions by regulating axonal and dendritic growth; promoting the formation, elimination, and relocation of synapses; modulating excitatory synaptic maturation; and participating in functional synaptic plasticity. Importantly, microglia are able to sense subtle changes in their environment and may use this information to differently modulate hippocampal wiring, ultimately impacting on memory function. Deciphering the role of microglia in hippocampal circuitry constant rewiring will help to better understand the influence of microglia on memory function.
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spelling doaj.art-036ffbc0e2734e4581eac8562ba9be652022-12-22T00:27:36ZengFrontiers Media S.A.Frontiers in Cell and Developmental Biology2296-634X2019-03-01710.3389/fcell.2019.00024439686Rewiring of Memory Circuits: Connecting Adult Newborn Neurons With the Help of MicrogliaNoelia Rodríguez-Iglesias0Noelia Rodríguez-Iglesias1Amanda Sierra2Amanda Sierra3Amanda Sierra4Jorge Valero5Jorge Valero6Jorge Valero7Laboratory of Glial Cell Biology, Achucarro Basque Center for Neuroscience, Leioa, SpainDepartment of Neuroscience, University of the Basque Country UPV/EHU, Leioa, SpainLaboratory of Glial Cell Biology, Achucarro Basque Center for Neuroscience, Leioa, SpainDepartment of Neuroscience, University of the Basque Country UPV/EHU, Leioa, SpainIkerbasque Foundation, Bilbao, SpainLaboratory of Glial Cell Biology, Achucarro Basque Center for Neuroscience, Leioa, SpainDepartment of Neuroscience, University of the Basque Country UPV/EHU, Leioa, SpainIkerbasque Foundation, Bilbao, SpainNew neurons are continuously generated from stem cells and integrated into the adult hippocampal circuitry, contributing to memory function. Several environmental, cellular, and molecular factors regulate the formation of new neurons, but the mechanisms that govern their incorporation into memory circuits are less explored. Herein we will focus on microglia, the resident immune cells of the CNS, which modulate the production of new neurons in the adult hippocampus and are also well suited to participate in their circuit integration. Microglia may contribute to the refinement of brain circuits during development and exert a role in physiological and pathological conditions by regulating axonal and dendritic growth; promoting the formation, elimination, and relocation of synapses; modulating excitatory synaptic maturation; and participating in functional synaptic plasticity. Importantly, microglia are able to sense subtle changes in their environment and may use this information to differently modulate hippocampal wiring, ultimately impacting on memory function. Deciphering the role of microglia in hippocampal circuitry constant rewiring will help to better understand the influence of microglia on memory function.https://www.frontiersin.org/article/10.3389/fcell.2019.00024/fulladult hippocampal neurogenesishippocampal circuitmemorymicrogliarewiring
spellingShingle Noelia Rodríguez-Iglesias
Noelia Rodríguez-Iglesias
Amanda Sierra
Amanda Sierra
Amanda Sierra
Jorge Valero
Jorge Valero
Jorge Valero
Rewiring of Memory Circuits: Connecting Adult Newborn Neurons With the Help of Microglia
Frontiers in Cell and Developmental Biology
adult hippocampal neurogenesis
hippocampal circuit
memory
microglia
rewiring
title Rewiring of Memory Circuits: Connecting Adult Newborn Neurons With the Help of Microglia
title_full Rewiring of Memory Circuits: Connecting Adult Newborn Neurons With the Help of Microglia
title_fullStr Rewiring of Memory Circuits: Connecting Adult Newborn Neurons With the Help of Microglia
title_full_unstemmed Rewiring of Memory Circuits: Connecting Adult Newborn Neurons With the Help of Microglia
title_short Rewiring of Memory Circuits: Connecting Adult Newborn Neurons With the Help of Microglia
title_sort rewiring of memory circuits connecting adult newborn neurons with the help of microglia
topic adult hippocampal neurogenesis
hippocampal circuit
memory
microglia
rewiring
url https://www.frontiersin.org/article/10.3389/fcell.2019.00024/full
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