Immune Regulation of Adult Neurogenic Niches in Health and Disease

Microglia regulate neuronal development during embryogenesis, postnatal development, and in specialized microenvironments of the adult brain. Recent evidence demonstrates that in adulthood, microglia secrete factors which modulate adult hippocampal neurogenesis by inhibiting cell proliferation and s...

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Main Authors: Sana Chintamen, Fatima Imessadouene, Steven G. Kernie
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-01-01
Series:Frontiers in Cellular Neuroscience
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fncel.2020.571071/full
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author Sana Chintamen
Sana Chintamen
Fatima Imessadouene
Steven G. Kernie
author_facet Sana Chintamen
Sana Chintamen
Fatima Imessadouene
Steven G. Kernie
author_sort Sana Chintamen
collection DOAJ
description Microglia regulate neuronal development during embryogenesis, postnatal development, and in specialized microenvironments of the adult brain. Recent evidence demonstrates that in adulthood, microglia secrete factors which modulate adult hippocampal neurogenesis by inhibiting cell proliferation and survival both in vitro and in vivo, maintaining a balance between cell division and cell death in neurogenic niches. These resident immune cells also shape the nervous system by actively pruning synapses during critical periods of learning and engulfing excess neurons. In neurodegenerative diseases, aberrant microglial activity can impede the proper formation and prevent the development of appropriate functional properties of adult born granule cells. Ablating microglia has been presented as a promising therapeutic approach to alleviate the brain of maladaptive immune response. Here, we review key mechanisms through which the immune system actively shapes neurogenic niches throughout the lifespan of the mammalian brain in both health and disease. We discuss how interactions between immune cells and developing neurons may be leveraged for pharmacological intervention and as a means to preserve adult neurogenesis.
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spelling doaj.art-9d4a706a29934f3bbd0d04d41f84e23b2022-12-21T19:00:53ZengFrontiers Media S.A.Frontiers in Cellular Neuroscience1662-51022021-01-011410.3389/fncel.2020.571071571071Immune Regulation of Adult Neurogenic Niches in Health and DiseaseSana Chintamen0Sana Chintamen1Fatima Imessadouene2Steven G. Kernie3Neurobiology and Behavior, Columbia University Irving Medical Center, New York, NY, United StatesDepartment of Pediatrics, Columbia University Irving Fefere Medical Center, New York, NY, United StatesDepartment of Pediatrics, Columbia University Irving Fefere Medical Center, New York, NY, United StatesDepartment of Pediatrics, Columbia University Irving Fefere Medical Center, New York, NY, United StatesMicroglia regulate neuronal development during embryogenesis, postnatal development, and in specialized microenvironments of the adult brain. Recent evidence demonstrates that in adulthood, microglia secrete factors which modulate adult hippocampal neurogenesis by inhibiting cell proliferation and survival both in vitro and in vivo, maintaining a balance between cell division and cell death in neurogenic niches. These resident immune cells also shape the nervous system by actively pruning synapses during critical periods of learning and engulfing excess neurons. In neurodegenerative diseases, aberrant microglial activity can impede the proper formation and prevent the development of appropriate functional properties of adult born granule cells. Ablating microglia has been presented as a promising therapeutic approach to alleviate the brain of maladaptive immune response. Here, we review key mechanisms through which the immune system actively shapes neurogenic niches throughout the lifespan of the mammalian brain in both health and disease. We discuss how interactions between immune cells and developing neurons may be leveraged for pharmacological intervention and as a means to preserve adult neurogenesis.https://www.frontiersin.org/articles/10.3389/fncel.2020.571071/fullneurogenesismicrogliadevelopmentinflammationneurodegenerationcytokine
spellingShingle Sana Chintamen
Sana Chintamen
Fatima Imessadouene
Steven G. Kernie
Immune Regulation of Adult Neurogenic Niches in Health and Disease
Frontiers in Cellular Neuroscience
neurogenesis
microglia
development
inflammation
neurodegeneration
cytokine
title Immune Regulation of Adult Neurogenic Niches in Health and Disease
title_full Immune Regulation of Adult Neurogenic Niches in Health and Disease
title_fullStr Immune Regulation of Adult Neurogenic Niches in Health and Disease
title_full_unstemmed Immune Regulation of Adult Neurogenic Niches in Health and Disease
title_short Immune Regulation of Adult Neurogenic Niches in Health and Disease
title_sort immune regulation of adult neurogenic niches in health and disease
topic neurogenesis
microglia
development
inflammation
neurodegeneration
cytokine
url https://www.frontiersin.org/articles/10.3389/fncel.2020.571071/full
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