Regulation of Adult Mammalian Neural Stem Cells and Neurogenesis by Cell Extrinsic and Intrinsic Factors

Tissue-specific stem cells give rise to new functional cells to maintain tissue homeostasis and restore damaged tissue after injury. To ensure proper brain functions in the adult brain, neural stem cells (NSCs) continuously generate newborn neurons that integrate into pre-existing neuronal networks....

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Main Authors: Shuzo Matsubara, Taito Matsuda, Kinichi Nakashima
Format: Article
Language:English
Published: MDPI AG 2021-05-01
Series:Cells
Subjects:
Online Access:https://www.mdpi.com/2073-4409/10/5/1145
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author Shuzo Matsubara
Taito Matsuda
Kinichi Nakashima
author_facet Shuzo Matsubara
Taito Matsuda
Kinichi Nakashima
author_sort Shuzo Matsubara
collection DOAJ
description Tissue-specific stem cells give rise to new functional cells to maintain tissue homeostasis and restore damaged tissue after injury. To ensure proper brain functions in the adult brain, neural stem cells (NSCs) continuously generate newborn neurons that integrate into pre-existing neuronal networks. Proliferation, as well as neurogenesis of NSCs, are exquisitely controlled by extrinsic and intrinsic factors, and their underlying mechanisms have been extensively studied with the goal of enhancing the neurogenic capacity of NSCs for regenerative medicine. However, neurogenesis of endogenous NSCs alone is insufficient to completely repair brains damaged by neurodegenerative diseases and/or injury because neurogenic areas are limited and few neurons are produced in the adult brain. An innovative approach towards replacing damaged neurons is to induce conversion of non-neuronal cells residing in injured sites into neurons by a process referred to as direct reprogramming. This review describes extrinsic and intrinsic factors controlling NSCs and neurogenesis in the adult brain and discusses prospects for their applications. It also describes direct neuronal reprogramming technology holding promise for future clinical applications.
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spelling doaj.art-28334d1737b5416ba8091829dccbe6312023-11-21T18:58:28ZengMDPI AGCells2073-44092021-05-01105114510.3390/cells10051145Regulation of Adult Mammalian Neural Stem Cells and Neurogenesis by Cell Extrinsic and Intrinsic FactorsShuzo Matsubara0Taito Matsuda1Kinichi Nakashima2Department of Stem Cell Biology and Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku 812-8582, Fukuoka, JapanDepartment of Stem Cell Biology and Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku 812-8582, Fukuoka, JapanDepartment of Stem Cell Biology and Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku 812-8582, Fukuoka, JapanTissue-specific stem cells give rise to new functional cells to maintain tissue homeostasis and restore damaged tissue after injury. To ensure proper brain functions in the adult brain, neural stem cells (NSCs) continuously generate newborn neurons that integrate into pre-existing neuronal networks. Proliferation, as well as neurogenesis of NSCs, are exquisitely controlled by extrinsic and intrinsic factors, and their underlying mechanisms have been extensively studied with the goal of enhancing the neurogenic capacity of NSCs for regenerative medicine. However, neurogenesis of endogenous NSCs alone is insufficient to completely repair brains damaged by neurodegenerative diseases and/or injury because neurogenic areas are limited and few neurons are produced in the adult brain. An innovative approach towards replacing damaged neurons is to induce conversion of non-neuronal cells residing in injured sites into neurons by a process referred to as direct reprogramming. This review describes extrinsic and intrinsic factors controlling NSCs and neurogenesis in the adult brain and discusses prospects for their applications. It also describes direct neuronal reprogramming technology holding promise for future clinical applications.https://www.mdpi.com/2073-4409/10/5/1145neurogenesisneural stem cellsdirect reprogrammingneurodegenerative diseasesinjuryneurons
spellingShingle Shuzo Matsubara
Taito Matsuda
Kinichi Nakashima
Regulation of Adult Mammalian Neural Stem Cells and Neurogenesis by Cell Extrinsic and Intrinsic Factors
Cells
neurogenesis
neural stem cells
direct reprogramming
neurodegenerative diseases
injury
neurons
title Regulation of Adult Mammalian Neural Stem Cells and Neurogenesis by Cell Extrinsic and Intrinsic Factors
title_full Regulation of Adult Mammalian Neural Stem Cells and Neurogenesis by Cell Extrinsic and Intrinsic Factors
title_fullStr Regulation of Adult Mammalian Neural Stem Cells and Neurogenesis by Cell Extrinsic and Intrinsic Factors
title_full_unstemmed Regulation of Adult Mammalian Neural Stem Cells and Neurogenesis by Cell Extrinsic and Intrinsic Factors
title_short Regulation of Adult Mammalian Neural Stem Cells and Neurogenesis by Cell Extrinsic and Intrinsic Factors
title_sort regulation of adult mammalian neural stem cells and neurogenesis by cell extrinsic and intrinsic factors
topic neurogenesis
neural stem cells
direct reprogramming
neurodegenerative diseases
injury
neurons
url https://www.mdpi.com/2073-4409/10/5/1145
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AT kinichinakashima regulationofadultmammalianneuralstemcellsandneurogenesisbycellextrinsicandintrinsicfactors