Oxygen, a key factor regulating cell behaviour during neurogenesis and cerebral diseases

Oxygen is vital to maintain the normal functions of alomost all the organs, especially for brain which is one of the heaviest oxygen consumers in the body. The important roles of oxygen on the brain are not only reflected in the development, but also showed in the pathological processes of many cere...

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Main Authors: Kuan eZhang, Lingling eZhu, Ming eFan
Format: Article
Language:English
Published: Frontiers Media S.A. 2011-04-01
Series:Frontiers in Molecular Neuroscience
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fnmol.2011.00005/full
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author Kuan eZhang
Lingling eZhu
Ming eFan
author_facet Kuan eZhang
Lingling eZhu
Ming eFan
author_sort Kuan eZhang
collection DOAJ
description Oxygen is vital to maintain the normal functions of alomost all the organs, especially for brain which is one of the heaviest oxygen consumers in the body. The important roles of oxygen on the brain are not only reflected in the development, but also showed in the pathological processes of many cerebral diseases. In the current review, we summarized the oxygen levels in brain tissues tested by real-time measurements during the embryonic and adult neurogenesis, the cerebral diseases or in the hyperbaric/hypobaric oxygen environment. Oxygen concentration is low in fetal brain (0.01%- 1%) and in adult brain (1.5%-7%), decreased during stroke, and increased in hyperbaric oxygen environment. In addition, we reviewed the effects of oxygen tensions on the behaviors of neural stem cells (NSCs) in vitro cultures at different oxygen concentration (2%-20%) and in vivo niche during different pathological states and in hyperbaric/hypobaric oxygen environment. Moderate hypoxia (3%-10%) is known can promote the proliferation of NSCs and enhance the differentiation of NSCs into the TH-positive neurons. Next, we briefly presented the oxygen-sensitive molecular mechanisms regulating NSCs proliferation and differentiation recently found including the Notch, BMP and Wnt pathways. Finally, the future perspectives about the roles of oxygen on brain and NSCs were given.
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spelling doaj.art-4a54a6be602c461c83215c44b51d30ae2022-12-21T18:50:58ZengFrontiers Media S.A.Frontiers in Molecular Neuroscience1662-50992011-04-01410.3389/fnmol.2011.000059784Oxygen, a key factor regulating cell behaviour during neurogenesis and cerebral diseasesKuan eZhang0Lingling eZhu1Ming eFan2Institute of Basic Medical SciencesInstitute of Basic Medical SciencesInstitute of Basic Medical SciencesOxygen is vital to maintain the normal functions of alomost all the organs, especially for brain which is one of the heaviest oxygen consumers in the body. The important roles of oxygen on the brain are not only reflected in the development, but also showed in the pathological processes of many cerebral diseases. In the current review, we summarized the oxygen levels in brain tissues tested by real-time measurements during the embryonic and adult neurogenesis, the cerebral diseases or in the hyperbaric/hypobaric oxygen environment. Oxygen concentration is low in fetal brain (0.01%- 1%) and in adult brain (1.5%-7%), decreased during stroke, and increased in hyperbaric oxygen environment. In addition, we reviewed the effects of oxygen tensions on the behaviors of neural stem cells (NSCs) in vitro cultures at different oxygen concentration (2%-20%) and in vivo niche during different pathological states and in hyperbaric/hypobaric oxygen environment. Moderate hypoxia (3%-10%) is known can promote the proliferation of NSCs and enhance the differentiation of NSCs into the TH-positive neurons. Next, we briefly presented the oxygen-sensitive molecular mechanisms regulating NSCs proliferation and differentiation recently found including the Notch, BMP and Wnt pathways. Finally, the future perspectives about the roles of oxygen on brain and NSCs were given.http://journal.frontiersin.org/Journal/10.3389/fnmol.2011.00005/fullNeurogenesisOxygencerebral diseaseshyperbaric oxygenhypobaric hypoxia
spellingShingle Kuan eZhang
Lingling eZhu
Ming eFan
Oxygen, a key factor regulating cell behaviour during neurogenesis and cerebral diseases
Frontiers in Molecular Neuroscience
Neurogenesis
Oxygen
cerebral diseases
hyperbaric oxygen
hypobaric hypoxia
title Oxygen, a key factor regulating cell behaviour during neurogenesis and cerebral diseases
title_full Oxygen, a key factor regulating cell behaviour during neurogenesis and cerebral diseases
title_fullStr Oxygen, a key factor regulating cell behaviour during neurogenesis and cerebral diseases
title_full_unstemmed Oxygen, a key factor regulating cell behaviour during neurogenesis and cerebral diseases
title_short Oxygen, a key factor regulating cell behaviour during neurogenesis and cerebral diseases
title_sort oxygen a key factor regulating cell behaviour during neurogenesis and cerebral diseases
topic Neurogenesis
Oxygen
cerebral diseases
hyperbaric oxygen
hypobaric hypoxia
url http://journal.frontiersin.org/Journal/10.3389/fnmol.2011.00005/full
work_keys_str_mv AT kuanezhang oxygenakeyfactorregulatingcellbehaviourduringneurogenesisandcerebraldiseases
AT linglingezhu oxygenakeyfactorregulatingcellbehaviourduringneurogenesisandcerebraldiseases
AT mingefan oxygenakeyfactorregulatingcellbehaviourduringneurogenesisandcerebraldiseases