Doxycycline increases neurogenesis and reduces microglia in the adult hippocampus

Adult hippocampal neurogenesis results in the continuous formation of new neurons and is a process of brain plasticity involved in learning and memory. Although inducible-reversible transgenic mouse models are increasingly being used to investigate adult neurogenesis, transgene control requires the...

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Main Authors: Sultan, Sebastien, Gebara, Elias, Toni, Nicolas
Format: Online
Language:English
Published: Frontiers Media S.A. 2013
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3722480/
id pubmed-3722480
recordtype oai_dc
spelling pubmed-37224802013-07-29 Doxycycline increases neurogenesis and reduces microglia in the adult hippocampus Sultan, Sebastien Gebara, Elias Toni, Nicolas Neuroscience Adult hippocampal neurogenesis results in the continuous formation of new neurons and is a process of brain plasticity involved in learning and memory. Although inducible-reversible transgenic mouse models are increasingly being used to investigate adult neurogenesis, transgene control requires the administration of an activator, doxycycline (Dox), with unknown effects on adult neurogenesis. Here, we tested the effect of Dox administration on adult neurogenesis in vivo. We found that 4 weeks of Dox treatment at doses commonly used for gene expression control, resulted in increased neurogenesis. Furthermore, the dendrites of new neurons displayed increased spine density. Concomitantly, Iba1-expressing microglia was reduced by Dox treatment. These results indicate that Dox treatment may interfere with parameters of relevance for the use of inducible transgenic mice in studies of adult neurogenesis or brain inflammation. Frontiers Media S.A. 2013-07-25 /pmc/articles/PMC3722480/ /pubmed/23898238 http://dx.doi.org/10.3389/fnins.2013.00131 Text en Copyright © 2013 Sultan, Gebara and Toni. http://creativecommons.org/licenses/by/3.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in other forums, provided the original authors and source are credited and subject to any copyright notices concerning any third-party graphics etc.
repository_type Open Access Journal
institution_category Foreign Institution
institution US National Center for Biotechnology Information
building NCBI PubMed
collection Online Access
language English
format Online
author Sultan, Sebastien
Gebara, Elias
Toni, Nicolas
spellingShingle Sultan, Sebastien
Gebara, Elias
Toni, Nicolas
Doxycycline increases neurogenesis and reduces microglia in the adult hippocampus
author_facet Sultan, Sebastien
Gebara, Elias
Toni, Nicolas
author_sort Sultan, Sebastien
title Doxycycline increases neurogenesis and reduces microglia in the adult hippocampus
title_short Doxycycline increases neurogenesis and reduces microglia in the adult hippocampus
title_full Doxycycline increases neurogenesis and reduces microglia in the adult hippocampus
title_fullStr Doxycycline increases neurogenesis and reduces microglia in the adult hippocampus
title_full_unstemmed Doxycycline increases neurogenesis and reduces microglia in the adult hippocampus
title_sort doxycycline increases neurogenesis and reduces microglia in the adult hippocampus
description Adult hippocampal neurogenesis results in the continuous formation of new neurons and is a process of brain plasticity involved in learning and memory. Although inducible-reversible transgenic mouse models are increasingly being used to investigate adult neurogenesis, transgene control requires the administration of an activator, doxycycline (Dox), with unknown effects on adult neurogenesis. Here, we tested the effect of Dox administration on adult neurogenesis in vivo. We found that 4 weeks of Dox treatment at doses commonly used for gene expression control, resulted in increased neurogenesis. Furthermore, the dendrites of new neurons displayed increased spine density. Concomitantly, Iba1-expressing microglia was reduced by Dox treatment. These results indicate that Dox treatment may interfere with parameters of relevance for the use of inducible transgenic mice in studies of adult neurogenesis or brain inflammation.
publisher Frontiers Media S.A.
publishDate 2013
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3722480/
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