Sexual dimorphism in immune response genes as a function of puberty

<p>Abstract</p> <p>Background</p> <p>Autoimmune diseases are more prevalent in females than in males, whereas males have higher mortality associated with infectious diseases. To increase our understanding of this sexual dimorphism in the immune system, we sought to iden...

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Main Authors: Rosen Antony, Cohen Phillip, Chae Jae, Agarwal Rajeev, Hall John C, Davis Adrian, Rawat Rashmi, Zhao Po, Lamason Rebecca, Hoffman Eric P, Nagaraju Kanneboyina
Format: Article
Language:English
Published: BMC 2006-02-01
Series:BMC Immunology
Online Access:http://www.biomedcentral.com/1471-2172/7/2
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author Rosen Antony
Cohen Phillip
Chae Jae
Agarwal Rajeev
Hall John C
Davis Adrian
Rawat Rashmi
Zhao Po
Lamason Rebecca
Hoffman Eric P
Nagaraju Kanneboyina
author_facet Rosen Antony
Cohen Phillip
Chae Jae
Agarwal Rajeev
Hall John C
Davis Adrian
Rawat Rashmi
Zhao Po
Lamason Rebecca
Hoffman Eric P
Nagaraju Kanneboyina
author_sort Rosen Antony
collection DOAJ
description <p>Abstract</p> <p>Background</p> <p>Autoimmune diseases are more prevalent in females than in males, whereas males have higher mortality associated with infectious diseases. To increase our understanding of this sexual dimorphism in the immune system, we sought to identify and characterize inherent differences in immune response programs in the spleens of male and female mice before, during and after puberty.</p> <p>Results</p> <p>After the onset of puberty, female mice showed a higher expression of adaptive immune response genes, while males had a higher expression of innate immune genes. This result suggested a requirement for sex hormones. Using <it>in vivo </it>and <it>in vitro </it>assays in normal and mutant mouse strains, we found that reverse signaling through FasL was directly influenced by estrogen, with downstream consequences of increased CD8<sup>+ </sup>T cell-derived B cell help (via cytokines) and enhanced immunoglobulin production.</p> <p>Conclusion</p> <p>These results demonstrate that sexual dimorphism in innate and adaptive immune genes is dependent on puberty. This study also revealed that estrogen influences immunoglobulin levels in post-pubertal female mice via the Fas-FasL pathway.</p>
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spelling doaj.art-6fc337f0b6a5454fbf04cc2ca66cf6132022-12-22T00:56:04ZengBMCBMC Immunology1471-21722006-02-0171210.1186/1471-2172-7-2Sexual dimorphism in immune response genes as a function of pubertyRosen AntonyCohen PhillipChae JaeAgarwal RajeevHall John CDavis AdrianRawat RashmiZhao PoLamason RebeccaHoffman Eric PNagaraju Kanneboyina<p>Abstract</p> <p>Background</p> <p>Autoimmune diseases are more prevalent in females than in males, whereas males have higher mortality associated with infectious diseases. To increase our understanding of this sexual dimorphism in the immune system, we sought to identify and characterize inherent differences in immune response programs in the spleens of male and female mice before, during and after puberty.</p> <p>Results</p> <p>After the onset of puberty, female mice showed a higher expression of adaptive immune response genes, while males had a higher expression of innate immune genes. This result suggested a requirement for sex hormones. Using <it>in vivo </it>and <it>in vitro </it>assays in normal and mutant mouse strains, we found that reverse signaling through FasL was directly influenced by estrogen, with downstream consequences of increased CD8<sup>+ </sup>T cell-derived B cell help (via cytokines) and enhanced immunoglobulin production.</p> <p>Conclusion</p> <p>These results demonstrate that sexual dimorphism in innate and adaptive immune genes is dependent on puberty. This study also revealed that estrogen influences immunoglobulin levels in post-pubertal female mice via the Fas-FasL pathway.</p>http://www.biomedcentral.com/1471-2172/7/2
spellingShingle Rosen Antony
Cohen Phillip
Chae Jae
Agarwal Rajeev
Hall John C
Davis Adrian
Rawat Rashmi
Zhao Po
Lamason Rebecca
Hoffman Eric P
Nagaraju Kanneboyina
Sexual dimorphism in immune response genes as a function of puberty
BMC Immunology
title Sexual dimorphism in immune response genes as a function of puberty
title_full Sexual dimorphism in immune response genes as a function of puberty
title_fullStr Sexual dimorphism in immune response genes as a function of puberty
title_full_unstemmed Sexual dimorphism in immune response genes as a function of puberty
title_short Sexual dimorphism in immune response genes as a function of puberty
title_sort sexual dimorphism in immune response genes as a function of puberty
url http://www.biomedcentral.com/1471-2172/7/2
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