Abstract:
:Infection and inflammation of the male reproductive tract are relevant causes of infertility. Inflammatory damage occurs in the special immunosuppressive microenvironment of the testis, a hallmark termed testicular immune privilege, which allows tolerance to neo-antigens from developing germ cells appearing at puberty, long after the establishment of systemic immune tolerance. Experimental autoimmune orchitis (EAO) is a well-established rodent model of chronic testicular inflammation and organ specific autoimmunity that offers a valuable in vivo tool to investigate the pathological and molecular mechanisms leading to the breakdown of the testicular immune privilege. The disease is characterized by the infiltration of the interstitium by immune cells (mainly macrophages, dendritic cells, and T cells), formation of autoantibodies against testicular antigens, production of pro-inflammatory mediators such as NO, MCP1, TNFα, IL6, or activins and dysregulation of steroidogenesis with reduced levels of serum testosterone. EAO leads to sloughing of germ cells, atrophic seminiferous tubules and fibrotic remodeling, parameters all found similarly to changes in human biopsies from infertile patients with inflammatory infiltrates. Interestingly, testosterone supplementation during the course of EAO leads to expansion of the regulatory T cell population and inhibition of disease development. Knowledge of EAO pathogenesis aims to contribute to a better understanding of human testicular autoimmune disease as an essential prerequisite for improved diagnosis and treatment.
journal_name
Front Immunoljournal_title
Frontiers in immunologyauthors
Lustig L,Guazzone VA,Theas MS,Pleuger C,Jacobo P,Pérez CV,Meinhardt A,Fijak Mdoi
10.3389/fimmu.2020.583135subject
Has Abstractpub_date
2020-09-25 00:00:00pages
583135issn
1664-3224journal_volume
11pub_type
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journal_title:Frontiers in immunology
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abstract::Mesenchymal stromal cells (MSCs) exert immunosuppressive effects on immune cells including dendritic cells (DCs). However, many details of the bidirectional interaction of MSCs with DCs are still unsolved and information on key molecules by which DCs can modulate MSC functions is limited. Here, we report that osteopon...
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abstract::Background: We report here two new familial cases of associated del15q11 and del7p22, with the latter underlining the clinical variability of this deletion. Two siblings patients presented a similar familial imbalanced translocation, originating from a balanced maternal translocation, with deletions of 7p22 and of 15q...
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abstract::Dendritic cells (DC), master antigen-presenting cells that orchestrate interactions between the adaptive and innate immune arms, are increasingly utilized in cancer immunotherapy. Despite remarkable progress in our understanding of DC immunobiology, as well as several encouraging clinical applications - such as DC-bas...
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pub_type: 杂志文章,评审
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pub_type: 杂志文章,评审
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journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2018.02539
更新日期:2018-11-14 00:00:00
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journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2019.02116
更新日期:2019-09-06 00:00:00
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journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
doi:10.3389/fimmu.2013.00406
更新日期:2013-11-25 00:00:00
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pub_type: 杂志文章
doi:10.3389/fimmu.2018.02294
更新日期:2018-10-04 00:00:00
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journal_title:Frontiers in immunology
pub_type: 杂志文章
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更新日期:2019-06-18 00:00:00
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journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
doi:10.3389/fimmu.2018.02722
更新日期:2018-11-28 00:00:00
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journal_title:Frontiers in immunology
pub_type: 杂志文章
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abstract::Pregnancy comprises a unique immunological condition, to allow fetal development and to protect the host from pathogenic infections. Viral infections during pregnancy can disrupt immunological tolerance and may generate deleterious effects on the fetus. Despite these possible links between pregnancy and infection-indu...
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pub_type: 杂志文章,评审
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journal_title:Frontiers in immunology
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journal_title:Frontiers in immunology
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pub_type: 杂志文章
doi:10.3389/fimmu.2020.562564
更新日期:2020-09-23 00:00:00