Abstract:
:Auto-reactive T cells present in healthy subjects remain in a state of unresponsiveness, but may trigger autoimmunity under various situations. Although myelin oligodendrocyte glycoprotein (MOG) is a potential target antigen in multiple sclerosis (MS), MOG-reactive T cell responses are present in the blood of both healthy subjects and MS-affected individuals. To investigate the disease-inducing potential and regulation of these autoreactive T cells in healthy outbred populations, we have characterized MOG-reactive T cell clones obtained by limiting dilution from peripheral blood of unimmunized C. jacchus marmosets. We report an extraordinarily high prevalence of circulating MOG-reactive T cells in these naive animals (2.6 +/- 1.4 / 10(5) PBMC), and a broadly diverse repertoire of epitope recognition encompassing at least three regions within the extracellular domain of MOG. Adoptive transfer of a MOG21-40-specific T cell clone resulted in mild clinical experimental allergic encephalomyelitis, characterized pathologically by rare foci of inflammation and minimal demyelination. We conclude that MOG-reactive T cells are present in healthy primates at a highly prevalent frequency, and are potentially capable of triggering central nervous system autoimmunity. Expansion of these autoreactive T cells must be tightly controlled to maintain immune homeostasis in healthy individuals.
journal_name
Eur J Immunoljournal_title
European journal of immunologyauthors
Villoslada P,Abel K,Heald N,Goertsches R,Hauser SL,Genain CPdoi
10.1002/1521-4141(2001010)31:10<2942::aid-immu2942keywords:
subject
Has Abstractpub_date
2001-10-01 00:00:00pages
2942-50issue
10eissn
0014-2980issn
1521-4141pii
10.1002/1521-4141(2001010)31:10<2942::AID-IMMU2942journal_volume
31pub_type
杂志文章abstract::The spleen is anatomically and functionally divided into two compartments: the red pulp, where particles are effectively removed from the blood, and the white pulp, where specific immune responses are generated. Here the isolation of white pulp from red pulp is described, allowing a detailed analysis of the cellular c...
journal_title:European journal of immunology
pub_type: 杂志文章
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abstract::Dendritic cells (DCs) play a key role in regulating innate and adaptive immunity. Our understanding of DC biology has benefited from studies in CD11c.DTR and CD11c.DOG mouse models that use the CD11c promoter to express a diphtheria toxin (DT) receptor transgene to inducibly deplete CD11c(+) cells. Other models to in...
journal_title:European journal of immunology
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journal_title:European journal of immunology
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journal_title:European journal of immunology
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journal_title:European journal of immunology
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journal_title:European journal of immunology
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journal_title:European journal of immunology
pub_type: 杂志文章,评审
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journal_title:European journal of immunology
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更新日期:2001-12-01 00:00:00
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journal_title:European journal of immunology
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journal_title:European journal of immunology
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journal_title:European journal of immunology
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journal_title:European journal of immunology
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journal_title:European journal of immunology
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journal_title:European journal of immunology
pub_type: 评论,杂志文章
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journal_title:European journal of immunology
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