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A human endogenous retroviral superantigen as candidate autoimmune gene in type I diabetes.


Conrad, B; Weissmahr, R N; Böni, J; Arcari, R; Schüpbach, J; Mach, B (1997). A human endogenous retroviral superantigen as candidate autoimmune gene in type I diabetes. Cell, 90(2):303-313.

Abstract

Microbial superantigens (SAGs) have been implicated in the pathogenesis of human autoimmune diseases. Preferential expansion of the Vveta7 T cell receptor positive T cell subset in patients suffering from acute-onset type I diabetes has indicated the presence of a surface membrane-bound SAG. Here, we have isolated a novel mouse mammary tumor virus-related human endogenous retrovirus. We further show that the N-terminal moiety of the envelope gene encodes an MHC class II-dependent SAG. We propose that expression of this SAG, induced in extrapancreatic and professional antigen-presenting cells, leads to beta-cell destruction via the systemic activation of autoreactive T cells. The SAG encoded by this novel retrovirus thus constitutes a candidate autoimmune gene in type I diabetes.

Abstract

Microbial superantigens (SAGs) have been implicated in the pathogenesis of human autoimmune diseases. Preferential expansion of the Vveta7 T cell receptor positive T cell subset in patients suffering from acute-onset type I diabetes has indicated the presence of a surface membrane-bound SAG. Here, we have isolated a novel mouse mammary tumor virus-related human endogenous retrovirus. We further show that the N-terminal moiety of the envelope gene encodes an MHC class II-dependent SAG. We propose that expression of this SAG, induced in extrapancreatic and professional antigen-presenting cells, leads to beta-cell destruction via the systemic activation of autoreactive T cells. The SAG encoded by this novel retrovirus thus constitutes a candidate autoimmune gene in type I diabetes.

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Additional indexing

Item Type:Journal Article, refereed
Communities & Collections:04 Faculty of Medicine > Institute of Medical Virology
Dewey Decimal Classification:570 Life sciences; biology
610 Medicine & health
Language:English
Date:25 July 1997
Deposited On:11 Feb 2008 12:28
Last Modified:05 Apr 2016 12:21
Publisher:Elsevier
ISSN:0092-8674
Publisher DOI:https://doi.org/10.1016/S0092-8674(00)80338-4
PubMed ID:9244304

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