TY - JOUR A1 - Holdener, Martin A1 - Hintermann, Edith A1 - Bayer, Monika A1 - Rhode, Antje A1 - Rodrigo, Evelyn A1 - Hintereder, Gudrun A1 - Johnson, Eric F. A1 - Gonzalez, Frank J. A1 - Pfeilschifter, Josef A1 - Manns, Michael P. A1 - Herrath, Matthias G. von A1 - Christen, Urs T1 - Breaking tolerance to the natural human liver autoantigen cytochrome P450 2D6 by virus infection T2 - Journal of experimental medicine N2 - Autoimmune liver diseases, such as autoimmune hepatitis (AIH) and primary biliary cirrhosis, often have severe consequences for the patient. Because of a lack of appropriate animal models, not much is known about their potential viral etiology. Infection by liver-tropic viruses is one possibility for the breakdown of self-tolerance. Therefore, we infected mice with adenovirus Ad5 expressing human cytochrome P450 2D6 (Ad-2D6). Ad-2D6–infected mice developed persistent autoimmune liver disease, apparent by cellular infiltration, hepatic fibrosis, “fused” liver lobules, and necrosis. Similar to type 2 AIH patients, Ad-2D6–infected mice generated type 1 liver kidney microsomal–like antibodies recognizing the immunodominant epitope WDPAQPPRD of cytochrome P450 2D6 (CYP2D6). Interestingly, Ad-2D6–infected wild-type FVB/N mice displayed exacerbated liver damage when compared with transgenic mice expressing the identical human CYP2D6 protein in the liver, indicating the presence of a stronger immunological tolerance in CYP2D6 mice. We demonstrate for the first time that infection with a virus expressing a natural human autoantigen breaks tolerance, resulting in a chronic form of severe, autoimmune liver damage. Our novel model system should be instrumental for studying mechanisms involved in the initiation, propagation, and precipitation of virus-induced autoimmune liver diseases. Y1 - 2008 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/6767 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30-68430 SN - 1540-9538 SN - 1540-9358 SN - 0022-1007 N1 - This article is distributed under the terms of an Attribution–Noncommercial–Share Alike–No Mirror Sites license for the first six months after the publication date (see http://www.jgp.org/misc/terms.shtml). After six months it is available under a Creative Commons License (Attribution–Noncommercial–Share Alike 3.0 Unported license, as described at http://creativecommons.org/licenses/by-nc-sa/3.0/). VL - 205 IS - 6, Art. 1409 SP - 1409 EP - 1422 PB - Rockefeller Univ. Press CY - New York, NY ER -