Murine cytomegalovirus induces a Sjogren's syndrome-like disease in C57B1/6-lpr/lpr mice

Fleck, Martin and Kern, Earl R. and Zhou, Tong and Lang, Bernhard and Mountz, John D. (1998) Murine cytomegalovirus induces a Sjogren's syndrome-like disease in C57B1/6-lpr/lpr mice. ARTHRITIS AND RHEUMATISM, 41 (12). pp. 2175-2184. ISSN 0004-3591, 1529-0131

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Abstract

Objective. To analyze Fas and tumor necrosis factor receptor I (TNFRI) apoptosis pathways in salivary gland inflammatory disease induced by murine cytomegalovirus (MCMV) infection. Methods. Four different strains of mice (C57Bl/6 [B6]-+/+, Fas-deficient B6-lpr/lpr, TNFRI-deficient B6-tnfr1(0/0), and B6-tnfr1(0/0)-lpr/lpr mice) were infected intraperitoneally with the Smith strain of MCMV (1 x 10(5) plaque-forming units). Viral load was determined by a plaque assay, inflammation and apoptosis by immunohistochemistry and staining with terminal dUTP nick-end labeling, and autoantibodies by enzyme-linked immunosorbent assay. Results. Infectious MCMV was not detectable by day 100, Although all MCMV-infected mice developed acute sialadenitis by day 28, a chronic (>100 days), severe salivary gland inflammation and anti-Re and anti-La antibodies developed only in the B6-lpr/lpr mice. Apoptotic cells were detected during the acute, but not the chronic, phase of inflammation. Conclusion. Both Fas- and TNFRI-mediated apoptosis contribute to the clearance of MCMV-infected cells in the salivary glands. However, because Fas-mediated apoptosis is necessary for the downmodulation of the immune response, a defect in this process can lead to a postinfection, chronic inflammatory response that resembles Sjogren's syndrome.

Item Type: Article
Uncontrolled Keywords: EPSTEIN-BARR-VIRUS; LABIAL SALIVARY-GLANDS; LIVER-DISEASE; LPR MICE; T-CELLS; APOPTOSIS; SIALADENITIS; EXPRESSION; INFECTION; BCL-2;
Subjects: 600 Technology > 610 Medical sciences Medicine
Divisions: Medicine > Lehrstuhl für Innere Medizin I
Depositing User: Dr. Gernot Deinzer
Date Deposited: 21 Feb 2023 06:37
Last Modified: 21 Feb 2023 06:37
URI: https://pred.uni-regensburg.de/id/eprint/49274

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