Crossref journal-article
American Society for Microbiology
Journal of Virology (235)
Abstract

ABSTRACT We and others have shown that infection of dendritic cells with murine cytomegalovirus (MCMV) leads to severe functional impairment of these antigen-presenting cells (D. M. Andrews, C. E. Andoniou, F. Granucci, P. Ricciardi-Castagnoli, and M. A. Degli-Esposti, Nat. Immunol. 2: 1077-1084, 2001; S. Mathys, T. Schroeder, J. Ellwart, U. H. Koszinowski, M. Messerle, and U. Just, J. Infect. Dis. 187: 988-999, 2003). Phenotypically, reduced surface expression of costimulatory molecules and major histocompatibility complex molecules was detected. In order to identify the molecular basis for the observed effects, we generated MCMV mutants with large deletions of nonessential genes. The study was facilitated by the finding that a monocyte-macrophage cell line displayed similar phenotypic alterations after MCMV infection. By analyzing the expression of cell surface molecules on infected cells, we identified a mutant virus which is no longer able to downmodulate the expression of the costimulatory molecule CD86. Additional mutants with smaller deletions allowed us to pin down the responsible gene to a certain genomic region. RNA analysis led to the identification of the spliced gene m147.5, encoding a protein with 145 amino acids. Experiments with an m147.5 mutant revealed that the protein affects CD86 expression only, suggesting that additional MCMV genes are responsible for downmodulation of the other surface molecules. Identification of viral gene products interfering with functionally important proteins of antigen-presenting cells will provide the basis to dissect the complex interaction of CMV with these important cells and to evaluate the biological importance of these viral genes in vivo.

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Loewendorf, A., Krüger, C., Borst, E. M., Wagner, M., Just, U., & Messerle, M. (2004). Identification of a Mouse Cytomegalovirus Gene Selectively Targeting CD86 Expression on Antigen-Presenting Cells. Journal of Virology, 78(23), 13062–13071.

Authors 6
  1. Andrea Loewendorf (first)
  2. Corinna Krüger (additional)
  3. Eva Maria Borst (additional)
  4. Markus Wagner (additional)
  5. Ursula Just (additional)
  6. Martin Messerle (additional)
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Dates
Type When
Created 20 years, 9 months ago (Nov. 12, 2004, 3:29 p.m.)
Deposited 3 years, 5 months ago (March 5, 2022, 3:55 a.m.)
Indexed 5 months ago (March 31, 2025, 6:25 p.m.)
Issued 20 years, 9 months ago (Dec. 1, 2004)
Published 20 years, 9 months ago (Dec. 1, 2004)
Published Print 20 years, 9 months ago (Dec. 1, 2004)
Funders 0

None

@article{Loewendorf_2004, title={Identification of a Mouse Cytomegalovirus Gene Selectively Targeting CD86 Expression on Antigen-Presenting Cells}, volume={78}, ISSN={1098-5514}, url={http://dx.doi.org/10.1128/jvi.78.23.13062-13071.2004}, DOI={10.1128/jvi.78.23.13062-13071.2004}, number={23}, journal={Journal of Virology}, publisher={American Society for Microbiology}, author={Loewendorf, Andrea and Krüger, Corinna and Borst, Eva Maria and Wagner, Markus and Just, Ursula and Messerle, Martin}, year={2004}, month=dec, pages={13062–13071} }