PMID- 16474157 OWN - NLM STAT- MEDLINE DCOM- 20060317 LR - 20181113 IS - 0022-538X (Print) IS - 1098-5514 (Electronic) IS - 0022-538X (Linking) VI - 80 IP - 5 DP - 2006 Mar TI - Preferential infection of mature dendritic cells by mouse hepatitis virus strain JHM. PG - 2506-14 AB - Mouse hepatitis virus strain JHM (MHV-JHM) causes acute encephalitis and acute and chronic demyelinating diseases in mice. Dendritic cells (DCs) are key cells in the initiation of innate and adaptive immune responses, and infection of these cells could potentially contribute to a dysregulated immune response; consistent with this, recent results suggest that DCs are readily infected by another strain of mouse hepatitis virus, the A59 strain (MHV-A59). Herein, we show that the JHM strain also productively infected DCs. Moreover, mature DCs were at least 10 times more susceptible than immature DCs to infection with MHV-JHM. DC function was impaired after MHV-JHM infection, resulting in decreased stimulation of CD8 T cells in vitro. Preferential infection of mature DCs was not due to differential expression of the MHV-JHM receptor CEACAM-1a on mature or immature cells or to differences in apoptosis. Although we could not detect infected DCs in vivo, both CD8(+) and CD11b(+) splenic DCs were susceptible to infection with MHV-JHM directly ex vivo. This preferential infection of mature DCs may inhibit the development of an efficient immune response to the virus. FAU - Zhou, Haixia AU - Zhou H AD - Department of Pediatrics, University of Iowa, Iowa City, 52242, USA. FAU - Perlman, Stanley AU - Perlman S LA - eng GR - R01 NS036592/NS/NINDS NIH HHS/United States GR - R01 NS36592/NS/NINDS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - J Virol JT - Journal of virology JID - 0113724 RN - 0 (Carcinoembryonic Antigen) RN - 0 (Ceacam1 protein, mouse) RN - 0 (Receptors, Virus) RN - 147336-22-9 (Green Fluorescent Proteins) SB - IM MH - Animals MH - Apoptosis MH - CD8-Positive T-Lymphocytes/immunology MH - Carcinoembryonic Antigen/analysis MH - Coronavirus Infections/*immunology/*pathology/virology MH - Dendritic Cells/*immunology/*virology MH - Disease Models, Animal MH - Flow Cytometry MH - Genes, Reporter MH - Green Fluorescent Proteins/analysis/genetics MH - Mice MH - Mice, Inbred C57BL MH - Murine hepatitis virus/*growth & development MH - Receptors, Virus/analysis PMC - PMC1395395 EDAT- 2006/02/14 09:00 MHDA- 2006/03/18 09:00 PMCR- 2006/07/01 CRDT- 2006/02/14 09:00 PHST- 2006/02/14 09:00 [pubmed] PHST- 2006/03/18 09:00 [medline] PHST- 2006/02/14 09:00 [entrez] PHST- 2006/07/01 00:00 [pmc-release] AID - 80/5/2506 [pii] AID - 1969-05 [pii] AID - 10.1128/JVI.80.5.2506-2514.2006 [doi] PST - ppublish SO - J Virol. 2006 Mar;80(5):2506-14. doi: 10.1128/JVI.80.5.2506-2514.2006.