PMID- 12368315 OWN - NLM STAT- MEDLINE DCOM- 20021126 LR - 20191210 IS - 0022-538X (Print) IS - 1098-5514 (Electronic) IS - 0022-538X (Linking) VI - 76 IP - 21 DP - 2002 Nov TI - Hantavirus infection of dendritic cells. PG - 10724-33 AB - Dendritic cells (DCs) play a pivotal role as antigen-presenting cells in the antiviral immune response. Here we show that Hantaan virus (HTNV), which belongs to the Bunyaviridae family (genus Hantavirus) and causes hemorrhagic fever with renal syndrome, productively infects human DCs in vitro. In the course of HTNV infection, DCs did not show any cytopathic effect and viral replication did not induce cell lysis or apoptosis. Furthermore, HTNV did not affect apoptosis-inducing signals that are important for the homeostatic control of mature DCs. In contrast to immunosuppressive viruses, e.g., human cytomegalovirus, HTNV activated immature DCs, resulting in upregulation of major histocompatibility complex (MHC), costimulatory, and adhesion molecules. Intriguingly, strong upregulation of MHC class I molecules and an increased intercellular cell adhesion molecule type 1 expression was also detected on HTNV-infected endothelial cells. In addition, antigen uptake by HTNV-infected DCs was reduced, another characteristic feature of DC maturation. Consistent with these findings, we observed that HTNV-infected DCs stimulated T cells as efficiently as did mature DCs. Finally, infection of DCs with HTNV induced the release of the proinflammatory cytokines tumor necrosis factor alpha and alpha interferon. Taken together, our findings indicate that hantavirus-infected DCs may significantly contribute to hantavirus-associated pathogenesis. FAU - Raftery, Martin J AU - Raftery MJ AD - Institute of Virology, Charite Medical School, Humboldt University Berlin, D-10098 Berlin, Germany. FAU - Kraus, Annette A AU - Kraus AA FAU - Ulrich, Rainer AU - Ulrich R FAU - Kruger, Detlev H AU - Kruger DH FAU - Schonrich, Gunther AU - Schonrich G LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Virol JT - Journal of virology JID - 0113724 RN - 0 (Antigens, CD) RN - 0 (B7-1 Antigen) RN - 0 (B7-2 Antigen) RN - 0 (CD40 Antigens) RN - 0 (CD86 protein, human) RN - 0 (Histocompatibility Antigens Class I) RN - 0 (Membrane Glycoproteins) RN - 0 (Tumor Necrosis Factor-alpha) RN - 126547-89-5 (Intercellular Adhesion Molecule-1) RN - 187348-17-0 (Interleukin-12) RN - 82115-62-6 (Interferon-gamma) SB - IM MH - Animals MH - Antigens, CD/biosynthesis MH - B7-1 Antigen/biosynthesis MH - B7-2 Antigen MH - CD40 Antigens/biosynthesis MH - Cell Line MH - Chlorocebus aethiops MH - Dendritic Cells/*immunology/virology MH - Hantaan virus/*immunology MH - Histocompatibility Antigens Class I/biosynthesis MH - Humans MH - Intercellular Adhesion Molecule-1/biosynthesis MH - Interferon-gamma/metabolism MH - Interleukin-12/metabolism MH - Membrane Glycoproteins/biosynthesis MH - Tumor Necrosis Factor-alpha/metabolism MH - Up-Regulation MH - Vero Cells PMC - PMC136604 EDAT- 2002/10/09 04:00 MHDA- 2002/11/28 04:00 PMCR- 2002/11/01 CRDT- 2002/10/09 04:00 PHST- 2002/10/09 04:00 [pubmed] PHST- 2002/11/28 04:00 [medline] PHST- 2002/10/09 04:00 [entrez] PHST- 2002/11/01 00:00 [pmc-release] AID - 0507 [pii] AID - 10.1128/jvi.76.21.10724-10733.2002 [doi] PST - ppublish SO - J Virol. 2002 Nov;76(21):10724-33. doi: 10.1128/jvi.76.21.10724-10733.2002.