PMID- 19649323 OWN - NLM STAT- MEDLINE DCOM- 20091102 LR - 20211020 IS - 1553-7374 (Electronic) IS - 1553-7366 (Print) IS - 1553-7366 (Linking) VI - 5 IP - 7 DP - 2009 Jul TI - Influence of dendritic cells on viral pathogenicity. PG - e1000384 LID - 10.1371/journal.ppat.1000384 [doi] LID - e1000384 AB - Although most viral infections cause minor, if any, symptoms, a certain number result in serious illness. Viral disease symptoms result both from direct viral replication within host cells and from indirect immunopathological consequences. Dendritic cells (DCs) are key determinants of viral disease outcome; they activate immune responses during viral infection and direct T cells toward distinct T helper type responses. Certain viruses are able to skew cytokine secretion by DCs inducing and/or downregulating the immune system with the aim of facilitating and prolonging release of progeny. Thus, the interaction of DCs with viruses most often results in the absence of disease or complete recovery when natural functions of DCs prevail, but may lead to chronic illness or death when these functions are outmanoeuvred by viruses in the exploitation of DCs. FAU - Freer, Giulia AU - Freer G AD - Retrovirus Center and Virology Section, Department of Experimental Pathology, University of Pisa, Pisa, Italy. freer@biomed.unipi.it FAU - Matteucci, Donatella AU - Matteucci D LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review DEP - 20090731 PL - United States TA - PLoS Pathog JT - PLoS pathogens JID - 101238921 SB - IM MH - Animals MH - Dendritic Cells/*immunology/virology MH - Host-Pathogen Interactions MH - Humans MH - Virus Diseases/*immunology/virology MH - Viruses/*pathogenicity PMC - PMC2712770 COIS- The authors have declared that no competing interests exist. EDAT- 2009/08/04 09:00 MHDA- 2009/11/03 06:00 PMCR- 2009/07/31 CRDT- 2009/08/04 09:00 PHST- 2009/08/04 09:00 [entrez] PHST- 2009/08/04 09:00 [pubmed] PHST- 2009/11/03 06:00 [medline] PHST- 2009/07/31 00:00 [pmc-release] AID - 08-PLPA-RV-1370R2 [pii] AID - 10.1371/journal.ppat.1000384 [doi] PST - ppublish SO - PLoS Pathog. 2009 Jul;5(7):e1000384. doi: 10.1371/journal.ppat.1000384. Epub 2009 Jul 31.