PMID- 17425424 OWN - NLM STAT- MEDLINE DCOM- 20070511 LR - 20210308 IS - 0882-8245 (Print) IS - 0882-8245 (Linking) VI - 20 IP - 1 DP - 2007 Spring TI - Restricted and selective tropism of a Venezuelan equine encephalitis virus-derived replicon vector for human dendritic cells. PG - 88-104 AB - Dendritic cells (DCs) consist of heterogeneous phenotypic populations and have diverse immunostimulatory functions dependent on both lineage and functional phenotype, but as exceptionally potent antigen-presenting cells, they are targets for generating effective antigen-specific immune responses. A promising replicon particle vector derived from Venezuelan equine encephalitis virus (VEE) has been reported to transduce murine footpad DCs. However, the receptive DC subset, the degree of restriction for this tropism, and the extent of conservation between rodents and humans have not been well characterized. Using fresh peripheral blood DCs, mononuclear cells, monocyte-derived macrophages, and monocyte-derived DCs, our results demonstrate conservation of VEE replicon particle (VRP) tropism for DCs between humans and rodents. We observed that a subset of immature myeloid DCs is the target population, and that VRP-transduced immature DCs retain intact functional capacity, for example, the ability to resist the cytopathic effects of VRP transduction and the capacity to acquire the mature phenotype. These studies support the demonstration of selective VRP tropism for human DCs and provide further insight into the biology of the VRP vector, its parent virus, and human DCs. FAU - Nishimoto, Kevin P AU - Nishimoto KP AD - Molecular Biology and Biochemistry, School of Medicine, School of Biological Sciences, University of California, Irvine, Irvine, California 92697, USA. FAU - Laust, Amanda K AU - Laust AK FAU - Wang, Kehui AU - Wang K FAU - Kamrud, Kurt I AU - Kamrud KI FAU - Hubby, Bolyn AU - Hubby B FAU - Smith, Jonathan F AU - Smith JF FAU - Nelson, Edward L AU - Nelson EL LA - eng GR - P30 CA062203/CA/NCI NIH HHS/United States GR - P41 EB015890/EB/NIBIB NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Viral Immunol JT - Viral immunology JID - 8801552 SB - IM MH - Dendritic Cells/physiology/*virology MH - Encephalitis Virus, Venezuelan Equine/*genetics/immunology MH - Genetic Vectors/*genetics MH - Humans MH - *Replicon MH - Transduction, Genetic MH - Tropism EDAT- 2007/04/12 09:00 MHDA- 2007/05/12 09:00 CRDT- 2007/04/12 09:00 PHST- 2007/04/12 09:00 [pubmed] PHST- 2007/05/12 09:00 [medline] PHST- 2007/04/12 09:00 [entrez] AID - 10.1089/vim.2006.0090 [doi] PST - ppublish SO - Viral Immunol. 2007 Spring;20(1):88-104. doi: 10.1089/vim.2006.0090.