title: Legionella pneumophila infection up-regulates dendritic cell Toll-like receptor 2 (TLR2)/TLR4 expression and key maturation markers.
abstract: Dendritic cells (DCs) have a critical role in linking innate to adaptive immunity, and this transition is regulated by the up-regulation of costimulatory and major histocompatibility complex (MHC) molecules as well as Toll-like receptors. These changes in DCs have been observed to occur following microbial infection, and in the present study, we examined the effect of Legionella pneumophila infection on the expression of these DC markers. We showed that bone marrow-derived DC cultures from BALB/c mice infected with live L. pneumophila resulted in the up-regulation of Toll-like receptors 2 and 4 and the activation of CD40, CD86, and MHC class I/II molecules.
authors: Department of Molecular Medicine, University of South Florida, 12901 Bruce B. Downs Boulevard, Tampa, FL 33612-4799, USA.
authors: James
authors: J
authors: Rogers
authors: Amal
authors: A
authors: Hakki
authors: Izabella
authors: I
authors: Perkins
authors: Catherine
authors: C
authors: Newton
authors: Ray
authors: R
authors: Widen
authors: Nicholas
authors: N
authors: Burdash
authors: Thomas
authors: T
authors: Klein
authors: Herman
authors: H
authors: Friedman
mesh_terms: D000818:Animals; D015415:Biomarkers / Q000378:metabolism; D003713:Dendritic Cells / Q000378:metabolism / Q000382:microbiology*; D016952:Legionella pneumophila / Q000502:physiology*; D051379:Mice; D008807:Mice, Inbred BALB C; D051195:Toll-Like Receptor 2 / Q000502:physiology*; D051197:Toll-Like Receptor 4 / Q000378:metabolism*; D015854:Up-Regulation
chemical_list: D015415:Biomarkers; C495345:TLR4 protein, human; D051195:Toll-Like Receptor 2; D051197:Toll-Like Receptor 4