title: Enhanced gene transfer to mouse dendritic cells using adenoviral vectors coated with a novel adapter molecule.
abstract: Adenovirus (Ad)-mediated transduction of dendritic cells (DC) is inefficient because of the lack of the primary Ad receptor, CAR. DC infection with Ad targeted to the CD40 results in increased gene transfer. The current report describes further development of the CD40-targeting approach using an adapter molecule that bridges the fiber of the Ad5 to CD40 on mouse DC. The adapter molecule, CFm40L, consists of CAR fused to mouse CD40 ligand via a trimerization motif. A stable cell line that secretes CFm40L at high levels was generated. Gene transfer to mouse bone marrow-derived DC (mBMDC) using CFm40L-targeted Ad was over 4 orders of magnitude more efficient than that for the untargeted Ad5. Gene transfer was achieved to over 70% of the mBMDC compared to undetectable transduction using untargeted Ad5. In addition to dramatically enhanced gene transfer, the CFm40L-targeted Ad5 induced phenotypical maturation and upregulated IL-12 expression. Most importantly, the CFm40L-targeted Ad5 elicited specific immune response against a model antigen in vivo. The results of this study demonstrate that Ad-mediated gene transfer to DC can be significantly enhanced using nonnative transduction pathways, such the CD40 pathway, which may have important applications in genetic vaccination for cancer and infectious diseases.
authors.affiliation: Division of Human Gene Therapy, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA. pereboev@uab.edu
authors.forename: Alexander V
authors.initials: AV
authors.lastname: Pereboev
authors.forename: Jill M
authors.initials: JM
authors.lastname: Nagle
authors.forename: Mikhail A
authors.initials: MA
authors.lastname: Shakhmatov
authors.forename: Pierre L
authors.initials: PL
authors.lastname: Triozzi
authors.forename: Qiana L
authors.initials: QL
authors.lastname: Matthews
authors.forename: Yosuke
authors.initials: Y
authors.lastname: Kawakami
authors.forename: David T
authors.initials: DT
authors.lastname: Curiel
authors.forename: Jerry L
authors.initials: JL
authors.lastname: Blackwell
mesh_terms: D000256:Adenoviridae / Q000235:genetics*; D000818:Animals; D001854:Bone Marrow Cells / Q000166:cytology; D015496:CD4-Positive T-Lymphocytes / Q000276:immunology; D023201:CD40 Ligand / Q000235:genetics* / Q000378:metabolism; D018414:CD8-Positive T-Lymphocytes / Q000276:immunology; D002460:Cell Line; D062727:Coxsackie and Adenovirus Receptor-Like Membrane Protein; D003713:Dendritic Cells / Q000166:cytology / Q000378:metabolism*; D015870:Gene Expression; D005822:Genetic Vectors; D006801:Humans; D018664:Interleukin-12 / Q000235:genetics; D051379:Mice; D008807:Mice, Inbred BALB C; D012333:RNA, Messenger / Q000032:analysis; D011991:Receptors, Virus / Q000235:genetics* / Q000378:metabolism; D011993:Recombinant Fusion Proteins / Q000235:genetics* / Q000378:metabolism; D014161:Transduction, Genetic / Q000379:methods*
chemical_list: C494066:CFm40L fusion protein; C568771:CLMP protein, human; C568772:CLMP protein, mouse; D062727:Coxsackie and Adenovirus Receptor-Like Membrane Protein; D012333:RNA, Messenger; D011991:Receptors, Virus; D011993:Recombinant Fusion Proteins; D023201:CD40 Ligand; D018664:Interleukin-12