PMID- 12973034 OWN - NLM STAT- MEDLINE DCOM- 20040409 LR - 20191107 IS - 1524-9557 (Print) IS - 1524-9557 (Linking) VI - 26 IP - 5 DP - 2003 Sep-Oct TI - Potent maturation of monocyte-derived dendritic cells after CD40L lentiviral gene delivery. PG - 451-60 AB - Dendritic cells (DCs) are being evaluated in immunization protocols to enhance immunity against infectious diseases and cancer. Interaction of T-helper cells expressing CD40 ligand (CD40L) with its cognate CD40 receptor on DCs leads to a mature DC phenotype, characterized by increased capacity of antigen presentation to cytotoxic T cells. The authors examined the ability of third-generation self-inactivating lentiviral vectors expressing CD40L to induce autonomous maturation of ex vivo expanded human monocyte-derived dendritic cells. Transduction with lentiviral vectors achieved a highly efficient gene transfer of CD40L to DCs, which correlated with phenotypic maturation as shown by the expression of immunologic relevant markers (CD83, CD80, MHCI) and secretion of IL-12, whereas DC phenotype was not affected by a control vector expressing only the green fluorescent protein marker. Addition of recombinant IFN-gamma to DCs at the time of CD40L transduction further enhanced IL-12 production, and when co-cultured with allogeneic and autologous CD8+ and CD4+ T cells, a potent activation was observed. Autologous responses against an HLA-A2-restricted influenza peptide (Flu-M1) and a tumor-associated antigenic peptide (gp100 210M) were significantly enhanced when CD40L transduced DCs were used as antigen-presenting cells for in vitro stimulation of CD8+ cytotoxic T lymphocytes. These results demonstrate that endogenous expression of CD40L by lentivirally transduced DCs induced their autonomous maturation to a phenotype comparable to that induced by optimal concentrations of soluble CD40L, providing a novel tool for genetic manipulation of DCs. FAU - Koya, Richard C AU - Koya RC AD - Institute for Genetic Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, USA. FAU - Kasahara, Nori AU - Kasahara N FAU - Favaro, Patricia M B AU - Favaro PM FAU - Lau, Roy AU - Lau R FAU - Ta, Huy Q AU - Ta HQ FAU - Weber, Jeffrey S AU - Weber JS FAU - Stripecke, Renata AU - Stripecke R LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - J Immunother JT - Journal of immunotherapy (Hagerstown, Md. : 1997) JID - 9706083 RN - 0 (Antibodies, Monoclonal) RN - 0 (Recombinant Proteins) RN - 147205-72-9 (CD40 Ligand) RN - 187348-17-0 (Interleukin-12) RN - 83869-56-1 (Granulocyte-Macrophage Colony-Stimulating Factor) SB - IM MH - Antibodies, Monoclonal MH - CD4-Positive T-Lymphocytes/immunology MH - CD40 Ligand/biosynthesis/*genetics/immunology MH - Cell Line MH - Coculture Techniques MH - Dendritic Cells/cytology/*immunology MH - *Gene Transfer Techniques MH - *Genetic Vectors MH - Granulocyte-Macrophage Colony-Stimulating Factor/pharmacology MH - Humans MH - Immunophenotyping MH - Interleukin-12/biosynthesis MH - Lentivirus/*genetics MH - Monocytes MH - Recombinant Proteins MH - T-Lymphocytes, Cytotoxic/immunology EDAT- 2003/09/16 05:00 MHDA- 2004/04/10 05:00 CRDT- 2003/09/16 05:00 PHST- 2003/09/16 05:00 [pubmed] PHST- 2004/04/10 05:00 [medline] PHST- 2003/09/16 05:00 [entrez] AID - 10.1097/00002371-200309000-00008 [doi] PST - ppublish SO - J Immunother. 2003 Sep-Oct;26(5):451-60. doi: 10.1097/00002371-200309000-00008.