PMID- 10986562 OWN - NLM STAT- MEDLINE DCOM- 20001026 LR - 20231213 IS - 1043-0342 (Print) IS - 1043-0342 (Linking) VI - 11 IP - 13 DP - 2000 Sep 1 TI - Efficient gene transfer to human peripheral blood monocyte-derived dendritic cells using human immunodeficiency virus type 1-based lentiviral vectors. PG - 1901-9 AB - Dendritic cells (DCs) are potent antigen-presenting cells and are capable of activating naive T cells. Gene transfer of tumor antigen and cytokine genes into DCs could be an important strategy for immunotherapeutic applications. Dendritic cells derived from peripheral blood monocytes do not divide and are therefore poor candidates for gene transfer by Moloney murine leukemia virus (Mo-MuLV)-based retroviral vectors. Lentiviral vectors are emerging as a powerful tool for gene delivery into dividing and nondividing cells. A three-plasmid expression system pseudotyped with the envelope from vesicular stomatitis virus (VSV-G) was used to generate lentiviral vector particles expressing enhanced green fluorescent protein (EGFP). Peripheral blood monocyte-derived DCs were cultured in the presence of GM-CSF and IL-4 and transduced with lentiviral or Mo-MuLV-based vectors expressing EGFP. FACS analysis of lentiviral vector-transduced DCs derived either from normal healthy volunteers or from melanoma patients demonstrated transduction efficiency ranging from 70 to 90% compared with 2-8% using Mo-MuLV-based vectors pseudotyped with VSV-G. Comparison of lentiviral vectors expressing EGFP driven by CMV or human PGK promoters showed similar levels of transgene expression. Lentiviral vector preparations produced in the absence of HIV accessory proteins transduced DCs at efficiencies equal to vectors produced with accessory proteins. Alu-HIV-1 LTR PCR demonstrated the genomic integration of the lentiviral vector in the transduced DCs. Transduced cells showed characteristic dendritic cell phenotype and strong allostimulatory capacity and maintained the ability to respond to activation signals such as CD40 ligand and lipopolysaccharide. These results provide evidence that lentiviral vectors are efficient tools for gene transfer and expression in monocyte-derived DCs that could be useful for immunotherapeutic applications. FAU - Chinnasamy, N AU - Chinnasamy N AD - Clinical Gene Therapy Branch, NHGRI, Bethesda, MD 20892, USA. FAU - Chinnasamy, D AU - Chinnasamy D FAU - Toso, J F AU - Toso JF FAU - Lapointe, R AU - Lapointe R FAU - Candotti, F AU - Candotti F FAU - Morgan, R A AU - Morgan RA FAU - Hwu, P AU - Hwu P LA - eng PT - Journal Article PL - United States TA - Hum Gene Ther JT - Human gene therapy JID - 9008950 RN - 0 (Antigens, CD) RN - 0 (Immunoglobulins) RN - 0 (Luminescent Proteins) RN - 0 (Membrane Glycoproteins) RN - 0 (Viral Proteins) RN - 147336-22-9 (Green Fluorescent Proteins) RN - 187348-17-0 (Interleukin-12) SB - IM MH - Alu Elements/genetics MH - Antigens, CD MH - Cytomegalovirus/genetics MH - Dendritic Cells/immunology/*physiology/virology MH - *Gene Transfer Techniques MH - Green Fluorescent Proteins MH - HIV-1/genetics MH - Humans MH - Immunoglobulins/metabolism MH - Interleukin-12/metabolism MH - Lentivirus/*genetics MH - Luminescent Proteins/genetics/metabolism MH - Melanoma/genetics/pathology MH - Membrane Glycoproteins/metabolism MH - Moloney murine leukemia virus/genetics MH - Monocytes/*cytology/virology MH - Promoter Regions, Genetic MH - T-Lymphocytes/immunology MH - Vesicular stomatitis Indiana virus/genetics MH - Viral Proteins/genetics MH - CD83 Antigen EDAT- 2000/09/15 11:00 MHDA- 2001/02/28 10:01 CRDT- 2000/09/15 11:00 PHST- 2000/09/15 11:00 [pubmed] PHST- 2001/02/28 10:01 [medline] PHST- 2000/09/15 11:00 [entrez] AID - 10.1089/10430340050129512 [doi] PST - ppublish SO - Hum Gene Ther. 2000 Sep 1;11(13):1901-9. doi: 10.1089/10430340050129512.