Efficient transduction and selection of human T-lymphocytes with bicistronic Thy1/HSV1-TK retroviral vector produced by a human packaging cell line. 2004

François M Lemoine, and Mariana Mesel-Lemoine, and Mustapha Cherai, and Géraldine Gallot, and Henri Vié, and Virginie Leclercq, and Hélène Trébèden-Negre, and Olivier Mammès, and Olivier Boyer, and Patricia Noguiez-Hellin, and David Klatzmann
UPMC/CNRS UMR 7087, CERVI, Hôpital Pitié-Salpêtrière, 83 bd de l'hôpital, 75651 Paris cedex 13, France. francois.lemoine@chups.jussieu.fr

BACKGROUND T-cells expressing the HSV1-TK suicide gene can be used for the control of graft-versus-host disease following allogeneic stem cell transplantation. To develop clinical trials based on such a strategy, we have generated under good manufacturing procedures a novel 'split genome' human packaging cell line (1704 cells). METHODS To minimize the risk of generating replication-competent retroviruses, pol was truncated to remove sequences overlapping with env. To improve retroviral infection and selection of transduced T-cells, high titers of GALV-pseudotyped retroviral particles harboring a bicistronic Thy1-IRES-TK vector coding for the CD90 GPI-anchored membrane molecule were produced by 1704 cells. RESULTS Using 1704 cell supernatant and an optimized transduction protocol, approximately 50% of primary T-cells were transduced and could then be purified (approximately 95%) using clinical-grade immunomagnetic beads directed against CD90. Over 96% of these OKT3/IL-2-activated CD90(+)-selected T-cells were killed by ganciclovir. Cell proliferation and cytokine production of transduced T-cells and HLA-restricted cytotoxicity of transduced T-cell clones were identical to those of their non-transduced counterparts cultured under the same conditions. CONCLUSIONS GALV-pseudotyped retroviral particles harboring a bicistronic Thy1-IRES-TK vector allow efficient transduction and rapid selection of human T-cells under conditions applicable for clinical trials using the new human 1704 packaging cell line.

UI MeSH Term Description Entries
D008969 Molecular Sequence Data Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories. Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
D002460 Cell Line Established cell cultures that have the potential to propagate indefinitely. Cell Lines,Line, Cell,Lines, Cell
D002478 Cells, Cultured Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others. Cultured Cells,Cell, Cultured,Cultured Cell
D005822 Genetic Vectors DNA molecules capable of autonomous replication within a host cell and into which other DNA sequences can be inserted and thus amplified. Many are derived from PLASMIDS; BACTERIOPHAGES; or VIRUSES. They are used for transporting foreign genes into recipient cells. Genetic vectors possess a functional replicator site and contain GENETIC MARKERS to facilitate their selective recognition. Cloning Vectors,Shuttle Vectors,Vectors, Genetic,Cloning Vector,Genetic Vector,Shuttle Vector,Vector, Cloning,Vector, Genetic,Vector, Shuttle,Vectors, Cloning,Vectors, Shuttle
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001483 Base Sequence The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence. DNA Sequence,Nucleotide Sequence,RNA Sequence,DNA Sequences,Base Sequences,Nucleotide Sequences,RNA Sequences,Sequence, Base,Sequence, DNA,Sequence, Nucleotide,Sequence, RNA,Sequences, Base,Sequences, DNA,Sequences, Nucleotide,Sequences, RNA
D012190 Retroviridae Family of RNA viruses that infects birds and mammals and encodes the enzyme reverse transcriptase. The family contains seven genera: DELTARETROVIRUS; LENTIVIRUS; RETROVIRUSES TYPE B, MAMMALIAN; ALPHARETROVIRUS; GAMMARETROVIRUS; RETROVIRUSES TYPE D; and SPUMAVIRUS. A key feature of retrovirus biology is the synthesis of a DNA copy of the genome which is integrated into cellular DNA. After integration it is sometimes not expressed but maintained in a latent state (PROVIRUSES). Leukemogenic Viruses,Leukoviruses,Oncornaviruses,Oncovirinae,Oncoviruses,Oncoviruses, Type C,RNA Tumor Viruses,Retroviruses,Type C Oncoviruses,C Oncovirus, Type,C Oncoviruses, Type,Leukemogenic Virus,Leukovirus,Oncornavirus,Oncovirus,Oncovirus, Type C,RNA Tumor Virus,Retrovirus,Tumor Virus, RNA,Tumor Viruses, RNA,Type C Oncovirus,Virus, Leukemogenic,Virus, RNA Tumor,Viruses, Leukemogenic,Viruses, RNA Tumor
D013601 T-Lymphocytes Lymphocytes responsible for cell-mediated immunity. Two types have been identified - cytotoxic (T-LYMPHOCYTES, CYTOTOXIC) and helper T-lymphocytes (T-LYMPHOCYTES, HELPER-INDUCER). They are formed when lymphocytes circulate through the THYMUS GLAND and differentiate to thymocytes. When exposed to an antigen, they divide rapidly and produce large numbers of new T cells sensitized to that antigen. T Cell,T Lymphocyte,T-Cells,Thymus-Dependent Lymphocytes,Cell, T,Cells, T,Lymphocyte, T,Lymphocyte, Thymus-Dependent,Lymphocytes, T,Lymphocytes, Thymus-Dependent,T Cells,T Lymphocytes,T-Cell,T-Lymphocyte,Thymus Dependent Lymphocytes,Thymus-Dependent Lymphocyte
D013937 Thymidine Kinase An enzyme that catalyzes the conversion of ATP and thymidine to ADP and thymidine 5'-phosphate. Deoxyuridine can also act as an acceptor and dGTP as a donor. (From Enzyme Nomenclature, 1992) EC 2.7.1.21. Deoxythymidine Kinase,Deoxypyrimidine Kinase,Kinase, Deoxypyrimidine,Kinase, Deoxythymidine,Kinase, Thymidine
D014161 Transduction, Genetic The transfer of bacterial DNA by phages from an infected bacterium to another bacterium. This also refers to the transfer of genes into eukaryotic cells by viruses. This naturally occurring process is routinely employed as a GENE TRANSFER TECHNIQUE. Genetic Transduction,Genetic Transductions,Transductions, Genetic

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