Artificial capillary culture : expansion and retroviral transduction of CD4+ T-lymphocytes for clinical application

An artificial capillary culture/transduction technique has been developed for application in a phase I gene therapy clinical trial for HIV. The trial protocol involves isolation of CD4+ T-lymphocytes from a genetically matched HIV negative twin, retroviral transduction of equal numbers of cells with...

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Veröffentlicht in:Gene therapy 1999-03, Vol.6 (3), p.373-384
Hauptverfasser: KNOP, A. E, ARNDT, A. J, RAPONI, M, BOYD, M. P, ELY, J. A, SYMONDS, G
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container_end_page 384
container_issue 3
container_start_page 373
container_title Gene therapy
container_volume 6
creator KNOP, A. E
ARNDT, A. J
RAPONI, M
BOYD, M. P
ELY, J. A
SYMONDS, G
description An artificial capillary culture/transduction technique has been developed for application in a phase I gene therapy clinical trial for HIV. The trial protocol involves isolation of CD4+ T-lymphocytes from a genetically matched HIV negative twin, retroviral transduction of equal numbers of cells with the ribozyme therapeutic and control genes, and expansion in Cellmax artificial capillary modules. Preclinical studies showed transduction efficiencies in the range of 3-30%, with preferential expansion of CD4+ lymphocytes over a culture period of 10-14 days. Over this time period, an average yield of 1.7 x 10(9) lymphocytes was readily attainable from 5 x 10(7) CD8-depleted lymphocytes. In addition, a sensitive and reliable quantitative competitive PCR method was developed to assess the levels of transduction before infusion into the recipient. The transduction data suggest that the efficiency of retroviral transduction was affected by the presence of inhibitory factors present in the virus preparations or generated as a result of the transduction process itself. It is hypothesised that the method of transduction could significantly affect the extent of this inhibition, and thus impact on clinical efficacy of retrovirus mediated gene therapy.
doi_str_mv 10.1038/sj.gt.3300822
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source MEDLINE; Springer Nature - Complete Springer Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals
subjects AIDS/HIV
Biological and medical sciences
Biotechnology
CD4 antigen
CD4-Positive T-Lymphocytes
CD8 antigen
Cell culture
Cell Culture Techniques
Cells, Cultured
Flow Cytometry
Fundamental and applied biological sciences. Psychology
Gene therapy
Genetic Therapy - methods
Genetic Vectors
Health. Pharmaceutical industry
HIV
Human immunodeficiency virus
Humans
Industrial applications and implications. Economical aspects
Lymphocytes
Lymphocytes T
Polymerase Chain Reaction - methods
Retroviridae - genetics
Transduction
Transfection - methods
title Artificial capillary culture : expansion and retroviral transduction of CD4+ T-lymphocytes for clinical application
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