Superior gene transfer into solid tumour cells than into human mobilised peripheral blood progenitor cells using helpervirus-free adeno-associated viral vector stocks
Autologous peripheral blood progenitor cell (PBPC) grafts can be contaminated with tumour cells that potentially give rise to relapse following myeloablative therapy and PBPC transplantation. Adeno-associated virus (AAV)-based vectors produced by a new adenovirus-free technique are a gene delivery s...
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| Main Authors: | , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
12 July 1999
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| In: |
European journal of cancer
Year: 1999, Volume: 35, Issue: 7, Pages: 1136-1142 |
| ISSN: | 1879-0852 |
| DOI: | 10.1016/S0959-8049(99)00075-1 |
| Online Access: | Resolving-System, lizenzpflichtig, Volltext: https://doi.org/10.1016/S0959-8049(99)00075-1 Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S0959804999000751 
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| Author Notes: | M.R. Veldwijk, B. Schiedlmeier, J.A. Kleinschmidt, W.J. Zeller and S. Fruehauf |
| Summary: | Autologous peripheral blood progenitor cell (PBPC) grafts can be contaminated with tumour cells that potentially give rise to relapse following myeloablative therapy and PBPC transplantation. Adeno-associated virus (AAV)-based vectors produced by a new adenovirus-free technique are a gene delivery system which may be applicable for tumour cell purging. To test for the host range of these vectors, solid tumours of clinical relevance and normal CD34+ PBPC were selected as target cells for an AAV-vector, encoding the green-fluorescent protein (GFP) as the indicator gene. At a multiplicity of infection (MOI) of 100: 79.94%±14.36% (mean±SEM) of the connective tissue sarcoma cell line (HS-1) and 64.84%±6.91% of the cervical carcinoma cell line cells (HeLa-RC) expressed GFP while the other cell lines tested (1 ovarian tumour, 1 germ cell tumour, 1 osteosarcoma, 2 small cell lung cancer) ranged between 2.82% and 11.94%. Optimising the transduction protocol by use of higher MOIs of up to 500 and by pretreatment with the tyrosine kinase inhibitor, genistein, resulted in up to 95.97% and 94.10% green-fluorescent HS-1 and HeLa-RC cells, respectively. In contrast, only 1.39%±0.51% of the normal haematopoietic CD34+ progenitor cells expressed GFP at a MOI of 100. The differential infectivity between HS-1 and CD34+ cells was maintained after tumour cell spiking in leucapheresis products. Our observations suggest that AAV-based vectors may prove useful for purging of autologous PBPC grafts from solid tumour cells. |
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| Item Description: | Gesehen am 20.01.2022 |
| Physical Description: | Online Resource |
| ISSN: | 1879-0852 |
| DOI: | 10.1016/S0959-8049(99)00075-1 |