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Transient production of bone morphogenetic protein 2 by allogeneic transplanted transduced cells induces bone formation
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences. (Osteoporos)
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences. (osteo)
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2000 (English)In: Human Gene Therapy, ISSN 1043-0342, Vol. 11, no 1, 205-211 p.Article in journal (Refereed) Published
Abstract [en]

The aim of this study was to evaluate the use of transplantation of genetically modified allogeneic cells as a method to induce bone formation. In this study, we infected a murine osteoprogenitor cell line with a retroviral vector containing the human bone morphogenic protein 2 (BMP2) gene. Transduced cells exhibited more alkaline phosphatase activity than cells treated with any of the tested doses of recombinant human BMP2 protein (rhBMP2). The transduced cells were suspended in a collagen solution and injected into the quadriceps muscle in immunocompetent outbred mice. Radiographic and histological examinations demonstrate abundant ectopic bone formation in 85% of the transplanted animals (n = 13). PCR and Southern blot analysis for the puromycin resistance gene revealed that the transplanted cells were detectable for up to 1 week, but not at later time points. None of the animals developed tumors. Our results suggest that allogeneic BMP2-expressing transduced cells may have therapeutic potential for enhancing new bone formation. This model also provides a simple, inexpensive, and sensitive assay for evaluating in vivo the osteoinductive potentials of secreted proteins without the requirement of protein purification or the use of immunodeficient animals.

Place, publisher, year, edition, pages
2000. Vol. 11, no 1, 205-211 p.
National Category
Medical and Health Sciences
URN: urn:nbn:se:uu:diva-54887DOI: 10.1089/10430340050016274.PubMedID: 10646651OAI: oai:DiVA.org:uu-54887DiVA: diva2:82796
Available from: 2005-05-31 Created: 2005-05-31 Last updated: 2009-11-09Bibliographically approved

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Melhus, Håkan
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