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Functional characterization of cell hybrids generated by induced fusion of primary porcine mesenchymal stem cells with an immortal murine cell line
Linköping University, Faculty of Health Sciences. Linköping University, Department of Biomedicine and Surgery, Division of clinical chemistry.
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2006 (English)In: Cell and Tissue Research, ISSN 0302-766X, Vol. 326, no 1, 123-137 p.Article in journal (Refereed) Published
Abstract [en]

Bone marrow mesenchymal stem cells (MSC) integrate into various organs and contribute to the regeneration of diverse tissues. However, the mechanistic basis of the plasticity of MSC is not fully understood. The change of cell fate has been suggested to occur through cell fusion. We have generated hybrid cell lines by polyethylene-glycol-mediated cell fusion of primary porcine MSC with the immortal murine fibroblast cell line F7, a derivative of the GM05267 cell line. The hybrid cell lines display fibroblastic morphology and proliferate like immortal cells. They contain tetraploid to hexaploid porcine chromosomes accompanied by hypo-diploid murine chromosomes. Interestingly, many hybrid cell lines also express high levels of tissue-nonspecific alkaline phosphatase, which is considered to be a marker of undifferentiated embryonic stem cells. All tested hybrid cell lines retain osteogenic differentiation, a few of them also retain adipogenic potential, but none retain chondrogenic differentiation. Conditioned media from hybrid cells enhance the proliferation of both early-passage and late-passage porcine MSC, indicating that the hybrid cells secrete diffusible growth stimulatory factors. Murine F7 cells thus have the unique property of generating immortal cell hybrids containing unusually high numbers of chromosomes derived from normal cells. These hybrid cells can be employed in various studies to improve our understanding of regenerative biology. This is the first report, to our knowledge, describing the generation of experimentally induced cell hybrids by using normal primary MSC. © Springer-Verlag 2006.

Place, publisher, year, edition, pages
2006. Vol. 326, no 1, 123-137 p.
National Category
Medical and Health Sciences
URN: urn:nbn:se:liu:diva-36097DOI: 10.1007/s00441-006-0224-2Local ID: 29868OAI: diva2:256945
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2011-01-11

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Islam, QuamrulMagnusson, PerIslam, Khaleda
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Faculty of Health SciencesDivision of clinical chemistryDepartment of Clinical Chemistry
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