Mesenchymal stemcells (MSCs) hold great promise for the treatment of numerous diseases. A major problem for MSC therapeutic use is represented by the very low amount of MSCs which can be isolated from different tissues; thus ex vivo expansion is indispensable. Long-term culture, however, is associated with extensive morphological and functional changes of MSCs. In addition, the concern that they may accumulate stochastic mutations which lead the risk of malignant transformation still remains. Overall, the genome of human MSCs (hMSCs) appears to be apparently stable throughout culture, though transient clonal aneuploidies have been detected. Particular attention should be given to the use of low-oxygen environment in order to increase the proliferative capacity of hMSCs, since data on the effect of hypoxic culture conditions on genomic stability are few and contradictory. Furthermore, specific and reproducible epigenetic changes were acquired by hMSCs during ex vivo expansion, which may be connected and trigger all the biological changes observed. In this review we address current issues on long-term culture of hMSCs with a 360-degree view, starting from the genomic profiles and back, looking for an epigenetic interpretation of their genetic stability

Bentivegna, A., Miloso, M., Riva, G., Foudah, D., Butta, V., Dalpra', L., et al. (2013). DNA Methylation Changes during In Vitro Propagation of Human Mesenchymal Stem Cells: Implications for Their Genomic Stability?. STEM CELLS INTERNATIONAL [10.1155/2013/192425].

DNA Methylation Changes during In Vitro Propagation of Human Mesenchymal Stem Cells: Implications for Their Genomic Stability?

BENTIVEGNA, ANGELA;MILOSO, MARIAROSARIA;RIVA, GABRIELE;FOUDAH, DANA;BUTTA, VALENTINA;DALPRA', LEDA;TREDICI, GIOVANNI
2013

Abstract

Mesenchymal stemcells (MSCs) hold great promise for the treatment of numerous diseases. A major problem for MSC therapeutic use is represented by the very low amount of MSCs which can be isolated from different tissues; thus ex vivo expansion is indispensable. Long-term culture, however, is associated with extensive morphological and functional changes of MSCs. In addition, the concern that they may accumulate stochastic mutations which lead the risk of malignant transformation still remains. Overall, the genome of human MSCs (hMSCs) appears to be apparently stable throughout culture, though transient clonal aneuploidies have been detected. Particular attention should be given to the use of low-oxygen environment in order to increase the proliferative capacity of hMSCs, since data on the effect of hypoxic culture conditions on genomic stability are few and contradictory. Furthermore, specific and reproducible epigenetic changes were acquired by hMSCs during ex vivo expansion, which may be connected and trigger all the biological changes observed. In this review we address current issues on long-term culture of hMSCs with a 360-degree view, starting from the genomic profiles and back, looking for an epigenetic interpretation of their genetic stability
Articolo in rivista - Review Essay
Human bone-marrow; long-term culture; spontaneous malignant-transformation; stromal cells; life-span; regenerative medicine; cross-contamination; cellular senescence; telomerase activity; down-regulation
English
9
Bentivegna, A., Miloso, M., Riva, G., Foudah, D., Butta, V., Dalpra', L., et al. (2013). DNA Methylation Changes during In Vitro Propagation of Human Mesenchymal Stem Cells: Implications for Their Genomic Stability?. STEM CELLS INTERNATIONAL [10.1155/2013/192425].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/49076
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