Proof of the efficacy of cell therapy by numerous studies and clinical trials inevitably has raised the question of improving the regulatory framework that governs its use. Particular attention should be paid to the genetic safety of cell preparations. The immune, genetic, and pharmacological modification and expansion of cells in vitro can lead to an undesired effect, which not only has reduced the healing, recovery, and regulatory potential of cell therapy, but also increased the risk of accumulating genetically aberrant cells and the oncogenic transformation of cell preparations. The article has presented the estimation of the parameters of the genetic stability of cultured multipotent mesenchymal stromal cells (MSCs) derived from bone marrow and adipose tissue. The study was conducted using classic methods of genotoxicology, i.e., the individual cells gel-electrophoresis (comet assay) and the micronucleus test. We described a basic level of DNA damage and the frequency of micronucleus, identified genetically instable cultures, and conducted the comparison of genetic variability of MSCs isolated from different tissues.
Russian Journal of Genetics – Springer Journals
Published: Feb 6, 2014
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