Murine mesenchymal stem cells in long-term bone marrow culture were genetically labeled using lentiviral vector carrying enhanced green fluorescent protein (eGFP) reporter gene under SFFV promoter or without it. We studied the developmental fate of labeled mesenchymal stem cells in stromal cell layers of long-term bone marrow culture and in ectopic hemopoietic foci formed by these stromal layers under the renal capsule of syngeneic mice. The frequency of labeled polypotent stromal precursors (fibroblast CFU) was analyzed in adherent cell layers of long-term culture and ectopic foci formed from them. The proportion of labeled fibroblast CFU in ectopic foci increased by 10 times in case of implantation of adherent cell layers infected with lentivirus containing eGFP reporter gene without promoter. eGFP expression leads to rejection of labeled stromal cells. Labeling with eGFP-carrying vector without promoter makes possible long-term tracking of mesenchymal stromal cells.
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Translated from Kletochnye Tekhnologii v Biologii i Meditsine, No. 1, pp. 21–24, January, 2015
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Sats, N.V., Shipunova, I.N., Bigil’diev, A.E. et al. Peculiarities of Gene Transfer into Mesenchymal Stem Cells. Bull Exp Biol Med 159, 134–137 (2015). https://doi.org/10.1007/s10517-015-2908-7
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DOI: https://doi.org/10.1007/s10517-015-2908-7