Abstract
We report the use of polyamidoamine (PAMAM-NH2) dendrimers along with other non-viral vehicles for the in vitro transfection of human bone marrow mesenchymal stem cells (hMSCs) and for engineering MSCs to secrete brain-derived neurotrophic factor (BDNF). Different generations of cationic polyamidoamine dendrimers (generations 3–6) were tested on HEK 293T cells. hMSCs were then transfected with PAMAM-NH2 G4 dendrimers and Lipofectamine 2000, which elicited the expression of GFP reporter in around 6 and 20% of the cells, respectively. Both vehicles were then shown to elicit the expression of BDNF in MSCs from a bicistronic cassette. Non-virally induced neurotrophin expression may be a safe and easy method for adapting autologous stem cells for therapeutic treatment of diseases and neural system injuries.
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Potential conflicts of interest The authors do not have commercial or other associations that might entail a conflict of interest. Sources of financial support This work has been supported by a grant from ERA-NET NAN2007-31198-E.
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11033_2009_9651_MOESM1_ESM.tif
The changes of fluorescence emission intensity of EB complexed with pGFP upon addition of PAMAM G4 dendrimer at different charge ratios. λexc. = 477 nm (TIF 813 kb)
11033_2009_9651_MOESM3_ESM.tif
Representative flow cytometry analysis of transfection of pGFP by PAMAM G4 dendrimer in cells HEK 293T. Left – control cells, right – G4-transfected cells (TIF 395 kb)
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Shakhbazau, A., Shcharbin, D., Seviaryn, I. et al. Use of polyamidoamine dendrimers to engineer BDNF-producing human mesenchymal stem cells. Mol Biol Rep 37, 2003–2008 (2010). https://doi.org/10.1007/s11033-009-9651-y
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DOI: https://doi.org/10.1007/s11033-009-9651-y