Jump to main content
Jump to site search


Photothermal-assisted surface-mediated gene delivery for enhancing transfection efficiency

Author affiliations

Abstract

The development of gene therapy puts forward the requirements for efficient delivery of genetic information into diverse cells. However, in some cases of transfection, especially those for transfecting some primary cells and for delivering large size plasmid DNA (pDNA), the existing conventional transfection methods show poor efficiency. How to further improve transfection efficiency in these hard-to-achieve issues remains a crucial challenge. Here, we report a photothermal-assisted surface-mediated gene delivery based on a polydopamine-polyethylenimine (PDA-PEI) surface. The PDA-PEI surface was prepared through PEI-accelerated dopamine polymerization, which showed efficiency in the immobilization of PEI/pDNA polyplexes and remarkable photothermal properties. Upon IR irradiation, we observed improved transfection efficiencies of two important hard-to-achieve transfection issues, namely the transfection of primary endothelial cells, which are kinds of typical hard-to-transfect cells, and the transfection of cells with large-size pDNA. We demonstrate that the increases of transfection efficiency were due to the hyperthermia-induced pDNA release, the local cell membrane disturbance, and the polyplex internalization. This work highlights the importance of local immobilization and release of pDNA to gene deliveries, showing great potential applications in medical devices in the field of gene therapy.

Graphical abstract: Photothermal-assisted surface-mediated gene delivery for enhancing transfection efficiency

Back to tab navigation

Supplementary files

Publication details

The article was received on 14 Aug 2019, accepted on 23 Sep 2019 and first published on 25 Sep 2019


Article type: Paper
DOI: 10.1039/C9BM01284B
Biomater. Sci., 2019, Advance Article

  •   Request permissions

    Photothermal-assisted surface-mediated gene delivery for enhancing transfection efficiency

    H. Zhang, J. Wang, M. Hu, B. Li, H. Li, T. Chen, K. Ren, J. Ji, Q. Jing and G. Fu, Biomater. Sci., 2019, Advance Article , DOI: 10.1039/C9BM01284B

Search articles by author

Spotlight

Advertisements