Optimization of transfection parameters for ultrasound/Sonovue microbubble-mediated hAng-1 gene delivery in vitro

Zhou,Qing; Chen,Jin-Ling; Chen,Qian; Wang,Xiao; Deng,Qing; Hu,Bo; Guo,Rui-Qiang

doi:10.3892/mmr.2012.1100

December 2012 Volume 6 Issue 6

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December 2012 Volume 6 Issue 6

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Article

Optimization of transfection parameters for ultrasound/Sonovue microbubble-mediated hAng-1 gene delivery in vitro

Authors:
- Qing Zhou
- Jin-Ling Chen
- Qian Chen
- Xiao Wang
- Qing Deng
- Bo Hu
- Rui-Qiang Guo
View Affiliations / Copyright

Affiliations: Department of Ultrasound Imaging, Renmin Hospital of Wuhan University, Wuhan 430060, P.R. China
Pages: 1460-1464
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Published online on: September 26, 2012

https://doi.org/10.3892/mmr.2012.1100
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Abstract

This study aimed to explore the effects of microbubble concentration, gene dosage, cell-microbubble mixing mode and fetal bovine serum (FBS) on gene delivery. 293T cells were transfected with Sonovue microbubbles carrying the hAng-1 gene via ultrasound irradiation. Various ultrasound exposure parameters and microbubble and DNA concentrations were investigated. In addition, FBS and the cell suspension or adherent mode was explored. Transfection efficiency and cell viability were used to determine the optimal transfection parameters. hAng-1 gene transfection efficiency gradually increased with elongation of ultrasound exposure and increasing microbubble concentration. However, if ultrasound irradiation exceeded 1.5 W/cm2 and 30 sec or the microbubble concentration was over 20%, hAng-1 gene expression was significantly decreased, coupled with extensive cell death. Gene transfection levels were low under DNA concentrations less than 15 µg/ml. Furthermore, the gene transfer rate was significantly increased under cell suspension mode; FBS had no effect on hAng-1 gene transfection. The integrity of hAng-1 DNA was not affected by ultrasonic irradiation under optimal conditions. The optimal transfection parameters for the hAng-1 gene and Sonovue microbubble were ultrasound exposure of 1.5 W/cm2 and 30 sec, 20% microbubbles, 15 µg/ml of DNA and under cell suspension mode.

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Journals

International Journal of Molecular Medicine

International Journal of Oncology

Molecular Medicine Reports

Oncology Reports

Experimental and Therapeutic Medicine

Oncology Letters

Biomedical Reports

Molecular and Clinical Oncology

World Academy of Sciences Journal

International Journal of Functional Nutrition

International Journal of Epigenetics

Medicine International

Optimization of transfection parameters for ultrasound/Sonovue microbubble-mediated hAng-1 gene delivery in vitro

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