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Improved transfection efficiency and metabolic activity in human embryonic stem cell using non-enzymatic method

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Kim, C-Yoon; Hwang, In-Kyu; Kang, Changhee; Chung, Eun-Bin; Jung, Cho-Rok; Oh, Hanseul; Jeong, Young-Hoon; Moon, Sung-Hwan; Kim, Jong Soo; Hong, Ki-Sung; Park, Jae-Hak; Chung, Hyung-Min

Issue Date
Korean Society for Stem Cell Research
International Journal of Stem Cells, Vol.11 No.2, pp.149-156
Human embryonic stem cells (hESCs) are pluripotent cells widely used in conventional and regenerative medicine due to their ability to self-renew, proliferate and differentiate. Recently, genetic modification of stem cells using genome editing is the most advanced technique for treating hereditary diseases. Nevertheless, the low transfection efficiency of hESCs using enzymatic methods is still limited in in vitro preclinical research. To overcome these limitations, we have developed transfection methods using non-enzymatic treatments on hESCs. In this study, hESCs were transfected following enzymatic (TrypLE and trypsin) and non-enzymatic treatment ethylenediaminetetraacetic acid (EDTA) to increase transfection efficiency. Flow cytometrie analysis using an enhanced green fluorescent protein vector showed significantly increased transfection efficiency of EDTA method compared to standard enzyme method. In addition, he EDTA approach maintained stable cell viability and recovery rate of hESCs after transfection. Also, metabolic activity by using Extracellular Flux Analyzer revealed that EDTA method maintained as similar levels of cell functionility as normal group comparing with enzymatic groups. These results suggest that transfection using EDTA is a more efficient and safe substitute for transfection than the use of standard enzymatic methods.
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  • College of Veterinary Medicine
  • Department of Veterinary Medicine
Research Area Laboratory Animal Medicine, Toxicologic Pathology


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