Gene Electrotransfer of Canine Interleukin 12 into Canine Melanoma Cell Lines

Gene Electrotransfer of Canine Interleukin 12 into Canine Melanoma Cell Lines A gene electrotransfer (GET) of interleukin 12 (IL-12) had already given good results when treating tumors in human and veterinary clinical trials. So far, plasmids used in veterinary clinical studies encoded a human or a feline IL-12 and an ampicillin resistance gene, which is not recommended by the regulatory agencies to be used in clinical trials. Therefore, the aim of the current study was to construct the plasmid encoding a canine IL-12 with kanamycin antibiotic resistance gene that could be used in veterinary clinical oncology. The validation of the newly constructed plasmid was carried out on canine malignant melanoma cells, which have not been used in GET studies so far, and on human malignant melanoma cells. Canine and human malignant melanoma cell lines were transfected with plasmid encoding enhanced green fluorescence protein at different pulse parameter conditions to determine the transfection efficiency and cell survival. The IL-12 expression of the most suitable conditions for GET of the plasmid encoding canine IL-12 was determined at mRNA level by the qRT-PCR and at protein level with the ELISpot assay. The obtained results showed that the newly constructed plasmid encoding canine IL-12 had similar or even higher expression capacity than the plasmid encoding human IL-12. Therefore, it represents a promising therapeutic plasmid for further IL-12 gene therapy in clinical studies for spontaneous canine tumors. Additionally, it also meets the main regulatory agencies’ (FDA and EMA) criteria. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The Journal of Membrane Biology Springer Journals
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Publisher
Springer US
Copyright
Copyright © 2015 by Springer Science+Business Media New York
Subject
Life Sciences; Biochemistry, general; Human Physiology
ISSN
0022-2631
eISSN
1432-1424
D.O.I.
10.1007/s00232-015-9800-2
Publisher site
See Article on Publisher Site

Abstract

A gene electrotransfer (GET) of interleukin 12 (IL-12) had already given good results when treating tumors in human and veterinary clinical trials. So far, plasmids used in veterinary clinical studies encoded a human or a feline IL-12 and an ampicillin resistance gene, which is not recommended by the regulatory agencies to be used in clinical trials. Therefore, the aim of the current study was to construct the plasmid encoding a canine IL-12 with kanamycin antibiotic resistance gene that could be used in veterinary clinical oncology. The validation of the newly constructed plasmid was carried out on canine malignant melanoma cells, which have not been used in GET studies so far, and on human malignant melanoma cells. Canine and human malignant melanoma cell lines were transfected with plasmid encoding enhanced green fluorescence protein at different pulse parameter conditions to determine the transfection efficiency and cell survival. The IL-12 expression of the most suitable conditions for GET of the plasmid encoding canine IL-12 was determined at mRNA level by the qRT-PCR and at protein level with the ELISpot assay. The obtained results showed that the newly constructed plasmid encoding canine IL-12 had similar or even higher expression capacity than the plasmid encoding human IL-12. Therefore, it represents a promising therapeutic plasmid for further IL-12 gene therapy in clinical studies for spontaneous canine tumors. Additionally, it also meets the main regulatory agencies’ (FDA and EMA) criteria.

Journal

The Journal of Membrane BiologySpringer Journals

Published: Apr 4, 2015

References

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