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The Journal of Membrane Biology

, Volume 252, Issue 1, pp 105–114 | Cite as

The Effect of Lipid Antioxidant α-Tocopherol on Cell Viability and Electrofusion Yield of B16-F1 Cells In Vitro

  • Masa KanduserEmail author
  • Mojca Kokalj Imsirovic
  • Marko Usaj
Article
  • 26 Downloads

Abstract

Induced cell fusion is a powerful method for production of hybridoma in biotechnology and cell vaccines in medical applications. Among different alternatives, physical methods have an advantage, as they do not require any additives. Among them electrofusion, an electroporation-based cell fusion method holds a great promise. Electric pulses cause cell membrane permeabilization and due to pore formation bring cell membrane into the fusogenic state. At the same time, however, they compromise cell viability. We used a train of 8 × 100 µs electric pulses, delivered at 1 Hz with strengths ranging from 400 to 1600 V/cm. We evaluated electrofusion efficiency by dual color microscopy. We determined cell viability, because during electroporation reactive oxygen species are generated affecting cell survival. The novelty of our study is evaluation of the effect of lipid antioxidant α-tocopherol on cell fusion yield and cell viability on mouse B16-F1 cells. Pretreatment with α-tocopherol slowed down dynamic of cell fusion shortly after electroporation. Twenty-four hours later, fusion yields between α-tocopherol treated and untreated cells were comparable. The viability of α-tocopherol pretreated cells was drastically improved. Pretreatment of cells with α-tocopherol improved whole electrofusion process by more than 60%. We believe that α-tocopherol holds great promise to become an important agent to improve cell electrofusion method.

Keywords

Electrofusion Vitamin E In vitro 

Notes

Acknowledgements

The authors acknowledge the financial support from the Slovenian Research Agency (research core funding No. P2-0249 and the project J2-9764 Electrofusion of cells in biology, biotechnology and medicine and young researcher funding). Experiments were performed at infrastructural center at Faculty of electrical engineering part of the network of infrastructural centers at the University of Ljubljana MRIC UL IP-0510.

Compliance with Ethical Standards

Conflict of interest

Authors declare no conflict of interests.

Ethical Approval

This article does not contain any studies with human participants or animals performed by any of the authors.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Faculty of Electrical EngineeringUniversity of LjubljanaLjubljanaSlovenia

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