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.
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References
Abidor IG, Sowers AE (1992) Kinetics and mechanism of cell membrane electrofusion. Biophys J 61:1557
Ahkong QF, Fisher D, Tampion W, Lucy JA (1973) The fusion of erythrocytes by fatty acids, esters, retinol and α-tocopherol. Biochem J 136:147–155
Ahmed MS, Bae Y-S (2014) Dendritic cell-based therapeutic cancer vaccines: past, present and future. Clin Exp Vaccine Res 3:113. https://doi.org/10.7774/cevr.2014.3.2.113
Aranda FJ, Sánchez-Migallón MP, Gómez-Fernández JC (1996) Influence of α-tocopherol incorporation on Ca2+-induced fusion of phosphatidylserine vesicles. Arch Biochem Biophys 333:394–400
Biedinger U, Bickert C, Youngman RJ, Schnabl H (1991) The formation of free lipid radicals during the electromanipulation of protoplasts (Vicia faba). Bot Acta 104:217–221. https://doi.org/10.1111/j.1438-8677.1991.tb00220.x
Bonnafous P, Vernhes M-C, Teissié J, Gabriel B (1999) The generation of reactive-oxygen species associated with long-lasting pulse-induced electropermeabilisation of mammalian cells is based on a non-destructive alteration of the plasma membrane. Biochim Biophys Acta Biomembranes 1461:123–134
Chernomordik LV, Kozlov MM (2008) Mechanics of membrane fusion. Nat Struct Mol Biol 15:675–683. https://doi.org/10.1038/nsmb.1455
Chernomordik LV, Kozlov MM (2003) Protein-lipid interplay in fusion and fission of biological membranes. Annu Rev Biochem 72:175–207. https://doi.org/10.1146/annurev.biochem.72.121801.161504
Creutz CE (1981) Cis-Unsaturated fatty acids induce the fusion of chromaffin granules aggregated by synexin. J Cell Biol 91:247–256
Dannull J, Tan C, Farrell C, Wang C, Pruitt S, Nair SK, Lee WT (2015) Gene expression profile of dendritic cell-tumor cell hybrids determined by microarrays and its implications for cancer immunotherapy. J Immunol Res. 2015, 1–10. https://doi.org/10.1155/2015/789136
Dawaliby R, Trubbia C, Delporte C, Noyon C, Ruysschaert J-M, Van Antwerpen P, Govaerts C (2016) Phosphatidylethanolamine is a key regulator of membrane fluidity in eukaryotic cells. J Biol Chem 291:3658–3667. https://doi.org/10.1074/jbc.M115.706523
Gabriel B, Teissie J (1994) Generation of reactive-oxygen species induced by electropermeabilization of Chinese hamster ovary cells and their consequence on cell viability. Eur J Biochem 223:25–33. https://doi.org/10.1111/j.1432-1033.1994.tb18962.x
Gong J, Koido S, Calderwood SK (2008) Cell fusion: from hybridoma to dendritic cell-based vaccine. Expert Rev Vaccines 7:1055–1068. https://doi.org/10.1586/14760584.7.7.1055
Halliwell B (2011) Free radicals and antioxidants—quo vadis? Trends Pharmacol Sci 32:125–130. https://doi.org/10.1016/j.tips.2010.12.002
Howard AC, McNeil AK, McNeil PL (2011) Promotion of plasma membrane repair by vitamin E. Nat Commun 2:597. https://doi.org/10.1038/ncomms1594
Hu N, Yang J, Joo SW, Banerjee AN, Qian S (2013) Cell electrofusion in microfluidic devices: a review. Sens Actuators B Chem 178:63–85. https://doi.org/10.1016/j.snb.2012.12.034
Irie A, Yamamoto K, Miki Y, Murakami M (2017) Phosphatidylethanolamine dynamics are required for osteoclast fusion. Sci Rep 7:46715. https://doi.org/10.1038/srep46715
Kanduser M, Sentjurc M, Miklavcic D (2008) The temperature effect during pulse application on cell membrane fluidity and permeabilization. Bioelectrochemistry 74:52–57. https://doi.org/10.1016/j.bioelechem.2008.04.012
Kanduser M, Usaj M (2014) Cell electrofusion: past and future perspectives for antibody production and cancer cell vaccines. Expert Opin Drug Deliv 11:1885–1898. https://doi.org/10.1517/17425247.2014.938632
Kotnik T, Miklavcic D, Mir LM (2001) Cell membrane electropermeabilization by symmetrical bipolar rectangular pulses. Part II. Reduced electrolytic contamination. Bioelectrochemistry Amst Neth 54:91–95
Kozlovsky Y, Chernomordik LV, Kozlov MM (2002) Lipid intermediates in membrane fusion: formation, structure, and decay of hemifusion diaphragm. Biophys J 83:2634–2651. https://doi.org/10.1016/S0006-3495(02)75274-0
Kozlovsky Y, Kozlov MM (2002) Stalk model of membrane fusion: solution of energy crisis. Biophys J 82:882–895
Kreutzberger AJB, Kiessling V, Liang B, Yang S-T, Castle JD, Tamm LK (2017) Asymmetric phosphatidylethanolamine distribution controls fusion pore lifetime and probability. Biophys J 113:1912–1915. https://doi.org/10.1016/j.bpj.2017.09.014
Lu Y-T, Pendharkar GP, Lu C-H, Chang C-M, Liu C-H (2015) A microfluidic approach towards hybridoma generation for cancer immunotherapy. Oncotarget 6:38764–38776
Maccarrone M, Bladergroen M, Rosato N, Agro A (1995) Role of lipid-peroxidation in electroporation-induced cell-permeability. Biochem Biophys Res Commun 209:417–425. https://doi.org/10.1006/bbrc.1995.1519
Markelc B, Tevz G, Cemazar M, Kranjc S, Lavrencak J, Zegura B, Teissie J, Sersa G (2012) Muscle gene electrotransfer is increased by the antioxidant tempol in mice. Gene Ther 19:312–320. https://doi.org/10.1038/gt.2011.97
Neumann E, Schaeferridder M, Wang Y, Hofschneider P (1982) Gene-transfer into mouse lyoma cells by electroporation in high electric-fields. Embo J 1:841–845
Pinho MP, Sundarasetty BS, Bergami-Santos PC, Steponavicius-Cruz K, Ferreira AK, Stripecke R, Barbuto JAM (2016) Dendritic-tumor cell hybrids induce tumor-specific immune responses more effectively than the simple mixture of dendritic and tumor cells. Cytotherapy 18:570–580. https://doi.org/10.1016/j.jcyt.2016.01.005
Ramos C, Bonato D, Winterhalter M, Stegmann T, Teissié J (2002) Spontaneous lipid vesicle fusion with electropermeabilized cells. FEBS Lett 518:135–138
Rems L, Ušaj M, Kandušer M, Reberšek M, Miklavčič D, Pucihar G (2013) Cell electrofusion using nanosecond electric pulses. Sci Rep 3. https://doi.org/10.1038/srep03382
Rols MP, Teissie J (1989) Ionic-strength modulation of electrically induced permeabilization and associated fusion of mammalian cells. FEBS J 179:109–115
Sánchez-Migallón MP, Aranda FJ, Gómez-Fernández JC (1996) Interaction between α-tocopherol and heteroacid phosphatidylcholines with different amounts of unsaturation. Biochim Biophys Acta BBA-Biomembr 1279:251–258
Sies H (1993) Strategies of antioxidant defense. Eur J Biochem 215:213–219. https://doi.org/10.1111/j.1432-1033.1993.tb18025.x
Sukhorukov VL, Reuss R, Endter JM, Fehrmann S, Katsen-Globa A, Geßner P, Steinbach A, Müller KJ, Karpas A, Zimmermann U, Zimmermann H (2006) A biophysical approach to the optimisation of dendritic-tumour cell electrofusion. Biochem Biophys Res Commun 346:829–839. https://doi.org/10.1016/j.bbrc.2006.05.193
Teissie J, Knutson V, Tsong T, Lane M (1982) Electric pulse-induced fusion of 3T3 cells in monolayer culture. Science 216:537–538. https://doi.org/10.1126/science.7071601
Tomita M, Tsumoto K (2011) Hybridoma technologies for antibody production. Immunotherapy 3:371–380. https://doi.org/10.2217/imt.11.4
Usaj M, Flisar K, Miklavcic D, Kanduser M (2013) Electrofusion of B16-F1 and CHO cells: the comparison of the pulse first and contact first protocols. Bioelectrochemistry 89:34–41. https://doi.org/10.1016/j.bioelechem.2012.09.001
Ušaj M, Kandušer M (2015) Modified adherence method (MAM) for electrofusion of anchorage-dependent cells. In: Pfannkuche K (ed) Cell fusion. Springer, New York, pp 203–216. https://doi.org/10.1007/978-1-4939-2703-6_15
Usaj M, Kanduser M (2012) The systematic study of the electroporation and electrofusion of B16-F1 and CHO cells in isotonic and hypotonic buffer. J Membr Biol 245:583–590. https://doi.org/10.1007/s00232-012-9470-2
Ušaj M, Trontelj K, Hudej R, Kandušer M, Miklavčič D (2009) Cell size dynamics and viability of cells exposed to hypotonic treatment and electroporation for electrofusion optimization. Radiol Oncol 43. https://doi.org/10.2478/v10019-009-0017-9
Usaj M, Trontelj K, Hudej R, Kanduser M, Miklavcic D (2009) Cell size dynamics and viability of cells exposed to hypotonic treatment and electroporation for electrofusion optimization. Radiol Oncol 43:108–119. https://doi.org/10.2478/v10019-009-0017-9
Ušaj M, Trontelj K, Miklavčič D, Kandušer M (2010) Cell–cell electrofusion: optimization of electric field amplitude and hypotonic treatment for mouse melanoma (B16-F1) and Chinese hamster ovary (CHO) cells. J Membr Biol 236:107–116. https://doi.org/10.1007/s00232-010-9272-3
Wang X, Ping (1999) Vitamin E and its function in membranes. Prog Lipid Res 38:309–336. https://doi.org/10.1016/S0163-7827(99)00008-9
Wolf R (1998) Vitamin E: the radical protector. J Eur Acad Dermatol Venereol 10:103–117. https://doi.org/10.1016/S0926-9959(97)00103-7
Wu C, Chen R, Liu Y, Yu Z, Jiang Y, Cheng X (2017) A planar dielectrophoresis-based chip for high-throughput cell pairing. Lab Chip 17:4008–4014. https://doi.org/10.1039/C7LC01082F
Zimmermann U (1982) Electric field-mediated fusion and related electrical phenomena. Biochim Biophys Acta 694:227–277. https://doi.org/10.1016/0304-4157(82)90007-7
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.
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Kanduser, M., Kokalj Imsirovic, M. & Usaj, M. The Effect of Lipid Antioxidant α-Tocopherol on Cell Viability and Electrofusion Yield of B16-F1 Cells In Vitro. J Membrane Biol 252, 105–114 (2019). https://doi.org/10.1007/s00232-019-00059-4
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DOI: https://doi.org/10.1007/s00232-019-00059-4