PMID- 30210017 OWN - NLM STAT- MEDLINE DCOM- 20181211 LR - 20181211 IS - 1469-8730 (Electronic) IS - 0967-1994 (Linking) VI - 26 IP - 4 DP - 2018 Aug TI - Comparison between electroporation and polyfection in pig sperm: efficiency and cell viability implications. PG - 286-293 LID - 10.1017/S0967199418000205 [doi] AB - SummaryThe aim of this study was to optimize protocols for electroporation (EP) and polyfection (PLF) using polyethyleneimine (PEI) for pig sperm transfection and to determine which method was the most efficient. For EP standardization, different voltages, amounts and times of electric pulses were tested using propidium iodide (PI) as reporter. For PLF standardization, different concentrations of fluorescein isothiocyanate (FITC)-labelled PEI (PEI/FITC) were incubated with sperm for different periods of time. Flow cytometry was performed to evaluate the best protocol in terms of cell viability, including cytoplasmic membrane, acrosome, chromatin integrities and mitochondrial potential using the FITC probe, PI, acridine orange (AO) and JC1. Transfections with the plasmid pmhyGENIE-5 were carried out under optimum conditions for each procedure (EP: 500 volts, 500 mus and two pulses; PLF: PEI 0.5 mg/ml and incubation time 10 min). Transfection efficacy was assessed by fluorescence in situ hybridization (FISH). A lower transfection rate was observed for sperm in the control group (17.8%) compared with EP (36.7%), with PLF (76.8%) being the most efficient. These results suggest that the EP and PEI could be an efficient and low cost transfection method for swine sperm. Notably, treated cells showed higher plasmatic the membrane damage (PMD) and/or acrosome damage (AD) indexes, therefore the combination of this procedure with biotechniques that facilitate fecundation (i.e. in vitro fertilization or intracytoplasmic sperm injection) or even inclusion of antioxidant or anti-apoptotic drugs to improve spermatozoa viability would be important. FAU - da Silva, Zigomar AU - da Silva Z AUID- ORCID: 0000-0002-4356-8910 AD - 2Santa Catarina State University.College of Agriculture and Veterinary - CAV,Av. Luiz de Camoes,2090,Conta Dinheiro,CEP: 88.520-000,Lages City,SC,Brazil. FAU - de Souza, Andressa Pereira AU - de Souza AP AD - 2Santa Catarina State University.College of Agriculture and Veterinary - CAV,Av. Luiz de Camoes,2090,Conta Dinheiro,CEP: 88.520-000,Lages City,SC,Brazil. FAU - Pandolfi, Jose Rodrigo Claudio AU - Pandolfi JRC AD - 1Brazilian Agricultural Research Corporation,Embrapa Swine and Poultry,13 BR-153, Km 110,Tamandua District,Post Box: 321 CEP: 89715-899,Concordia, SC.Brazil. FAU - da Fonseca, Francisco Noe AU - da Fonseca FN AD - 1Brazilian Agricultural Research Corporation,Embrapa Swine and Poultry,13 BR-153, Km 110,Tamandua District,Post Box: 321 CEP: 89715-899,Concordia, SC.Brazil. FAU - da Veiga Lima-Rosa, Carlos Andre AU - da Veiga Lima-Rosa CA AD - 4Santa Catarina State University,College of Southern Region - Ceres,Street Cel. Fernandes Martins,270,Progresso,CEP: 88.790-000,Laguna City,SC,Brazil. FAU - Marques, Mariana Groke AU - Marques MG AD - 1Brazilian Agricultural Research Corporation,Embrapa Swine and Poultry,13 BR-153, Km 110,Tamandua District,Post Box: 321 CEP: 89715-899,Concordia, SC.Brazil. LA - eng PT - Comparative Study PT - Journal Article DEP - 20180913 PL - England TA - Zygote JT - Zygote (Cambridge, England) JID - 9309124 RN - 9002-98-6 (Polyethyleneimine) SB - IM MH - Animals MH - Cell Survival MH - Electroporation/*veterinary MH - Fertilization in Vitro MH - Male MH - Polyethyleneimine/*chemistry MH - Semen Preservation/*veterinary MH - Sperm Motility MH - Spermatozoa/*cytology/physiology MH - Swine MH - Transfection/*veterinary OTO - NOTNLM OT - Electroporation OT - Flow cytometry OT - Pig OT - Polyethyleneimine OT - Sperm viability EDAT- 2018/09/14 06:00 MHDA- 2018/12/12 06:00 CRDT- 2018/09/14 06:00 PHST- 2018/09/14 06:00 [pubmed] PHST- 2018/12/12 06:00 [medline] PHST- 2018/09/14 06:00 [entrez] AID - S0967199418000205 [pii] AID - 10.1017/S0967199418000205 [doi] PST - ppublish SO - Zygote. 2018 Aug;26(4):286-293. doi: 10.1017/S0967199418000205. Epub 2018 Sep 13.