Effects of Cryoprotectant, Warming Solution and Removal of Lipid on Viability of Porcine Nuclear Transfer Embryos Vitrified by Open Pulled Straw Method

  • Cong, Pei-Qing (Research Center for Transgenic Cloned Pigs Chungnam National University) ;
  • Song, Eun-Sook (Research Center for Transgenic Cloned Pigs Chungnam National University) ;
  • Kim, Eui-Sook (Research Center for Transgenic Cloned Pigs Chungnam National University) ;
  • Li, Zhao-Hua (Research Center for Transgenic Cloned Pigs Chungnam National University) ;
  • Zhang, Yong-Hua (Research Center for Transgenic Cloned Pigs Chungnam National University) ;
  • Lee, Jang-Mi (Research Center for Transgenic Cloned Pigs Chungnam National University) ;
  • Yi, Young-Joo (Research Center for Transgenic Cloned Pigs Chungnam National University) ;
  • Park, Chang-Sik (Research Center for Transgenic Cloned Pigs Chungnam National University)
  • Published : 2007.06.30

Abstract

This study was carried out to investigate the effects of cryoprotectants, warming solution and removal of lipid on open pulled straw vitrification (OPS) method of porcine embryos produced by nuclear transfer (NT) of fetal fibroblasts. All solutions used during vitrification were prepared with holding medium consisting of 25 mM Hepes buffered TCM199 medium containing 20% fetal bovine serum (FBS) at $38.5^{\circ}C$. The blastocysts derived from NT with or without lipid were vitrified in each medium of different concentrations of dimethyl sulfoxide (DMSO) and ethylene glycol (EG). Also, blastocysts after cryopreservation were warmed into different concentrations of sucrose in warming solution. The optimal concentrations of cryoprotectants in vitrification solution were 10% DMSO + 10% EG in vitrification solution 1 (VS1) and 20% DMSO + 20% EG in vitrification solution 2 (VS2). The optimal concentrations of sucrose were 0.3 M sucrose in warming solution 1 (WS1) and 0.15 M sucrose in warming solution 2 (WS2). lipid removal from oocytes before NT enhanced the viability of NT embryos after vitrification. Our results show that use of the OPS method in conjunction with lipid removal provides effective cryopreservation of porcine nuclear transfer embryos.

Keywords

References

  1. Albarracin JL, Morato R, Rojas C, Mogas T (2005): Effects of vitrification in open pulled straws on the cytology of in vitro matured prepubertal and adult bovine oocytes. Theriogenology 63:890-901 https://doi.org/10.1016/j.theriogenology.2004.05.010
  2. Beebe LFS, Cameron RDA, Blackshaw AW, Higgins A, Nottle MB (2002): Piglets born from centrifuged and vitrified early and peri-hatching blastocysts. Theriogenology 57:2155-2165 https://doi.org/10.1016/S0093-691X(01)00720-8
  3. Berthelot F, Martinat-Botte' F, Locatelli A, Perreau C, Terqui M (2000): Piglets born after vitrification of embryos using the open pulled straw method. Cryobiology 41:116-124 https://doi.org/10.1006/cryo.2000.2273
  4. Betthauser J, Forsberg E, Augenstein M, Childs L, Eilertsen K, Enos J, Forsythe T, Golueke P, Jurgella G, Koppang R, Lesmeister T, Mallon K, Mell G, Misica P, Pace M, Pfister-Genskow M, Strelchenko N, Voelker G, Watt S, Thompson S, Bishop M (2000): Production of cloned pigs from in vitro systems. Nature Biotechnology 18:1055-1059 https://doi.org/10.1038/80242
  5. Boquest AC, Grupen CG, Harrison SJ, McIlfatrick SM, Ashman RJ, d'Apice AJ, Nottle MB (2002): Production of cloned pigs from cultured fetal fibroblast cells. Biol Reprod 66:1283-1287 https://doi.org/10.1095/biolreprod66.5.1283
  6. Cuello C, Antonia Gil M, Parrilla I, Tornel J, Vazquez JM, Roca J, Berthelot F, Marinat-Bottẻ. F (2004): Vitrification of porcine embryos at various developmental stages using different ultra-rapid cooling procedures. Theriogenology 62:353-361 https://doi.org/10.1016/j.theriogenology.2003.10.007
  7. Dobrinsky JR, Pursel VG, Long CR, Johnson LA (2000): Birth of piglets after transfer of embryos cryopreserved by cytoskeletal stabilization and vitrification. Biol Reprod 62:564-570 https://doi.org/10.1095/biolreprod62.3.564
  8. Dobrinsky JR (2002): Advancements in cryopreservation of domestic animal embryos. Theriogenology 57:285-302 https://doi.org/10.1016/S0093-691X(01)00672-0
  9. Hoshino Y, Uchida M, Shimatsu Y, Miyake M, Nagao Y, Minami N, Yamada M, Mai H (2005): Developmental competence of somatic cell nuclear transfer embryos reconstructed from oocytes matured in vitro with follicle shells in miniature pig. Cloning Stem Cells 7:17-26 https://doi.org/10.1089/clo.2005.7.17
  10. Isachenko V, Folch J, Isachenko E, Nawroth F, Krivokharchenko A, Vajta G, Dattena M, Alabart JL (2003): Double vitrification of rat embryos at different developmental stages using an identical protocol. Theriogenology 60:445-452 https://doi.org/10.1016/S0093-691X(03)00039-6
  11. Isachenko V, Montag M, Isachenko E, van der Ven H (2005): Vitrification of mouse pronuclear embryos after polar body biopsy without direct contact with liquid nitrogen. Fertil Steril 84:1011-1016 https://doi.org/10.1016/j.fertnstert.2005.04.046
  12. Kasai M (1997): Vitrification: refined strategy for the cryopreservation of mammalian embryos. J Mamm Ova Res 14:17-28 https://doi.org/10.1274/jmor.14.17
  13. Kono T, Suzuki O, Tsunoda Y (1988): Cryopreservation of rat blastocysts by vitrification. Cryobiology 25:170-173 https://doi.org/10.1016/0011-2240(88)90011-9
  14. Leese HJ (1991): Metabolism of the preimplantation mammalian embryos. Oxf Rev Reprod Biol 13:3572
  15. Li R, Lai L, Wax D, Hao Y, Murphy CN, Rieke A, Samuel M, Linville ML, Korte SW, Evans RW, Turk JR, Kang JX, Witt WT, Dai Y, Prather RS (2006): Cloned transgenic swine via in vitro production and cryopreservation. Biol Reprod 75:226-230 https://doi.org/10.1095/biolreprod.106.052514
  16. Men HS, Agca Y, Critser ES, Critser JK (2005): Beneficial effects of serum supplementation during in vitro production of porcine embryos in their ability to survive cryopreservation by open pulled straw vitrification. Theriogenology 64:1340-1349 https://doi.org/10.1016/j.theriogenology.2005.02.013
  17. Misumi K, Suzuki M, Sato S, Saito N (2003): Successful production of piglets derived from vitrified morulae and early blastocysts using a microdroplet method. Theriogenology 60:253-260 https://doi.org/10.1016/S0093-691X(02)01364-X
  18. Moussa M, Bersinger I, Doligez P, Guignot F, Duchamp G, Vidament M, Mermillod P, Bruyas J (2005): In vitro comparisons of two cryopreservation techniques for equine embryos: Slow-cooling and open pulled straw (OPS) vitrification. Theriogenology 64:1619-1632 https://doi.org/10.1016/j.theriogenology.2005.04.001
  19. Nagashima H, Kashiwazaki N, Ashman RJ, Grupen CG, Seamark RF, Nottle MB (1994): Removal of cytoplasmic lipid enhances the tolerance of porcine embryos to chilling. Biol Reprod 51:618-622 https://doi.org/10.1095/biolreprod51.4.618
  20. Nagashima H, Kashiwazaki N, Ashman R, Grupen CG, Nottle MB (1995): Cryopreservation of porcine embryos. Nature 374:416 https://doi.org/10.1038/374416a0
  21. Naik BR, Rao BS, Vagdevi R, Gnanprakash M, Amarnath D, Rao VH (2005): Conventional slow freezing, vitrification and open pulled straw (OPS) vitrification of rabbit embryos. Anim Reprod Sci 86:329-338 https://doi.org/10.1016/j.anireprosci.2004.07.008
  22. Niimura S, Ishida K (1980): Histochemical observation of lipid droplets in mammalian eggs during early development. Jpn J Anim Reprod 26:46-49 https://doi.org/10.1262/jrd1977.26.46
  23. Polejaeva IA, Chen SH, Vaught TD, Page RL, Mullins J, Ball S, Dai YF, Boone J, Walker S, Ayares DL, Colman A, Campbell KHS (2000): Cloned pigs produced by nuclear transfer from adult somatic cells. Nature 407:86-90 https://doi.org/10.1038/35024082
  24. Pollard JW, Leibo SP (1994): Chilling sensitivity of mammalian embryos. Theriogenology 41:101-106 https://doi.org/10.1016/S0093-691X(05)80054-8
  25. Vajta G, Holm P, Greve T, Callesen H (1997): Vitrification of porcine embryos using the open pulled straw (OPS) method. Acta Vet Scand 38:349-352
  26. Vajta G, Holm P, Kuwayama M, Booth PJ, Jacobsen H, Greve T, Callesen H (1998): Open pulled straw (OPS) vitrification: A new way to reduce cryoinjuries of bovine ova and embryos. Mol Reprod Dev 51:53-58 https://doi.org/10.1002/(SICI)1098-2795(199809)51:1<53::AID-MRD6>3.0.CO;2-V
  27. Wilmut I (1972): The low temperature preservation of mammalian embryos. J Reprod Fertil 31:513-514 https://doi.org/10.1530/jrf.0.0310513