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Benc M, Strejcek F, Morovic M, Bartkova A, Murin M, Gad A, Bonnet-Garnier A, Percinic FP, Laurincik J. Improving the Quality of Oocytes with the Help of Nucleolotransfer Therapy. Pharmaceuticals (Basel) 2021; 14:ph14040328. [PMID: 33918523 PMCID: PMC8066131 DOI: 10.3390/ph14040328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/26/2021] [Accepted: 03/29/2021] [Indexed: 11/16/2022] Open
Abstract
The nucleolus is an important nucleus sub-organelle found in almost all eukaryotic cells. On the one hand, it is known as a differentiated active site of ribosome biogenesis in somatic cells, but on the other hand, in fully grown oocytes, zygotes, and early embryos (up to the major embryonic genome activation), it is in the form of a particular homogenous and compact structure called a fibrillar sphere. Nowadays, thanks to recent studies, we know many important functions of this, no doubt, interesting membraneless nucleus sub-organelle involved in oocyte maturation, embryonic genome activation, rRNA synthesis, etc. However, many questions are still unexplained and remain a mystery. Our aim is to create a comprehensive overview of the recent knowledge on the fibrillar sphere and envision how this knowledge could be utilized in further research in the field of biotechnology and nucleolotransfer therapy.
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Affiliation(s)
- Michal Benc
- Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Nabrezie mladeze 91, 94974 Nitra, Slovakia; (M.B.); (M.M.); (A.B.); (J.L.)
| | - Frantisek Strejcek
- Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Nabrezie mladeze 91, 94974 Nitra, Slovakia; (M.B.); (M.M.); (A.B.); (J.L.)
- Correspondence: ; Tel.: +421-037-6408-584
| | - Martin Morovic
- Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Nabrezie mladeze 91, 94974 Nitra, Slovakia; (M.B.); (M.M.); (A.B.); (J.L.)
| | - Alexandra Bartkova
- Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Nabrezie mladeze 91, 94974 Nitra, Slovakia; (M.B.); (M.M.); (A.B.); (J.L.)
- Institute of Animal Physiology and Genetics, The Czech Academy of Sciences, 27721 Libechov, Czech Republic; (M.M.); (A.G.)
| | - Matej Murin
- Institute of Animal Physiology and Genetics, The Czech Academy of Sciences, 27721 Libechov, Czech Republic; (M.M.); (A.G.)
| | - Ahmed Gad
- Institute of Animal Physiology and Genetics, The Czech Academy of Sciences, 27721 Libechov, Czech Republic; (M.M.); (A.G.)
| | - Amelie Bonnet-Garnier
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350 Jouy-en-Josas, France;
- Ecole Nationale Vétérinaire d’Alfort, BREED, 94700 Maisons-Alfort, France
| | - Florina Popovska Percinic
- Faculty of Veterinary Medicine, St. Cyril and Methodius University in Skopje, 1000 Skopje, North Macedonia;
| | - Jozef Laurincik
- Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Nabrezie mladeze 91, 94974 Nitra, Slovakia; (M.B.); (M.M.); (A.B.); (J.L.)
- Institute of Animal Physiology and Genetics, The Czech Academy of Sciences, 27721 Libechov, Czech Republic; (M.M.); (A.G.)
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NAKAGAWA S, MAEDOMARI N, KIKUCHI K, NAGAI T, MIYANO T, FULKA JR J, MANABE N. Vitrification of Fully Grown and Growing Porcine Oocytes Using Germinal Vesicle Transfer. J Reprod Dev 2011; 57:335-41. [DOI: 10.1262/jrd.10-177h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Shoma NAKAGAWA
- Animal Resource Science Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo
- Institute of Animal Science
| | - Naoki MAEDOMARI
- Laboratory of Animal Reproduction, School of Veterinary Medicine, Azabu University
| | - Kazuhiro KIKUCHI
- Division of Animal Sciences, National Institute of Agrobiological Sciences
| | - Takashi NAGAI
- National Institute of Livestock and Grassland Science
| | - Takashi MIYANO
- Graduate School of Agricultural Science, Kobe University
| | | | - Noboru MANABE
- Animal Resource Science Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo
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FULKA H, LANGEROVA A, BARNETOVA I, NOVAKOVA Z, MOSKO T, FULKA, JR J. How to Repair the Oocyte and Zygote? J Reprod Dev 2009; 55:583-7. [DOI: 10.1262/jrd.09-085h] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
| | | | | | | | | | - Josef FULKA, JR
- Institute of Animal Science
- Center for Cell Therapy and Tissue Repair
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Ledda S, Bogliolo L, Succu S, Ariu F, Bebbere D, Leoni GG, Naitana S. Oocyte cryopreservation: oocyte assessment and strategies for improving survival. Reprod Fertil Dev 2007; 19:13-23. [PMID: 17389131 DOI: 10.1071/rd06126] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Despite significant progress in cryopreservation of mammalian oocytes and embryos, many of the molecular and biochemical events that underlie this technology are poorly understood. In recent years, researchers have focused on obtaining viable oocytes that are developmentally competent. Even under the most favourable conditions, experimental approaches have achieved only limited success compared with fresh oocytes used in routine in vitro embryo production. Chilling injuries and toxic effects of the cryoprotectants are the major adverse consequences following cryoprocedures. To overcome these problems, different strategies have been developed for improving cryopreservation results. These strategies include reducing container volumes, increasing the thermal gradient, changing the cell surface/volume ratio, enhancing cryotolerance by supplementation with various additives or modifying the lipid composition of the oocyte membrane. In order to develop new strategies for reducing the various forms of stress associated with oocyte cryopreservation, it is fundamental to gain a better understanding of the major changes responsible for poor post-thaw survival. With this knowledge, we hope that oocyte cryostorage will become a fully reliable reproductive technique in the near future.
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Affiliation(s)
- Sergio Ledda
- Department of Animal Biology, Veterinary Faculty, University of Sassari, 07100 Sassari, Italy.
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Fulka H, Fulka J. The Use of Micromanipulation Methods as a Tool to Prevention of Transmission of Mutated Mitochondrial DNA. Curr Top Dev Biol 2007; 77:187-211. [PMID: 17222704 DOI: 10.1016/s0070-2153(06)77007-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The introduction of different micromanipulation techniques into reproductive and developmental biology has helped us not only to answer many essential biological questions but it is now evident that these techniques also have wide practical applications. In human-assisted reproduction, the most commonly used approach is the injection of a donor sperm into the oocyte cytoplasm--intracytoplasmic sperm injection. It is, however, speculated that with these techniques it would be also possible to improve the oocyte developmental potential especially in those cases when the quality of the cytoplasm is rather poor and thus its function is compromised. Another important application would be the elimination of mutated mitochondrial DNA (mtDNA) by transferring the nuclear material from an abnormal oocyte into a healthy donor oocyte cytoplast. Some of these techniques were already successfully tested in experimental animals, but it is evident that before their introduction into human medicine many questions must be answered, and we must be sure that these approaches are absolutely or almost absolutely safe. In our contribution, we will be specifically oriented to the nuclear (nuclear material) replacement approaches that could be potentially used to prevent the transmission of mutated mtDNA from mother to offspring. Because these techniques are very delicate, some training with oocytes from other species other than human is strongly recommended.
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Affiliation(s)
- Helena Fulka
- Institute of Experimental Medicine, Videnska 1083, CS-142 20 Prague 10, Czech Republic
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Abstract
In assisted human reproduction, the cytoplasm of oocytes recovered from follicles is often abnormal. Its lower quality, especially in older patients, may be responsible for certain chromosomal abnormalities or developmental arrest. Thus, the deficiency of some vital molecules, which are necessary for oocyte maturation, can be the cause of infertility in women. Moreover, mutated mitochondrial DNA (mtDNA) that is located in the oocyte cytoplasm might be transmitted to offspring. With the advance of new micromanipulation techniques like the oocyte nucleus replacement or cytoplasmic transfer, some of these abnormalities could be theoretically eliminated. In this review, we briefly discuss some of these approaches and their potential use in assisted human reproduction.
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Affiliation(s)
- J Fulka
- Center for Cell Therapy and Tissue Repair, Prague, Czech Republic.
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