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Honda A, Choijookhuu N, Izu H, Kawano Y, Inokuchi M, Honsho K, Lee AR, Nabekura H, Ohta H, Tsukiyama T, Ohinata Y, Kuroiwa A, Hishikawa Y, Saitou M, Jogahara T, Koshimoto C. Flexible adaptation of male germ cells from female iPSCs of endangered Tokudaia osimensis. Sci Adv 2017; 3:e1602179. [PMID: 28508054 PMCID: PMC5429033 DOI: 10.1126/sciadv.1602179] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Accepted: 02/27/2017] [Indexed: 06/07/2023]
Abstract
In mammals, the Y chromosome strictly influences the maintenance of male germ cells. Almost all mammalian species require genetic contributors to generate testes. An endangered species, Tokudaia osimensis, has a unique sex chromosome composition XO/XO, and genetic differences between males and females have not been confirmed. Although a distinctive sex-determining mechanism may exist in T. osimensis, it has been difficult to examine thoroughly in this rare animal species. To elucidate the discriminative sex-determining mechanism in T. osimensis and to find a strategy to prevent its possible extinction, we have established induced pluripotent stem cells (iPSCs) and derived interspecific chimeras using mice as the hosts and recipients. Generated iPSCs are considered to be in the so-called "true naïve" state, and T. osimensis iPSCs may contribute as interspecific chimeras to several different tissues and cells in live animals. Surprisingly, female T. osimensis iPSCs not only contributed to the female germ line in the interspecific mouse ovary but also differentiated into spermatocytes and spermatids that survived in the adult interspecific mouse testes. Thus, T. osimensis cells have high sexual plasticity through which female somatic cells can be converted to male germline cells. These findings suggest flexibility in T. osimensis cells, which can adapt their germ cell sex to the gonadal niche. The probable reduction of the extinction risk of an endangered species through the use of iPSCs is indicated by this study.
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Affiliation(s)
- Arata Honda
- Organization for Promotion of Tenure Track, University of Miyazaki, Miyazaki 889-1692, Japan
- RIKEN BioResource Center, Tsukuba, Ibaraki 305-0074, Japan
| | - Narantsog Choijookhuu
- Department of Histochemistry and Cell Biology, Department of Anatomy, Faculty of Medicine, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Haruna Izu
- Organization for Promotion of Tenure Track, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Yoshihiro Kawano
- Organization for Promotion of Tenure Track, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Mizuho Inokuchi
- Organization for Promotion of Tenure Track, University of Miyazaki, Miyazaki 889-1692, Japan
- Division of Bio-Resources, Frontier Science Research Center, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Kimiko Honsho
- Organization for Promotion of Tenure Track, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Ah-Reum Lee
- Organization for Promotion of Tenure Track, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Hiroki Nabekura
- Organization for Promotion of Tenure Track, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Hiroshi Ohta
- Department of Anatomy and Cell Biology, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan
- Japan Science and Technology Agency (JST), Exploratory Research for Advanced Technology (ERATO), Yoshida-Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Tomoyuki Tsukiyama
- Department of Stem Cells and Human Disease Models, Research Center for Animal Life Science, Shiga University of Medical Science, Seta, Tsukinowa-cho, Otsu, Shiga 520-2192, Japan
| | - Yasuhide Ohinata
- Laboratory for Developmental Genetics, RIKEN Center for Integrative Medical Sciences, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Asato Kuroiwa
- Division of Reproductive and Developmental Biology, Department of Biological Sciences, Faculty of Science, Hokkaido University, Sapporo, Japan
| | - Yoshitaka Hishikawa
- Department of Histochemistry and Cell Biology, Department of Anatomy, Faculty of Medicine, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Mitinori Saitou
- Department of Anatomy and Cell Biology, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan
- Japan Science and Technology Agency (JST), Exploratory Research for Advanced Technology (ERATO), Yoshida-Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan
- Center for iPS Cell Research and Application, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
- Institute for Integrated Cell-Material Sciences, Kyoto University, Yoshida-Ushinomiya-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Takamichi Jogahara
- Division of Bio-Resources, Frontier Science Research Center, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Chihiro Koshimoto
- Division of Bio-Resources, Frontier Science Research Center, University of Miyazaki, Miyazaki 889-1692, Japan
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Honsho K, Hirose M, Hatori M, Yasmin L, Izu H, Matoba S, Togayachi S, Miyoshi H, Sankai T, Ogura A, Honda A. Naïve-like conversion enhances the difference in innate in vitro differentiation capacity between rabbit ES cells and iPS cells. J Reprod Dev 2014; 61:13-9. [PMID: 25345855 PMCID: PMC4354226 DOI: 10.1262/jrd.2014-098] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Accepted: 09/17/2014] [Indexed: 01/27/2023] Open
Abstract
Quality evaluation of pluripotent stem cells using appropriate animal models needs to be improved for human regenerative medicine. Previously, we demonstrated that although the in vitro neural differentiating capacity of rabbit induced pluripotent stem cells (iPSCs) can be mitigated by improving their baseline level of pluripotency, i.e., by converting them into the so-called "naïve-like" state, the effect after such conversion of rabbit embryonic stem cells (ESCs) remains to be elucidated. Here we found that naïve-like conversion enhanced the differences in innate in vitro differentiation capacity between ESCs and iPSCs. Naïve-like rabbit ESCs exhibited several features indicating pluripotency, including the capacity for teratoma formation. They differentiated into mature oligodendrocytes much more effectively (3.3-7.2 times) than naïve-like iPSCs. This suggests an inherent variation in differentiation potential in vitro among PSC lines. When naïve-like ESCs were injected into preimplantation rabbit embryos, although they contributed efficiently to forming the inner cell mass of blastocysts, no chimeric pups were obtained. Thus, in vitro neural differentiation following naïve-like conversion is a promising option for determining the quality of PSCs without the need to demonstrate chimeric contribution. These results provide an opportunity to evaluate which pluripotent stem cells or treatments are best suited for therapeutic use.
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Affiliation(s)
- Kimiko Honsho
- Organization for Promotion of Tenure Track, University of Miyazaki, Miyazaki 889-1692, Japan
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Honda A, Hirose M, Sankai T, Yasmin L, Yuzawa K, Honsho K, Izu H, Iguchi A, Ikawa M, Ogura A. Single-step generation of rabbits carrying a targeted allele of the tyrosinase gene using CRISPR/Cas9. Exp Anim 2014; 64:31-7. [PMID: 25195632 PMCID: PMC4329513 DOI: 10.1538/expanim.14-0034] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Targeted genome editing of nonrodent mammalian species has provided the potential for
highly accurate interventions into gene function in humans and the generation of useful
animal models of human diseases. Here we show successful clustered regularly interspaced
short palindromic repeat (CRISPR) and CRISPR-associated (Cas)-mediated gene targeting via
circular plasmid injection in rabbits. The rabbit tyrosinase gene (TYR)
was effectively disrupted, and we confirmed germline transmission by pronuclear injection
of a circular plasmid expressing humanized Cas9 (hCas9) and single-guide RNA. Direct
injection into pronuclear stage zygotes was possible following an in
vitro validation assay. Neither off-target mutagenesis nor hCas9 transgenesis
was detected in any of the genetically targeted pups and embryos examined. Gene targeting
with this rapid and simplified strategy will help accelerate the development of
translational research using other nonrodent mammalian species.
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Affiliation(s)
- Arata Honda
- Organization for Promotion of Tenure Track, University of Miyazaki, 5200 Kibara, Kiyotake 889-1692; RIKEN BioResource Center, Tsukuba, Ibaraki 305-0074, Japan
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