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Fukuoka M, Kang W, Katano D, Horiike S, Miyado M, Tanaka M, Miyado K, Yamada M. Overdue Calcium Oscillation Causes Polyspermy but Possibly Permits Normal Development in Mouse Eggs. Int J Mol Sci 2023; 25:285. [PMID: 38203456 PMCID: PMC10779150 DOI: 10.3390/ijms25010285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/18/2023] [Accepted: 12/22/2023] [Indexed: 01/12/2024] Open
Abstract
In some non-mammalian eggs, the fusion of one egg and multiple sperm (polyspermy) induces a robust rise in intracellular calcium ion (Ca2+) concentration due to a shortage of inducers carried by a single sperm. Instead, one of the sperm nuclei is selected inside the egg for normal embryogenesis. Polyspermy also occurs during the in vitro fertilization of human eggs; however, the fate of such eggs is still under debate. Hence, the relationship between polyspermy and repetitive Ca2+ increases (Ca2+ oscillation) in mammals remains unknown. To address this issue, we used mouse sperm lacking extramitochondrial citrate synthase (eCS), which functions as a Ca2+ oscillation inducer; its lack causes retarded Ca2+ oscillation initiation (eCs-KO sperm). Elevated sperm concentrations normalize Ca2+ oscillation initiation. As expected, eCS deficiency enhanced polyspermy in both zona pellucida (ZP)-free and ZP-intact eggs despite producing the next generation of eCs-KO males. In conclusion, similarly to non-mammalian eggs, mouse eggs may develop normally under polyspermy conditions caused by problematic Ca2+ oscillation.
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Affiliation(s)
- Mio Fukuoka
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan; (M.F.); (M.T.); (M.Y.)
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo 157-8535, Japan; (W.K.); (D.K.); (S.H.); (M.M.)
| | - Woojin Kang
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo 157-8535, Japan; (W.K.); (D.K.); (S.H.); (M.M.)
| | - Daiki Katano
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo 157-8535, Japan; (W.K.); (D.K.); (S.H.); (M.M.)
| | - Sae Horiike
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo 157-8535, Japan; (W.K.); (D.K.); (S.H.); (M.M.)
| | - Mami Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo 157-8535, Japan; (W.K.); (D.K.); (S.H.); (M.M.)
| | - Mamoru Tanaka
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan; (M.F.); (M.T.); (M.Y.)
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo 157-8535, Japan; (W.K.); (D.K.); (S.H.); (M.M.)
| | - Mitsutoshi Yamada
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan; (M.F.); (M.T.); (M.Y.)
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo 157-8535, Japan; (W.K.); (D.K.); (S.H.); (M.M.)
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Yamatoya K, Nagai Y, Teramoto N, Kang W, Miyado K, Nakata K, Yagi T, Miyamoto Y. Dimethyl Sulfoxide-Free Cryopreservation of Differentiated Human Neuronal Cells. Biopreserv Biobank 2023; 21:631-634. [PMID: 36827090 DOI: 10.1089/bio.2022.0180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023] Open
Abstract
In recent years, cells provided by cell banks and medical facilities have been used for cell therapy, regenerative therapy, and fundamental research. Cryopreservation is an effective means of maintaining stable cell quality over a long period of time. The slow freezing method is most suitable for processing many human cells isolated simultaneously from organs and tissues, but it is necessary to develop a freezing solution for this method. In this study, we report the successful development of a dimethyl sulfoxide (DMSO)-free freezing medium for differentiated neuronal cells. Neuronal differentiation results in the differentiation of undifferentiated SK-N-SH cells into neuronal cells. A basic freezing medium (BFM) was prepared using Dulbecco's modified Eagle's medium, 1 M maltose, and 1% sericin as the essential ingredients, supplemented with 5%-40% propylene glycol (PG). Each BFM supplemented with 5%-40% PG was evaluated in undifferentiated cells. After thawing, BFM supplemented with 10% and 20% PG were 83% and 88% viable, respectively. There was no significant difference between the 10% and 20% PG groups. However, a significant difference was observed when the concentration of PG in the BFM decreased by 5% (5% PG vs. 10% PG; p = 0.0026). Each DMSO-free BFM was evaluated using differentiated neuronal cells. There was no significant difference between the 10% PG BFM and stem-CB-free groups. Viability was significantly different in the 10% glycerol BFM (4.8%) and 10% PG BFM (45%) (p = 0.028). The differentiated cells with 10% PG BFM showed higher adherence to culture dishes than those with 10% glycerol BFM. These results show that BFM containing PG was effective in differentiating neuronal cells. DMSO affects the central nervous system at low concentrations. This report indicates that DMSO is unsuitable for neuronal cells with multipotent differentiation potential. Therefore, it is essential for cell banking and transplantation medicine services to select appropriate cell freezing media.
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Affiliation(s)
- Kenji Yamatoya
- Department of Applied Biological Science, Faculty of Science and Technology, Tokyo University of Science, Noda, Japan
- Laboratory of Genomic Function Engineering, Department of Life Sciences, School of Agriculture, Meiji University, Kanagawa, Japan
| | - Yuya Nagai
- Department of Applied Biological Science, Faculty of Science and Technology, Tokyo University of Science, Noda, Japan
| | - Naozumi Teramoto
- Department of Applied Chemistry, Faculty of Engineering, Chiba Institute of Technology, Narashino, Japan
| | - Woojin Kang
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Setagaya-ku, Japan
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Setagaya-ku, Japan
| | - Kazuya Nakata
- Department of Applied Biological Science, Faculty of Science and Technology, Tokyo University of Science, Noda, Japan
- Division of Sciences for Biological System, Institute of Agriculture, Tokyo University of Agriculture and Technology, Koganei, Japan
| | - Tohru Yagi
- Department of Mechanical Engineering, Tokyo Institute of Technology, Meguro-ku, Japan
| | - Yoshitaka Miyamoto
- Department of Applied Chemistry, Faculty of Engineering, Chiba Institute of Technology, Narashino, Japan
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Setagaya-ku, Japan
- Department of Mechanical Engineering, Tokyo Institute of Technology, Meguro-ku, Japan
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3
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Kang W, Sugiyama K, Katano D, Horiike S, Morimoto H, Sato B, Kawano N, Yamada M, Miyado M, Miyado K. CD9 protects the sperm from cytotoxic factors in the epididymis as extracellular components. MicroPubl Biol 2023; 2023:10.17912/micropub.biology.000950. [PMID: 37799198 PMCID: PMC10550374 DOI: 10.17912/micropub.biology.000950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 08/22/2023] [Accepted: 09/18/2023] [Indexed: 10/07/2023]
Abstract
The mechanism by which seemingly normal sperm cause infertility is still under debate. Although CD9 is expressed in male reproductive tissues, its role in male fertility remains unclear. To address this, we investigated the role of CD9 in analyzing Cd9 -deficient ( Cd9 -KO) male mice. The litter size of Cd9 -KO males was comparable, regardless of mating experience. When Cd9 -KO males experienced their first mating chance, a considerable number of neonates died 48 hours after birth. Electron microscopy reveals the presence of CD9 in the epididymal space. Our results suggest that CD9 contributes to male fertility as an extracellular component.
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Affiliation(s)
- Woojin Kang
- Laboratory Animal Resource Center, Transborder Medical Research Center, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Setagaya-ku, Tokyo, Japan
| | - Kazuki Sugiyama
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Setagaya-ku, Tokyo, Japan
| | - Daiki Katano
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Setagaya-ku, Tokyo, Japan
- Department of Life Sciences, School of Agriculture, Meiji University, Tama-ku, Kawasaki, Kanagawa, Japan
| | - Sae Horiike
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Setagaya-ku, Tokyo, Japan
- Department of Bioscience, Graduate School of Life Science, Tokyo University of Agriculture, Setagaya-ku, Tokyo, Japan
| | - Hiromu Morimoto
- Department of Nutritional Science and Food Safety, Faculty of Applied Bioscience, Tokyo University of Agriculture,Setagaya-ku, Tokyo, Japan
| | - Ban Sato
- Department of Life Sciences, School of Agriculture, Meiji University, Tama-ku, Kawasaki, Kanagawa, Japan
| | - Natsuko Kawano
- Department of Life Sciences, School of Agriculture, Meiji University, Tama-ku, Kawasaki, Kanagawa, Japan
| | - Mitsutoshi Yamada
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Mami Miyado
- Department of Food Science and Human Nutrition, Beppu University, Beppu, Oita, Japan
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Setagaya-ku, Tokyo, Japan
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Setagaya-ku, Tokyo, Japan
- Division of Diversity Research, National Research Institute for Child Health and Development, Setagaya-ku, Tokyo, Japan
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Suzuki M, Nakamura A, Matsumoto Y, Kang W, Ichinose M, Kawano N, Yamada M, Shindo M, Katano D, Saito T, Harada Y, Miyado M, Miyado K. Identification of a syncytin gene in a non-rodent laboratory mammal, Suncus murinus. J Vet Med Sci 2023; 85:912-920. [PMID: 37438116 PMCID: PMC10539813 DOI: 10.1292/jvms.22-0555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/14/2023] Open
Abstract
An endogenous retrovirus-derived membrane protein, syncytin (SYN), contributes to placental function via trophoblast fusion. Multinuclear trophoblasts (syncytiotrophoblasts) physically and functionally mediate the interaction between fetal and maternal vessels in various ways. Suncus murinus (suncus) is a small mammalian species with a pregnancy duration of approximately 30 days, 1.5 times longer than mice. However, the molecular basis for the longer pregnancy duration is unknown. In this study, we first isolated two genes that encoded putative SYN proteins expressed in the suncus placenta, which were named syncytin-1-like proteins 1 and 2 (SYN1L1 and SYN1L2). When their expression vectors were introduced into cultured cells, suncus SYN1L2 was found to be active in cell fusion. Moreover, the SYN1L2 protein was homologous to a SYN1-like protein identified in greater mouse-eared bats (bat SYN1L) and was structurally compared with bat SYN1L and other SYN proteins, implying the presence of structural features of the SYN1L2 protein.
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Affiliation(s)
- Miki Suzuki
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Akihiro Nakamura
- Department of Microbiology, Faculty of Medicine, Saitama Medical University, Saitama, Japan
| | - Yu Matsumoto
- Department of Life Sciences, School of Agriculture, Meiji University, Kanagawa, Japan
| | - Woojin Kang
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Minoru Ichinose
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Natsuko Kawano
- Department of Life Sciences, School of Agriculture, Meiji University, Kanagawa, Japan
| | - Mitsutoshi Yamada
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
| | - Miyuki Shindo
- Division of Laboratory Animal Resources, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Daiki Katano
- Department of Life Sciences, School of Agriculture, Meiji University, Kanagawa, Japan
| | - Takako Saito
- Department of Applied Life Sciences, Faculty of Agriculture, Shizuoka University, Shizuoka, Japan
| | - Yuichirou Harada
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Mami Miyado
- Department of Food and Nutrition, Beppu University, Oita, Japan
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo, Japan
- Division of Diversity Research, National Research Institute for Child Health and Development, Tokyo, Japan
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Sato B, Kim J, Morohoshi K, Kang W, Miyado K, Tsuruta F, Kawano N, Chiba T. Proteasome-Associated Proteins, PA200 and ECPAS, Are Essential for Murine Spermatogenesis. Biomolecules 2023; 13:biom13040586. [PMID: 37189334 DOI: 10.3390/biom13040586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/16/2023] [Accepted: 03/22/2023] [Indexed: 05/17/2023] Open
Abstract
Proteasomes are highly sophisticated protease complexes that degrade non-lysosomal proteins, and their proper regulation ensures various biological functions such as spermatogenesis. The proteasome-associated proteins, PA200 and ECPAS, are predicted to function during spermatogenesis; however, male mice lacking each of these genes sustain fertility, raising the possibility that these proteins complement each other. To address this issue, we explored these possible roles during spermatogenesis by producing mice lacking these genes (double-knockout mice; dKO mice). Expression patterns and quantities were similar throughout spermatogenesis in the testes. In epididymal sperm, PA200 and ECPAS were expressed but were differentially localized to the midpiece and acrosome, respectively. Proteasome activity was considerably reduced in both the testes and epididymides of dKO male mice, resulting in infertility. Mass spectrometric analysis revealed LPIN1 as a target protein for PA200 and ECPAS, which was confirmed via immunoblotting and immunostaining. Furthermore, ultrastructural and microscopic analyses demonstrated that the dKO sperm displayed disorganization of the mitochondrial sheath. Our results indicate that PA200 and ECPAS work cooperatively during spermatogenesis and are essential for male fertility.
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Affiliation(s)
- Ban Sato
- Master's and Doctoral Program in Biology, Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8577, Japan
- Laboratory of Regulatory Biology, Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashimita, Kawasaki 214-8571, Japan
| | - Jiwoo Kim
- College of Biological Sciences, School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8577, Japan
| | - Kazunori Morohoshi
- Laboratory of Regulatory Biology, Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashimita, Kawasaki 214-8571, Japan
| | - Woojin Kang
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya 157-8535, Japan
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya 157-8535, Japan
| | - Fuminori Tsuruta
- Master's and Doctoral Program in Biology, Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8577, Japan
| | - Natsuko Kawano
- Laboratory of Regulatory Biology, Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashimita, Kawasaki 214-8571, Japan
| | - Tomoki Chiba
- Master's and Doctoral Program in Biology, Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8577, Japan
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Katano D, Kang W, Harada Y, Kawano N, Miyado M, Saito T, Fukuoka M, Yamada M, Miyado K. Sodium Hexametaphosphate Serves as an Inducer of Calcium Signaling. Biomolecules 2023; 13:biom13040577. [PMID: 37189325 DOI: 10.3390/biom13040577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/19/2023] [Accepted: 03/21/2023] [Indexed: 05/17/2023] Open
Abstract
In bacteria, polymers of inorganic phosphates, particularly linear polyphosphate, are used as alternative phosphate donors for adenosine triphosphate production. A six-chain form of sodium metaphosphate, sodium hexametaphosphate (SHMP), is believed to have no physiological functions in mammalian cells. In this study, we explored the possible effects of SHMP on mammalian cells, using mouse oocytes, which are useful for observing various spatiotemporal intracellular changes. Fertilization-competent oocytes were isolated from the oviducts of superovulated mice and cultured in an SHMP-containing medium. In the absence of co-incubation with sperm, SHMP-treated oocytes frequently formed pronuclei and developed into two-cell embryos owing to the increase in calcium concentration in the cytoplasm. We discovered an intriguing role for SHMP as an initiator of calcium rise in mouse oocytes, presumably in a wide variety of mammalian cells.
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Affiliation(s)
- Daiki Katano
- Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashimita, Kawasaki 214-8571, Japan
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya 157-8535, Japan
| | - Woojin Kang
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya 157-8535, Japan
- Laboratory Animal Resource Center, Transborder Medical Research Center, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan
| | - Yuichirou Harada
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku 192-0397, Japan
| | - Natsuko Kawano
- Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashimita, Kawasaki 214-8571, Japan
| | - Mami Miyado
- Department of Food and Nutrition, Beppu University, 82 Kita-Ishigaki, Beppu 874-8501, Japan
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya 157-8535, Japan
| | - Takako Saito
- Department of Applied Life Sciences, Faculty of Agriculture, Shizuoka University, 836 Ohya, Shizuoka 422-8529, Japan
- Shizuoka Institute for the Study of Marine Biology and Chemistry, Shizuoka University, 836 Ohya, Shizuoka 422-8529, Japan
| | - Mio Fukuoka
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku 160-8582, Japan
| | - Mitsutoshi Yamada
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku 160-8582, Japan
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya 157-8535, Japan
- Division of Diversity Research, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya 157-8535, Japan
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Takezawa Y, Iwai M, Fujiki Y, Yokomizo R, Kishigami H, Miyado M, Kawano N, Yamada M, Shindo M, Suzuki M, Sato B, Katano D, Kamijo S, Hamatani T, Tanaka M, Umezawa A, Kang W, Miyado K. Embryonic β-Catenin Is Required for Priming of the Uterus to Implantation. J Transl Med 2023; 103:100026. [PMID: 36925206 DOI: 10.1016/j.labinv.2022.100026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 10/04/2022] [Accepted: 11/03/2022] [Indexed: 01/11/2023] Open
Abstract
Repeated implantation failure is a major cause of infertility among healthy women. Uterine β-catenin (CTNNB1) plays a critical role in implantation. However, the role of embryonic CTNNB1 during implantation remains unclear. We addressed this topic by analyzing mice carrying Ctnnb1-deficient (Ctnnb1Δ/Δ) embryos. Ctnnb1Δ/Δ embryos were produced by intercrossing mice bearing Ctnnb1-deficient eggs and sperms. We found that Ctnnb1Δ/Δ embryos developed to the blastocyst stage; thereafter, they were resorbed, leaving empty decidual capsules. Moreover, leukemia inhibitory factor, a uterine factor essential for implantation, was undetectable in Ctnnb1Δ/Δ blastocysts. Furthermore, CDX2, a transcription factor that determines the fate of trophectoderm cells, was not observed in Ctnnb1Δ/Δ blastocysts. Intrauterine injection with uterine fluids (from control mice) and recombinant mouse leukemia inhibitory factor proteins rescued the uterine response to Ctnnb1Δ/Δ blastocysts. These results suggest that embryonic CTNNB1 is required for the secretion of blastocyst-derived factor(s) that open the implantation window, indicating that the uterine response to implantation can be induced using supplemental materials. Therefore, our results may contribute to the discovery of a similar mechanism in humans, leading to a better understanding of the pathogenesis of repeated implantation failure.
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Affiliation(s)
- Youki Takezawa
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Maki Iwai
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
| | - Yukiko Fujiki
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Ryo Yokomizo
- Department of Obstetrics and Gynecology, The Jikei University School of Medicine, Tokyo, Japan
| | - Harue Kishigami
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Mami Miyado
- Department of Food and Nutrition, Beppu University, Oita, Japan; Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Natsuko Kawano
- Department of Life Sciences, School of Agriculture, Meiji University, Kanagawa, Japan
| | - Mitsutoshi Yamada
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
| | - Miyuki Shindo
- Division of Laboratory Animal Resources, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Miki Suzuki
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Ban Sato
- Department of Life Sciences, School of Agriculture, Meiji University, Kanagawa, Japan
| | - Daiki Katano
- Department of Life Sciences, School of Agriculture, Meiji University, Kanagawa, Japan
| | - Shintaro Kamijo
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
| | - Toshio Hamatani
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
| | - Mamoru Tanaka
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
| | - Akihiro Umezawa
- National Research Institute for Child Health and Development, Tokyo, Japan
| | - Woojin Kang
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo, Japan.
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo, Japan.
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8
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Suwatthanarak T, Ito K, Tanaka M, Sugiura K, Hoshino A, Miyamoto Y, Miyado K, Okochi M. A peptide binding to the tetraspanin CD9 reduces cancer metastasis. Biomater Adv 2023; 146:213283. [PMID: 36640525 DOI: 10.1016/j.bioadv.2023.213283] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 11/29/2022] [Accepted: 01/02/2023] [Indexed: 01/07/2023]
Abstract
As an organizer of multi-molecular membrane complexes, the tetraspanin CD9 has been implicated in a number of biological processes, including cancer metastasis, and is a candidate therapeutic target. Here, we evaluated the suppressive effects of an eight-mer CD9-binding peptide (CD9-BP) on cancer cell metastasis and its mechanisms of action. CD9-BP impaired CD9-related functions by adversely affecting the formation of tetraspanin webs-networks composed of CD9 and its partner proteins. The anti-cancer metastasis effect of CD9-BP was evidenced by the in vitro inhibition of cancer cell migration and invasion as well as exosome secretion and uptake, which are essential processes during metastasis. Finally, using a mouse model, we showed that CD9-BP reduced lung metastasis in vivo. These findings provide insight into the mechanism by which CD9-BP inhibits CD9-dependent functions and highlight its potential application as an alternative therapeutic nano-biomaterial for metastatic cancers.
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Affiliation(s)
- Thanawat Suwatthanarak
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan; Siriraj Cancer Center, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Road, Bangkok Noi, Bangkok 10700, Thailand; Department of Surgery, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Road, Bangkok Noi, Bangkok 10700, Thailand
| | - Kazuma Ito
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Masayoshi Tanaka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan; Department of Chemical Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama-shi, Kanagawa 226-8501, Japan
| | - Kei Sugiura
- School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama-shi, Kanagawa 226-8501, Japan
| | - Ayuko Hoshino
- School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama-shi, Kanagawa 226-8501, Japan
| | - Yoshitaka Miyamoto
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo 157-8535, Japan
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo 157-8535, Japan
| | - Mina Okochi
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan.
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9
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Miyamoto Y, Koshidaka Y, Murase K, Kanno S, Noguchi H, Miyado K, Ikeya T, Suzuki S, Yagi T, Teramoto N, Hayashi S. Functional Evaluation of 3D Liver Models Labeled with Polysaccharide Functionalized Magnetic Nanoparticles. Materials (Basel) 2022; 15:7823. [PMID: 36363415 PMCID: PMC9658042 DOI: 10.3390/ma15217823] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/31/2022] [Accepted: 11/03/2022] [Indexed: 06/16/2023]
Abstract
Establishing a rapid in vitro evaluation system for drug screening is essential for the development of new drugs. To reproduce tissues/organs with functions closer to living organisms, in vitro three-dimensional (3D) culture evaluation using microfabrication technology has been reported in recent years. Culture on patterned substrates with controlled hydrophilic and hydrophobic regions (Cell-ableTM) can create 3D liver models (miniature livers) with liver-specific Disse luminal structures and functions. MRI contrast agents are widely used as safe and minimally invasive diagnostic methods. We focused on anionic polysaccharide magnetic iron oxide nanoparticles (Resovist®) and synthesized the four types of nanoparticle derivatives with different properties. Cationic nanoparticles (TMADM) can be used to label target cells in a short time and have been successfully visualized in vivo. In this study, we examined the morphology of various nanoparticles. The morphology of various nanoparticles showed relatively smooth-edged spherical shapes. As 3D liver models, we prepared primary hepatocyte-endothelial cell heterospheroids. The toxicity, CYP3A, and albumin secretory capacity were evaluated in the heterospheroids labeled with various nanoparticles. As the culture period progressed, the heterospheroids labeled with anionic and cationic nanoparticles showed lower liver function than non-labeled heterospheroids. In the future, there is a need to improve the method of creation of artificial 3D liver or to design a low-invasive MRI contrast agent to label the artificial 3D liver.
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Affiliation(s)
- Yoshitaka Miyamoto
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo 157-8535, Japan
- Department of Advanced Medicine in Biotechnology and Robotics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
- Department of Mechanical Engineering, Tokyo Institute of Technology, 12-2-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
- Department of Applied Chemistry, Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan
| | - Yumie Koshidaka
- Department of Advanced Medicine in Biotechnology and Robotics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
- Life Science Research Center, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Katsutoshi Murase
- Nagoya Research Laboratory, Meito Sangyo Co., Ltd., 25-5 Kaechi, Nishibiwajima, Kiyosu, Aichi 452-0067, Japan
| | - Shoichiro Kanno
- Department of Mechanical Engineering, Tokyo Institute of Technology, 12-2-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Hirofumi Noguchi
- Department of Regenerative Medicine, Graduate School of Medicine, University of the Ryukyus, Nishihara-cho, Okinawa 903-0215, Japan
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo 157-8535, Japan
| | - Takeshi Ikeya
- Photosensitive Materials Research Center, Toyo Gosei Co., Ltd., 4-2-1 Wakahagi, Inzai-shi, Chiba 270-1609, Japan
| | - Satoshi Suzuki
- Research Laboratories, HAB Research Organization, Ichikawa General Hospital, 5-11-13 Sugano, Ichikawa, Chiba 272-8513, Japan
| | - Tohru Yagi
- Department of Mechanical Engineering, Tokyo Institute of Technology, 12-2-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Naozumi Teramoto
- Department of Applied Chemistry, Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan
| | - Shuji Hayashi
- Department of Advanced Medicine in Biotechnology and Robotics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
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10
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Kamijo S, Hamatani T, Sasaki H, Suzuki H, Abe A, Inoue O, Iwai M, Ogawa S, Odawara K, Tanaka K, Mikashima M, Suzuki M, Miyado K, Matoba R, Odawara Y, Tanaka M. MicroRNAs secreted by human preimplantation embryos and IVF outcome. Reprod Biol Endocrinol 2022; 20:130. [PMID: 36042522 PMCID: PMC9425991 DOI: 10.1186/s12958-022-00989-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 07/29/2022] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVE To generate an effective embryo prediction model and identify a non-invasive evaluation method by analyzing microRNAs (miRNAs) in embryo culture medium. DESIGN Analysis of microRNA profiles from spent culture medium of blastocysts with good morphology that did or did not result in pregnancy. SETTING Clinical and experimental research. PATIENTS Sixty patients who underwent thawed embryo transfer of blastocysts after intracytoplasmic sperm injection. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) The association of miRNA abundance levels secreted by blastocysts in culture medium and implantation success. RESULTS Our RNA sequencing analysis found a total of 53 differentially expressed miRNAs in the culture media of pregnancy and non-pregnancy groups. Twenty-one miRNAs were analyzed for their potential to predict implantation success. Eight miRNAs (hsa-miR-191-5p, hsa-miR-320a, hsa-miR-92a-3p, hsa-miR-509-3p, hsa-miR-378a-3p, hsa-miR-28-3p, hsa-miR-512-5p, and hsa-miR-181a-5p) were further extracted from the results of a logistic regression analysis of qPCR Ct values. A prediction model for high-quality blastocysts was generated using the eight miRNAs, with an average accuracy of 0.82 by 5-fold cross validation. CONCLUSION We isolated blastocyst miRNAs that may predict implantation success and created a model to predict viable embryos. Increasing the number of investigated cases and further studying the effect of each miRNA on embryonic development is needed to refine the miRNA-based predictive model.
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Affiliation(s)
- Shintaro Kamijo
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Toshio Hamatani
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo, 160-8582, Japan.
| | - Hiroyuki Sasaki
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo, 160-8582, Japan
| | | | - Akane Abe
- Fertility Clinic Tokyo, Tokyo, Japan
| | - Osamu Inoue
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Maki Iwai
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Seiji Ogawa
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo, 160-8582, Japan
| | | | | | | | | | - Kenji Miyado
- Center for Regenerative Medicine, National Center for Child Health and Development (NCCHD), Tokyo, Japan
| | | | | | - Mamoru Tanaka
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo, 160-8582, Japan
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11
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Shindo M, Miyado K, Kang W, Fukami M, Miyado M. Efficient Superovulation and Egg Collection from Mice. Bio Protoc 2022; 12:e4439. [PMID: 35799908 PMCID: PMC9244495 DOI: 10.21769/bioprotoc.4439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 03/08/2022] [Accepted: 05/05/2022] [Indexed: 12/29/2022] Open
Abstract
Superovulation is a method used to reduce the number of mice used per experiment by increasing the egg number. Conventionally, superovulation for obtaining mouse eggs involves the use of equine chorionic gonadotropin (eCG) for stimulation and human CG for induction. Female mice of the C57BL/6 inbred strain spontaneously ovulate approximately 10 eggs. The average number of eggs ovulated using the conventional superovulation method is approximately twice as high as that obtained by spontaneous ovulation. Here, we describe the conventional and non-conventional methods of intraperitoneal injection of superovulation reagents in mice and subsequent egg collection. The non-conventional superovulation method combining anti-inhibin serum (AIS) plus eCG for stimulation is more efficient than conventional superovulation. Appropriate intervals from each injection to sampling induce large numbers of high-quality eggs. Immediately after ovulation, eggs are surrounded by cumulus cells, forming an egg-cumulus complex. These cumulus cells are then removed from the egg-cumulus complex by treatment with hyaluronidase to obtain the exact number of eggs. This protocol is suitable for further manipulations such as intracytoplasmic sperm injection and cryopreservation of eggs, as well as for the analyses of responsivity to superovulation reagents in genetically modified mice obtained by genome editing.
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Affiliation(s)
- Miyuki Shindo
- Division of Laboratory Animal Resources, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
,
*For correspondence:
mailto:
;
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
| | - Woojin Kang
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
| | - Maki Fukami
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
| | - Mami Miyado
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
,
Department of Food and Nutrition, Beppu University, 82 Kita-Ishigaki, Beppu, Oita 874-8501, Japan
,
*For correspondence:
mailto:
;
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12
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Kang W, Katano D, Kawano N, Miyado M, Miyado K. Extra-mitochondrial citrate synthase controls cAMP-dependent pathway during sperm acrosome reaction in mice. MicroPubl Biol 2022; 2022:10.17912/micropub.biology.000579. [PMID: 35663411 PMCID: PMC9160978 DOI: 10.17912/micropub.biology.000579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 05/27/2022] [Accepted: 05/30/2022] [Indexed: 11/06/2022]
Abstract
The sperm consumes adenosine triphosphate (ATP) to maintain the cellular function, viability, acrosome reaction (AR), and motility. Extra-mitochondrial citrate synthase (eCS) catalyzes citrate production in the sperm head, and thus regulates sperm function through ATP synthesis, similarly to CS. This study aimed to investigate how eCS regulates AR. Herein, acrosome-reacted (ARed) sperms were rarely detected on the zona pellucida, and spontaneous ARed sperm in eCs -deficient (KO) sperm remained at low levels even with induced capacitation. Retarded AR of eCs -KO sperm was enhanced by cyclic adenosine 3',5'-monophosphate (cAMP) treatment. In conclusion, eCS regulates AR via a cAMP-dependent pathway, which presumably contributes to sperm metabolism.
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Affiliation(s)
- Woojin Kang
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
,
Correspondence to: Woojin Kang (
)
| | - Daiki Katano
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
,
Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashi-Mita, Kawasaki, Kanagawa 214-8571, Japan
| | - Natsuko Kawano
- Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashi-Mita, Kawasaki, Kanagawa 214-8571, Japan
| | - Mami Miyado
- Department of Food and Nutrition, Beppu University, 82 Kita-Ishigaki, Beppu, Oita 874-8501, Japan
,
Department of Molecular Endocrinology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
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13
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Hayashi Y, Kashio S, Murotomi K, Hino S, Kang W, Miyado K, Nakao M, Miura M, Kobayashi S, Namihira M. Biosynthesis of S-adenosyl-methionine enhances aging-related defects in Drosophila oogenesis. Sci Rep 2022; 12:5593. [PMID: 35379840 PMCID: PMC8979982 DOI: 10.1038/s41598-022-09424-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 03/23/2022] [Indexed: 11/09/2022] Open
Abstract
AbstractTissue aging is a major cause of aging-related disabilities and a shortened life span. Understanding how tissue aging progresses and identifying the factors underlying tissue aging are crucial; however, the mechanism of tissue aging is not fully understood. Here we show that the biosynthesis of S-adenosyl-methionine (SAM), the major cellular donor of methyl group for methylation modifications, potently accelerates the aging-related defects during Drosophila oogenesis. An aging-related increase in the SAM-synthetase (Sam-S) levels in the germline leads to an increase in ovarian SAM levels. Sam-S-dependent biosynthesis of SAM controls aging-related defects in oogenesis through two mechanisms, decreasing the ability to maintain germline stem cells and accelerating the improper formation of egg chambers. Aging-related increases in SAM commonly occur in mouse reproductive tissue and the brain. Therefore, our results raise the possibility suggesting that SAM is the factor related to tissue aging beyond the species and tissues.
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14
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Yamatoya K, Nagai Y, Teramoto N, Kang W, Miyado K, Nakata K, Yagi T, Miyamoto Y. Cryopreservation of undifferentiated and differentiated human neuronal cells. Regen Ther 2022; 19:58-68. [PMID: 35059480 PMCID: PMC8749124 DOI: 10.1016/j.reth.2021.12.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 12/22/2021] [Accepted: 12/23/2021] [Indexed: 12/12/2022] Open
Abstract
The effective use of human-derived cells that are difficult to freeze, such as parenchymal cells and differentiated cells from stem cells, is crucial. A stable supply of damage-sensitive cells, such as differentiated neuronal cells, neurons, and glial cells can contribute considerably to cell therapy. We developed a serum-free freezing solution that is effective for the cryopreservation of differentiated neuronal cells. The quality of the differentiated and undifferentiated SK-N-SH cells was determined based on cell viability, live-cell recovery rate, and morphology of cultured cells, to assess the efficacy of the freezing solutions. The viability and recovery rate of the differentiated SK-N-SH neuronal cells were reduced by approximately 1.5-folds compared to that of the undifferentiated SK-N-SH cells. The viability and recovery rate of the differentiated SK-N-SH cells were remarkably different between the freezing solutions containing 10% DMSO and that containing 10% glycerol. Cryoprotectants such as fetal bovine serum (FBS), antifreeze proteins (sericin), and sugars (maltose), are essential for protecting against freeze damage in differentiated neuronal cells and parenchymal cells. Serum-free alternatives (sericin and maltose) could increase safety during cell transplantation and regenerative medicine. Considering these, we propose an effective freezing solution for the cryopreservation of neuronal cells. The timing of freezing during cell differentiation. More effective serum-free freezing solution for differentiated neuronal cells. Improving the quality of damage-sensitive cells, such as differentiated neuronal cells.
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15
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Sato B, Kanai S, Sakaguchi D, Yajima K, Matsumoto Y, Morohoshi K, Kagaya S, Izumo N, Ichinose M, Kang W, Miyado M, Miyado K, Kawano N. Suppressive Role of Lactoferrin in Overweight-Related Female Fertility Problems. Nutrients 2022; 14:nu14050938. [PMID: 35267914 PMCID: PMC8912823 DOI: 10.3390/nu14050938] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 01/24/2022] [Revised: 02/17/2022] [Accepted: 02/19/2022] [Indexed: 11/16/2022] Open
Abstract
The secretory glycoprotein lactoferrin (LF) is suggested to ameliorate overweight regardless of non-genetic or genetic mechanisms. Although maternal overweight represents a key predictor of offspring growth, the efficacy of LF on fertility problems in overweight and obese mothers remains unknown. To address this issue, we examined the effect of LF ingestion by analyzing overweight mice (Institute of Cancer Research (ICR) mice with high-fat diets; HF mice) and obese mice (leptin-deficient mice with type II diabetes; ob/ob mice). Plasma insulin, leptin, glucose, and cholesterol levels were measured, and thermal imaging and histological analysis were employed. The litter size of HF females was reduced due to miscarriage, which was reversed by LF ingestion. In addition, LF ingestion suppressed overweight prevalence in their offspring. The component analysis of the maternal blood demonstrated that glucose concentration in both HF females and their offspring was normalized by LF ingestion, which further standardized the concentration of insulin, but not leptin. LF ingestion was unable to reverse female infertility in ob/ob mice, although their obesity and uterine function were partially improved. Our results indicate that LF upregulates female fertility by reinforcing ovarian and uterine functions in females that are overweight due to caloric surplus.
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Affiliation(s)
- Ban Sato
- Laboratory of Regulatory Biology, Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashimita, Tama, Kawasaki 214-8571, Japan; (B.S.); (S.K.); (D.S.); (K.Y.); (Y.M.); (K.M.)
| | - Seiya Kanai
- Laboratory of Regulatory Biology, Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashimita, Tama, Kawasaki 214-8571, Japan; (B.S.); (S.K.); (D.S.); (K.Y.); (Y.M.); (K.M.)
| | - Daiki Sakaguchi
- Laboratory of Regulatory Biology, Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashimita, Tama, Kawasaki 214-8571, Japan; (B.S.); (S.K.); (D.S.); (K.Y.); (Y.M.); (K.M.)
| | - Kodai Yajima
- Laboratory of Regulatory Biology, Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashimita, Tama, Kawasaki 214-8571, Japan; (B.S.); (S.K.); (D.S.); (K.Y.); (Y.M.); (K.M.)
| | - Yu Matsumoto
- Laboratory of Regulatory Biology, Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashimita, Tama, Kawasaki 214-8571, Japan; (B.S.); (S.K.); (D.S.); (K.Y.); (Y.M.); (K.M.)
| | - Kazunori Morohoshi
- Laboratory of Regulatory Biology, Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashimita, Tama, Kawasaki 214-8571, Japan; (B.S.); (S.K.); (D.S.); (K.Y.); (Y.M.); (K.M.)
| | - Shinji Kagaya
- NRL Pharma, Inc., East Block 203, Kanagawa Science Park, 3-2-1 Sakado, Takatsu-Ku, Kawasaki 213-0012, Japan;
| | - Nobuo Izumo
- Laboratory of Pharmacotherapy, Yokohama University of Pharmacy, 601 Matano, Totsuka, Yokohama 245-0066, Japan;
| | - Minoru Ichinose
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan; (M.I.); (W.K.)
| | - Woojin Kang
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan; (M.I.); (W.K.)
| | - Mami Miyado
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan;
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan; (M.I.); (W.K.)
- Correspondence: (K.M.); (N.K.); Tel.: +81-3-5494-7047 (K.M.); +81-44-934-7038 (N.K.)
| | - Natsuko Kawano
- Laboratory of Regulatory Biology, Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashimita, Tama, Kawasaki 214-8571, Japan; (B.S.); (S.K.); (D.S.); (K.Y.); (Y.M.); (K.M.)
- Correspondence: (K.M.); (N.K.); Tel.: +81-3-5494-7047 (K.M.); +81-44-934-7038 (N.K.)
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16
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Kobayashi S, Kawano N, Miyado K, Ohta R, Akimoto T, Hatakeyama T, Kawaguchi M. Effects of tris(1,3-dichloro-2-propyl) phosphate on epididymal sperm parameters in adult male rats. J Vet Med Sci 2021; 84:153-156. [PMID: 34897185 PMCID: PMC8810334 DOI: 10.1292/jvms.21-0046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Tris(1,3-dichloro-2-propyl) phosphate (TDCIPP) is widely used as a flame retardant and is known to exhibit anti-androgenic effects in vitro and in vivo. To assess the reproductive toxicity potency of TDCIPP, we investigated the effects of 7 days of TDCIPP oral administration on epididymal sperm motion and concentration in adult male Wistar-Imamichi rats. Thirty-five days after the final administration, sperm parameters were evaluated by computer-assisted sperm analysis. Results showed that sperm swimming progression and vigor and sperm concentration in TDCIPP-treated rats were unexpectedly higher than those in control rats. TDCIPP did not significantly affect the percentage of motile sperms or sperm swimming pattern. These results contribute to the understanding of the biological effects of TDCIPP.
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Affiliation(s)
- Shohei Kobayashi
- Organization for the Strategic Coordination of Research and Intellectual Property, Meiji University.,Lab of Animal Behavior and Environmental Science, School of Agriculture, Meiji University
| | - Natsuko Kawano
- Lab of Regulatory Biology, School of Agriculture, Meiji University
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development
| | - Ryo Ohta
- Hatano Research Institute, Food and Drug Safety Center
| | - Takahiro Akimoto
- Lab of Animal Behavior and Environmental Science, School of Agriculture, Meiji University
| | - Taichi Hatakeyama
- Organization for the Strategic Coordination of Research and Intellectual Property, Meiji University.,Lab of Animal Behavior and Environmental Science, School of Agriculture, Meiji University
| | - Maiko Kawaguchi
- Lab of Animal Behavior and Environmental Science, School of Agriculture, Meiji University
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17
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Kang W, Suzuki M, Saito T, Miyado K. Emerging Role of TCA Cycle-Related Enzymes in Human Diseases. Int J Mol Sci 2021; 22:13057. [PMID: 34884868 PMCID: PMC8657694 DOI: 10.3390/ijms222313057] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 11/27/2021] [Accepted: 11/30/2021] [Indexed: 02/03/2023] Open
Abstract
The tricarboxylic acid (TCA) cycle is the main source of cellular energy and participates in many metabolic pathways in cells. Recent reports indicate that dysfunction of TCA cycle-related enzymes causes human diseases, such as neurometabolic disorders and tumors, have attracted increasing interest in their unexplained roles. The diseases which develop as a consequence of loss or dysfunction of TCA cycle-related enzymes are distinct, suggesting that each enzyme has a unique function. This review aims to provide a comprehensive overview of the relationship between each TCA cycle-related enzyme and human diseases. We also discuss their functions in the context of both mitochondrial and extra-mitochondrial (or cytoplasmic) enzymes.
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Affiliation(s)
- Woojin Kang
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan; (M.S.); (K.M.)
| | - Miki Suzuki
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan; (M.S.); (K.M.)
| | - Takako Saito
- Department of Applied Life Sciences, Faculty of Agriculture, Shizuoka University, Shizuoka 422-8529, Japan;
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan; (M.S.); (K.M.)
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18
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Morohoshi K, Yamazaki T, Kito K, Sato B, Kang W, Hibino T, Yoshida M, Yoshida K, Iwamoto T, Yamada M, Miyado K, Kawano N. Identification of an antibacterial polypeptide in mouse seminal vesicle secretions. J Reprod Immunol 2021; 148:103436. [PMID: 34700103 DOI: 10.1016/j.jri.2021.103436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 10/05/2021] [Accepted: 10/13/2021] [Indexed: 11/16/2022]
Abstract
In both men and women, pathogenic bacteria enter the reproductive tract and cause harmful symptoms. Intrauterine and oviductal inflammation after copulation may have severe effects, such as infertility, implantation failure, oviduct obstruction, and robust life-threatening bacterial infection. Human seminal plasma is considered to be protective against bacterial infection. Among its components, Semenogelin-I/-II proteins are digested to function as bactericidal factors; however, their sequences are not conserved in mammals. Therefore, alternative antibacterial (bactericidal and/or bacteriostatic) systems may exist across mammals. In this study, we examined the antibacterial activity in the seminal plasma of mice lacking a gene cluster encoding Semenogelin-I/-II counterparts. Even in the absence of the majority of seminal proteins, antibacterial activity remained in the seminal plasma. Moreover, a combination of gel chromatography and liquid chromatography coupled with tandem mass spectrometry revealed that the prostate and testis expressed 4 protein as a novel antibacterial (specifically, bacteriostatic) protein, the sequence of which is broadly conserved across mammals. Our results provide the first evidence of a bacteriostatic protein that is widely present in the mammalian seminal plasma.
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Affiliation(s)
- Kazunori Morohoshi
- Laboratory of Regulatory Biology, Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashimita, Tama, Kawasaki, Kanagawa, 214-8571, Japan
| | - Takeo Yamazaki
- Laboratory of Regulatory Biology, Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashimita, Tama, Kawasaki, Kanagawa, 214-8571, Japan
| | - Keiji Kito
- Laboratory of Proteomics, Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashimita, Tama, Kawasaki, Kanagawa, 214-8571, Japan
| | - Ban Sato
- Laboratory of Regulatory Biology, Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashimita, Tama, Kawasaki, Kanagawa, 214-8571, Japan
| | - Woojin Kang
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Taku Hibino
- Faculty of Education, Saitama University, 255 Shimo-Okubo, Sakura, Saitama City, Saitama, 338-8570, Japan
| | - Manabu Yoshida
- Misaki Marine Biological Station, School of Science, the University of Tokyo, 1024 Koajiro, Misaki, Miura, Kanagawa, 238-0225, Japan
| | - Kaoru Yoshida
- Faculty of Biomedical Engineering, Toin University of Yokohama, 1614 Kurogane, Aoba, Yokohama, Kanagawa, 225-8503, Japan
| | - Teruaki Iwamoto
- Division of Male Infertility, Center for Human Reproduction, Sanno Hospital, International University of Health and Welfare, 8-10-21 Akasaka, Minato, Tokyo, 107-0052, Japan
| | - Mitsutoshi Yamada
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, 160-8582, Japan
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Natsuko Kawano
- Laboratory of Regulatory Biology, Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashimita, Tama, Kawasaki, Kanagawa, 214-8571, Japan.
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Suwatthanarak T, Tanaka M, Miyamoto Y, Miyado K, Okochi M. Inhibition of cancer-cell migration by tetraspanin CD9-binding peptide. Chem Commun (Camb) 2021; 57:4906-4909. [PMID: 33870995 DOI: 10.1039/d1cc01295a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A CD9-binding peptide (RSHRLRLH), screened from EWI-2, was characterized, and its effect on cellular migration and invasion was evaluated. As CD9 protein is overexpressed in cancer cells and plays an important role in cellular migration, the CD9-binding peptide preferentially inhibited the migration of cancer cells. Unlike conventional antiproliferative drugs, this CD9-binding peptide is promising as a novel precision antimigratory agent for cancer therapeutics.
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Affiliation(s)
- Thanawat Suwatthanarak
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1, O-okayama, Meguro-ku, Tokyo 152-8552, Japan.
| | - Masayoshi Tanaka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1, O-okayama, Meguro-ku, Tokyo 152-8552, Japan.
| | - Yoshitaka Miyamoto
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan
| | - Mina Okochi
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1, O-okayama, Meguro-ku, Tokyo 152-8552, Japan.
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20
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Tsumura H, Shindo M, Ito M, Igarashi A, Takeda K, Matsumoto K, Ohkura T, Miyado K, Sugiyama F, Umezawa A, Ito Y. Relationships between Slc1a5 and Osteoclastogenesis. Comp Med 2021; 71:285-294. [PMID: 34301346 DOI: 10.30802/aalas-cm-21-000012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Slc1a5 (ASCT2) encodes a small neutral amino-acid exchanger and is the most well-studied glutamine transporter in cancer cells. To investigate the role of Slc1a5 in osteoclastogenesis, we developed Slc1a5-deficient mice by using a conventional gene-targeting approach. The Slc1a5-/- mice showed no obvious abnormalities in growth. Glutamine uptake was assessed in Slc1a5+/+ and Slc1a5-/- bone marrow cells stimulated with RANKL. The rate of glutamine uptake in Slc1a5-/- bone marrow cells was reduced to 70% of that of cells from Slc1a5+/+ bone marrow. To confirm the involvement of Slc1a5 in osteoclast formation, bone marrow cells derived from Slc1a5+/+ or Slc1a5-/- mice were stimulated with RANKL and macrophage colony-stimulating factor and stained with tartrate-resistant acid phosphatase. The bone resorption activity and actin ring formation of stimulated cells were measured. The formation of multinucleated osteoclasts in bone marrow cells isolated from Slc1a5-/- mice was severely impaired compared with those from Slc1a5+/+ mice. RANKL-induced expression of ERK, NFκB, p70S6K, and NFATc1 was suppressed in Slc1a5-/- osteoclasts. These results show that Slc1a5 plays an important role in osteoclast formation.
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Affiliation(s)
- Hideki Tsumura
- Division of Laboratory Animal Resources, National Research Institute for Child Health and Development, Tokyo, Japan;,
| | - Miyuki Shindo
- Division of Laboratory Animal Resources, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Morihiro Ito
- Department of Microbiology, College of life and Health Science, Chubu University, Aichi, Japan
| | - Arisa Igarashi
- Departments of Genome Medicine, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Kazue Takeda
- Allergy and Clinical Immunology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Kenji Matsumoto
- Allergy and Clinical Immunology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Takashi Ohkura
- Reproductive Biology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Kenji Miyado
- Reproductive Biology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Fumihiro Sugiyama
- Laboratory Animal Resource Center, Transborder Medical Research Center, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Akihiro Umezawa
- Reproductive Biology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Yasuhiko Ito
- Department of Microbiology, College of life and Health Science, Chubu University, Aichi, Japan
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21
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Shindo M, Tsumura H, Miyado K, Kang W, Kawano N, Yoshida T, Fukami M, Miyado M. Similar responsiveness between C57BL/6N and C57BL/6J mouse substrains to superovulation. MicroPubl Biol 2021; 2021. [PMID: 33655202 PMCID: PMC7907840 DOI: 10.17912/micropub.biology.000375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Superovulation is a method for the drug-induced release of multiple eggs and useful for in vitro fertilization. Thus, its high efficiency largely reduces the number of mice used per experiment. We compared the responsivity to superovulation between C57BL/6N (B6N) and C57BL/6J (B6J) substrains. The average number of ovulated eggs was strikingly higher in both substrains treated with anti-inhibin serum (AIS) plus equine chorionic gonadotropin (eCG) than those treated with eCG alone. Our data indicate that hypothalamus-pituitary-ovarian axis similarly responds to eCG treatment in B6N and B6J mice, and that this responsiveness is enhanced by the presence of AIS.
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Affiliation(s)
- Miyuki Shindo
- Division of Laboratory Animal Resources, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
| | - Hideki Tsumura
- Division of Laboratory Animal Resources, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
| | - Woojin Kang
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
| | - Natsuko Kawano
- Laboratory of Regulatory Biology, Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashimita, Kawasaki, Kanagawa 214-8571, Japan
| | - Tomoko Yoshida
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
| | - Maki Fukami
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
| | - Mami Miyado
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
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22
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Yamada M, Sato S, Ooka R, Akashi K, Nakamura A, Miyado K, Akutsu H, Tanaka M. Mitochondrial replacement by genome transfer in human oocytes: Efficacy, concerns, and legality. Reprod Med Biol 2021; 20:53-61. [PMID: 33488283 PMCID: PMC7812462 DOI: 10.1002/rmb2.12356] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 10/13/2020] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Pathogenic mitochondrial (mt)DNA mutations, which often cause life-threatening disorders, are maternally inherited via the cytoplasm of oocytes. Mitochondrial replacement therapy (MRT) is expected to prevent second-generation transmission of mtDNA mutations. However, MRT may affect the function of respiratory chain complexes comprised of both nuclear and mitochondrial proteins. METHODS Based on the literature and current regulatory guidelines (especially in Japan), we analyzed and reviewed the recent developments in human models of MRT. MAIN FINDINGS MRT does not compromise pre-implantation development or stem cell isolation. Mitochondrial function in stem cells after MRT is also normal. Although mtDNA carryover is usually less than 0.5%, even low levels of heteroplasmy can affect the stability of the mtDNA genotype, and directional or stochastic mtDNA drift occurs in a subset of stem cell lines (mtDNA genetic drift). MRT could prevent serious genetic disorders from being passed on to the offspring. However, it should be noted that this technique currently poses significant risks for use in embryos designed for implantation. CONCLUSION The maternal genome is fundamentally compatible with different mitochondrial genotypes, and vertical inheritance is not required for normal mitochondrial function. Unresolved questions regarding mtDNA genetic drift can be addressed by basic research using MRT.
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Affiliation(s)
- Mitsutoshi Yamada
- Department of Obstetrics and GynecologyKeio University School of MedicineTokyoJapan
| | - Suguru Sato
- Department of Obstetrics and GynecologyKeio University School of MedicineTokyoJapan
| | - Reina Ooka
- Department of Obstetrics and GynecologyKeio University School of MedicineTokyoJapan
| | - Kazuhiro Akashi
- Department of Obstetrics and GynecologyKeio University School of MedicineTokyoJapan
| | - Akihiro Nakamura
- Department of Obstetrics and GynecologyKeio University School of MedicineTokyoJapan
- Department of Reproductive BiologyNational Research Institute for Child Health and DevelopmentTokyoJapan
| | - Kenji Miyado
- Department of Reproductive BiologyNational Research Institute for Child Health and DevelopmentTokyoJapan
| | - Hidenori Akutsu
- Department of Reproductive BiologyNational Research Institute for Child Health and DevelopmentTokyoJapan
| | - Mamoru Tanaka
- Department of Obstetrics and GynecologyKeio University School of MedicineTokyoJapan
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23
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Kang W, Yamatoya K, Miyado K, Miyado M, Miyamoto Y. Neuronal expression of Ca 2+ oscillation initiator is linked to rapid neonatal growth in mice. MicroPubl Biol 2020; 2020. [PMID: 33274323 PMCID: PMC7704253 DOI: 10.17912/micropub.biology.000325] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Woojin Kang
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Setagaya, Tokyo 157-8535, Japan
| | - Kenji Yamatoya
- Institute for Environmental and Gender-Specific Medicine, Juntendo University Graduate School of Medicine, Urayasu, Chiba 279-0021, Japan
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Setagaya, Tokyo 157-8535, Japan
| | - Mami Miyado
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Setagaya, Tokyo 157-8535, Japan
| | - Yoshitaka Miyamoto
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Setagaya, Tokyo 157-8535, Japan
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24
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Saito K, Kuwahara A, Ishikawa T, Morisaki N, Miyado M, Miyado K, Fukami M, Miyasaka N, Ishihara O, Irahara M, Saito H. Endometrial preparation methods for frozen-thawed embryo transfer are associated with altered risks of hypertensive disorders of pregnancy, placenta accreta, and gestational diabetes mellitus. Hum Reprod 2020; 34:1567-1575. [PMID: 31299081 DOI: 10.1093/humrep/dez079] [Citation(s) in RCA: 127] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Revised: 04/24/2019] [Indexed: 12/18/2022] Open
Abstract
STUDY QUESTION What were the risks with regard to the pregnancy outcomes of patients who conceived by frozen-thawed embryo transfer (FET) during a hormone replacement cycle (HRC-FET)? SUMMARY ANSWER The patients who conceived by HRC-FET had increased risks of hypertensive disorders of pregnancy (HDP) and placenta accreta and a reduced risk of gestational diabetes mellitus (GDM) in comparison to those who conceived by FET during a natural ovulatory cycle (NC-FET). WHAT IS KNOWN ALREADY Previous studies have shown that pregnancy and live-birth rates after HRC-FET and NC-FET are comparable. Little has been clarified regarding the association between endometrium preparation and other pregnancy outcomes. STUDY DESIGN, SIZE, DURATION A retrospective cohort study of patients who conceived after HRC-FET and those who conceived after NC-FET was performed based on the Japanese assisted reproductive technology registry in 2014. PARTICIPANTS/MATERIALS, SETTING, METHODS The pregnancy outcomes were compared between NC-FET (n = 29 760) and HRC-FET (n = 75 474) cycles. Multiple logistic regression analyses were performed to investigate the potential confounding factors. MAIN RESULTS AND THE ROLE OF CHANCE The pregnancy rate (32.1% vs 36.1%) and the live birth rate among pregnancies (67.1% vs 71.9%) in HRC-FET cycles were significantly lower than those in NC-FET cycles. A multiple logistic regression analysis showed that pregnancies after HRC-FET had increased odds of HDPs [adjusted odds ratio, 1.43; 95% confidence interval (CI), 1.14-1.80] and placenta accreta (adjusted odds ratio, 6.91; 95% CI, 2.87-16.66) and decreased odds for GDM (adjusted odds ratio, 0.52; 95% CI, 0.40-0.68) in comparison to pregnancies after NC-FET. LIMITATIONS, REASONS FOR CAUTION Our study was retrospective in nature, and some cases were excluded due to missing data. The implication of bias and residual confounding factors such as body mass index, alcohol consumption, and smoking habits should be considered in other observational studies. WIDER IMPLICATIONS OF THE FINDINGS Pregnancies following HRC-FET are associated with higher risks of HDPs and placenta accreta and a lower risk of GDM. The association between the endometrium preparation method and obstetrical complication merits further attention. STUDY FUNDING/COMPETING INTEREST(S) No funding was obtained for this work. The authors declare no conflicts of interest in association with the present study. TRIAL REGISTRATION NUMBER Not applicable.
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Affiliation(s)
- Kazuki Saito
- Department of Perinatal Medicine and Maternal Care, National Center for Child Health and Development, Tokyo 157-8535, Japan.,Department of Comprehensive Reproductive Medicine, Graduate School, Tokyo Medical and Dental University, Tokyo 113-8510, Japan.,Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan
| | - Akira Kuwahara
- Department of Obstetrics and Gynecology, The University of Tokushima Graduate School, Institute of Health Biosciences, Tokushima 770-8503, Japan
| | - Tomonori Ishikawa
- Department of Comprehensive Reproductive Medicine, Graduate School, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
| | - Naho Morisaki
- Department of Social Medicine, National Center for Child Health and Development, Tokyo 157-8535, Japan
| | - Mami Miyado
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan
| | - Maki Fukami
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan
| | - Naoyuki Miyasaka
- Department of Comprehensive Reproductive Medicine, Graduate School, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
| | - Osamu Ishihara
- Department of Obstetrics and Gynecology, Saitama Medical University, Saitama 350-0495, Japan
| | - Minoru Irahara
- Department of Obstetrics and Gynecology, The University of Tokushima Graduate School, Institute of Health Biosciences, Tokushima 770-8503, Japan
| | - Hidekazu Saito
- Department of Perinatal Medicine and Maternal Care, National Center for Child Health and Development, Tokyo 157-8535, Japan
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25
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Yamada M, Akashi K, Ooka R, Miyado K, Akutsu H. Mitochondrial Genetic Drift after Nuclear Transfer in Oocytes. Int J Mol Sci 2020; 21:E5880. [PMID: 32824295 PMCID: PMC7461576 DOI: 10.3390/ijms21165880] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 06/30/2020] [Revised: 08/01/2020] [Accepted: 08/06/2020] [Indexed: 11/19/2022] Open
Abstract
Mitochondria are energy-producing intracellular organelles containing their own genetic material in the form of mitochondrial DNA (mtDNA), which codes for proteins and RNAs essential for mitochondrial function. Some mtDNA mutations can cause mitochondria-related diseases. Mitochondrial diseases are a heterogeneous group of inherited disorders with no cure, in which mutated mtDNA is passed from mothers to offspring via maternal egg cytoplasm. Mitochondrial replacement (MR) is a genome transfer technology in which mtDNA carrying disease-related mutations is replaced by presumably disease-free mtDNA. This therapy aims at preventing the transmission of known disease-causing mitochondria to the next generation. Here, a proof of concept for the specific removal or editing of mtDNA disease-related mutations by genome editing is introduced. Although the amount of mtDNA carryover introduced into human oocytes during nuclear transfer is low, the safety of mtDNA heteroplasmy remains a concern. This is particularly true regarding donor-recipient mtDNA mismatch (mtDNA-mtDNA), mtDNA-nuclear DNA (nDNA) mismatch caused by mixing recipient nDNA with donor mtDNA, and mtDNA replicative segregation. These conditions can lead to mtDNA genetic drift and reversion to the original genotype. In this review, we address the current state of knowledge regarding nuclear transplantation for preventing the inheritance of mitochondrial diseases.
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Affiliation(s)
- Mitsutoshi Yamada
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo 160-8582, Japan; (K.A.); (R.O.)
| | - Kazuhiro Akashi
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo 160-8582, Japan; (K.A.); (R.O.)
| | - Reina Ooka
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo 160-8582, Japan; (K.A.); (R.O.)
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura Setagaya-ku, Tokyo 157-8535, Japan; (K.M.); (H.A.)
| | - Hidenori Akutsu
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura Setagaya-ku, Tokyo 157-8535, Japan; (K.M.); (H.A.)
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26
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Iwagawa T, Aihara Y, Umutoni D, Baba Y, Murakami A, Miyado K, Watanabe S. Cd9 Protects Photoreceptors from Injury and Potentiates Edn2 Expression. Invest Ophthalmol Vis Sci 2020; 61:7. [PMID: 32150249 PMCID: PMC7401443 DOI: 10.1167/iovs.61.3.7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 02/06/2023] Open
Abstract
Purpose Cd9 is a tetraspanin membrane protein that plays various roles in tissue development and disease pathogenesis, especially in cancer, but the expression patterns and function of Cd9 in retinal development and disease are not well understood. We asked its roles during retinal photoreceptor degeneration by using CD9-knockout mice. Methods Cd9 knockout mice and rd1 mice were used to examine roles of Cd9 for progression of photoreceptor degeneration. Reverse transcription-polymerase chain reaction and immunohistochemistry were mainly used as analytical methods. Results Cd9 transcripts were only weakly expressed in retina at embryonic day 14, but its expression level subsequently increased and peaked at around postnatal day 12. In 6-week-old female mice derived retina, mRNA expression decreased slightly but was maintained at a significant level. Published RNA-sequencing data and immunohistochemistry indicated that Cd9 was expressed abundantly in Müller glia and weakly in other retinal neurons. Notably, when photoreceptors were damaged, Cd9 expression was increased in rod photoreceptors and decreased in Müller glia. Cd9 knockout mice retinas developed normally; however, once the retina suffered damage, degeneration of photoreceptors was more severe in Cd9 knockout retinas than control retinas. Induction of Edn2, which is known to protect against photoreceptor damage, was severely hampered. In addition, induction of Socs3, which is downstream of gp130 (Il6st), was weaker in Cd9 knockout retinas. Conclusions Taken together, these findings indicate that, although Cd9 was dispensable for normal gross morphological development, it protected rod photoreceptors and enhanced Edn2 expression, possibly through modulation of gp130 signaling.
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Sakaguchi D, Miyado K, Iwamoto T, Okada H, Yoshida K, Kang W, Suzuki M, Yoshida M, Kawano N. Human Semenogelin 1 Promotes Sperm Survival in the Mouse Female Reproductive Tract. Int J Mol Sci 2020; 21:ijms21113961. [PMID: 32486486 PMCID: PMC7312897 DOI: 10.3390/ijms21113961] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 05/22/2020] [Revised: 05/29/2020] [Accepted: 05/29/2020] [Indexed: 01/13/2023] Open
Abstract
Semenogelin 1 (SEMG1), a main component of human seminal plasma, is a multi-functional protein involved in the regulation of sperm motility and fertility. SEMG1 is orthologous to mouse seminal vesicle secretion 2 (SVS2), required for sperm survival in the female reproductive tract after copulation; however, its in vivo function remains unclear. In this study, we addressed this issue by examining the effect of recombinant SEMG1 on intrauterine mouse sperm survival. SEMG1 caused a dose-dependent decrease in mouse sperm motility, similar to its effect on human sperm, but SVS2 had no effect on mouse sperm motility. Mouse epididymal sperm in the presence of 100 µM SEMG1, a concentration that does not affect mouse sperm motility, were injected into the mouse uterus (intrauterine insemination, IUI). IUI combined with SEMG1 significantly increased the survival rate of intrauterine mouse sperm. The effect of SEMG1 on intrauterine sperm survival was comparable with that of SVS2. For clinical applications, three potentially sperm-protecting polypeptides that are easy to handle were designed from SEMG1, but their individual use was unable to mimic the ability of SEMG1. Our results indicate that SEMG1 has potential clinical applications for effective IUI and thereby for safe, simple, and effective internal fertilization.
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Affiliation(s)
- Daiki Sakaguchi
- Laboratory of Regulatory Biology, Department of Life Sciences, School of Agriculture, Meiji University, Kanagawa 214-8571, Japan;
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan; (K.M.); (W.K.); (M.S.)
| | - Teruaki Iwamoto
- Division of Male Infertility, Center for Human Reproduction, Sanno Hospital, International University of Health and Welfare, Tokyo 107-0052, Japan;
| | - Hiroshi Okada
- Department of Urology, Dokkyo Medical University Saitama Medical Center, Saitama 343-8555, Japan;
| | - Kaoru Yoshida
- Faculty of Biomedical Engineering, Toin University of Yokohama, Kanagawa 225-8503, Japan;
| | - Woojin Kang
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan; (K.M.); (W.K.); (M.S.)
| | - Miki Suzuki
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan; (K.M.); (W.K.); (M.S.)
| | - Manabu Yoshida
- Misaki Marine Biological Station, School of Science, the University of Tokyo, Kanagawa 238-0225, Japan
- Correspondence: (M.Y.); (N.K.)
| | - Natsuko Kawano
- Laboratory of Regulatory Biology, Department of Life Sciences, School of Agriculture, Meiji University, Kanagawa 214-8571, Japan;
- Correspondence: (M.Y.); (N.K.)
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28
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Kang W, Harada Y, Yamatoya K, Kawano N, Kanai S, Miyamoto Y, Nakamura A, Miyado M, Hayashi Y, Kuroki Y, Saito H, Iwao Y, Umezawa A, Miyado K. Correction: Extra-mitochondrial citrate synthase initiates calcium oscillation and suppresses age-dependent sperm dysfunction. J Transl Med 2020; 100:665. [PMID: 31907369 PMCID: PMC7609271 DOI: 10.1038/s41374-019-0369-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
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Affiliation(s)
- Woojin Kang
- 0000 0004 0377 2305grid.63906.3aDepartment of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535 Japan ,0000 0004 0377 2305grid.63906.3aDepartment of Perinatal Medicine and Maternal Care, National Center for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535 Japan
| | - Yuichirou Harada
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan. .,Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku, Tokyo, 160-8402, Japan.
| | - Kenji Yamatoya
- 0000 0004 1762 2738grid.258269.2Institute for Environmental and Gender-Specific Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Tomioka, Urayasu-City, Chiba 279-0021 Japan
| | - Natsuko Kawano
- 0000 0004 0377 2305grid.63906.3aDepartment of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535 Japan ,0000 0001 2106 7990grid.411764.1Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashi-Mita, Tama-ku, Kawasakishi, Kanagawa 214-8571 Japan
| | - Seiya Kanai
- 0000 0001 2106 7990grid.411764.1Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashi-Mita, Tama-ku, Kawasakishi, Kanagawa 214-8571 Japan
| | - Yoshitaka Miyamoto
- 0000 0004 0377 2305grid.63906.3aDepartment of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535 Japan
| | - Akihiro Nakamura
- 0000 0004 0377 2305grid.63906.3aDepartment of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535 Japan
| | - Mami Miyado
- 0000 0004 0377 2305grid.63906.3aDepartment of Molecular Endocrinology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535 Japan
| | - Yoshiki Hayashi
- 0000 0001 2369 4728grid.20515.33Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572 Japan
| | - Yoko Kuroki
- 0000 0004 0377 2305grid.63906.3aDepartment of Genome Medicine, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535 Japan
| | - Hidekazu Saito
- 0000 0004 0377 2305grid.63906.3aDepartment of Perinatal Medicine and Maternal Care, National Center for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535 Japan
| | - Yasuhiro Iwao
- 0000 0001 0660 7960grid.268397.1Division of Earth Science, Biology, and Chemistry, Graduate School of Sciences and Technology for Innovation, Yamaguchi University, 1677-1 Yoshida, Yamaguchi City, Yamaguchi 753-8511 Japan
| | - Akihiro Umezawa
- 0000 0004 0377 2305grid.63906.3aDepartment of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535 Japan
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan.
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29
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Saito K, Kuwahara A, Ishikawa T, Morisaki N, Miyado M, Miyado K, Fukami M, Miyasaka N, Ishihara O, Irahara M, Saito H. Reply: Artificial cycle 'per se' or the specific protocol of endometrial preparation as responsible for obstetric complications of frozen cycle? Hum Reprod 2019; 34:2554-2555. [PMID: 31822902 DOI: 10.1093/humrep/dez221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 09/16/2019] [Accepted: 09/16/2019] [Indexed: 12/17/2022] Open
Affiliation(s)
- Kazuki Saito
- Department of Pediatrics, Perinatal and Maternal Medicine (Ibaraki), Graduate School, Tokyo Medical and Dental University, Tokyo 113-8519, Japan.,Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan
| | - Akira Kuwahara
- Department of Obstetrics and Gynecology, The University of Tokushima Graduate School, Institute of Health Biosciences, Tokushima 770-8503, Japan
| | - Tomonori Ishikawa
- Department of Pediatrics, Perinatal and Maternal Medicine (Ibaraki), Graduate School, Tokyo Medical and Dental University, Tokyo 113-8519, Japan
| | - Naho Morisaki
- Department of Social Medicine, National Center for Child Health and Development, Tokyo 157-8535, Japan
| | - Mami Miyado
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan
| | - Maki Fukami
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan
| | - Naoyuki Miyasaka
- Department of Comprehensive Reproductive Medicine, Graduate School, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
| | - Osamu Ishihara
- Department of Obstetrics and Gynecology, Saitama Medical University, Saitama 350-0495, Japan
| | - Minoru Irahara
- Department of Obstetrics and Gynecology, The University of Tokushima Graduate School, Institute of Health Biosciences, Tokushima 770-8503, Japan
| | - Hidekazu Saito
- Department of Perinatal Medicine and Maternal Care, National Center for Child Health and Development.,Umegaoka Women's Clinic, Tokyo 154-0022, Japan
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30
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Sasaki K, Shiba K, Nakamura A, Kawano N, Satouh Y, Yamaguchi H, Morikawa M, Shibata D, Yanase R, Jokura K, Nomura M, Miyado M, Takada S, Ueno H, Nonaka S, Baba T, Ikawa M, Kikkawa M, Miyado K, Inaba K. Erratum: Publisher Correction: Calaxin is required for cilia-driven determination of vertebrate laterality. Commun Biol 2019; 2:254. [PMID: 31286071 PMCID: PMC6609717 DOI: 10.1038/s42003-019-0512-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Affiliation(s)
- Keita Sasaki
- 1Shimoda Marine Research Center, University of Tsukuba, Shimoda, 415-0025 Japan
| | - Kogiku Shiba
- 1Shimoda Marine Research Center, University of Tsukuba, Shimoda, 415-0025 Japan
| | - Akihiro Nakamura
- 1Shimoda Marine Research Center, University of Tsukuba, Shimoda, 415-0025 Japan.,2Department of Reproductive Biology, National Center for Child Health and Development, Tokyo, 157-8535 Japan
| | - Natsuko Kawano
- 3Department of Life Science, School of Agriculture, Meiji University, Kanagawa, 214-8574 Japan
| | - Yuhkoh Satouh
- 4Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871 Japan
| | - Hiroshi Yamaguchi
- 5Department of Cell Biology and Anatomy, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-0033 Japan
| | - Motohiro Morikawa
- 5Department of Cell Biology and Anatomy, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-0033 Japan
| | - Daisuke Shibata
- 1Shimoda Marine Research Center, University of Tsukuba, Shimoda, 415-0025 Japan
| | - Ryuji Yanase
- 1Shimoda Marine Research Center, University of Tsukuba, Shimoda, 415-0025 Japan
| | - Kei Jokura
- 1Shimoda Marine Research Center, University of Tsukuba, Shimoda, 415-0025 Japan
| | - Mami Nomura
- 1Shimoda Marine Research Center, University of Tsukuba, Shimoda, 415-0025 Japan
| | - Mami Miyado
- 6Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, 157-8535 Japan
| | - Shuji Takada
- 7Department of Systems BioMedicine, National Research Institute for Child Health and Development, Tokyo, 157-8535 Japan
| | - Hironori Ueno
- 8Molecular Function & Life Sciences, Aichi University of Education, Aichi, 448-8542 Japan
| | - Shigenori Nonaka
- Spatiotemporal Regulations Group, Exploratory Research Center on Life and Living Systems (ExCELLS), Okazaki, 444-8585 Japan.,10Laboratory for Spatiotemporal Regulations, National Institute for Basic Biology, Okazaki, 444-8585 Japan
| | - Tadashi Baba
- 11Faculty of Life and Environmental Sciences, and Life Science Center for Survival Dynamics Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, Tsukuba, 305-8577 Japan
| | - Masahito Ikawa
- 4Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871 Japan
| | - Masahide Kikkawa
- 5Department of Cell Biology and Anatomy, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-0033 Japan
| | - Kenji Miyado
- 2Department of Reproductive Biology, National Center for Child Health and Development, Tokyo, 157-8535 Japan
| | - Kazuo Inaba
- 1Shimoda Marine Research Center, University of Tsukuba, Shimoda, 415-0025 Japan
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31
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Sasaki K, Shiba K, Nakamura A, Kawano N, Satouh Y, Yamaguchi H, Morikawa M, Shibata D, Yanase R, Jokura K, Nomura M, Miyado M, Takada S, Ueno H, Nonaka S, Baba T, Ikawa M, Kikkawa M, Miyado K, Inaba K. Calaxin is required for cilia-driven determination of vertebrate laterality. Commun Biol 2019; 2:226. [PMID: 31240264 PMCID: PMC6586612 DOI: 10.1038/s42003-019-0462-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 05/14/2019] [Indexed: 12/24/2022] Open
Abstract
Calaxin is a Ca2+-binding dynein-associated protein that regulates flagellar and ciliary movement. In ascidians, calaxin plays essential roles in chemotaxis of sperm. However, nothing has been known for the function of calaxin in vertebrates. Here we show that the mice with a null mutation in Efcab1, which encodes calaxin, display typical phenotypes of primary ciliary dyskinesia, including hydrocephalus, situs inversus, and abnormal motility of trachea cilia and sperm flagella. Strikingly, both males and females are viable and fertile, indicating that calaxin is not essential for fertilization in mice. The 9 + 2 axonemal structures of epithelial multicilia and sperm flagella are normal, but the formation of 9 + 0 nodal cilia is significantly disrupted. Knockout of calaxin in zebrafish also causes situs inversus due to the irregular ciliary beating of Kupffer's vesicle cilia, although the 9 + 2 axonemal structure appears to remain normal.
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Affiliation(s)
- Keita Sasaki
- Shimoda Marine Research Center, University of Tsukuba, Shimoda, 415-0025 Japan
| | - Kogiku Shiba
- Shimoda Marine Research Center, University of Tsukuba, Shimoda, 415-0025 Japan
| | - Akihiro Nakamura
- Shimoda Marine Research Center, University of Tsukuba, Shimoda, 415-0025 Japan
- Department of Reproductive Biology, National Center for Child Health and Development, Tokyo, 157-8535 Japan
| | - Natsuko Kawano
- Department of Life Science, School of Agriculture, Meiji University, Kanagawa, 214-8574 Japan
| | - Yuhkoh Satouh
- Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871 Japan
| | - Hiroshi Yamaguchi
- Department of Cell Biology and Anatomy, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-0033 Japan
| | - Motohiro Morikawa
- Department of Cell Biology and Anatomy, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-0033 Japan
| | - Daisuke Shibata
- Shimoda Marine Research Center, University of Tsukuba, Shimoda, 415-0025 Japan
| | - Ryuji Yanase
- Shimoda Marine Research Center, University of Tsukuba, Shimoda, 415-0025 Japan
| | - Kei Jokura
- Shimoda Marine Research Center, University of Tsukuba, Shimoda, 415-0025 Japan
| | - Mami Nomura
- Shimoda Marine Research Center, University of Tsukuba, Shimoda, 415-0025 Japan
| | - Mami Miyado
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, 157-8535 Japan
| | - Shuji Takada
- Department of Systems BioMedicine, National Research Institute for Child Health and Development, Tokyo, 157-8535 Japan
| | - Hironori Ueno
- Molecular Function & Life Sciences, Aichi University of Education, Aichi, 448-8542 Japan
| | - Shigenori Nonaka
- Spatiotemporal Regulations Group, Exploratory Research Center on Life and Living Systems (ExCELLS), Okazaki, 444-8585 Japan
- Laboratory for Spatiotemporal Regulations, National Institute for Basic Biology, Okazaki, 444-8585 Japan
| | - Tadashi Baba
- Faculty of Life and Environmental Sciences, and Life Science Center for Survival Dynamics Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, Tsukuba, 305-8577 Japan
| | - Masahito Ikawa
- Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871 Japan
| | - Masahide Kikkawa
- Department of Cell Biology and Anatomy, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-0033 Japan
| | - Kenji Miyado
- Department of Reproductive Biology, National Center for Child Health and Development, Tokyo, 157-8535 Japan
| | - Kazuo Inaba
- Shimoda Marine Research Center, University of Tsukuba, Shimoda, 415-0025 Japan
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32
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Ogawa S, Yamada M, Nakamura A, Sugawara T, Nakamura A, Miyajima S, Harada Y, Ooka R, Okawa R, Miyauchi J, Tsumura H, Yoshimura Y, Miyado K, Akutsu H, Tanaka M, Umezawa A, Hamatani T. Zscan5b Deficiency Impairs DNA Damage Response and Causes Chromosomal Aberrations during Mitosis. Stem Cell Reports 2019; 12:1366-1379. [PMID: 31155506 PMCID: PMC6565874 DOI: 10.1016/j.stemcr.2019.05.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 05/01/2019] [Accepted: 05/02/2019] [Indexed: 01/01/2023] Open
Abstract
Zygotic genome activation (ZGA) begins after fertilization and is essential for establishing pluripotency and genome stability. However, it is unclear how ZGA genes prevent mitotic errors. Here we show that knockout of the ZGA gene Zscan5b, which encodes a SCAN domain with C2H2 zinc fingers, causes a high incidence of chromosomal abnormalities in embryonic stem cells (ESCs), and leads to the development of early-stage cancers. After irradiation, Zscan5b-deficient ESCs displayed significantly increased levels of γ-H2AX despite increased expression of the DNA repair genes Rad51l3 and Bard. Re-expression of Zscan5b reduced γ-H2AX content, implying a role for Zscan5b in DNA damage repair processes. A co-immunoprecipitation analysis showed that Zscan5b bound to the linker histone H1, suggesting that Zscan5b may protect chromosomal architecture. Our report demonstrates that the ZGA gene Zscan5b is involved in genomic integrity and acts to promote DNA damage repair and regulate chromatin dynamics during mitosis. Deficiency of zygotic genome activation gene Zscan5b causes chromosomal anomalies Zscan5b binds to linker histone H1 and protects chromosomal structure Irradiated Zscan5b-deficient ESCs show significantly increased DNA stress markers Zscan5b-deficient ESCs develop small choriocarcinomas and embryonal carcinomas
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Affiliation(s)
- Seiji Ogawa
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo 160-8582, Japan; Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Ohkura Setagaya-ku, Tokyo 157-8535, Japan
| | - Mitsutoshi Yamada
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo 160-8582, Japan.
| | - Akihiro Nakamura
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Ohkura Setagaya-ku, Tokyo 157-8535, Japan
| | - Tohru Sugawara
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Ohkura Setagaya-ku, Tokyo 157-8535, Japan
| | - Akari Nakamura
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Ohkura Setagaya-ku, Tokyo 157-8535, Japan
| | - Shoko Miyajima
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Ohkura Setagaya-ku, Tokyo 157-8535, Japan
| | - Yuichirou Harada
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Ohkura Setagaya-ku, Tokyo 157-8535, Japan
| | - Reina Ooka
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo 160-8582, Japan
| | - Ryuichiro Okawa
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo 160-8582, Japan
| | - Jun Miyauchi
- Department of Central Laboratory, Saitama Municipal Hospital, 2460 Midori-ku, Saitama, Saitama-ken 336-8522, Japan
| | - Hideki Tsumura
- Division of Laboratory Animal Resources, National Research Institute for Child Health and Development, 2-10-1 Ohkura Setagaya-ku, Tokyo 157-8535, Japan
| | - Yasunori Yoshimura
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo 160-8582, Japan
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Ohkura Setagaya-ku, Tokyo 157-8535, Japan
| | - Hidenori Akutsu
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Ohkura Setagaya-ku, Tokyo 157-8535, Japan
| | - Mamoru Tanaka
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo 160-8582, Japan
| | - Akihiro Umezawa
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Ohkura Setagaya-ku, Tokyo 157-8535, Japan
| | - Toshio Hamatani
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo 160-8582, Japan.
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33
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Miyado M, Kang W, Kawano N, Miyado K. Microexosomes versus exosomes: Shared components but distinct structures. Regen Ther 2019; 11:31-33. [PMID: 31193153 PMCID: PMC6517843 DOI: 10.1016/j.reth.2019.04.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 04/08/2019] [Accepted: 04/23/2019] [Indexed: 10/27/2022] Open
Affiliation(s)
- Mami Miyado
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Woojin Kang
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8353, Japan
| | - Natsuko Kawano
- Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashimita, Tama, Kawasaki, Kanagawa, 214-8571, Japan
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8353, Japan
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34
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Iwai M, Hamatani T, Nakamura A, Kawano N, Kanai S, Kang W, Yoshii N, Odawara Y, Yamada M, Miyamoto Y, Saito T, Saito H, Miyado M, Umezawa A, Miyado K, Tanaka M. Membrane protein CD9 is repositioned and released to enhance uterine function. J Transl Med 2019; 99:200-209. [PMID: 30401958 DOI: 10.1038/s41374-018-0145-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 08/06/2018] [Accepted: 08/21/2018] [Indexed: 12/14/2022] Open
Abstract
Tetraspanin CD9 is essential for sperm-egg fusion and also contributes to uterine repair through microexosome formation. Microexosomes share CD9 with exosomes and are released from eggs and uterine epithelial cells. However, the mechanism for the formation of microexosomes remains unknown. To address this issue, we examined membrane localization and extracellular release of CD9 proteins using uterine epithelial cells and secretions in mice and humans. In mice, CD9 localized predominantly on the basal region of the plasma membrane and relocated to the apical region upon embryo implantation. Furthermore, extracellular CD9 proteins were detected in uterine secretions of mice and women undergoing infertility treatment, but were below detectable levels in supernatants of pluripotent stem cells. Ultrastructural analysis demonstrated that membrane projections were shortened and the number of mitochondria was reduced in uterine epithelial cells lacking Cd9 genes. Our results suggest that CD9 repositioning and release affect both membrane structures and mitochondrial state in the uterus, and contribute to female fertility.
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Affiliation(s)
- Maki Iwai
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, 160-8582, Japan.,Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Toshio Hamatani
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, 160-8582, Japan.
| | - Akihiro Nakamura
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, 160-8582, Japan.,Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Natsuko Kawano
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan.,Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashimita, Kawasaki, Kanagawa, 214-8571, Japan
| | - Seiya Kanai
- Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashimita, Kawasaki, Kanagawa, 214-8571, Japan
| | - Woojin Kang
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan.,Department of Perinatal Medicine and Maternal Care, National Center for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Noriko Yoshii
- Tokyo Adventist Hospital Megumi Clinic, 3-5-2 Amanuma, Suginami, Tokyo, 167-0032, Japan
| | - Yasushi Odawara
- Fertility Clinic Tokyo, 3-13-11 Higashi, Shibuya, Tokyo, 150-0011, Japan
| | - Mitsutoshi Yamada
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, 160-8582, Japan
| | - Yoshitaka Miyamoto
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Takakazu Saito
- Department of Perinatal Medicine and Maternal Care, National Center for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Hidekazu Saito
- Department of Perinatal Medicine and Maternal Care, National Center for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Mami Miyado
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Akihiro Umezawa
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan.
| | - Mamoru Tanaka
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, 160-8582, Japan
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35
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Sasaki H, Hamatani T, Kamijo S, Iwai M, Kobanawa M, Ogawa S, Miyado K, Tanaka M. Impact of Oxidative Stress on Age-Associated Decline in Oocyte Developmental Competence. Front Endocrinol (Lausanne) 2019; 10:811. [PMID: 31824426 PMCID: PMC6882737 DOI: 10.3389/fendo.2019.00811] [Citation(s) in RCA: 143] [Impact Index Per Article: 28.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Accepted: 11/06/2019] [Indexed: 12/20/2022] Open
Abstract
Reproductive capacity in women starts to decline beyond their mid-30s and pregnancies in older women result in higher rates of miscarriage with aneuploidy. Age-related decline in fertility is strongly attributed to ovarian aging, diminished ovarian reserves, and decreased developmental competence of oocytes. In this review, we discuss the underlying mechanisms of age-related decline in oocyte quality, focusing on oxidative stress (OS) in oocytes. The primary cause is the accumulation of spontaneous damage to the mitochondria arising from increased reactive oxygen species (ROS) in oocytes, generated by the mitochondria themselves during daily biological metabolism. Mitochondrial dysfunction reduces ATP synthesis and influences the meiotic spindle assembly responsible for chromosomal segregation. Moreover, reproductively aged oocytes produce a decline in the fidelity of the protective mechanisms against ROS, namely the ROS-scavenging metabolism, repair of ROS-damaged DNA, and the proteasome and autophagy system for ROS-damaged proteins. Accordingly, increased ROS and increased vulnerability of oocytes to ROS lead to spindle instability, chromosomal abnormalities, telomere shortening, and reduced developmental competence of aged oocytes.
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Affiliation(s)
- Hiroyuki Sasaki
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
| | - Toshio Hamatani
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
- *Correspondence: Toshio Hamatani
| | - Shintaro Kamijo
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
| | - Maki Iwai
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
| | - Masato Kobanawa
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
| | - Seiji Ogawa
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
| | - Kenji Miyado
- National Center for Child Health and Development (NCCHD), Tokyo, Japan
| | - Mamoru Tanaka
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
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36
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Ito C, Yamatoya K, Yoshida K, Fujimura L, Sugiyama H, Suganami A, Tamura Y, Hatano M, Miyado K, Toshimori K. Deletion of Eqtn in mice reduces male fertility and sperm–egg adhesion. Reproduction 2018; 156:579-590. [DOI: 10.1530/rep-18-0394] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 10/01/2018] [Indexed: 11/08/2022]
Abstract
A number of sperm proteins are involved in the processes from gamete adhesion to fusion, but the underlying mechanism is still unclear. Here, we established a mouse mutant, the EQUATORIN-knockout (EQTN-KO, Eqtn
−
/
−
) mouse model and found that the EQTN-KO males have reduced fertility and sperm–egg adhesion, while the EQTN-KO females are fertile. Eqtn
−
/
−
sperm were normal in morphology and motility. Eqtn
−
/
−
-Tg (Acr-Egfp) sperm, which were produced as the acrosome reporter by crossing Eqtn
−
/
−
with Eqtn
+/+
-Tg(Acr-Egfp) mice, traveled to the oviduct ampulla and penetrated the egg zona pellucida of WT females. However, Eqtn
−
/
−
males mated with WT females showed significant reduction in both fertility and the number of sperm attached to the zona-free oocyte. Sperm IZUMO1 and egg CD9 behaved normally in Eqtn
−
/
−
sperm when they were fertilized with WT egg. Another acrosomal protein, SPESP1, behaved aberrantly in Eqtn
−
/
−
sperm during the acrosome reaction. The fertility impairment of EQTN/SPESP1-double KO males lacking Eqtn and Spesp1 (Eqtn/Spesp1
−
/
−
) was more severe compared with that of Eqtn
−
/
−
males. Eqtn
−
/
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-Tg (Eqtn) males, which were generated to rescue Eqtn
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males, restored the reduced fertility.
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Affiliation(s)
- Chizuru Ito
- 1Department of Functional Anatomy, Reproductive Biology and Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Kenji Yamatoya
- 1Department of Functional Anatomy, Reproductive Biology and Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
- 2Biomedical Research Center, Chiba University, Chiba, Japan
| | - Keiichi Yoshida
- 1Department of Functional Anatomy, Reproductive Biology and Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Lisa Fujimura
- 2Biomedical Research Center, Chiba University, Chiba, Japan
| | - Hajime Sugiyama
- 3Department of Bioinformatics, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Akiko Suganami
- 4Molecular Chirality Research Center, Chiba University, Chiba Japan
| | - Yutaka Tamura
- 4Molecular Chirality Research Center, Chiba University, Chiba Japan
| | - Masahiko Hatano
- 5Department of Biomedical Science, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Kenji Miyado
- 6Department of Reproductive Biology, National Center for Child Health and Development, Tokyo, Japan
| | - Kiyotaka Toshimori
- 1Department of Functional Anatomy, Reproductive Biology and Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
- 7Future Medicine Research Center, Chiba University, Chiba, Japan
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37
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Iwai M, Harada Y, Miyabayashi R, Kang W, Nakamura A, Kawano N, Miyamoto Y, Yamada M, Hamatani T, Miyado M, Yoshida K, Saito H, Tanaka M, Umezawa A, Miyado K. Chemotactic behavior of egg mitochondria in response to sperm fusion in mice. Heliyon 2018; 4:e00944. [PMID: 30480160 PMCID: PMC6240845 DOI: 10.1016/j.heliyon.2018.e00944] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 07/09/2018] [Accepted: 11/14/2018] [Indexed: 12/05/2022] Open
Abstract
Mitochondria are the powerhouses of eukaryotic cells and their positioning contributes to fertilization and early developmental processes. We report that sperm fusion triggers Ca2+ oscillations and mitochondrial movement toward fused sperm (mitochondrial chemotaxis) in mouse eggs. Mitochondria functioned in Ca2+ storage and were colocalized with endoplasmic reticulum (ER) during Ca2+ oscillations. Mitochondria then moved toward the fused sperm. Sperm extracts lacking nuclei induced Ca2+ oscillations, but did not promote mitochondrial chemotaxis. Our results suggest that sperm fusion motivates Ca2+ oscillation-independent mitochondrial chemotaxis. This phenomenon indicates that egg mitochondria interact with sperm materials, presumably nuclear substances, and their network tethers egg and sperm nuclei at the early stage of zygote formation.
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Affiliation(s)
- Maki Iwai
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan.,Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
| | - Yuichirou Harada
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku, Tokyo 192-0397, Japan
| | | | - Woojin Kang
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan.,Department of Perinatal Medicine and Oocyte Care, National Center for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
| | - Akihiro Nakamura
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan.,Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
| | - Natsuko Kawano
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan.,Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashimita, Tama, Kawasaki, Kanagawa 214-8571, Japan
| | - Yoshitaka Miyamoto
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
| | - Mitsutoshi Yamada
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan
| | - Toshio Hamatani
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan
| | - Mami Miyado
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
| | - Keiichi Yoshida
- Advanced Medicine, Innovation and Clinical Research Center, Tottori University Hospital, 36-1 Nishicho, Yonago, Tottori 683-8504, Japan
| | - Hidekazu Saito
- Department of Perinatal Medicine and Oocyte Care, National Center for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
| | - Mamoru Tanaka
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan
| | - Akihiro Umezawa
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
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38
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Nakamura A, Kawano N, Motomura K, Kuroda A, Sekiguchi K, Miyado M, Kang W, Miyamoto Y, Hanai M, Iwai M, Yamada M, Hamatani T, Saito T, Saito H, Tanaka M, Umezawa A, Miyado K. Degradation of phosphate polymer polyP enhances lactic fermentation in mice. Genes Cells 2018; 23:904-914. [PMID: 30144248 DOI: 10.1111/gtc.12639] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 08/08/2018] [Accepted: 08/14/2018] [Indexed: 01/10/2023]
Abstract
In bacteria, a polymer of inorganic phosphate (Pi) (inorganic polyphosphate; polyP) is enzymatically produced and consumed as an alternative phosphate donor for adenosine triphosphate (ATP) production to protect against nutrient starvation. In vertebrates, polyP has been dismissed as a "molecular fossil" due to the lack of any known physiological function. Here, we have explored its possible role by producing transgenic (TG) mice widely expressing Saccharomyces cerevisiae exopolyphosphatase 1 (ScPPX1), which catalyzes hydrolytic polyP degradation. TG mice were produced and displayed reduced mitochondrial respiration in muscles. In female TG mice, the blood concentration of lactic acid was enhanced, whereas ATP storage in liver and brain tissues was reduced significantly. Thus, we suggested that the elongation of polyP reduces the intracellular Pi concentration, suppresses anaerobic lactic acid production, and sustains mitochondrial respiration. Our results provide an insight into the physiological role of polyP in mammals, particularly in females.
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Affiliation(s)
- Akihiro Nakamura
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Shinjuku, Tokyo, Japan.,Department of Reproductive Biology, National Research Institute for Child Health and Development, Setagaya, Tokyo, Japan
| | - Natsuko Kawano
- Department of Life Sciences, School of Agriculture, Meiji University, Tama, Kawasaki, Kanagawa, Japan
| | - Kei Motomura
- Department of Molecular Biotechnology, Graduate School of Advanced Sciences of Matter, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
| | - Akio Kuroda
- Department of Molecular Biotechnology, Graduate School of Advanced Sciences of Matter, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
| | | | - Mami Miyado
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Setagaya, Tokyo, Japan
| | - Woojin Kang
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Setagaya, Tokyo, Japan
| | - Yoshitaka Miyamoto
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Setagaya, Tokyo, Japan
| | - Maito Hanai
- Department of Life Sciences, School of Agriculture, Meiji University, Tama, Kawasaki, Kanagawa, Japan
| | - Maki Iwai
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Shinjuku, Tokyo, Japan
| | - Mitsutoshi Yamada
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Shinjuku, Tokyo, Japan
| | - Toshio Hamatani
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Shinjuku, Tokyo, Japan
| | - Takakazu Saito
- Department of Perinatal Medicine and Maternal Care, National Center for Child Health and Development, Setagaya, Tokyo, Japan
| | - Hidekazu Saito
- Department of Perinatal Medicine and Maternal Care, National Center for Child Health and Development, Setagaya, Tokyo, Japan
| | - Mamoru Tanaka
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Shinjuku, Tokyo, Japan
| | - Akihiro Umezawa
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Setagaya, Tokyo, Japan
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Setagaya, Tokyo, Japan
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39
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Kang W, Ishida E, Yamatoya K, Nakamura A, Miyado M, Miyamoto Y, Iwai M, Tatsumi K, Saito T, Saito K, Kawano N, Hamatani T, Umezawa A, Miyado K, Saito H. Autophagy-disrupted LC3 abundance leads to death of supporting cells of human oocytes. Biochem Biophys Rep 2018; 15:107-114. [PMID: 30140750 PMCID: PMC6104557 DOI: 10.1016/j.bbrep.2018.08.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 06/27/2018] [Accepted: 08/06/2018] [Indexed: 02/03/2023] Open
Abstract
Autophagic recycling of cell parts is generally termed as the opposite of cell death. Here, we explored the relation between cell death and autophagy by examining granulosa cell layers that control oocyte quality, which is important for the success of fertilization. Granulosa cell layers were collected from infertile women and morphologically divided into four types, viz., mature (MCCs), immature (ICCs), and dysmature cumulus cells (DCCs), and mural granulosa cells (MGCs). Microtubule-associated protein light chain 3 (LC3), which is involved in autophagosome formation, was expressed excessively in DCCs and MGCs, and their chromosomal DNA was highly fragmented. However, autophagy initiation was limited to MGCs, as indicated by the expression of membrane-bound LC3-II and autophagy-related protein 7 (ATG7), an enzyme that converts LC3-I to LC3-II. Although pro-LC3 was accumulated, autophagy was disabled in DCCs, resulting in cell death. Our results suggest the possibility that autophagy-independent accumulation of pro-LC3 proteins leads to the death of human granulosa cells surrounding the oocytes and presumably reduces oocyte quality and female fertility.
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Affiliation(s)
- Woojin Kang
- Department of Perinatal Medicine and Maternal Care, National Center for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
| | - Eri Ishida
- Department of Perinatal Medicine and Maternal Care, National Center for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
| | - Kenji Yamatoya
- Department of Applied Biological Science, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Akihiro Nakamura
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan
| | - Mami Miyado
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
| | - Yoshitaka Miyamoto
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
| | - Maki Iwai
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan
| | - Kuniko Tatsumi
- Department of Perinatal Medicine and Maternal Care, National Center for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
| | - Takakazu Saito
- Department of Perinatal Medicine and Maternal Care, National Center for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
| | - Kazuki Saito
- Department of Perinatal Medicine and Maternal Care, National Center for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
| | - Natsuko Kawano
- Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashimita, Kawasaki, Kanagawa 214-8571, Japan
| | - Toshio Hamatani
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan
| | - Akihiro Umezawa
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
- Corresponding authors.
| | - Hidekazu Saito
- Department of Perinatal Medicine and Maternal Care, National Center for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
- Corresponding authors.
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40
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Yoshida K, Kang W, Nakamura A, Kawano N, Hanai M, Miyado M, Miyamoto Y, Iwai M, Hamatani T, Saito H, Miyado K, Umezawa A. Ubiquitin-activating enzyme E1 inhibitor PYR-41 retards sperm enlargement after fusion to the egg. Reprod Toxicol 2018; 76:71-77. [PMID: 29355596 DOI: 10.1016/j.reprotox.2018.01.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Revised: 12/28/2017] [Accepted: 01/16/2018] [Indexed: 01/01/2023]
Abstract
The ubiquitin-proteasome system, which is initiated by a single ubiquitin-activating enzyme E1 (UBE1), is involved in male reproduction via spermatogenesis and function in mammals. Here we explored the influence of UBE1-specific inhibitor, 4[4-(5-nitro-furan-2-ylmethylene)-3,5-dioxo-pyrazolidin-1-yl]-benzoic acid ethyl ester (pyrazone-41 or PYR-41) in female reproduction. UBE-1 was detected by immunoblotting and immunocytochemistry in mouse eggs and was localized mainly under the egg plasma membrane. PYR-41 pretreatment suppresses the development of eggs into two-cell embryos. Specifically, pretreatment retarded sperm enlargement and meiotic chromosomal division after sperm-egg fusion. PYR-41 pretreatment disturbed β-catenin, a well-known target protein for ubiquitination, localization under the egg plasma membrane and on spindle microtubules in wild-type eggs. Otherwise, PYR-41 treatment had no effect on the two-cell development of eggs lacking β-catenin. Our results raise the possibility that inhibition of the ubiquitin-proteasome system suppresses sperm enlargement through impaired β-catenin-mediated mechanism.
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Affiliation(s)
- Keiichi Yoshida
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan.
| | - Woojin Kang
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan; Department of Perinatal Medicine and Maternal Care, National Center for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Akihiro Nakamura
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan; Department of Life Sciences, School of Agriculture, Meiji University, Kawasaki, Kanagawa, 214-8571, Japan
| | - Natsuko Kawano
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan; Department of Life Sciences, School of Agriculture, Meiji University, Kawasaki, Kanagawa, 214-8571, Japan
| | - Maito Hanai
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan; Department of Life Sciences, School of Agriculture, Meiji University, Kawasaki, Kanagawa, 214-8571, Japan
| | - Mami Miyado
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Yoshitaka Miyamoto
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Maki Iwai
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, 160-8582, Japan
| | - Toshio Hamatani
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, 160-8582, Japan
| | - Hidekazu Saito
- Department of Perinatal Medicine and Maternal Care, National Center for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan.
| | - Akihiro Umezawa
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
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Yamatoya K, Saito K, Saito T, Kang W, Nakamura A, Miyado M, Kawano N, Miyamoto Y, Umezawa A, Miyado K, Saito H. Birthweights and Down syndrome in neonates that were delivered after frozen-thawed embryo transfer: The 2007-2012 Japan Society of Obstetrics and Gynecology National Registry data in Japan. Reprod Med Biol 2017; 16:228-234. [PMID: 29259472 PMCID: PMC5661821 DOI: 10.1002/rmb2.12033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2016] [Accepted: 02/10/2017] [Indexed: 11/08/2022] Open
Abstract
Aim To evaluate the use of frozen embryos on the outcome of assisted reproductive technology (ART), a retrospective study of the Japanese Assisted Reproductive Technology Registry data during the years 2007‐2012 was conducted. Methods A total of 124 946 singleton neonates who reached term gestation following ART from 2007‐2012, with 80 660 achieved through frozen‐thawed embryo transfer (ET) and 44 286 being achieved through fresh ET, were analyzed for their birthweights and chromosomal abnormalities. Results The birthweight of the neonates from the frozen‐thawed ETs was significantly higher than that of those from the fresh ETs throughout all the study years. The frequency of Down syndrome was 0.17% for the fresh ETs and 0.13% for the frozen‐thawed ETs in the period 2007‐2012. This study showed that frozen‐thawed ETs result in a constant increase of the average birthweight between 37 and 41 weeks gestational age and lower frequencies of Down syndrome. Conclusion Frozen‐thawed ETs were comparable to the fresh ET method, with the exceptions of higher birthweights and a lower frequency of Down syndrome in the neonates that were born from frozen‐thawed ET. The increase in birthweights was not proportional to the gestational ages. This cannot be explained with any well‐known mechanism. The frequency of chromosomal abnormalities needs detailed data for analysis.
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Affiliation(s)
- Kenji Yamatoya
- Department of Perinatal Medicine and Maternal Care National Center for Child Health and Development Tokyo Japan.,Department of Reproductive Biology National Research Institute for Child Health and Development Tokyo Japan
| | - Kazuki Saito
- Department of Perinatal Medicine and Maternal Care National Center for Child Health and Development Tokyo Japan.,Department of Molecular Endocrinology National Research Institute for Child Health and Development Tokyo Japan
| | - Takakazu Saito
- Department of Perinatal Medicine and Maternal Care National Center for Child Health and Development Tokyo Japan
| | - Woojin Kang
- Department of Perinatal Medicine and Maternal Care National Center for Child Health and Development Tokyo Japan.,Department of Reproductive Biology National Research Institute for Child Health and Development Tokyo Japan
| | - Akihiro Nakamura
- Department of Life Sciences School of Agriculture Meiji University Kawasaki Japan
| | - Mami Miyado
- Department of Molecular Endocrinology National Research Institute for Child Health and Development Tokyo Japan
| | - Natsuko Kawano
- Department of Reproductive Biology National Research Institute for Child Health and Development Tokyo Japan.,Department of Life Sciences School of Agriculture Meiji University Kawasaki Japan
| | - Yoshitaka Miyamoto
- Department of Reproductive Biology National Research Institute for Child Health and Development Tokyo Japan
| | - Akihiro Umezawa
- Department of Reproductive Biology National Research Institute for Child Health and Development Tokyo Japan
| | - Kenji Miyado
- Department of Reproductive Biology National Research Institute for Child Health and Development Tokyo Japan
| | - Hidekazu Saito
- Department of Perinatal Medicine and Maternal Care National Center for Child Health and Development Tokyo Japan
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42
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Miyado M, Yoshida K, Miyado K, Katsumi M, Saito K, Nakamura S, Ogata T, Fukami M. Knockout of Murine Mamld1 Impairs Testicular Growth and Daily Sperm Production but Permits Normal Postnatal Androgen Production and Fertility. Int J Mol Sci 2017. [PMID: 28629181 PMCID: PMC5486121 DOI: 10.3390/ijms18061300] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
MAMLD1 has been implicated in testicular function in both human and mouse fetuses. Although three patients with MAMLD1 mutations were reported to have hypergonadotropic hypogonadism in their teens, the functional significance of MAMLD1 in the postnatal testis remains unclear. Here, we analyzed the phenotype of Mamld1 knockout (KO) male mice at reproductive ages. The reproductive organs of KO male mice were morphologically unremarkable, except for relatively small testes. Seminiferous tubule size and number of proliferating spermatogonia/spermatocytes were reduced in the KO testis. Daily sperm production of KO mice was mildly attenuated, whereas total sperm counts in epididymal semen remained normal. Sperm motility and morphology, as well as androgen levels in serum and testicular tissues and the number of pups born from cross-mated wildtype (WT) female mice, were comparable between WT and KO male mice. These results indicate that MAMLD1 contributes to the maintenance of postnatal testicular growth and daily sperm production but is dispensable for androgen biosynthesis and fertility. MAMLD1 likely plays supporting roles in multiple and continuous steps of male reproduction.
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Affiliation(s)
- Mami Miyado
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan.
| | - Kaoru Yoshida
- Faculty of Biomedical Engineering, Toin University of Yokohama, Yokohama 225-8502, Japan.
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan.
| | - Momori Katsumi
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan.
- Department of NCCHD Child Health and Development, Graduate School, Tokyo Medical and Dental University, Tokyo 113-8510, Japan.
| | - Kazuki Saito
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan.
- Department of Comprehensive Reproductive Medicine, Graduate School, Tokyo Medical and Dental University, Tokyo 113-8510, Japan.
| | - Shigeru Nakamura
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan.
- Department of Pediatric Urology, Jichi Medical University, Children's Medical Center Tochigi, Tochigi 329-0498, Japan.
| | - Tsutomu Ogata
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan.
- Department of Pediatrics, Hamamatsu University School of Medicine, Hamamatsu 431-3192, Japan.
| | - Maki Fukami
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan.
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43
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Miyado K, Kang W, Yamatoya K, Hanai M, Nakamura A, Mori T, Miyado M, Kawano N. Exosomes versus microexosomes: Shared components but distinct functions. J Plant Res 2017; 130:479-483. [PMID: 28160150 DOI: 10.1007/s10265-017-0907-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 11/29/2016] [Indexed: 06/06/2023]
Abstract
In multicellular organisms, cellular components are constantly translocated within cells and are also transported exclusively between limited cells, regardless of their physical distance. Exosomes function as one of the key mediators of intercellular transportation. External vesicles were identified 50 years ago in plants and now reconsidered to be exosome-like vesicles. Meanwhile, a well-known exosomal component, tetraspanin CD9, regulates sperm-egg fusion in mammals. A number of Arabidopsis tetraspanins are also expressed in reproductive tissues at fertilization, and are localized at the plasma membrane of protoplasts. Moreover, CD9-containing structures (or 'microexosomes') are released from mouse eggs during their maturation and promote the sperm-egg fusion. This phenomenon implies that two types of shared-component intercellular carriers might be released from multiple types of plant and animal cells, which widely regulate biological phenomena. We herein highlight their discrete structures, formation processes, and functions.
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Affiliation(s)
- Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan.
| | - Woojin Kang
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
- Department of Perinatal Medicine and Maternal Care, National Center for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Kenji Yamatoya
- Department of Applied Biological Science, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan
| | - Maito Hanai
- Department of Life Sciences, School of Agriculture, Meiji University, Kawasaki, Kanagawa, 214-8571, Japan
| | - Akihiro Nakamura
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
- Department of Life Sciences, School of Agriculture, Meiji University, Kawasaki, Kanagawa, 214-8571, Japan
| | - Toshiyuki Mori
- Department of Tropical Medicine and Parasitology, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Mami Miyado
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Natsuko Kawano
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan.
- Department of Life Sciences, School of Agriculture, Meiji University, Kawasaki, Kanagawa, 214-8571, Japan.
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Miyado M, Miyado K, Nakamura A, Fukami M, Yamada G, Oda SI. Expression patterns of Fgf8 and Shh in the developing external genitalia of Suncus murinus. Reproduction 2017; 153:187-195. [DOI: 10.1530/rep-16-0231] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 11/10/2016] [Accepted: 11/14/2016] [Indexed: 01/23/2023]
Abstract
Reciprocal epithelial–mesenchymal interactions and several signalling pathways regulate the development of the genital tubercle (GT), an embryonic primordium of external genitalia. The morphology of the adult male external genitalia of the Asian house musk shrew Suncus murinus (hereafter, laboratory name: suncus) belonging to the order Eulipotyphla (the former order Insectivora or Soricomorpha) differs from those of mice and humans. However, the developmental process of the suncus GT and its regulatory genes are unknown. In the present study, we explored the morphological changes and gene expression patterns during the development of the suncus GT. Morphological observations suggested the presence of common (during the initial outgrowth) and species-specific (during the sexual differentiation of GT) developmental processes of the suncus GT. In gene expression analysis, fibroblast growth factor 8 (Fgf8) and sonic hedgehog (Shh), an indicator and regulator of GT development in mice respectively, were found to be expressed in the cloacal epithelium and the developing urethral epithelium of the suncus GT. This pattern of expression specifically in GT epithelium is similar to that observed in the developing mouse GT. Our results indicate that the mechanism of GT formation regulated by the FGF and SHH signalling pathways is widely conserved in mammals.
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Saito K, Miyado K, Yamatoya K, Kuwahara A, Inoue E, Miyado M, Fukami M, Ishikawa T, Saito T, Kubota T, Saito H. Increased incidence of post-term delivery and Cesarean section after frozen-thawed embryo transfer during a hormone replacement cycle. J Assist Reprod Genet 2017; 34:465-470. [PMID: 28108841 DOI: 10.1007/s10815-017-0869-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 01/05/2017] [Indexed: 11/29/2022] Open
Abstract
PURPOSE This study aimed to clarify the risks of adverse pregnancy outcomes in patients who conceive singletons after frozen embryo transfer (FET) during a hormone replacement cycle and their offspring. METHODS A retrospective cohort study was conducted in patients who conceived after FET, based on the Japanese-assisted reproductive technology registry for 2013. The perinatal outcomes in cases with live-born singletons achieved through natural ovulatory cycle FET (NC-FET) (n = 6287) or hormone replacement cycle FET (HRC-FET) (n = 10,235) were compared. Multiple logistic regression analyses were performed to determine the potential confounding factors. RESULTS The frequencies of macrosomia (1.1% in NC-FET and 1.4% in HRC-FET; P = 0.058) were comparable between patients after NC-FET and HRC-FET. The proportions of post-term delivery (0.2% in NC-FET and 1.3% in HRC-FET; P < 0.001) and Cesarean section (33.6% in NC-FET and 43.0% in HRC-FET; P < 0.001) were higher in patients after HRC-FET than in patients after NC-FET. The risks of post-term delivery (adjusted odds ratio (AOR) 5.68, 95% confidence interval (CI) 3.30-9.80) and Cesarean section (AOR 1.64, 95% CI 1.52-1.76) were also higher in patients after HRC-FET than in patients after NC-FET. CONCLUSIONS Patients who conceived singletons after HRC-FET were at increased risk of post-term delivery and Cesarean section compared with those who conceived after NC-FET.
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Affiliation(s)
- Kazuki Saito
- Department of Perinatal Medicine and Maternal Care, National Center for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan.,Department of Comprehensive Reproductive Medicine, Graduate School, Tokyo Medical and Dental University, Tokyo, 113-8510, Japan.,Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, 157-8535, Japan
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo, 157-8535, Japan
| | - Kenji Yamatoya
- Department of Perinatal Medicine and Maternal Care, National Center for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan.,Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo, 157-8535, Japan
| | - Akira Kuwahara
- Department of Obstetrics and Gynecology, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, 770-8503, Japan
| | - Eisuke Inoue
- Division of Statistical Analysis, Center for Clinical Research and Development, National Center for Child Health and Development, Tokyo, 157-8535, Japan
| | - Mami Miyado
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, 157-8535, Japan
| | - Maki Fukami
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, 157-8535, Japan
| | - Tomonori Ishikawa
- Department of Comprehensive Reproductive Medicine, Graduate School, Tokyo Medical and Dental University, Tokyo, 113-8510, Japan
| | - Takakazu Saito
- Department of Perinatal Medicine and Maternal Care, National Center for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Toshiro Kubota
- Department of Comprehensive Reproductive Medicine, Graduate School, Tokyo Medical and Dental University, Tokyo, 113-8510, Japan
| | - Hidekazu Saito
- Department of Perinatal Medicine and Maternal Care, National Center for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan.
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Miyado M, Inui M, Igarashi M, Katoh-Fukui Y, Takasawa K, Hakoda A, Kanno J, Kashimada K, Miyado K, Tamano M, Ogata T, Takada S, Fukami M. The p.R92W variant of NR5A1/Nr5a1 induces testicular development of 46,XX gonads in humans, but not in mice: phenotypic comparison of human patients and mutation-induced mice. Biol Sex Differ 2016; 7:56. [PMID: 27833742 PMCID: PMC5101639 DOI: 10.1186/s13293-016-0114-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 11/01/2016] [Indexed: 11/10/2022] Open
Abstract
NR5A1 is the key regulator of adrenal and gonadal development in both humans and mice. Recently, a missense substitution in human NR5A1, p.R92W, was shown to underlie gonadal dysgenesis in genetic males and testicular formation in genetic females. Here, we investigated the phenotypic effects of the p.R92W mutation on murine development. Mice carrying the p.R92W mutation manifested a similar but milder phenotype than that of the previously described Nr5a1 knockout mice. Importantly, mutation-positive XX mice showed no signs of masculinization. These results, together with prior observations, indicate that the p.R92W mutation in NR5A1/Nr5a1 encodes unique molecules that disrupt male gonadal development in both humans and mice and induces testicular formation specifically in human females. Our findings provide novel insights into the conservation and divergence in the molecular networks underlying mammalian sexual development.
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Affiliation(s)
- Mami Miyado
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, 157-8535 Japan
| | - Masafumi Inui
- Department of Systems BioMedicine, National Research Institute for Child Health and Development, Tokyo, 157-8535 Japan
| | - Maki Igarashi
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, 157-8535 Japan
| | - Yuko Katoh-Fukui
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, 157-8535 Japan
| | - Kei Takasawa
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, 113-8510 Japan
| | - Akiko Hakoda
- Department of Endocrinology, Miyagi Children's Hospital, Sendai, 989-3126 Japan
| | - Junko Kanno
- Department of Endocrinology, Miyagi Children's Hospital, Sendai, 989-3126 Japan
| | - Kenichi Kashimada
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, 113-8510 Japan
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo, 157-8535 Japan
| | - Moe Tamano
- Department of Systems BioMedicine, National Research Institute for Child Health and Development, Tokyo, 157-8535 Japan
| | - Tsutomu Ogata
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, 157-8535 Japan ; Department of Pediatrics, Hamamatsu University School of Medicine, Hamamatsu, 431-3192 Japan
| | - Shuji Takada
- Department of Systems BioMedicine, National Research Institute for Child Health and Development, Tokyo, 157-8535 Japan
| | - Maki Fukami
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, 157-8535 Japan
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Araki N, Kawano N, Kang W, Miyado K, Yoshida K, Yoshida M. Seminal vesicle proteins SVS3 and SVS4 facilitate SVS2 effect on sperm capacitation. Reproduction 2016; 152:313-21. [PMID: 27486266 DOI: 10.1530/rep-15-0551] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Accepted: 08/01/2016] [Indexed: 12/21/2022]
Abstract
Mammalian spermatozoa acquire their fertilizing ability in the female reproductive tract (sperm capacitation). On the other hand, seminal vesicle secretion, which is a major component of seminal plasma, inhibits the initiation of sperm capacitation (capacitation inhibition) and reduces the fertility of the capacitated spermatozoa (decapacitation). There are seven major proteins involved in murine seminal vesicle secretion (SVS1-7), and we have previously shown that SVS2 acts as both a capacitation inhibitor and a decapacitation factor, and is indispensable for in vivo fertilization. However, the effects of SVSs other than SVS2 on the sperm have not been elucidated. Since mouse Svs2-Svs6 genes evolved by gene duplication belong to the same gene family, it is possible that SVSs other than SVS2 also have some effects on sperm capacitation. In this study, we examined the effects of SVS3 and SVS4 on sperm capacitation. Our results showed that both SVS3 and SVS4 are able to bind to spermatozoa, but SVS3 alone showed no effects on sperm capacitation. On the other hand, SVS4 acted as a capacitation inhibitor, although it did not show decapacitation abilities. Interestingly, SVS3 showed an affinity for SVS2 and it facilitated the effects of SVS2. Interaction of SVS2 and spermatozoa is mediated by the ganglioside GM1 in the sperm membrane; however, both SVS3 and SVS4 had weaker affinities for GM1 than SVS2. Therefore, we suggest that separate processes may cause capacitation inhibition and decapacitation, and SVS3 and SVS4 act on sperm capacitation cooperatively with SVS2.
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Affiliation(s)
- Naoya Araki
- Misaki Marine Biological StationSchool of Science, The University of Tokyo, Miura, Kanagawa, Japan
| | - Natsuko Kawano
- Department of AgricultureMeiji University, Kawasaki, Kanagawa, Japan Department of Reproductive BiologyNational Center for Child Health and Development, Setagaya, Tokyo, Japan
| | - Woojin Kang
- Department of AgricultureMeiji University, Kawasaki, Kanagawa, Japan Department of Reproductive BiologyNational Center for Child Health and Development, Setagaya, Tokyo, Japan
| | - Kenji Miyado
- Department of Reproductive BiologyNational Center for Child Health and Development, Setagaya, Tokyo, Japan
| | - Kaoru Yoshida
- Biomedical Engineering CenterToin University of Yokohama, Yokohama, Kanagawa, Japan
| | - Manabu Yoshida
- Misaki Marine Biological StationSchool of Science, The University of Tokyo, Miura, Kanagawa, Japan Center for Marine BiologyThe University of Tokyo, Miura, Kanagawa, Japan
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Furuta T, Miyaki S, Ishitobi H, Ogura T, Kato Y, Kamei N, Miyado K, Higashi Y, Ochi M. Mesenchymal Stem Cell-Derived Exosomes Promote Fracture Healing in a Mouse Model. Stem Cells Transl Med 2016; 5:1620-1630. [PMID: 27460850 DOI: 10.5966/sctm.2015-0285] [Citation(s) in RCA: 298] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 06/28/2016] [Indexed: 12/13/2022] Open
Abstract
: Paracrine signaling by bone-marrow-derived mesenchymal stem cells (MSCs) plays a major role in tissue repair. Although the production of regulatory cytokines by MSC transplantation is a critical modulator of tissue regeneration, we focused on exosomes, which are extracellular vesicles that contain proteins and nucleic acids, as a novel additional modulator of cell-to-cell communication and tissue regeneration. To address this, we used radiologic imaging, histological examination, and immunohistochemical analysis to evaluate the role of exosomes isolated from MSC-conditioned medium (CM) in the healing process in a femur fracture model of CD9-/- mice, a strain that is known to produce reduced levels of exosomes. We found that the bone union rate in CD9-/- mice was significantly lower than wild-type mice because of the retardation of callus formation. The retardation of fracture healing in CD9-/- mice was rescued by the injection of exosomes, but this was not the case after the injection of exosomes-free conditioned medium (CM-Exo). The levels of the bone repair-related cytokines, monocyte chemotactic protein-1 (MCP-1), MCP-3, and stromal cell-derived factor-1 in exosomes were low compared with levels in CM and CM-Exo, suggesting that bone repair may be in part mediated by other exosome components, such as microRNAs. These results suggest that exosomes in CM facilitate the acceleration of fracture healing, and we conclude that exosomes are a novel factor of MSC paracrine signaling with an important role in the tissue repair process. SIGNIFICANCE This work focuses on exosomes, which are extracellular vesicles, as a novel additional modulator of cell-to-cell communication. This study evaluated the role of exosomes isolated from mesenchymal stem cell (MSC)-conditioned medium (MSC-CM) in the fracture-healing process of CD9-/- mice, a strain that is known to produce reduced levels of exosomes. Retardation of fracture healing in CD9-/- mice was rescued by the injection of MSC exosomes, but this was not the case after the injection of exosome-free CM. This study finds that MSC exosomes are a novel factor of MSC paracrine signaling, with an important role in the tissue repair process.
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Affiliation(s)
- Taisuke Furuta
- Department of Orthopaedics Surgery, Integrated Health Sciences, Institute of Biomedical and Health Science, Hiroshima University, Hiroshima, Japan
| | - Shigeru Miyaki
- Department of Orthopaedics Surgery, Integrated Health Sciences, Institute of Biomedical and Health Science, Hiroshima University, Hiroshima, Japan
- Department of Regenerative Medicine, Medical Center for Translational and Clinical Research, Hiroshima University Hospital, Hiroshima, Japan
| | - Hiroyuki Ishitobi
- Department of Regenerative Medicine, Medical Center for Translational and Clinical Research, Hiroshima University Hospital, Hiroshima, Japan
| | - Toshihiko Ogura
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan
| | - Yoshio Kato
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan
| | - Naosuke Kamei
- Department of Orthopaedics Surgery, Integrated Health Sciences, Institute of Biomedical and Health Science, Hiroshima University, Hiroshima, Japan
- Department of Regenerative Medicine, Medical Center for Translational and Clinical Research, Hiroshima University Hospital, Hiroshima, Japan
| | - Kenji Miyado
- Department of Reproductive Biology, National Center for Child Health and Development, Tokyo, Japan
| | - Yukihito Higashi
- Department of Regenerative Medicine, Medical Center for Translational and Clinical Research, Hiroshima University Hospital, Hiroshima, Japan
| | - Mitsuo Ochi
- Department of Orthopaedics Surgery, Integrated Health Sciences, Institute of Biomedical and Health Science, Hiroshima University, Hiroshima, Japan
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Nakamura A, Miyado K, Yamatoya K, Kawano N, Umezawa A. Breast milk stimulates growth hormone secretion in infant mice, and phosphorus insufficiency disables this ability and causes dwarfism-like symptoms. Regen Ther 2015; 2:49-56. [PMID: 31245459 PMCID: PMC6581769 DOI: 10.1016/j.reth.2015.11.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 09/29/2015] [Accepted: 11/05/2015] [Indexed: 11/29/2022] Open
Abstract
INTRODUCTION Breast milk intake facilitates neonatal growth, and its effect is assumed to last long into the adulthood. We recently reported that dietary phosphorus insufficiency reduces the ability of breast milk to promote infant growth in mice. However, how phosphorus confers this ability to milk is still unclear. METHODS To address this issue, we performed biochemical and physiological comparisons of milk secreted from C57BL/6J mice fed a low-phosphorus diet (LPD) or a normal-phosphorus control diet. RESULTS Although serum phosphorus concentration was decreased, the body weight of mother mice was unaffected. By contrast, infant body weight was significantly reduced, and dwarfism-like symptoms were observed in adulthood. Quantitative analysis revealed that the serum concentration of growth hormone (GH) was substantially reduced, and concomitantly insulin-like growth factor 1 and fibroblast growth factor 23 were decreased. Immunohistochemical analysis revealed ectopic fat accumulation in the livers of infant mice along with increased blood cholesterol level. Moreover, electron microscopy indicated fragility of the outer membrane of milk droplets. CONCLUSIONS Our results suggest that phosphorus is essential for the formation of milk droplets, which function as a stimulator of growth factor secretion in infant offspring.
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Affiliation(s)
- Akihiro Nakamura
- Shimoda Marine Research Center, University of Tsukuba, Shimoda 5-10-1, Shizuoka 415-0025, Japan
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
| | - Kenji Yamatoya
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
- Department of Perinatal Medicine and Maternal Care, National Center for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
| | - Natsuko Kawano
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
- Department of Life Sciences, School of Agriculture, Meiji University, Kawasaki, Kanagawa 214-8571, Japan
| | - Akihiro Umezawa
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
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Miyado M, Miyado K, Katsumi M, Saito K, Nakamura A, Shihara D, Ogata T, Fukami M. Parturition failure in mice lacking Mamld1. Sci Rep 2015; 5:14705. [PMID: 26435405 PMCID: PMC4592954 DOI: 10.1038/srep14705] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [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] [Received: 06/05/2015] [Accepted: 09/07/2015] [Indexed: 11/13/2022] Open
Abstract
In mice, the onset of parturition is triggered by a rapid decline in circulating progesterone. Progesterone withdrawal occurs as a result of functional luteolysis, which is characterized by an increase in the enzymatic activity of 20α-hydroxysteroid dehydrogenase (20α-HSD) in the corpus luteum and is mediated by the prostaglandin F2α (PGF2α) signaling. Here, we report that the genetic knockout (KO) of Mamld1, which encodes a putative non-DNA-binding regulator of testicular steroidogenesis, caused defective functional luteolysis and subsequent parturition failure and neonatal deaths. Progesterone receptor inhibition induced the onset of parturition in pregnant KO mice, and MAMLD1 regulated the expression of Akr1c18, the gene encoding 20α-HSD, in cultured cells. Ovaries of KO mice at late gestation were morphologically unremarkable; however, Akr1c18 expression was reduced and expression of its suppressor Stat5b was markedly increased. Several other genes including Prlr, Cyp19a1, Oxtr, and Lgals3 were also dysregulated in the KO ovaries, whereas PGF2α signaling genes remained unaffected. These results highlight the role of MAMLD1 in labour initiation. MAMLD1 likely participates in functional luteolysis by regulating Stat5b and other genes, independent of the PGF2α signaling pathway.
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Affiliation(s)
- Mami Miyado
- Department of Molecular Endocrinology, National Research Institute of Child Health and Development, Tokyo 157-8535, Japan
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute of Child Health and Development, Tokyo 157-8535, Japan
| | - Momori Katsumi
- Department of Molecular Endocrinology, National Research Institute of Child Health and Development, Tokyo 157-8535, Japan
| | - Kazuki Saito
- Department of Molecular Endocrinology, National Research Institute of Child Health and Development, Tokyo 157-8535, Japan
| | - Akihiro Nakamura
- Department of Reproductive Biology, National Research Institute of Child Health and Development, Tokyo 157-8535, Japan
| | - Daizou Shihara
- Department of Molecular Endocrinology, National Research Institute of Child Health and Development, Tokyo 157-8535, Japan
| | - Tsutomu Ogata
- Department of Molecular Endocrinology, National Research Institute of Child Health and Development, Tokyo 157-8535, Japan.,Department of Pediatrics, Hamamatsu University School of Medicine, Hamamatsu 431-3192, Japan
| | - Maki Fukami
- Department of Molecular Endocrinology, National Research Institute of Child Health and Development, Tokyo 157-8535, Japan
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