Updated on 2025/06/10

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写真a

 
Tohru Sugawara
 
Organization
Graduate School of Medical Life Science Department of Medical Life Science Associate Professor
School of Science Department of Science
Title
Associate Professor
Profile

略 歴
1.学歴
1997年03月 茨城県立水戸第一高等学校 卒業
1997年04月 国立東京工業大学 生命理工学部 入学
2001年03月 国立東京工業大学 生命理工学部 卒業
2001年04月 国立東京工業大学大学院 生命理工学研究科生体システム専攻修士課程 入学
2003年03月 国立東京工業大学大学院 生命理工学研究科生体システム専攻修士課程 修了
2003年04月 国立東京工業大学大学院 生命理工学研究科生体システム専攻博士課程 入学
2006年03月 国立東京工業大学大学院 生命理工学研究科生体システム専攻博士課程 修了(学位取得、理学博士)

2.職歴
2006年 04月 株式会社キアゲン
2007年 07月 国立東京工業大学大学院生命理工学研究科 研究員
2008年 04月 国立京都大学 霊長類研究所 研究員
2010年 05月 独立行政法人国立成育医療研究センター研究所 研究員
2014年 05月 Eli and Edythe Broad Center for Stem Cell and Regenerative Medicine at USC、Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Postdoctoral fellow
2017年 04月 国立研究開発法人国立成育医療研究センター研究所 研究員
2018年 05月 国立研究開発法人国立成育医療研究センター研究所 上級研究員

 

External link

Degree

  • Ph.D ( 2006.3   Tokyo Institute of Technology )

Research Areas

  • Life Science / Molecular biology

Education

  • Tokyo Institute of Technology

    1997.4 - 2001.3

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Research History

  • Yokohama City University   Graduate School of Medical Life Science   Associate Professor

    2022.4

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    Country:Japan

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  • National Center for Child Health and Development   Center for regenerative medicine   Researcher

    2017.4 - 2022.3

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  • Tokyo Institute of Technology

    2004.4 - 2006.3

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Papers

  • Single-Cell RNA-Seq Reveals <i>LRRC75A</i>-Expressing Cell Population Involved in VEGF Secretion of Multipotent Mesenchymal Stromal/Stem Cells Under Ischemia

    Takumi Miura, Tsukasa Kouno, Megumi Takano, Takuya Kuroda, Yumiko Yamamoto, Shinji Kusakawa, Masaki Suimye Morioka, Tohru Sugawara, Takamasa Hirai, Satoshi Yasuda, Rumi Sawada, Satoko Matsuyama, Hideya Kawaji, Takeya Kasukawa, Masayoshi Itoh, Akifumi Matsuyama, Jay W Shin, Akihiro Umezawa, Jun Kawai, Yoji Sato

    Stem Cells Translational Medicine   12 ( 6 )   379 - 390   2023.6

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    Publishing type:Research paper (scientific journal)   Publisher:Oxford University Press (OUP)  

    Abstract

    Human multipotent mesenchymal stromal/stem cells (MSCs) have been utilized in cell therapy for various diseases and their clinical applications are expected to increase in the future. However, the variation in MSC-based product quality due to the MSC heterogeneity has resulted in significant constraints in the clinical utility of MSCs. Therefore, we hypothesized that it might be important to identify and ensure/enrich suitable cell subpopulations for therapies using MSC-based products. In this study, we aimed to identify functional cell subpopulations to predict the efficacy of angiogenic therapy using bone marrow-derived MSCs (BM-MSCs). To assess its angiogenic potency, we observed various levels of vascular endothelial growth factor (VEGF) secretion among 11 donor-derived BM-MSC lines under in vitro ischemic culture conditions. Next, by clarifying the heterogeneity of BM-MSCs using single-cell RNA-sequencing analysis, we identified a functional cell subpopulation that contributed to the overall VEGF production in BM-MSC lines under ischemic conditions. We also found that leucine-rich repeat-containing 75A (LRRC75A) was more highly expressed in this cell subpopulation than in the others. Importantly, knockdown of LRRC75A using small interfering RNA resulted in significant inhibition of VEGF secretion in ischemic BM-MSCs, indicating that LRRC75A regulates VEGF secretion under ischemic conditions. Therefore, LRRC75A may be a useful biomarker to identify cell subpopulations that contribute to the angiogenic effects of BM-MSCs. Our work provides evidence that a strategy based on single-cell transcriptome profiles is effective for identifying functional cell subpopulations in heterogeneous MSC-based products.

    DOI: 10.1093/stcltm/szad029

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  • A single allele of the hsa-miR-302/367 cluster maintains human pluripotent stem cells Reviewed

    Tohru Sugawara, Yuki Kawamoto, Tomoyuki Kawasaki, Akihiro Umezawa, Hidenori Akutsu

    Regenerative Therapy   21   37 - 45   2022.5

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  • Using piggyBac transposon gene expression vectors to transfect Zscan5b gene into mouse pluripotent stem cells Invited Reviewed

    Mitsutoshi Yamada, Tohru Sugawara, Shinju Usami, Rina Nakanishi, Hidenori Akustu

    STAR Protoc .   2 ( 3 )   100811   2021.9

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  • The hsa-miR-302 cluster controls ectodermal differentiation of human pluripotent stem cell via repression of DAZAP2. International journal

    Tohru Sugawara, Takumi Miura, Tomoyuki Kawasaki, Akihiro Umezawa, Hidenori Akutsu

    Regenerative therapy   15   1 - 9   2020.12

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    Introduction: Recent studies have revealed that microRNAs (miRNAs, miRs) are important for self-renewal, differentiation, and cellular reprogramming of somatic cells into induced pluripotent stem cells (iPSC); however, their functional roles and target genes that are regulated by human PSC-specific miRs including hsa-miR-302 clusters remain largely unknown. Analysis of their target gene will give us the opportunity to understand the functional roles of such miRs. Methods: We analyzed the expression profiles of miRs in 4 somatic cell lines, 8 human iPSC lines derived from 4 different cell types, 3 human ESC lines, and embryoid bodies differentiated from the human ESCs to identify human PSC-specific miRs. We also analyzed the simultaneous expression profiles of miRs and mRNAs to identify candidate targets of human PSC-specific miRs. Then, we constructed a vector for overexpressing one of the target gene to dissect the functions of human PSC-specific miR in maintenance of self-renew and differentiation. Results: We focused on hsa-miR-302 cluster as a human PSC-specific miR and identified 22 candidate targets of hsa-miR-302 cluster that were moderately expressed in undifferentiated human PSCs and up-regulated in differentiated cells. Deleted in azoospermia-associated protein 2 (DAZAP2), one such target, was directly repressed by hsa-miR-302a, -302b, -302c and -302d, but not by hsa-miR-367. Overexpression of DAZAP2 caused a decrease in cell proliferation of undifferentiated human iPSCs, although morphology and undifferentiated marker gene expression was not affected. In addition, neural differentiation was suppressed in DAZAP2-overexpressing human iPSCs. Conclusion: Our study revealed that hsa-miR-302 cluster controls the cell proliferation of human PSCs and the neural differentiation of human PSCs by repression of DAZAP2, thereby highlighting an additional function of human PSC-specific miRs in maintaining pluripotency.

    DOI: 10.1016/j.reth.2020.03.011

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  • Identification and therapeutic rescue of autophagosome and glutamate receptor defects in C9ORF72 and sporadic ALS neurons. Reviewed

    Shi Y, Hung ST, Rocha G, Lin S, Linares GR, Staats KA, Seah C, Wang Y, Chickering M, Lai J, Sugawara T, Sagare AP, Zlokovic BV, Ichida JK

    JCI insight   5   2019.7

  • Zscan5b Deficiency Impairs DNA Damage Response and Causes Chromosomal Aberrations during Mitosis. Reviewed International journal

    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

    Stem cell reports   12 ( 6 )   1366 - 1379   2019.6

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    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.

    DOI: 10.1016/j.stemcr.2019.05.002

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  • Epigenetic-scale comparison of human iPSCs generated by retrovirus, Sendai virus or episomal vectors. Reviewed International journal

    Koichiro Nishino, Yoshikazu Arai, Ken Takasawa, Masashi Toyoda, Mayu Yamazaki-Inoue, Tohru Sugawara, Hidenori Akutsu, Ken Nishimura, Manami Ohtaka, Mahito Nakanishi, Akihiro Umezawa

    Regenerative therapy   9   71 - 78   2018.12

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    Human induced pluripotent stem cells (iPSCs) are established by introducing several reprogramming factors, such as OCT3/4, SOX2, KLF4, c-MYC. Because of their pluripotency and immortality, iPSCs are considered to be a powerful tool for regenerative medicine. To date, iPSCs have been established all over the world by various gene delivery methods. All methods induced high-quality iPSCs, but epigenetic analysis of abnormalities derived from differences in the gene delivery methods has not yet been performed. Here, we generated genetically matched human iPSCs from menstrual blood cells by using three kinds of vectors, i.e., retrovirus, Sendai virus, and episomal vectors, and compared genome-wide DNA methylation profiles among them. Although comparison of aberrant methylation revealed that iPSCs generated by Sendai virus vector have lowest number of aberrant methylation sites among the three vectors, the iPSCs generated by non-integrating methods did not show vector-specific aberrant methylation. However, the differences between the iPSC lines were determined to be the number of random aberrant hypermethylated regions compared with embryonic stem cells. These random aberrant hypermethylations might be a cause of the differences in the properties of each of the iPSC lines.

    DOI: 10.1016/j.reth.2018.08.002

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  • Haploinsufficiency leads to neurodegeneration in C9ORF72 ALS/FTD human induced motor neurons. Reviewed

    Shi Y, Lin S, Staats KA, Li Y, Chang WH, Hung ST, Hendricks E, Linares GR, Wang Y, Son EY, Wen X, Kisler K, Wilkinson B, Menendez L, Sugawara T, Woolwine P, Huang M, Cowan MJ, Ge B, Koutsodendris N, Sandor KP, Komberg J, Vangoor VR, Senthilkumar K, Hennes V, Seah C, Nelson AR, Cheng TY, Lee SJ, August PR, Chen JA, Wisniewski N, Hanson-Smith V, Belgard TG, Zhang A, Coba M, Grunseich C, Ward ME, van den Berg LH, Pasterkamp RJ, Trotti D, Zlokovic BV, Ichida JK

    Nature medicine   24 ( 3 )   313 - 325   2018.3

  • Organoids recapitulate organs? Reviewed International journal

    Tohru Sugawara, Kengo Sasaki, Hidenori Akutsu

    Stem cell investigation   5   3 - 3   2018

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  • Generation of primitive neural stem cells from human fibroblasts using a defined set of factors Reviewed

    Takumi Miura, Tohru Sugawara, Atsushi Fukuda, Ryo Tamoto, Tomoyuki Kawasaki, Akihiro Umezawa, Hidenori Akutsu

    BIOLOGY OPEN   4 ( 11 )   1595 - 1607   2015.11

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    DOI: 10.1242/bio.013151

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  • Central role for PICALM in amyloid-beta blood-brain barrier transcytosis and clearance Reviewed

    Zhen Zhao, Abhay P. Sagare, Qingyi Ma, Matthew R. Halliday, Pan Kong, Kassandra Kisler, Ethan A. Winkler, Anita Ramanathan, Takahisa Kanekiyo, Guojun Bu, Nelly Chuqui Owens, Sanket V. Rege, Gabriel Si, Ashim Ahuja, Donghui Zhu, Carol A. Miller, Julie A. Schneider, Manami Maeda, Takahiro Maeda, Tohru Sugawara, Justin K. Ichida, Berislav V. Zlokovic

    NATURE NEUROSCIENCE   18 ( 7 )   978 - +   2015.7

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    DOI: 10.1038/nn.4025

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  • Xenogeneic-free defined conditions for derivation and expansion of human embryonic stem cells with mesenchymal stem cells Reviewed

    Hidenori Akutsu, Masakazu Machida, Seiichi Kanzaki, Tohru Sugawara, Takashi Ohkura, Naoko Nakamura, Mayu Yamazaki-Inoue, Takumi Miura, Mohan C. Vemuri, Mahendra S. Rao, Kenji Miyado, Akihiro Umezawa

    Regenerative Therapy   1   18 - 29   2015.6

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Japanese Society of Regenerative Medicine  

    DOI: 10.1016/j.reth.2014.12.004

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  • beta-Catenin Functions Pleiotropically in Differentiation and Tumorigenesis in Mouse Embryo-Derived Stem Cells Reviewed

    Noriko Okumura, Hidenori Akutsu, Tohru Sugawara, Takumi Miura, Youki Takezawa, Akihiro Hosoda, Keiichi Yoshida, Justin K. Ichida, Mitsutoshi Yamada, Toshio Hamatani, Naoaki Kuji, Kenji Miyado, Yasunori Yoshimura, Akihiro Umezawa

    PLOS ONE   8 ( 5 )   e63265   2013.5

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    DOI: 10.1371/journal.pone.0063265

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  • Correlation between Nuptial Colors and Visual Sensitivities Tuned by Opsins Leads to Species Richness in Sympatric Lake Victoria Cichlid Fishes Reviewed

    Ryutaro Miyagi, Yohey Terai, Mitsuto Aibara, Tohru Sugawara, Hiroo Imai, Hidenori Tachida, Semvua Isa Mzighani, Takashi Okitsu, Akimori Wada, Norihiro Okada

    MOLECULAR BIOLOGY AND EVOLUTION   29 ( 11 )   3281 - 3296   2012.11

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    DOI: 10.1093/molbev/mss139

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  • Eco-Geographical Diversification of Bitter Taste Receptor Genes (TAS2Rs) among Subspecies of Chimpanzees (Pan troglodytes) Reviewed

    Takashi Hayakawa, Tohru Sugawara, Yasuhiro Go, Toshifumi Udono, Hirohisa Hirai, Hiroo Imai

    PLOS ONE   7 ( 8 )   e43277   2012.8

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    DOI: 10.1371/journal.pone.0043277

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  • Investigating cellular identity and manipulating cell fate using induced pluripotent stem cells Reviewed

    Tohru Sugawara, Koichiro Nishino, Akihiro Umezawa, Hidenori Akutsu

    STEM CELL RESEARCH & THERAPY   3 ( 2 )   8   2012.3

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  • Reverse Evolution in RH1 for Adaptation of Cichlids to Water Depth in Lake Tanganyika Reviewed

    Haruka Nagai, Yohey Terai, Tohru Sugawara, Hiroo Imai, Hidenori Nishihara, Michio Hori, Norihiro Okada

    MOLECULAR BIOLOGY AND EVOLUTION   28 ( 6 )   1769 - 1776   2011.6

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    DOI: 10.1093/molbev/msq344

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  • Diversification of Bitter Taste Receptor Gene Family in Western Chimpanzees Reviewed

    Tohru Sugawara, Yasuhiro Go, Toshifumi Udono, Naruki Morimura, Masaki Tomonaga, Hirohisa Hirai, Hiroo Imai

    MOLECULAR BIOLOGY AND EVOLUTION   28 ( 2 )   921 - 931   2011.2

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    DOI: 10.1093/molbev/msq279

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  • Identification of non-taster Japanese macaques for a specific bitter taste Reviewed

    Nami Suzuki, Tohru Sugawara, Atsushi Matsui, Yasuhiro Go, Hirohisa Hirai, Hiroo Imai

    PRIMATES   51 ( 4 )   285 - 289   2010.10

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    DOI: 10.1007/s10329-010-0209-3

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  • Vertebrate Rhodopsin Adaptation to Dim Light via Rapid Meta-II Intermediate Formation Reviewed

    Tohru Sugawara, Hiroo Imai, Masato Nikaido, Yasushi Imamoto, Norihiro Okada

    MOLECULAR BIOLOGY AND EVOLUTION   27 ( 3 )   506 - 519   2010.3

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    DOI: 10.1093/molbev/msp252

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  • Polymorphisms in the GPCRs of primates and the genetic database on the individual primates in the Primate Research Institute Reviewed

    Imai Hiroo, Sugawara Tohru, Go Yasuhiro, Matsui Atsushi, Nishimura Osamu, Inoue Eiji, Murayama Miho, Hirai Hirohisa, Agata Kiyokazu, Matsuzawa Tetsuro

    NEUROSCIENCE RESEARCH   65   S176   2009

  • Divergent selection on opsins drives incipient speciation in Lake Victoria cichlids Reviewed

    Yohey Terai, Ole Seehausen, Takeshi Sasaki, Kazuhiko Takahashi, Shinji Mizoiri, Tohru Sugawara, Tetsu Sato, Masakatsu Watanabe, Nellie Konijnendijk, Hillary D. J. Mrosso, Hidenori Tachida, Hiroo Imai, Yoshinori Shichida, Norihiro Okada

    PLoS Biology   4 ( 12 )   2244 - 2251   2006.12

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    DOI: 10.1371/journal.pbio.0040433

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  • Parallelism of amino acid changes at the RH1 affecting spectral sensitivity among deep-water cichlids from Lakes Tanganyika and Malawi Reviewed

    T Sugawara, Y Terai, H Imai, GF Turner, S Koblmuller, C Sturmbauer, Y Shichida, N Okada

    PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA   102 ( 15 )   5448 - 5453   2005.4

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    DOI: 10.1073/pnas.0405302102

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  • Natural selection of the rhodopsin gene during the adaptive radiation of East African Great Lakes Cichlid fishes Reviewed

    T Sugawara, Y Terai, N Okada

    MOLECULAR BIOLOGY AND EVOLUTION   19 ( 10 )   1807 - 1811   2002.10

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MISC

  • Evolution of the Bitter Taste Receptor Gene Reprtoire in Primates. Reviewed

    Takashi Hayakawa, Nami Suzuki-Hashido, Atsushi Matsui, Tohru Sugawara, Toshifumi Udono, Hirohisa Hirai, Yasuhiro Go, Hiroo Imai

    The XXVth Congress of the International Primatological Society   2014

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  • The pleiotropic function of β-catenin in differentiation of the mouse embryo-derived stem cells

    OKUMURA Noriko, AKUTSU Hidenori, SUGAWARA Tohru, MIURA Takumi, TAKEZAWA Yuuki, HOSODA Akihiro, YOSHIDA Keiichi, ICHIDA Justin K., YAMADA Mitsutoshi, HAMATANI Toshio, MIYADO Kenji, KUJI Naoaki, UMEZAWA Akihiro, YOSHIMURA Yasunori

    30 ( 2 )   S93   2013.4

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    CiNii Books

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  • Commonality of speciation by sensory drive revealed by its signatures in Lake Victoria cichlid fishes

    Yohey Terai, Ryutaro Miyagi, Shinji Mizoiri, Semvua Mzighani, Mitsuto Aibara, Takashi Okitsu, Akimori Wada, Tohru Sugawara, Hiroo Imai, Norihiro Okada

    GENES & GENETIC SYSTEMS   87 ( 6 )   375 - 375   2012.12

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  • Geography and evolution of bitter taste receptor genes in chimpanzees Reviewed

    Hayakawa T, Sugawara T, Go Y, Udono T, Hirai H, Imai H

    第 10 回国際シンポジウム「味覚嗅覚の分子神経機構」(2012/11/02-03, Fukuoka).   2012

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  • Eco-Geographical Differences of the Sense of Bitter Taste in Chimpanzees Reviewed

    Hayakawa T, Sugawara T, Go Y, Udono T, Hirai H, Imai H

    The 1st International Seminar on Biodiversity and Evolution (2012/09/26, Kyoto).   2012

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  • チンパンジーの味覚に地域差はあるか? ~分子遺伝学からの考察~ Reviewed

    早川卓志, 菅原亨, 郷康広, 鵜殿俊史, 平井啓久, 今井啓雄

    SAGA14 (2011/11/12, 熊本)   2011.11

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  • Differences in bitter taste receptors and behaviours in species and sub-species of primates: Identification of non-taster Japanese macaques for a specific bitter taste

    Nami Suzuki, Tohru Sugawara, Atsushi Matsui, Yasuhiro Go, Hirohisa Hirai, Hiroo Imai

    CHEMICAL SENSES   36 ( 1 )   E24 - E24   2011.1

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  • チンパンジー3亜種における苦味受容体遺伝子ファミリーの分子進化 Reviewed

    早川卓志, 菅原亨, 郷康広, 鵜殿俊史, 平井啓久, 今井啓雄

    第27回日本霊長類学会大会 (2011/07/17, 犬山)   27 ( Supplement )   2011

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  • 霊長類における味覚受容体の進化

    郷康広, 松井淳, 菅原亨, 鈴木南美, 早川卓志, 森村成樹, 森村成樹, 鵜殿俊史, 友永雅己, 友永雅己, 平井啓久, 今井啓雄, 今井啓雄

    日本遺伝学会大会プログラム・予稿集   82nd   75   2010.9

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  • 苦味受容体の多様性探索 Reviewed

    菅原亨, 郷康広, 鵜殿俊史, 森村成樹, 友永雅己, 平井啓久, 今井啓雄

    分子研研究会 「拡がるロドプシンの仲間から"何がわかるか""何をもたらすか"」 (2010/03, 岡崎)   2010.3

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  • Region-specific distribution of non-taster Japanese macaques Reviewed

    N. Suzuki, T. Sugawara, A. Matsui, Y. Go, H. Hirai, H. Imai

    International Primatological Society XXIII Congress Kyoto 2010. 2010年9月,京都.   2010

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  • Polymorphism in Bitter Taste Receptors of Primates Reviewed

    Imai H, Suzuki N, Sugawara T, Matsui A, Go Y, Hirai H

    Association for Chemoreception Sciences 2010 annual meeting (2010/04/22, St. Petersberg, USA).   2010

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  • チンパンジー亜種集団間における苦味受容体遺伝子配列の比較解 Reviewed

    早川卓志, 菅原亨, 郷康広, 鵜殿俊史, 平井啓久, 今井啓雄

    2010年8月2-5日,日本進化学会大会,東京   12th   2010

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  • 苦味受容体遺伝子の多型解析による味覚変異ニホンザルの発見 Reviewed

    鈴木南美, 菅原亨, 松井淳, 郷康広, 平井啓久, 今井啓雄

    2010年9月8-10日,日本味と匂い学会大会,北九州   2010

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  • Evolutionary dynamics of bitter taste receptor gene repertoires in primates. Reviewed

    Go Y, Sugawara T, Suzuki N, Hayakawa T, Matsui A, Hirai H, Imai H

    (2010)European Chemoreception Research Organization XXth CONGRESS (2010/09, Avignon, France).   2010

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  • Intrasubspecific polymorphisma and intersubspecific divergenece of bitter taste recepter genes in chimpanzees. Reviewed

    T. Hayakawa, T. Sugawara, Y. Go, T. Udono, H. Hirai, H. Imai

    International Primatological Society XXIII Congress Kyoto 2010.2010年9月,京都.   2010

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  • 霊長類苦味受容体の遺伝子・分子・行動解析 Reviewed

    今井啓雄, 菅原亨, 鈴木南美, 早川卓志, 松井 淳, 郷 康広, 平井啓久

    京阪奈生物学セミナー,2010年5月17日,京都   2010

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  • 遺伝子情報分野(III.研究活動)

    平井 啓久, 今井 啓雄, 中村 伸, 平井 百合子, 光永 総子, 松井 淳, 菅原 亨, 上岩 美幸, 永友 寛一郎, 細川 和也, 渡邊 正孝, 田中 美希子

    霊長類研究所年報   39   66 - 69   2009.9

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    Language:Japanese   Publisher:京都大学霊長類研究所  

    CiNii Books

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  • 霊長類苦味受容体の遺伝子多型解析

    IMAI HIROO, SUZUKI NAMI, SUGAWARA TOORU, MATSUI ATSUSHI, GO YASUHIRO, HIRAI HIROHISA

    霊長類研究   25 ( Supplement )   S.24   2009.7

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  • The diversity of visual perception in sympatric Lake Victoria cichlids

    R. Miyagi, Y. Terai, M. Aibara, S. Mizoiri, T. Sugawara, H. Imai, N. Wachi, H. Tachida, N. Okada

    INTEGRATIVE AND COMPARATIVE BIOLOGY   49   E274 - E274   2009.2

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    Language:English   Publishing type:Research paper, summary (international conference)  

    Web of Science

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  • チンパンジー苦味受容体の多型解析

    菅原亨, 郷康広, 鵜殿 俊史, 森村成樹, 友永雅己, 今井啓雄, 平井啓

    Sep-09   2009

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  • ニホンザル・アカゲザルにおける苦味受容体遺伝子T2R38の多型解析 Reviewed

    鈴木南美, 菅原亨, 松井淳, 郷康広, 平井啓久, 今井啓雄

    第25回日本霊長類学会 (2009/07, 各務原).   2009

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    DOI: 10.14907/primate.25.0.16.0

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  • チンパンジー苦味受容体の種内変異解析 Reviewed

    菅原亨, 郷康広, 鵜殿俊史, 森村成樹, 友永雅己, 今井啓雄, 平井啓久

    第25回日本霊長類学会大会 (2009/07, 各務原)   2009

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    DOI: 10.14907/primate.25.0.14.0

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  • ニホンザルにおける苦味受容体遺伝T2R38の変異と苦味受容機能との関連 Reviewed

    鈴木南美, 菅原亨, 松井淳, 郷康広, 平井啓久, 今井啓雄

    第12回 SAGA シンポジウム (2009/11, 福岡).   2009

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  • 霊長類苦味受容体の多型解析 Reviewed

    鈴木南美, 菅原亨, 松井淳, 郷康広, 平井啓久, 今井啓雄

    第47回日本生物物理学会年会 (2009/11, 徳島)   2009

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  • Polymorphisms in bitter taste receptors among chimpanzees. Reviewed

    Sugawara T, Go Y, Udono T, Morimura N, Tomonaga M, Imai H, Hirai H

    The 3rd International Symposium of the Biodiversity and Evolution Global COE Project (2009/07, Kyoto, Japan).   2009

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  • 霊長類感覚受容体の遺伝子多型解析とデータベースの構築 Reviewed

    今井啓雄, 菅原亨, 郷康広, 松井淳, 西村理, 井上英治, 村山美穂, 平井啓久, 阿形清和, 松沢哲郎

    第32回日本神経科学大会 (2009/09, 名古屋).   2009

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  • Polymorphism in the bitter taste receptor gene of Japanese and rhesus macaques. Reviewed

    Suzuki N, Sugawara T, Matsui A, Go Y, Hirai H, Imai H

    The 3rd International Symposium of the Biodiversity and Evolution Global COE project (2009/07, Kyoto).   2009

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  • チンパンジー苦味受容体の遺伝子多型解析 Reviewed

    今井啓雄, 菅原亨, 松井淳, 郷康広, 平井啓久

    第42回日本味と匂学会大会 (2008/09, 富山).   2008

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  • 霊長類G蛋白質共役型感覚受容体の遺伝子多型 Reviewed

    今井啓雄, 菅原亨, 松井淳, 郷康広, 平井啓久

    日本動物学会第79回大会 (2008/09, 福岡)   2008

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  • 霊長類感覚受容体の遺伝子多型 Reviewed

    今井啓雄, 菅原亨, 松井淳, 郷康広, 平井啓久

    第24回日本霊長類学会大会 (2008/07, 東京).   2008

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    DOI: 10.14907/primate.24.0.18.0

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Research Projects

  • 全能性獲得へのロードマップ:幹細胞のミトコンドリア・ゲノム安定性機構の解明

    Grant number:20H03827  2020.4 - 2025.3

    日本学術振興会  科学研究費助成事業  基盤研究(B)

    山田 満稔, 金蔵 孝介, 阿久津 英憲, 菅原 亨, 中村 彰宏

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    Grant amount:\17420000 ( Direct Cost: \13400000 、 Indirect Cost:\4020000 )

    人工多能性幹細胞(induced pluripotent stem cell: iPSC)は、初期胚の発生を解明、あるいは加齢に伴う変性疾患を治療するための自己細胞代替療法を開発するための無限の供給源となる。最近の研究では、高齢のドナーから作製したiPSCには、ミトコンドリアゲノム(mtDNA)の変異やゲノムの不安定性が胚性幹細胞(embryonic stem cell: ESC)に比べて蓄積されていることが明らかになっており、これがiPSC由来の自己細胞に対する拒絶反応や腫瘍化、呼吸器系の障害につながり、臨床応用の障害となっている。
    加齢による幹細胞機能の低下に関わる分子経路を解明するため、若齢(6~8週)、中年(6カ月)、高齢(12~14カ月)、超高齢(24ヶ月)のマウスから、雌由来の単為発生胚由来ESC株と、皮膚組織由来のisogenicなiPSC株を樹立した。すべての多能性幹細胞株において、免疫組織染色およびqPCR法により、未分化能性および多分化能性が一様に証明された。RNAシークエンス解析の結果、若齢マウス由来ESCと比較して加齢マウス由来のiPSCでは防御やサイトカイン反応に関わる遺伝子の発現量が増加していた。ミトコンドリア機能解析では、プライム状態の幹細胞は酸素消費量が低いのに対し、ナイーブ状態の幹細胞はミトコンドリア酸化能力が向上してた。加齢に伴うATP産生速度の変化が予測されたが、呼吸機能、プロトンリーク、結合効率には加齢に伴う有意な変化は見られなかった。グローバルな代謝状態を解析するためメタボローム解析を行ったところ、若齢であってもESCとiPSCはことなる特徴を示した。
    ここまでの研究では、多能性幹細胞における転写と代謝の加齢依存性を明らかにした。今回のデータは、より質の高いiPSCの開発につながる可能性があり、再生医療にとって望ましいものと考える。

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  • 全能性獲得へのロードマップ:幹細胞のミトコンドリア・ゲノム安定性機構の解明

    Grant number:23K20330  2020.4 - 2025.3

    日本学術振興会  科学研究費助成事業  基盤研究(B)

    山田 満稔, 金蔵 孝介, 阿久津 英憲, 中村 彰宏, 菅原 亨

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    Grant amount:\17420000 ( Direct Cost: \13400000 、 Indirect Cost:\4020000 )

    人工多能性幹細胞(induced pluripotent stem cell: iPSC)は、初期胚の発生を解明、あるいは加齢に伴う変性疾患を治療するための自己細胞代替療法を開発するための無限の供給源となる。最近の研究では、高齢のドナーから作製したiPSCには、ミトコンドリアゲノム(mtDNA)の変異やゲノムの不安定性が胚性幹細胞(embryonic stem cell: ESC)に比べて蓄積されていることが明らかになっており、これがiPSC由来の自己細胞に対する拒絶反応や腫瘍化、呼吸器系の障害につながり、臨床応用の障害となっている。
    加齢による幹細胞機能の低下に関わる分子経路を解明するため、若齢(6~8週)、中年(6カ月)、高齢(12~14カ月)、超高齢(24ヶ月)のマウスから、雌由来の単為発生胚由来ESC株と、皮膚組織由来のisogenicなiPSC株を樹立した。すべての多能性幹細胞株において、免疫組織染色およびqPCR法により、未分化能性および多分化能性が一様に証明された。RNAシークエンス解析の結果、若齢マウス由来ESCと比較して加齢マウス由来のiPSCでは防御やサイトカイン反応に関わる遺伝子の発現量が増加していた。ミトコンドリア機能解析では、プライム状態の幹細胞は酸素消費量が低いのに対し、ナイーブ状態の幹細胞はミトコンドリア酸化能力が向上してた。加齢に伴うATP産生速度の変化が予測されたが、呼吸機能、プロトンリーク、結合効率には加齢に伴う有意な変化は見られなかった。グローバルな代謝状態を解析するためメタボローム解析を行ったところ、若齢であってもESCとiPSCはことなる特徴を示した。
    ここまでの研究では、多能性幹細胞における転写と代謝の加齢依存性を明らかにした。今回のデータは、より質の高いiPSCの開発につながる可能性があり、再生医療にとって望ましいものと考える。

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  • 小児がん及びヒト多能性幹細胞に対する畳込ニューラルネットワークによる分類器の創成

    Grant number:20H03462  2020.4 - 2025.3

    日本学術振興会  科学研究費助成事業  基盤研究(B)

    梅澤 明弘, 三上 修治, 青砥 早希, 菅原 亨, 岡村 浩司

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    Grant amount:\17290000 ( Direct Cost: \13300000 、 Indirect Cost:\3990000 )

    現象・生命情報に関するビッグデータの効率的活用は、活気ある持続可能な(Active Sustainability)社会を構築していくための大きな役割を果たすことになる。内閣府ではSociety 5.0の構築として、国を挙げてAIの活用に向けた技術開発を推進している。本研究では、機械学習技術・Information Retrieval技術のバイオビッグデータへの応用として細胞評価技術を確立し、①小児がんに対する機械学習システムの実装による評価技術の開発と超早期診断技術の構築、②テラトーマの病理組織像の機械学習解析による多能性幹細胞の形質、分化指向性の同定の実現を目指す。バイオビッグデータと機械学習を基本としたIT技術の融合により小児がん診断システム及びヒト多能性幹細胞評価システム構築することは、蓄積されたビッグデータの有効利用であり、情報分野におけるグローバルスタンダードとなる可能性を有していると同時に、テラトーマへの科学的な理解に対する新たな礎となるものである。テラトーマの病理組織像に対して機械学習解析を行い、そのデータを教師として、多能性幹細胞の形質、分化指向性の同定にむけた解析を実施した。テラトーマ形成の過程や、細胞間、移植部位それぞれの相互作用を始め、テラトーマを構成する自然法則、パラメータを明らかにし、多能性幹細胞によるテラトーマがどのように創成されているかを畳み込みニューラルの構成的アプローチによって有機的なシステムとしてのアプローチを行っている。構成的システム病理学は、細胞、器官、多細胞体などを創成する仕組みや原理を解明するところに特徴がある。現在主流の要素還元的アプローチだけでは困難な、細胞や遺伝子の相互作用の解明が可能となる。

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  • Application of human pluripotent stem cell-derived neural crest cells for cell therapy in mini-gut

    Grant number:18K08666  2018.4 - 2021.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    Sugawara Tohru

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    Grant amount:\4420000 ( Direct Cost: \3400000 、 Indirect Cost:\1020000 )

    The neural crest cells (NCCs) originate at the dorsalmost region of the neural tube during the embryonic development of vertebrates. The dysfunction of NCCs is called neurocristopathy. It causes various diseases such as cardiac and intestinal dysfunction, developmental disorders, and congenital malformations as well as tumors.
    In this study, we aimed to produce human pluripotent stem cell (hPSC)-derived NCCs as materials for cell therapy against neurocristopathy. In addition, we will generate hPSC-derived three-dimensional small intestinal organoid disease modelings and evaluate the function of hPSC-derived NCs.

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  • ヒト胎盤発生の新規分子を標的とした胎盤機能不全メカニズムの解明

    Grant number:26870892  2014.4 - 2017.3

    日本学術振興会  科学研究費助成事業  若手研究(B)

    菅原 亨

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    Grant amount:\4030000 ( Direct Cost: \3100000 、 Indirect Cost:\930000 )

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  • Molecular mechanisms of adaptive evolution in primate taste receptors

    Grant number:22770233  2010 - 2011

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Young Scientists (B)

    SUGAWARA Toru

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    Grant amount:\4160000 ( Direct Cost: \3200000 、 Indirect Cost:\960000 )

    Bitter taste is mediated by T2R genes, which belong to the G protein-coupled receptors. We investigated the intraspecies variations of functional T2R genes in chimpanzees and Japanese macaques, and found that they showed high nucleotide diversity along with a large number of amino acid substitutions. These trends result in the occurrence of various divergent alleles of T2Rs within the primate populations and in heterozygous individuals who might have the ability to taste a broader range of substances. In addition, we revealed that phenotypic polymorphism of sensitivity to PTC was caused by the independent mutations of T2R38 in humans, chimpanzees and macaques.

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