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Experimental approach to understand the mechanism mediating epigenome formation in the primate brain by the evolutionary acquisition of non-coding RNAs

Research Project

Project/Area Number 19H03138
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 42030:Animal life science-related
Research InstitutionHiroshima University (2020-2021)
Kyushu University (2019)

Principal Investigator

IMAMURA TAKUYA  広島大学, 統合生命科学研究科(理), 教授 (90390682)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2021: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2019: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
KeywordsノンコーディングRNA / エピゲノム / 霊長類 / 脳 / 動物種差 / ノンコーディングRMA / オルガノイド
Outline of Research at the Start

脳の形態学的・機能的な違いは遺伝的に98%の相同性を示すヒト・サルでも明らかであり、実験動物として汎用されるマウスも、殆どの遺伝子セットを共通に利用していながら、独特な神経系を獲得している。一方、タンパクになれないノンコーディングRNAセットは種間多様度が極めて高い。本課題では、ノンコーディングRNAを高度に利用し、それにより、霊長類大脳皮質の遺伝子発現制御をげっ歯類細胞に再現することで、マウスのようなモデル実験動物種を異なる動物種の形質理解のために利用できるようにリソース化を目指す。

Outline of Final Research Achievements

In this study, we focused on the regulatory mechanisms that differentiate the gene expression patterns in primate and rodents, that possibly lead to the differential morphology and functions of organs depending on species through epigenetic mechanisms. Utilizing the neural stem cells, we identified a fraction of species specific promoter-associated non-coding RNAs (pancRNA) that can specifically upregulate the partner genes. Among them, most of the human-specific pancRNAs were related to the cell cycle progression, and the mimicking the human type expression in the fetal mouse neural stem cells by in utero electroporation frequently showed the enlargement of the neocortex.

Academic Significance and Societal Importance of the Research Achievements

従来、種を超えて高い相同性を示す分子の振る舞いを指標に、多細胞系の形成と機能化のロジックを解く研究が進められてきた。しかし、獣医学・畜産学領域ではさまざまな動物を取り扱うため、個体や臓器の高度な活用や疾病治療に向けては、種にしたがったロジックの違いをよく理解するための動物生命科学を発展させる必要がある。本研究により、種に固有の臓器形成メカニズムを司るネットワークモジュール群が明らかになりつつあり、今後は動物組織を適応・進化させる原動力を紐解くことで、疾病ゲノムから明らかにする従来型データ解析とは全く異なる礎とし、また、新しい実験動物提供等の応用基盤創出に繋げることが期待できる。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (39 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (3 results) Journal Article (9 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 9 results,  Open Access: 7 results) Presentation (23 results) (of which Int'l Joint Research: 6 results) Book (2 results) Remarks (2 results)

  • [Int'l Joint Research] Catholic University of Korea(韓国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Catholic University of Korea(韓国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Catholic University of Korea(韓国)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Generation of ovarian follicles from mouse pluripotent stem cells2021

    • Author(s)
      Yoshino Takashi、Suzuki Takahiro、Nagamatsu Go、Yabukami Haruka、Ikegaya Mika、Kishima Mami、Kita Haruka、Imamura Takuya、Nakashima Kinichi、Nishinakamura Ryuichi、Tachibana Makoto、Inoue Miki、Shima Yuichi、Morohashi Ken-ichirou、Hayashi Katsuhiko
    • Journal Title

      Science

      Volume: 373 Issue: 6552 Pages: 282-289

    • DOI

      10.1126/science.abe0237

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The evolutionary acquisition and mode of functions of promoter-associated non-coding RNAs (pancRNAs) for mammalian development2021

    • Author(s)
      Boyang An、Tomonori Kameda、Takuya Imamura
    • Journal Title

      Essays in Biochemistry

      Volume: 65 Issue: 4 Pages: 697-708

    • DOI

      10.1042/ebc20200143

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Neuronal activation modulates enhancer activity of genes for excitatory synaptogenesis through <i>de novo</i> DNA methylation2021

    • Author(s)
      Tomonori Kameda、Hideyuki Nakashima、Takumi Takizawa、Fumihito Miura、Takashi Ito、Kinichi Nakashima、Takuya Imamura
    • Journal Title

      Journal of Reproduction and Development

      Volume: 67 Issue: 6 Pages: 369-379

    • DOI

      10.1262/jrd.2021-106

    • NAID

      130008128883

    • ISSN
      0916-8818, 1348-4400
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Neural stem/precursor cells dynamically change their epigenetic landscape to differentially respond to BMP signaling for fate switching during brain development2021

    • Author(s)
      Sayako Katada、Jun Takouda、Takumi Nakagawa、Mizuki Honda、Katsuhide Igarashi、Takuya Imamura、Yasuyuki Ohkawa、Shoko Sato、Hitoshi Kurumizaka、Kinichi Nakashima
    • Journal Title

      Genes and Development

      Volume: 35 Issue: 21-22 Pages: 1431-1444

    • DOI

      10.1101/gad.348797.121

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] SoxE group transcription factor Sox8 promotes astrocytic differentiation of neural stem/precursor cells downstream of Nfia2021

    • Author(s)
      Takouda J, Katada S, Imamura T, Sanosaka T, Nakashima K
    • Journal Title

      Pharmacol Res Perspect

      Volume: in press

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] MeCP2 controls neural stem cell fate specification through miR-199a-mediated inhibition of BMP-Smad signaling2021

    • Author(s)
      Nakashima H, Tsujimura K, Irie K, Imamura T, Trujillo CA, Ishizu M, Uesaka K, Pan M, Noguchi H, Andoh-Noda T, Okano H, Muotri AR, Nakashima K
    • Journal Title

      Cell Rep

      Volume: in press

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Conditional Kisspeptin Neuron-Specific Kiss1 Knockout With Newly Generated Kiss1-floxed and Kiss1-Cre Mice Replicates a Hypogonadal Phenotype of Global Kiss1 Knockout Mice2020

    • Author(s)
      Kana Ikegami, Teppei Goto, Sho Nakamura, Youki Watanabe, Arisa Sugimoto, Sutisa Majarune, Kei Horihata, Mayuko Nagae, Junko Tomikawa, Takuya Imamura, Makoto Sanbo, Masumi Hirabayashi, Naoko Inoue, Kei-Ichiro Maeda, Hiroko Tsukamura, Yoshihisa Uenoyama
    • Journal Title

      J Reprod Dev.

      Volume: in press Issue: 4 Pages: 359-367

    • DOI

      10.1262/jrd.2020-026

    • NAID

      130007888736

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Inducible Kiss1 knockdown in the hypothalamic arcuate nucleus suppressed pulsatile secretion of luteinizing hormone in male mice2020

    • Author(s)
      Shiori Minabe, Sho Nakamura, Eri Fukushima, Marimo Sato, Kana Ikegami, Teppei Goto, Makoto Sanbo, Masumi Hirabayashi, Junko Tomikawa, Takuya Imamura, Naoko Inoue, Yoshihisa Uenoyama, Hiroko Tsukamura, Kei-Ichiro Maeda, Fuko Matsuda
    • Journal Title

      Journal of Reproduction and Development

      Volume: Epub Issue: 4 Pages: 369-375

    • DOI

      10.1262/jrd.2019-164

    • NAID

      130007888724

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Modeling of early neural development in vitro by direct neurosphere formation culture of chimpanzee induced pluripotent stem cells2020

    • Author(s)
      Ryunosuke Kitajima, Risako Nakai, Takuya Imamura, Tomonori Kameda, Daiki Kozuka, Hirohisa Hirai, Haruka Ito, Hiroo Imai, Masanori Imamura
    • Journal Title

      Stem Cell Research

      Volume: 44 Pages: 101749-101749

    • DOI

      10.1016/j.scr.2020.101749

    • NAID

      120006813300

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 霊長類特異的プロモーターノンコーディングRNA(pancRNA)の獲得による神経幹細胞機能の変遷2022

    • Author(s)
      今村拓也
    • Organizer
      第21回日本再生医療学会総会シンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] 動物種特異的プロモーターノンコーディングRNA(pancRNA)による神経幹細胞動態制御2022

    • Author(s)
      今村拓也
    • Organizer
      第15回神経発生討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] The human-specific pancCD63-CD63 pair can be involved in developing brain individuality by promoting basal progenitor proliferation2021

    • Author(s)
      Boyang An, Tomonori Kameda, Takuya Imamura
    • Organizer
      The 80th Fujiwara Seminar "Molecular and cellular mechanisms of brain systems generating individuality"
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Species difference in structure and function of a gene for epigenome modification, BMI1/Bmi1, in human/mouse neural stem cells2021

    • Author(s)
      Arisa Makimura, Boyang An, Akari Ando, Mayuri Tokunaga, Fumihiro Morishita,Tomonori Kameda, Takuya Imamura
    • Organizer
      The 80th Fujiwara Seminar "Molecular and cellular mechanisms of brain systems generating individuality"
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Potentials of UCP2/Ucp2 for developing brain individuality through metabolic reprogramming of neural stem cells2021

    • Author(s)
      Akari Ando, Boyang An, Mayuri Tokunaga, Arisa Makimura, Fumihiro Morishita, Tomonori Kameda, Takuya Imamura
    • Organizer
      The 80th Fujiwara Seminar "Molecular and cellular mechanisms of brain systems generating individuality"
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Discovery of a species-specific long non-coding RNA for differentiating expression of human NRSN2 and mouse Nrsn2 in neural stem cells2021

    • Author(s)
      Mayuri Tokunaga , Boyang An , Akari Ando , Arisa Makimura , Fumihiro Morishita , Tomonori Kameda , Takuya Imamura
    • Organizer
      The 80th Fujiwara Seminar "Molecular and cellular mechanisms of brain systems generating individuality"
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ヒト・マウス神経幹細胞におけるエピゲノム修飾因子Bmi1遺伝子の構造的・機能的種差の同定2021

    • Author(s)
      槇村有紗,安博洋,安東明莉,德永真結莉,森下文浩,亀田朋典,今村拓也
    • Organizer
      第114回日本繁殖生物学会大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ヒトNRSN2は種特異的ノンコーディングRNAによる転写活性化を介して神経幹細胞増殖制御に機能しうる2021

    • Author(s)
      徳永真結莉,安博洋,安東明莉,槇村有紗,森下文浩,亀田朋典,今村拓也
    • Organizer
      第114回日本繁殖生物学会大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] pancUCP2-UCP2ペアはヒト特異的神経幹細胞代謝リプログラミングに関与しうる2021

    • Author(s)
      安東明莉,Boyang An,徳永真結莉,槇村有紗,森下文浩,亀田朋典,今村拓也
    • Organizer
      第114回日本繁殖生物学会大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] The human-specific pancCD63-CD63 pair can promote basal progenitor proliferation for expansion of the cerebral cortex2021

    • Author(s)
      Boyang An, Tomonori Kameda, Takuya Imamura
    • Organizer
      第114回日本繁殖生物学会大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 神経活性化は新規DNAメチル化を介して興奮性シナプス形成に関わる遺伝子のエンハンサー活性を制御する2021

    • Author(s)
      今村拓也
    • Organizer
      第14回神経発生討論会、Web開催
    • Related Report
      2020 Annual Research Report
  • [Presentation] 神経活性化による新規DNAメチル化を介した遺伝子エンハンサー活性制御は興奮性シナプス形成に寄与する2021

    • Author(s)
      亀田朋典、中嶋秀行、滝沢琢己、三浦史仁、伊藤隆司、中島欽一、今村拓也
    • Organizer
      第14回エピジェネティクス研究会年会、Web開催
    • Related Report
      2020 Annual Research Report
  • [Presentation] 母体由来炎症シグナルを胎仔脳由来ノンコーディングRNA制御により緩和する2020

    • Author(s)
      今村拓也、藤本雄一、亀田朋典、吉良潤一、中島欽一
    • Organizer
      第43回日本神経科学大会、Web開催(シンポジウム)
    • Related Report
      2020 Annual Research Report
  • [Presentation] ニューロンは神経活性化により新規DNAメチル化を介してエンハンサー活性を調節し、興奮性シナプス形成に影響する2019

    • Author(s)
      亀田朋典、今村拓也、滝沢琢己、三浦史仁、伊藤隆司、中島欽一
    • Organizer
      第42回日本分子生物学会年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 母体由来の炎症シグナルは胎仔脳が発現するサイトカインIL17Dにより緩和できる2019

    • Author(s)
      藤本雄一、亀田朋典、吉良潤一、中島欽一、今村拓也
    • Organizer
      第42回日本分子生物学会年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 母体由来の炎症シグナルは胎仔脳が発現するサイトカインIL17Dにより緩和できる2019

    • Author(s)
      藤本雄一、亀田朋典、吉良潤一、中島欽一、今村拓也
    • Organizer
      第162回日本獣医学会学術集会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 母体由来の炎症シグナルは胎仔脳が発現するサイトカインIL17Dにより緩和できる2019

    • Author(s)
      藤本雄一、亀田朋典、吉良潤一、中島欽一、今村拓也
    • Organizer
      第112回日本繁殖生物学会大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Mecp2ノックアウトマウス新生仔海馬のシングルセルRNA-seq解析2019

    • Author(s)
      今村拓也、中嶋秀行、中島欽一
    • Organizer
      第13回エピジェネティクス研究会年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Neuronal activation can modulate enhancer activity through de novo DNA methylation2019

    • Author(s)
      Tomonori Kameda, Takuya Imamura, Takumi Takizawa, Fumihito Miura, Takashi Ito, Kinichi Nakashima
    • Organizer
      ISSCR/KSSCR International Symposium(韓国)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Neuronal activation can modulate enhancer activity through de novo DNA methylation2019

    • Author(s)
      Tomonori Kameda, Takuya Imamura, Takumi Takizawa, Fumihito Miura, Takashi Ito, Kinichi Nakashima
    • Organizer
      The 10th IBRO World Congress of Neuroscience(韓国)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Rett症候群原因因子MeCP2はmiR-199a介して神経幹細胞の分化運命決定を制御する2019

    • Author(s)
      中嶋秀行、辻村啓太、入江浩一郎、今村拓也、石津正崇、Pan Miao、中島欽一
    • Organizer
      第42回日本分子生物学会年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 転写因子SOX8はNFIAと協調的に胎生期神経幹細胞のアストロサイト分化を促進する2019

    • Author(s)
      竹生田淳、堅田明子、今村拓也、中島欽一
    • Organizer
      第42回日本分子生物学会年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 胎生期神経幹細胞のアストロサイト分化能獲得における転写制御共役因子Trim28の機能解析2019

    • Author(s)
      中川拓海、今村拓也、堅田明子、中島欽一
    • Organizer
      第42回日本分子生物学会年会
    • Related Report
      2019 Annual Research Report
  • [Book] Roles of epigenetics in the neural stem cell and neuron: in Epigenetics in Psychiatry (ed: Jacob Peedicayil, Dennis R. Grayson and Dimitrios Avramopoulos)2021

    • Author(s)
      Naoki Yamamoto, Masahiro Uesaka, Takuya Imamura, Kinichi Nakashima
    • Total Pages
      816
    • Publisher
      Academic Press
    • ISBN
      9780128235775
    • Related Report
      2021 Annual Research Report
  • [Book] 次世代シークエンサーDRY解析教本 改訂第2版(清水厚志・坊農秀雅 編集)2019

    • Author(s)
      佐野坂司・今村拓也(分担執筆)
    • Total Pages
      384
    • Publisher
      学研メディカル秀潤社
    • ISBN
      9784780909838
    • Related Report
      2019 Annual Research Report
  • [Remarks] 研究代表者の主宰する研究室のホームページ

    • URL

      https://sites.google.com/view/imamuralabhiroshima

    • Related Report
      2021 Annual Research Report
  • [Remarks] iPS細胞を使ってチンパンジーの初期神経発生を誘導 -ヒト脳進化の解明に向けたiPS細胞研究に道-

    • URL

      http://www.kyoto-u.ac.jp/ja/research/research_results/2019/200228_2.html

    • Related Report
      2019 Annual Research Report

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Published: 2019-04-18   Modified: 2023-01-30  

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