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Investigation and application of bovine placental formation by intrauterine genome dynamics

Research Project

Project/Area Number 20H03133
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 42010:Animal production science-related
Research InstitutionTokyo University of Pharmacy and Life Science

Principal Investigator

KUSAMA Kazuya  東京薬科大学, 薬学部, 講師 (30579149)

Co-Investigator(Kenkyū-buntansha) 堀 正敏  東京大学, 大学院農学生命科学研究科(農学部), 教授 (70211547)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2023: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2022: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2020: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Keywords胎盤 / トロホブラスト / 着床 / 内在性レトロウイルス / ウシ / 細胞融合 / 内在性レトロウイルス因子
Outline of Research at the Start

正常なウシの胎盤形成には、受精胚および胎盤の構成細胞であるトロホブラスト細胞の融合が必須である。しかしながら、胎盤形成に必須のトロホブラスト細胞の融合機構の詳細は未だ不明である。そこで本研究は、ウシ特異的内在性レトロウイルス因子(ERVs)発現を中心に、ウシトロホブラスト細胞融合の分子メカニズム、胚着床によるゲノムの状態変化、子宮内環境の細胞融合への影響、ウシ融合トロホブラスト細胞の役割について解析することで、子宮内で起こるトロホブラスト細胞の融合機構から胎盤形成・妊娠維持のメカニズムを明らかにする。この成果は、早期胚死滅の原因解明および抑止につながり、畜産基盤を強固にする基礎研究となる。

Outline of Final Research Achievements

In Japan, the pregnancy rate in cattle has been steadily declining, and there has been no improvement. A possible cause is placental formation failure, but the mechanism has been characterized. In this study, we performed transcriptome analysis by RNA-seq with bovine placental trophoblast cells to clarify the regulatory mechanism of endogenous retrovirus-derived factors (ERVs) expression and their involvement in placental formation. As a result, we revealed that two types of ERVs are expressed in binuclear trophoblast cells necessary for placental formation after implantation in bovine placental tissue. We also identified that the transcription factor PPARγ is involved in this. Furthermore, when the cells were treated with a PPARγ activator, ERVs gene expression increased and binuclear cells increased. Similar changes were observed in bovine embryos after implantation.

Academic Significance and Societal Importance of the Research Achievements

本研究は、妊娠の維持に必須の胎盤形成のメカニズムの一端を明らかにした。胎盤形成においてその構成細胞であるトロホブラストの2核化が多くみられる。しかしながらその形成機序は不明であった。本成果は、機能が未だ不明な内在性レトロウイルス由来因子(ERVs)が関与しており、それらをPPARγ活性化により制御できることを明らかにした。これは、畜産現場で問題となっている着床・胎盤形成不全による早期胚死滅の原因解明および、その抑止につながる成果である。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (16 results)

All 2023 2022 2021 2020

All Journal Article (16 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 16 results,  Open Access: 15 results)

  • [Journal Article] Global analyses and potential effects of extracellular vesicles on the establishment of conceptus implantation during the peri-implantation period2023

    • Author(s)
      NAKAMURA Keigo、KUSAMA Kazuya、HORI Masatoshi、IMAKAWA Kazuhiko
    • Journal Title

      Journal of Reproduction and Development

      Volume: 69 Issue: 5 Pages: 246-253

    • DOI

      10.1262/jrd.2023-044

    • ISSN
      0916-8818, 1348-4400
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Progressive Exaptation of Endogenous Retroviruses in Placental Evolution in Cattle2023

    • Author(s)
      Sakurai Toshihiro、Kusama Kazuya、Imakawa Kazuhiko
    • Journal Title

      Biomolecules

      Volume: 13 Issue: 12 Pages: 1680-1680

    • DOI

      10.3390/biom13121680

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Expression of NFIL3 and CEBPA regulated by IFNT induced-PGE2 in bovine endometrial stromal cells during the pre-implantation period2023

    • Author(s)
      Rulan Bai, Kazuya Kusama, Yuta Matsuno, Hanako Bai, Toshihiro Sakurai, Koji Kimura, Kazuhiko Imakawa
    • Journal Title

      Frontiers in Endocrinology

      Volume: 14 Pages: 1075030-1075030

    • DOI

      10.3389/fendo.2023.1075030

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Endogenous Retroviruses and Placental Evolution, Development, and Diversity2022

    • Author(s)
      Imakawa Kazuhiko、Kusama Kazuya、Kaneko-Ishino Tomoko、Nakagawa So、Kitao Koichi、Miyazawa Takayuki、Ishino Fumitoshi
    • Journal Title

      Cells

      Volume: 11 Issue: 15 Pages: 2458-2458

    • DOI

      10.3390/cells11152458

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Toll-like receptor signaling pathway triggered by inhibition of serpin A1 stimulates production of inflammatory cytokines by endometrial stromal cells2022

    • Author(s)
      Kusama Kazuya、Satoyoshi Ayaka、Azumi Mana、Yoshie Mikihiro、Kojima Junya、Mizuno Yumi、Ono Masanori、Nishi Hirotaka、Kajihara Takeshi、Tamura Kazuhiro
    • Journal Title

      Frontiers in Endocrinology

      Volume: 13 Pages: 966455-966455

    • DOI

      10.3389/fendo.2022.966455

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Endoplasmic reticulum stress-regulated high temperature requirement A1 (HTRA1) modulates invasion and angiogenesis-related genes in human trophoblasts2022

    • Author(s)
      Kanoko Yoshida, Kazuya Kusama, Mana Azumi, Mikihiro Yoshie, Kiyoko Kato,Kazuhiro Tamura
    • Journal Title

      Journal of Pharmacological Sciences

      Volume: 150 Issue: 4 Pages: 267-274

    • DOI

      10.1016/j.jphs.2022.10.003

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Characterization of Serum Metabolome and Proteome Profiles Identifies SNX5 Specific for Pregnancy Failure in Holstein Heifers2022

    • Author(s)
      Kusama Kazuya、Bai Rulan、Matsuno Yuta、Ideta Atsushi、Sakurai Toshihiro、Nagaoka Kentaro、Hori Masatoshi、Imakawa Kazuhiko
    • Journal Title

      Life

      Volume: 12 Issue: 2 Pages: 309-309

    • DOI

      10.3390/life12020309

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Alpha 1 Antitrypsin Regulates Trophoblast Syncytialization and Inflammatory Factor Expression2022

    • Author(s)
      Yoshida K, Yano A, Kusama K, Ishikawa G, Tamura K
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 23 Issue: 4 Pages: 1955-1955

    • DOI

      10.3390/ijms23041955

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 反芻動物の着床期における細胞外分泌小胞エクソソームの役割と展望2021

    • Author(s)
      中村 圭吾, 草間 和哉, 須田 義人, 堀 正敏, 今川 和彦
    • Journal Title

      Nihon Chikusan Gakkaiho

      Volume: 92 Issue: 2 Pages: 131-139

    • DOI

      10.2508/chikusan.92.131

    • NAID

      130008063823

    • ISSN
      1346-907X, 1880-8255
    • Year and Date
      2021-05-25
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Alpha-1 Antitrypsin-Induced Endoplasmic Reticulum Stress Promotes Invasion by Extravillous Trophoblasts2021

    • Author(s)
      Yoshida Kanoko、Kusama Kazuya、Fukushima Yuta、Ohmaru-Nakanishi Takako、Kato Kiyoko、Tamura Kazuhiro
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 22 Issue: 7 Pages: 3683-3683

    • DOI

      10.3390/ijms22073683

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Endometrial epithelial?mesenchymal transition (EMT) by menstruation-related inflammatory factors during hypoxia2021

    • Author(s)
      Kusama K、Fukushima Y、Yoshida K、Sakakibara H、Tsubata N、Yoshie M、Kojima J、Nishi H、Tamura K
    • Journal Title

      Molecular Human Reproduction

      Volume: 27 Issue: 6

    • DOI

      10.1093/molehr/gaab036

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Day 7 Embryos Change the Proteomics and Exosomal Micro-RNAs Content of Bovine Uterine Fluid: Involvement of Innate Immune Functions2021

    • Author(s)
      Kusama K, Rashid MB, Kowsar R, Marey MA, Talukder AK, Nagaoka K, Shimada M, Khatib H, Imakawa K, Miyamoto A
    • Journal Title

      Frontiers in genetics

      Volume: 12 Pages: 676791-676791

    • DOI

      10.3389/fgene.2021.676791

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Senolytic treatment modulates decidualization in human endometrial stromal cells2021

    • Author(s)
      Kusama Kazuya、Yamauchi Naoya、Yoshida Kanoko、Azumi Mana、Yoshie Mikihiro、Tamura Kazuhiro
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 571 Pages: 174-180

    • DOI

      10.1016/j.bbrc.2021.07.075

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The effect of bta-miR-26b in intrauterine extracellular vesicles on maternal immune system during the implantation period2021

    • Author(s)
      Nakamura K, Kusama K, Hori M, Imakawa K
    • Journal Title

      Biochemical and biophysical research communications

      Volume: 573 Pages: 100-106

    • DOI

      10.1016/j.bbrc.2021.08.019

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] PGE2 and Thrombin Induce Myofibroblast Transdifferentiation via Activin A and CTGF in Endometrial Stromal Cells.2021

    • Author(s)
      Kusama K, Fukushima Y, Yoshida K, Azumi M, Yoshie M, Mizuno Y, Kajihara T, Tamura K.
    • Journal Title

      Endocrinology

      Volume: 162 Issue: 12

    • DOI

      10.1210/endocr/bqab207

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Emerging Role of Extracellular Vesicles in Embryo-Maternal Communication throughout Implantation Processes2020

    • Author(s)
      Nakamura K, Kusama K, Suda Y, Fujiwara H, Hori M, Imakawa K
    • Journal Title

      International journal of molecular sciences

      Volume: 21 Issue: 15 Pages: 5523-5523

    • DOI

      10.3390/ijms21155523

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access

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Published: 2020-04-28   Modified: 2025-01-30  

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