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A mechasism for bovine maternal immune tolerance toward pregnancy via sensing sperm and embryo

Research Project

Project/Area Number 20H03122
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 InstitutionObihiro University of Agriculture and Veterinary Medicine

Principal Investigator

Miyamoto Akio  帯広畜産大学, 畜産学部, 教授 (10192767)

Co-Investigator(Kenkyū-buntansha) 今川 和彦  東海大学, 総合農学研究所, 特任教授 (00291956)
島田 昌之  広島大学, 統合生命科学研究科(生), 教授 (20314742)
草間 和哉  東京薬科大学, 薬学部, 講師 (30579149)
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 2022: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2021: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2020: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Keywords精子 / 受精卵 / 免疫寛容 / 受胎 / ウシ / 子宮 / TLR2 / IFNT / 免疫反応
Outline of Research at the Start

ウシ受胎率改善戦略の1つとして、母ウシの初期胚センシングによる免疫寛容活性化を体系的に検証する。子宮と卵管のTLR2を介した精子認識と、初期胚のIFNTによる子宮免疫寛容誘導に着目する。本企画は、「母ウシの自然免疫システムが精子により活性化され、次に受精卵の存在を認識して受胎成立に向けた寛容にシフトする」という論理で、(1)子宮の精子センシングと自然免疫反応、(2)受精での精子センシング、(3)子宮の初期胚センシングによる母体免疫寛容誘導、について解明し、(4)得た知見から導いた手法を活用してウシ受精卵移植試験をおこない受胎率改善戦略を示し、家畜生産性向上に寄与する目的で行う基礎的研究である。

Outline of Final Research Achievements

As one strategy to improve bovine conception rates, we systematically examined the activation of immune tolerance by early embryo sensing in the mother cow. We focused on sperm recognition via TLR2 in the uterus and oviduct, and induction of uterine immune tolerance by IFNT in the early embryo. As a result of a multifaceted approach, we showed that uterine sperm sensing and innate immune response are a cascade that begins with sperm invasion of the uterine gland. Sperm TLR2 activation increased hyperactivation motility, fertilization rate, and blastocyst development rate. Meanwhile, we discovered a mechanism by which IFNT secreted by early embryos stimulates neutrophils to amplify signals between immune cells. These findings reveal that activation of the innate immune systems of the mother, sperm, and fertilized eggs is the first step in immune tolerance toward pregnancy.

Academic Significance and Societal Importance of the Research Achievements

本研究成果から、ウシ母体、精子、受精卵の自然免疫システム活性化が受胎に向けた免疫寛容の最初の段階であることが明らかとなった。したがって、ウシ受胎率改善戦略の1つとして、母ウシの子宮に始まる弱い生理的な自然免疫応答を最適なタイミングで誘導することは、その後の1週間で起こる、初期胚が子宮に降りてゆき、その後の1週間で始まる着床・妊娠に向けた母体の胎児を受容する免疫寛容に移行するために極めて有効なアプローチとなる可能性が示された。期せずして、この新しい概念は、直近の数年間で世界中で支持され始めた。今後、安全で安心、低コストの技術開発に繋がる重要な科学基盤が確立したと考えられる。

Report

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

    (28 results)

All 2023 2022 2021 2020

All Journal Article (15 results) (of which Int'l Joint Research: 7 results,  Open Access: 15 results,  Peer Reviewed: 7 results) Presentation (13 results) (of which Int'l Joint Research: 3 results,  Invited: 3 results)

  • [Journal Article] Sperm induce proinflammatory responses in the uterus and peripheral blood immune cells of artificially inseminated cows2023

    • Author(s)
      MAREY Mohamed A.、MA Dongxue、YOSHINO Hitomi、ELESH Ibrahim F.、ZINNAH Mohammad A.、FIORENZA Mariani F.、MORIYASU Satoru、MIYAMOTO Akio
    • Journal Title

      Journal of Reproduction and Development

      Volume: 69 Issue: 2 Pages: 95-102

    • DOI

      10.1262/jrd.2022-124

    • ISSN
      0916-8818, 1348-4400
    • Related Report
      2022 Annual Research Report
    • Open Access
  • [Journal Article] Sperm interaction with the uterine innate immune system: toll-like receptor 2 (TLR2) is a main sensor in cattle2022

    • Author(s)
      Akthar Ihshan、Marey Mohamed A.、Kim Yejin、Shimada Masayuki、Suarez Susan S.、Miyamoto Akio
    • Journal Title

      Reproduction, Fertility and Development

      Volume: 34 Issue: 2 Pages: 139-148

    • DOI

      10.1071/rd21265

    • Related Report
      2022 Annual Research Report
    • Open Access
  • [Journal Article] Progesterone and Inflammatory Response in the Oviduct during Physiological and Pathological Conditions2022

    • Author(s)
      McGlade Emily A.、Miyamoto Akio、Winuthayanon Wipawee
    • Journal Title

      Cells

      Volume: 11 Issue: 7 Pages: 1075-1075

    • DOI

      10.3390/cells11071075

    • Related Report
      2022 Annual Research Report
    • Open Access
  • [Journal Article] Intrauterine infusion of low levels of interferon‐tau on day‐8 post‐estrus stimulates the bovine endometrium to secrete apolipoprotein‐A1: A possible implication for early embryo tolerance2022

    • Author(s)
      Rashid Mohammad B.、Marey Mohamed A.、Fukuda Kenji、Haneda Shingo、Kusama Kazuya、Shimada Masayuki、Imakawa Kazuhiko、Miyamoto Akio
    • Journal Title

      American Journal of Reproductive Immunology

      Volume: 88 Issue: 3

    • DOI

      10.1111/aji.13592

    • Related Report
      2022 Annual Research Report
    • Open Access
  • [Journal Article] Zearalenone interferes with the sperm-triggered inflammation in the bovine uterus in vitro: Negative impact on sperm motility and survival2022

    • Author(s)
      Elweza Ahmed E.、Marey Mohamed A.、Elesh Ibrahim F.、Zinnah Mohammad A.、Akthar Ihshan、Kanno Chihiro、Takagi Mitsuhiro、Miyamoto Akio
    • Journal Title

      Reproductive Toxicology

      Volume: 107 Pages: 81-89

    • DOI

      10.1016/j.reprotox.2021.12.001

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Toll-like receptor 2 is involved in Calcium influx and acrosome reaction to facilitate sperm penetration to oocytes during in vitro fertilization in cattle.2022

    • Author(s)
      Ma D, Marey MA, Shimada M, Miyamoto A.
    • Journal Title

      Frontiers in Cell and Developmental Biology

      Volume: 10 Pages: 810961-810961

    • Related Report
      2021 Annual Research Report
    • Open Access
  • [Journal Article] Possible impact of neutrophils on immune responses during early pregnancy in ruminants.2021

    • Author(s)
      Fiorenza MF, Amaral CS, Anuncao ARA, Portela VVM, Marey MA, Miyamoto A, Antoniazzi AQ.
    • Journal Title

      Animal Reproduction

      Volume: 18 Issue: 3

    • DOI

      10.1590/1984-3143-ar2021-0048

    • Related Report
      2021 Annual Research Report
    • Open Access
  • [Journal Article] Day 7 embryos change the proteomics and exosomal micro-RNAs content of bovine uterine fluid: Involvement of innate immune functions.2021

    • 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

    • Related Report
      2021 Annual Research Report
    • Open Access
  • [Journal Article] Neutrophils recognize and amplify IFNT signals derived from day 7 bovine embryo for stimulation of ISGs expression in vitro: A possible implication for the early maternal recognition of pregnancy.2021

    • Author(s)
      Fiorenza MF, Marey MA, Rashid MB, Zinnah MA, Ma D, Morillo VA, Kusama K, Shimada M, Imakawa K, Antoniazzi AQ, Miyamoto A.
    • Journal Title

      Biochem Biophy Res Comm

      Volume: 553 Pages: 37-43

    • Related Report
      2021 Annual Research Report
    • Open Access
  • [Journal Article] Peptidoglycan Switches Off the TLR2-Mediated Sperm Recognition and Triggers Sperm Localization in the Bovine Endometrium2021

    • Author(s)
      Elesh IF, Marey MA, Zinnah MA, Akhtar I, Kawai Naim TF, Goda W, Abou Rawash AR, Sasaki M, Shimada M, Miyamoto A.
    • Journal Title

      Frontiers in Immunology

      Volume: 11 Pages: 619408-619408

    • DOI

      10.3389/fimmu.2020.619408

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Epidermal growth factor alleviates the negative impact of urea on frozen-thawed bovine sperm, but the subsequent developmental competence is compromised2021

    • Author(s)
      Kowsar R, Ronasi S, Sadeghi N, Sadeghi K, Miyamoto A.
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 4687-4687

    • DOI

      10.1038/s41598-021-83929-z

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Bovine oviduct epithelial cells suppress the phagocytic activity of neutrophils towards sperm but not for bacteria in vitro: Immunofluorescence and electron microscopic observations.2020

    • Author(s)
      Marey MA, Matsukawa H, Sasaki M, Ezz MA, Yousef MA, Takahashi KI, Miyamoto A.
    • Journal Title

      Histology and Histopathology

      Volume: 35 Pages: 589-597

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Peptidoglycan disrupts early embryo-maternal crosstalk via suppression of ISGs expression induced by interferon-tau in the bovine endometrium2020

    • Author(s)
      Zinnah MA, Marey MA, Akthar I, Elesh IF, Matsuno Y, Elweza AE, Ma DX, Fiorenza MF, Sasaki M, Shimada M, Imakawa K, Miyamoto A.
    • Journal Title

      Biochem Biophy Res Comm

      Volume: 532 Issue: 1 Pages: 101-107

    • DOI

      10.1016/j.bbrc.2020.08.006

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Toll‐like receptor 2 mediates the immune response of the bovine oviductal ampulla to sperm binding2020

    • Author(s)
      Morillo VA, Akthar I, Fiorenza MF, Takahashi K, Sasaki M, Marey MA, Suarez SS, Miyamoto A.
    • Journal Title

      Mol Reprod Dev

      Volume: 87 Issue: 10 Pages: 1059-1069

    • DOI

      10.1002/mrd.23422

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A multilevel analysis identifies the different relationships between amino acids and the competence of oocytes matured individually or in groups2020

    • Author(s)
      Kowsar R, Mansouri A, Sadeghi N, Abadi MHA, Ghoreishi SM, Sadeghi K, Miyamoto A.
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1 Pages: 16082-16082

    • DOI

      10.1038/s41598-020-73225-7

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Sperm interaction with the uterine innate immune system: Toll-like receptor 2 (TLR2) is a main sensor in cattle.2022

    • Author(s)
      1)Miyamoto A, Akthar I, Marey MA, Kim Y, Shimada M, Suarez SS.
    • Organizer
      48th Annual Conference of International Embryo Technology Society (IETS)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Roadmap to pregnancy in the first 7 days post-insemination in the cow: Immune cross-talk in the corpus luteum, oviduct and uterus.2022

    • Author(s)
      2)Miyamoto A, Talukder AK, Marey MA, Shirasuna K, Kusama K, Shimada M, Imakawa K.
    • Organizer
      19th International Congress on Animal Reproduction (ICAR)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Sperm penetrate the uterine glands and induce uterine secretions that enhances other sperm hyperactivation and death.2022

    • Author(s)
      6)Akthar I, Sumitani M, Aoki R, Shimada M, Miyamoto A.
    • Organizer
      第115回日本繁殖生物学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Sperm interaction with the uterine innate immune system: Toll-like receptor 2 (TLR2) is a main sensor in cattle.2022

    • Author(s)
      Miyamoto A, Akthar I, Marey MA, Kim Y, Shimada M, Suarez SS.
    • Organizer
      48th Annual Conference of International Embryo Technology Society (IETS), Savannah, Georgia USA.
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Activation of sperm toll-like receptor 2 induces the mucus penetrating ability and subsequent sperm-induced uterine gland inflammatory responses in cattle.2021

    • Author(s)
      Akthar I, Kim Y, Umehara T, Marey MA, Shimada M, Miyamoto A.
    • Organizer
      第114回日本繁殖生物学会、2021.9.21-9.24、京都大
    • Related Report
      2021 Annual Research Report
  • [Presentation] Sperm TLR2 regulates Ca2+ influx and acrosome reaction to facilitate sperm penetration to oocytes during in vitro fertilization in cows.2021

    • Author(s)
      Ma D, Marey MA, Akthar I, Shimada M, Miyamoto A.
    • Organizer
      第114回日本繁殖生物学会、2021.9.21-9.24、京都大
    • Related Report
      2021 Annual Research Report
  • [Presentation] In vivo dynamics of sperm-induced inflammatory responses in the uterus and peripheral blood immune cells in artificially inseminated cows.2021

    • Author(s)
      Marey MA, Ma D, Yoshino H, Elesh IF, Moriyasu S, Miyamoto A.
    • Organizer
      第114回日本繁殖生物学会、2021.9.21-9.24、京都大
    • Related Report
      2021 Annual Research Report
  • [Presentation] Toll-like receptor 2 of bull sperm and uterus co-regulates sperm sensing by uterine gland to trigger the innate immune responses.2020

    • Author(s)
      Akthar I.
    • Organizer
      第113回 日本繁殖生物学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Intrauterine infusion of interferon-tau stimulates bovine endometrium to release apolipoprotein A-1 for embryo tolerance.2020

    • Author(s)
      Marey MA.
    • Organizer
      第113回 日本繁殖生物学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Toll-like receptor 2 of sperm is involved in sperm attachment to bovine oviductal epithelial cells.2020

    • Author(s)
      Kim Y.
    • Organizer
      第113回 日本繁殖生物学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] TLR2 pathway is involved in sperm acrosome reaction for penetration through zona pellucida for fertilization.2020

    • Author(s)
      Ma D.
    • Organizer
      第113回 日本繁殖生物学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] In silico molecular mechanism of sperm-endometrium interaction: Role of endogenous and exogenous agents in CD44-TLR2 interaction.2020

    • Author(s)
      Mansouri A.
    • Organizer
      第113回 日本繁殖生物学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Peptidoglycan disrupts the signals of embryo-secreted interferon-tau in the bovine endometrium.2020

    • Author(s)
      Zinnah MA.
    • Organizer
      第113回 日本繁殖生物学会
    • Related Report
      2020 Annual Research Report

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

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