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2021 Fiscal Year Annual Research Report

Molecular mechanism of thymic involution and its application to forensic diagnosis of child abuse

Research Project

Project/Area Number 18H03067
Research InstitutionWakayama Medical University

Principal Investigator

近藤 稔和  和歌山県立医科大学, 医学部, 教授 (70251923)

Project Period (FY) 2018-04-01 – 2022-03-31
Keywords児童虐待 / 胸腺 / ストレス / アポトーシス / 遺伝子欠損マウス / ケモカイン / サイトカイン / バイオマーカ
Outline of Annual Research Achievements

胸腺退縮は被虐待児の特徴の一つで,虐待ストレスによって胸腺のリンパ球にアポトーシスが誘導されるためと考えられている.そのアポトーシスの過程においてケモカインの関与が示唆されている.そこで,マウスにおけるストレス誘発性胸腺退縮におけるケモカインの役割を解析する.野生型マウスで1日1時間拘束ストレスにさらすと,胸腺が退縮することを明らかにした.CX3CR1ケモカインレセプターに着目し,CX3CR1遺伝子欠損マウスを同様に拘束ストレスに暴露した時の胸腺の変化についてみたところ,CX3CR1遺伝子欠損マウスでは胸腺退縮の程度が軽減していた.また,胸腺細胞のアポトーシスについても,CX3CR1遺伝子欠損マウスではアポトーシス細胞の数が明らか減少していた.副腎皮質ホルモンについては,CX3CR1遺伝子欠損マウスに比べて野生型マウスでは有意に増加していた.すなわち,CX3CR1遺伝子欠損マウスでは副腎皮質ホルモンを抑制することでストレス誘発性胸腺退縮に対して抵抗性を示すことが明らかになった.さら,胸腺におけるケモカイン(CCL2,CCL3, CCL4, CCL5),ケモカインレセプター(CCR2, CCR5)および炎症性サイトカイン(IL-1β,IL-6, IL-12p35,IL-12p40)の遺伝子発現を検討したところ, 野生型マウスとCX3CR1遺伝子欠損マウスの間で差は認められなかった.ストレス応答には視床下部-下垂体-副腎系(hypothalamic-pituitary-adrenal axis;HPA axis)が重要な役割をしていることから,視床下部おけるケモカインレセプターの発現を検討したところ,野生型マウスでは視床下部の神経細胞にCX3CR1発現を認めた.このことから,視床下部の神経細胞におけるCX3CR1発現が,胸腺退縮における重要な役割を果たしていることが示唆された.

Research Progress Status

令和3年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和3年度が最終年度であるため、記入しない。

  • Research Products

    (34 results)

All 2022 2021

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (28 results) (of which Int'l Joint Research: 15 results,  Invited: 3 results)

  • [Journal Article] A case of necrotizing fasciitis following intra-articular injections ? Iatrogenic or spontaneous?2022

    • Author(s)
      Matsuki Jumpei、Ishigami Akiko、Tanaka Motonari、Hata Satoshi、Ishida Yuko、Nosaka Mizuho、Kuninaka Yumi、Yamamoto Hiroki、Shimada Emi、Hashizume Yumiko、Takayasu Tatsunori、Kimura Akihiko、Furukawa Fukumi、Kondo Toshikazu
    • Journal Title

      Legal Medicine

      Volume: 54 Pages: 101989~101989

    • DOI

      10.1016/j.legalmed.2021.101989

    • Peer Reviewed
  • [Journal Article] Complete decapitation by a self-constructed guillotine in a burned body - complex suicide or postmortem burning?2021

    • Author(s)
      Ishigami Akiko、Hata Satoshi、Ishida Yuko、Nosaka Mizuho、Kuninaka Yumi、Yamamoto Hiroki、Shimada Emi、Hashizume Yumiko、Takayasu Tatsunori、Kimura Akihiko、Furukawa Fukumi、Kondo Toshikazu
    • Journal Title

      International Journal of Legal Medicine

      Volume: 135 Pages: 301~305

    • DOI

      10.1007/s00414-020-02323-y

    • Peer Reviewed
  • [Journal Article] Intrathrombotic appearances of AQP-1 and AQP-3 in relation to thrombus age in murine deep vein thrombosis model2021

    • Author(s)
      Nosaka Mizuho、Ishida Yuko、Kuninaka Yumi、Ishigami Akiko、Taruya Akira、Shimada Emi、Hashizume Yumiko、Yamamoto Hiroki、Kimura Akihiko、Furukawa Fukumi、Kondo Toshikazu
    • Journal Title

      International Journal of Legal Medicine

      Volume: 135 Pages: 547~553

    • DOI

      10.1007/s00414-020-02482-y

    • Peer Reviewed
  • [Journal Article] A comparative study of pleural effusion in water area, water temperature and postmortem interval in forensic autopsy cases of drowning2021

    • Author(s)
      Ishigami Akiko、Kashiwagi Masayuki、Ishida Yuko、Hara Kenji、Nosaka Mizuho、Matsusue Aya、Yamamoto Hiroki、Waters Brian、Kondo Toshikazu、Kubo Shin-ichi
    • Journal Title

      Scientific Reports

      Volume: 11 Pages: -

    • DOI

      10.1038/s41598-021-01047-2

    • Peer Reviewed
  • [Journal Article] Forensic significance of intracardiac heme oxygenase-1 expression in acute myocardial ischemia2021

    • Author(s)
      Kuninaka Yumi、Ishida Yuko、Nosaka Mizuho、Ishigami Akiko、Taruya Akira、Shimada Emi、Kimura Akihiko、Yamamoto Hiroki、Ozaki Mitsunori、Furukawa Fukumi、Kondo Toshikazu
    • Journal Title

      Scientific Reports

      Volume: 11 Pages: -

    • DOI

      10.1038/s41598-021-01102-y

    • Peer Reviewed
  • [Journal Article] Fatal injury by high-pressure water jet unit ? A case report2021

    • Author(s)
      Ishigami Akiko、Iwahashi Yumi、Ishida Yuko、Nosaka Mizuho、Kuninaka Yumi、Yamamoto Hiroki、Hashizume Yumiko、Kondo Toshikazu
    • Journal Title

      Journal of Forensic and Legal Medicine

      Volume: 84 Pages: 102270~102270

    • DOI

      10.1016/j.jflm.2021.102270

    • Peer Reviewed
  • [Presentation] 法医学から見た虐待による小児頭部外傷について2022

    • Author(s)
      近藤稔和
    • Organizer
      第45回日本脳神経外傷学会
    • Invited
  • [Presentation] 新生児・乳児を取り巻く法医学的諸問題-虐待例を中心に-2021

    • Author(s)
      近藤稔和
    • Organizer
      第73回日本産科婦人科学会学術講演会
    • Invited
  • [Presentation] Immunohistochemical detection of heme oxygenase-1 in acute myocardial infarction.2021

    • Author(s)
      Ishida Y, Kuninaka Y, Nosaka M, Shimada E, Ishigami A, Kimura A, Yamamoto H, Furukawa F, Kawaguchi M, Kondo T.
    • Organizer
      25th Congress of the International Academy of Legal Medicine (IALM2021)
    • Int'l Joint Research
  • [Presentation] Forensic pathological study on temporal appearance of dendritic cells in skin wounds.2021

    • Author(s)
      Kuninaka Y, Ishida Y, Nosaka M, Shimada E, Kimura A, Yamamoto H, Furukawa F, Kawaguchi M, Eisenmenger W, Kondo T.
    • Organizer
      25th Congress of the International Academy of Legal Medicine (IALM2021)
    • Int'l Joint Research
  • [Presentation] Fibrinolytic role of CX3CR1 and its application to thrombus age estimation in deep vein thrombosis model mice.2021

    • Author(s)
      Nosaka M, Ishida Y, Ishigami A, Kuninaka Y, Yamamoto H, Shimada E, Hashizume Y, Kawaguchi M, Kimura A, Kondo T.
    • Organizer
      25th Congress of the International Academy of Legal Medicine (IALM2021)
    • Int'l Joint Research
  • [Presentation] A comparative study of pleural effusion in water area, water temperature and postmortem interval in forensic autopsy cases of drowning.2021

    • Author(s)
      Ishigami A, Kashiwagi M, Ishida Y, Hara K, Nosaka M, Matsusue A, Yamamoto H, Waters B, Kubo, Kondo T.
    • Organizer
      25th Congress of the International Academy of Legal Medicine (IALM2021)
    • Int'l Joint Research
  • [Presentation] Crucial role of IL-6 in murine DVT model via macrophage recruitment and the induction of proteolytic enzymes.2021

    • Author(s)
      Nosaka M, Ishida Y, Kimura A, Ishigami A, Kuninaka Y, Yamamoto H, Hashizume Y, Kimura A, Mukaida N, Kondo T.
    • Organizer
      The 27th International Symposium on Molecular Cell Biology of Macrophages 2020+1 (MMCB2020+1)
    • Int'l Joint Research
  • [Presentation] Prevention of CaCl2-induced aortic inflammation and subsequent aneurysm formation by CCL3.2021

    • Author(s)
      Ishida Y, Kuninaka Y, Nosaka M, Kimura A, Taruya A, Furuta M, Mukaida N, Kawaguchi M, Kondo T.
    • Organizer
      The 27th International Symposium on Molecular Cell Biology of Macrophages 2020+1 (MMCB2020+1)
    • Int'l Joint Research
  • [Presentation] Spi-B plays a protective role in pressure overload-induced heart failure through the proliferation of resident macrophages.2021

    • Author(s)
      Kimura A, Ishida Y, Nosaka M, Kuninaka Y, Taruya A, Sasaki I, Kaisho T, Kondo T.
    • Organizer
      The 27th International Symposium on Molecular Cell Biology of Macrophages 2020+1 (MMCB2020+1)
    • Int'l Joint Research
  • [Presentation] CCL3-CCR5 axis exacerbate acetaminophen-induced liver injury in mice.2021

    • Author(s)
      石田裕子,國中由美,石部琢也,野坂みずほ,山本寛記,石上安希子,島田栄美,木村章彦,川口真理子,向田直史,近藤稔和.
    • Organizer
      第42回日本炎症・再生医学会
  • [Presentation] 深部静脈血栓症モデルにおけるCCR5システムの病態生理学的役割の解明(第3報)2021

    • Author(s)
      野坂みずほ,石田裕子,石上安希子,山本寛記,國中由美,橋爪佑示子,木村章彦,向田直史,近藤稔和.
    • Organizer
      第42回日本炎症・再生医学会
  • [Presentation] Absence of CCL5/CCR5 axis inhibits thrombus resolution through reduced uPA, tPA and VEGF expressions in DVT model.2021

    • Author(s)
      Nosaka M, Ishida Y, Ishigami A, Kuninaka Y. Yamamoto H, Shimada E, Hashizume Y, Kawaguchi M, Kimura A, Mukaida N, Kondo T.
    • Organizer
      ISTH2021
    • Int'l Joint Research
  • [Presentation] The involvement of CX3CR1 in stress-induced thymic atrophy.2021

    • Author(s)
      Kondo T, Ishida Y, Kuninaka Y, Nosaka M, Yamamoto H, Shimada E, Kawaguchi M, Kimura A, Furukawa F, Mukaida N.
    • Organizer
      100th Annual Conference German Society of Legal Medicine
    • Int'l Joint Research
  • [Presentation] Forensic examination of complex suicide cases.2021

    • Author(s)
      Ishigami A, Tanaka M, Hashizume Y, Matsuki J, Ishida Y, Nosaka M, Yamamoto H, Kuninaka Y, Shimada E, Kawaguchi M, Kimura A, Furukawa F, Kondo T.
    • Organizer
      100th Annual Conference German Society of Legal Medicine
    • Int'l Joint Research
  • [Presentation] Forensic significance of intracardiac heme oxygenase-1 expression in acute myocardial ischemia.2021

    • Author(s)
      Ishida Y, Kuninaka Y, Nosaka M, Ishigami A, Taruya A, Shimada E, Kimura A, Yamamoto H, Ozaki M, Furukawa F, Matsuki J, Kawaguchi M, Kondo T.
    • Organizer
      100th Annual Conference German Society of Legal Medicine
    • Int'l Joint Research
  • [Presentation] Forensic pathological study on temporal appearance of dendritic cells in skin wounds.2021

    • Author(s)
      Kuninaka Y, Ishida Y, Nosaka M, Ishigami A, Shimada E, Kimura A, Ozaki M, Yamamoto H, Furukawa F, Matsuki J, Kawaguchi M, Eisenmenger W, Kondo T.
    • Organizer
      100th Annual Conference German Society of Legal Medicine
    • Int'l Joint Research
  • [Presentation] Absence of CCR5/CCL5 axis exaggerates thrombus formation through reduced uPA, tPA and VEGF expression in murine DVT model.2021

    • Author(s)
      Nosaka M, Ishida Y, Ishigami A, Kuninaka Y, Shimada E, Hashizume Y, Yamamoto H, Kimura A, Furukawa F, Mukaida N, Kondo T.
    • Organizer
      100th Annual Conference German Society of Legal Medicine
    • Int'l Joint Research
  • [Presentation] A case of necrotizing fasciitis following intra-articular injections-iatrogenic or spontaneous?2021

    • Author(s)
      Matsuki J, Ishigami A, Ishida Y, Nosaka M, Kuninaka Y, Yamamoto H, Shimada E, Hashizume Y, Kimura A, Furukawa F, Kondo T.
    • Organizer
      100th Annual Conference German Society of Legal Medicine
    • Int'l Joint Research
  • [Presentation] 分子細胞生物学と生活反応2021

    • Author(s)
      近藤稔和
    • Organizer
      第105次日本法医学会学術全国集会
  • [Presentation] 深部静脈血栓における熱ショック蛋白の動態と法医診断学的応用に関する研究2021

    • Author(s)
      野坂みずほ,石田裕子,國中由美,石上安希子,山本寛記,橋爪佑示子,島田栄美,川口真理子,木村章彦,近藤稔和.
    • Organizer
      第105次日本法医学会学術全国集会
  • [Presentation] これからの死因究明についてー現代社会における法医学の役割―2021

    • Author(s)
      近藤稔和
    • Organizer
      第38回日本法医学会学術中四国地方集会
    • Invited
  • [Presentation] Crucial role of IL-6 in thrombus resolution in DVT model mouse via induction of proteolytic enzymes.2021

    • Author(s)
      Nosaka M, Ishida Y, Ishigami A, Kuniinaka Y, Yamamoto H, Kimura A, Mukaida N, Kondo T.
    • Organizer
      9th Annual Meeting of the International Cytokine & Interferon Society (Cytokines2021)
    • Int'l Joint Research
  • [Presentation] Oncostatin M receptor β mediates skin wound healing by regulating HGF synthesis in fibroblasts.2021

    • Author(s)
      石田裕子,國中由美,小森忠祐,野坂みずほ,木村章彦,宮島 篤,森川吉博,川口真理子,近藤稔和.
    • Organizer
      第51回日本創傷治癒学会
  • [Presentation] 熱傷におけるXCL1およびXCR1の発現解析2021

    • Author(s)
      野坂みずほ,石田裕子,石上安希子,國中由美,山本寛記,木村章彦,近藤稔和.
    • Organizer
      第51回日本創傷治癒学会
  • [Presentation] CCL3-CCR5 axis exacerbate acetaminophen-induced liver injury in mice.2021

    • Author(s)
      Ishida Y, Kuninaka Y, Nosaka M, Kimura A, Mukaida N, Kondo T.
    • Organizer
      第50回日本免疫学会学術集会
  • [Presentation] CCL3-CCR5 axis improve innate immune responses during septic peritonitis.2021

    • Author(s)
      Kuninaka Y, Ishida Y, Nosaka M, Kimura A, Mukaida N, Kondo T.
    • Organizer
      第50回日本免疫学会学術集会
  • [Presentation] Expressions of intrathrombotic CX3CR1 and fractalkine and their possible role in thrombolysis on murine DVT model.2021

    • Author(s)
      Nosaka M, Ishida Y, Kimura A, Kuninaka Y, Mukaida N, Kondo T.
    • Organizer
      第50回日本免疫学会学術集会
  • [Presentation] 法医実務における再鑑定の現状と今後の在り方について2021

    • Author(s)
      近藤稔和
    • Organizer
      第4回日本法医病理学会学術全国集会

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Published: 2022-12-28  

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