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Pathological analysis of the lymphatic vessels and the surrounding tissues in lymphedema patients and developement of the treatment

Research Project

Project/Area Number 20K23011
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0906:Surgery related to the biological and sensory functions and related fields
Research InstitutionAichi Medical University

Principal Investigator

Hara Hisako  愛知医科大学, 公私立大学の部局等, 客員研究員 (50624243)

Project Period (FY) 2020-09-11 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsリンパ浮腫 / リンパ管エコー / podoplanin染色 / LYVE-1染色 / 集合リンパ管 / LYVE-1 / podoplanin / リンパ管 / 病態 / 治療法開発 / 病理学的解析
Outline of Research at the Start

リンパ浮腫は、主に癌治療におけるリンパ管郭清、放射線治療などによりリンパ管機能不全となることで発症する。圧迫療法や用手的リンパドレナージなどの複合的治療で改善が困難な場合は外科的治療が行われる。我々はリンパ管静脈吻合術(LVA)、脂肪吸引などを行い治療効果を認めているが、未だにリンパ浮腫を完治させる方法はない。リンパ浮腫の治療法開発にはその病態解明が不可欠である。本研究では、手術中に採取したリンパ浮腫患肢における集合リンパ管や周囲組織を病理学的、生理学的に解析する。これによりリンパ浮腫に対する診断法、外科治療法を確立し、さらには内科的治療開発の可能性を検討する。

Outline of Final Research Achievements

Currently, there are about 200,000 lymphedema patients in Japan. The pathology of lymphedema is often unknown, and it is essential to elucidate the pathophysiology for the development of therapeutic and preventive methods. We harvested lymphatic vessels from the lower limbs or genital area during LVA surgery at JR Tokyo General Hospital and performed LYVE-1 staining, podoplanin staining, etc. at the Department of Anatomy, Aichi Medical University. We investigated the differences in lymphatic findings depending on the site. At the same time, we examined the effects of lymphatic ultrasound and detailed ICG lymphography.

Academic Significance and Societal Importance of the Research Achievements

リンパ浮腫の患肢における集合リンパ管は、形態学的に正常リンパ管と異なる所見を呈することがわかった。患肢の部位、罹患期間、患者の年齢などに伴い、リンパ管の形状は異なる可能性があり、今後、リンパ浮腫患肢におけるリンパ管の変化を解明することで、リンパ浮腫の治療をより適切に選択できるようになる可能性がある。

Report

(3 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • Research Products

    (21 results)

All 2022 2021

All Journal Article (9 results) (of which Peer Reviewed: 9 results,  Open Access: 2 results) Presentation (12 results) (of which Int'l Joint Research: 2 results,  Invited: 7 results)

  • [Journal Article] Evaluation of lymphatic vessel diameters in healthy people using lymphatic ultrasound examination.2022

    • Author(s)
      Hara H, Mihara M.
    • Journal Title

      J Vasc Surg Venous Lymphat Disord.

      Volume: 10(3) Issue: 3 Pages: 758-764

    • DOI

      10.1016/j.jvsv.2021.09.007

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The accuracy of lymphatic ultrasound in measuring the lymphatic vessel size in lower limb lymphedema patients.2021

    • Author(s)
      Hara H, Mihara M.
    • Journal Title

      J Plast Reconstr Aesthet Surg.

      Volume: Dec 6 Issue: 5 Pages: 1573-1578

    • DOI

      10.1016/j.bjps.2021.11.104

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Lymphatic Dysfunction Detected by Multi-lymphosome Indocyanine Green Lymphography and Lymphatic Ultrasound.2021

    • Author(s)
      Hara H, Mihara M.
    • Journal Title

      Plast Reconstr Surg Glob Open.

      Volume: 9(10) Issue: 10 Pages: e3859-e3859

    • DOI

      10.1097/gox.0000000000003859

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Genital lymphaticovenous anastomosis (LVA) and leg LVA to prevent the recurrence of genital acquired lymphangiectasia.2021

    • Author(s)
      Hara H, Mihara M.
    • Journal Title

      Int J Low Extrem Wounds.

      Volume: May 31 Issue: 5 Pages: 412-420

    • DOI

      10.1002/micr.30733

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Classification of the lymphatic pathways in each lymphosome based on multi-lymphosome indocyanine green lymphography: Saphenous, calf, and thigh (SCaT) classification.2021

    • Author(s)
      Hara H, Mihara M.
    • Journal Title

      J Plast Reconstr Aesthet Surg.

      Volume: 74(11) Issue: 11 Pages: 2941-2946

    • DOI

      10.1016/j.bjps.2021.03.078

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Comparison of Various Kinds of Probes for Lymphedematous Limbs.2021

    • Author(s)
      Hara H, Mihara M.
    • Journal Title

      Plast Reconstr Surg Glob Open.

      Volume: 22;9(3) Issue: 3 Pages: e3490-e3490

    • DOI

      10.1097/gox.0000000000003490

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Lymphaticovenous anastomosis for advanced‐stage lower limb lymphedema2021

    • Author(s)
      Hara Hisako、Mihara Makoto
    • Journal Title

      Microsurgery

      Volume: 41 Issue: 2 Pages: 140-145

    • DOI

      10.1002/micr.30689

    • Related Report
      2021 Annual Research Report 2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Change of the Lymphatic Diameter in Different Body Positions.2021

    • Author(s)
      Hara H, Mihara M.
    • Journal Title

      Lymphat Res Biol.

      Volume: 19(3) Issue: 3 Pages: 249-255

    • DOI

      10.1089/lrb.2020.0081

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Diagnosis of Lymphatic Dysfunction by Evaluation of Lymphatic Degeneration with Lymphatic Ultrasound2021

    • Author(s)
      Hara Hisako、Mihara Makoto
    • Journal Title

      Lymphatic Research and Biology

      Volume: - Issue: 4 Pages: 334-339

    • DOI

      10.1089/lrb.2019.0071

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] リンパ浮腫診断の最前線2022

    • Author(s)
      原尚子
    • Organizer
      第14回 日本静脈学会瀬戸内・西日本支部総会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] エコー検査で評価した、リンパ浮腫下肢と健常人下肢におけるリンパ管径の体位による変化2022

    • Author(s)
      原尚子
    • Organizer
      第65回日本形成外科学会総会・学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 超音波検査でリンパ管機能を診断する2022

    • Author(s)
      原尚子
    • Organizer
      日本超音波医学会第95回学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 進行したリンパ浮腫に対するLVAの効果2021

    • Author(s)
      原尚子
    • Organizer
      第4回日本リンパ浮腫学会総会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Recent breakthrough in LVA2021

    • Author(s)
      Hisako Hara
    • Organizer
      International Microsurgery Club
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 科学的データに基づいたリンパ浮腫チーム医療を確立する2021

    • Author(s)
      原尚子
    • Organizer
      第4回日本リンパ浮腫治療学会四国地方会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] リンパ浮腫の超音波検査2021

    • Author(s)
      原尚子
    • Organizer
      第5回リンパ浮腫治療学会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Recent Innovation in the Preoperative Examination for LVA2021

    • Author(s)
      Hisako Hara
    • Organizer
      2 nd Vienna Lymphology Symposium
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] リンパ浮腫の外科治療最前線2021

    • Author(s)
      原尚子
    • Organizer
      第48回日本マイクロサージャリー学会学術集会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 乳がん患者のリンパ浮腫 ー保存療法から外科治療まで2021

    • Author(s)
      原 尚子
    • Organizer
      第 27 回日本産婦人科乳腺医学会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 陰部リンパ浮腫に対する治療戦略 ―リンパ流の方向を考える―2021

    • Author(s)
      原 尚子
    • Organizer
      第 4 回日本リンパ浮腫学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] 進行したリンパ浮腫に対するLVAの効果2021

    • Author(s)
      原 尚子
    • Organizer
      第 4 回日本リンパ浮腫学会総会
    • Related Report
      2020 Research-status Report

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Published: 2020-09-29   Modified: 2023-01-30  

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