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Development of a novel diagnostic kit to detect lymph nodes in thyroid papillary carcinoma

Research Project

Project/Area Number 16K10461
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field General surgery
Research InstitutionNagasaki University

Principal Investigator

OTSUBO Ryota  長崎大学, 病院(医学系), 助教 (80570043)

Co-Investigator(Kenkyū-buntansha) 中島 正洋  長崎大学, 原爆後障害医療研究所, 教授 (50284683)
矢野 洋  長崎大学, 病院(医学系), 講師 (50380887)
永安 武  長崎大学, 医歯薬学総合研究科(医学系), 教授 (80284686)
馬場 雅之  長崎大学, 医歯薬学総合研究科(医学系), 研究協力員 (90771957)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords甲状腺乳頭癌 / リンパ節転移 / Semi-dry dot-blot法 / 病理学 / 甲状腺 / 癌
Outline of Final Research Achievements

In this study, we applied the semi-dry dot-blot (SDB) method, which is a novel diagnostic procedure using a protein from lavage fluid of sliced lymph nodes (LNs), to detection for metastatic LNs of thyroid papillary carcinoma.
We got 161 LNs from 40 thyroid papillary carcinomas and extracted the protein from cells on a surface of divided LNs at the maximum diameter. Meanwhile, we submitted the sliced LNs to pathological department for usual intraoperative pathological diagnosis and compared results of the SDB method and the pathological diagnosis. The SDB method was evaluated with pancytokeratin antibody (AE1/AE3), anti-thyroglobulin antibody, and anti-TTF-1 antibody and their sensitivity and specificity were 33/100%, 50/100%, and 57/96%, respectively.

Academic Significance and Societal Importance of the Research Achievements

過去の研究において乳癌でのSDB法は感度・特異度・一致率ともに90%以上と高精度で、臨床的にも術中迅速病理診断に応用可能であるため、市販化を見据えた本法のキット化に着手している。しかし、甲状腺乳頭癌においては抗汎サイトケラチン抗体(AE1/AE3)、抗サイログロブリン抗体、抗TTF-1抗体を用いたSDB法の感度が低い事が判明したため、今後これら以外の抗体での評価が必要である。また、引き続き乳癌におけるキット化を継続しながら、悪性黒色腫などへのSDB法の応用を検討したい。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (3 results)

All 2018 2017 2016

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (1 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Validation of a Novel Diagnostic Kit Using the Semidry Dot-Blot Method to Detect Metastatic Lymph Nodes in Breast Cancer: Distinguishing Macrometastases From Nonmacrometastases.2018

    • Author(s)
      Ryota Otsubo
    • Journal Title

      Clinical Breast Cancer

      Volume: 18

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Validation of a Novel Diagnostic Kit Using the Semidry Dot-Blot Method to Detect Metastatic Lymph Nodes in Breast Cancer: Distinguishing Macrometastases From Nonmacrometastases.2017

    • Author(s)
      Ryota Otsubo
    • Journal Title

      Clinical breast cancer

      Volume: 17 Issue: 3 Pages: e345-e351

    • DOI

      10.1016/j.clbc.2017.07.009

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Validation of novel diagnostic kits using the semi-dry dot-blot method for detecting metastatic lymph nodes in breast cancer; distinguishing macrometastases and micrometastases2016

    • Author(s)
      Ryota Otsubo
    • Organizer
      San Antonio Breast Cancer Symposium 2016
    • Place of Presentation
      San Antonio, Texas, USA
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2020-03-30  

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