• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Development of a novel mucosal vaccine applying the immune memory function of nasopharyngeal-related lymphoid tissue (NALT)

Research Project

Project/Area Number 17K11389
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Otorhinolaryngology
Research InstitutionKagoshima University

Principal Investigator

OHORI Junichiro  鹿児島大学, 医歯学域鹿児島大学病院, 講師 (90507162)

Co-Investigator(Kenkyū-buntansha) 地村 友宏  鹿児島大学, 鹿児島大学病院, 医員 (10709596)
宮下 圭一  鹿児島大学, 医歯学域鹿児島大学病院, 助教 (30585063)
黒野 祐一  鹿児島大学, 医歯学域医学系, 教授 (80153427)
井内 寛之  鹿児島大学, 医歯学域医学系, 助教 (90645285)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords粘膜免疫 / アジュバント / インフルエンザ / 肺炎球菌 / 鼻咽腔関連リンパ組織
Outline of Final Research Achievements

The Aim of this study was to develop a vaccine that recall specific secretory IgA (SIgA) against various antigens by reactivating existing immune memory cells of people who have been infected or vaccinated. Mice were nasally immunized with inactivated whole particles of H1N1 influenza virus. After several months, it was confirmed that salivary HA-specific IgA antibody titers and serum HA-specific IgG antibody titers decreased. After that, Plasmid FLT3L (pFL) and CpG-ODN were intranasally administered as adjuvants, and HA-specific antibody titers in saliva and serum were evaluated. As a result, it was confirmed that the HA specific antibody titer was recalled. It is necessary to clarify the mechanism of this recall phenomenon in the future.

Academic Significance and Societal Importance of the Research Achievements

インフルエンザや肺炎球菌による肺炎の死者は現在でも多数に上る。これらに対するワクチンの開発は社会的に重要である。既感染者や、ワクチン接種者は、その抗原に対するメモリー細胞を持っていると考えられている。メモリー細胞を再活性化させることができれば、多数の抗原に対して抗原を用いずに免疫能を再活性化する可能性がある。本研究での抗原なしでアジュバントのみを投与するワクチンは、免疫能を再活性化する可能性がある。今後、そのメカニズムや効率的なアジュバントの開発、自己免疫疾患などの有害作用について検討が必要である。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (1 results)

All 2017

All Presentation (1 results)

  • [Presentation] 高齢マウスにおけるpFL+CpG-ODN 単独追加投与による抗原特異的免疫応答の再活性2017

    • Author(s)
      川畠雅樹、大堀純一郎、黒野祐一、藤橋浩太郎
    • Organizer
      第35回日本耳鼻咽喉科免疫アレルギー学会
    • Related Report
      2017 Research-status Report

URL: 

Published: 2017-04-28   Modified: 2021-02-19  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi