Investigation of the Suppressing Effect on Post-Kidney Transplantation Malignancy Due to KIR Ligand Mismatch
Project/Area Number |
17K16773
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Urology
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Research Institution | Akita University |
Principal Investigator |
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Project Period (FY) |
2017-04-01 – 2023-03-31
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Project Status |
Completed (Fiscal Year 2022)
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Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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Keywords | 移植医療 / 腎移植 / 組織適合性 / HLA / KIR / 移植免疫 / 腫瘍免疫 / 移植後悪性腫瘍 / NK細胞 / 移植免疫学 / 発がん抑制 |
Outline of Final Research Achievements |
Histocompatibility assessment is essential for kidney transplantation between the recipient and the organ donor. This predicts the immunological alloreactivity between the recipient and the donor. There exists a diverse repertoire for the HLA receptor-KIR involved in innate immunity, but pre-transplant compatibility assessments are hardly ever conducted. Therefore, we retrospectively explored the impact on the prognosis of kidney transplantation by assessing the tissue compatibility between the recipient and donor in the innate immune system. As a result, we found a difference in the frequency of carcinogenesis depending on the presence or absence of KIR ligand mismatch, that innate immunity is maintained when there is a KIR ligand mismatch, and we propose that it is involved in suppressing the onset of viral infections.
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Academic Significance and Societal Importance of the Research Achievements |
近年の腎移植医療は良好な治療成績を示し、長期QOLを得ることが大きな課題となっている。しかし、腎移植後の悪性腫瘍による死亡率は15%と高く(罹患率は健常人3 倍いじょうとされ)、増加傾向にある。本研究はレシピエントKIR遺伝子ハプロタイプが悪性腫瘍発症リスクを客観的に把握できる極めて重要な指標となりえることを示唆した。また、特定のウイルス感染リスクとも強く関連する可能性もある。現在の腎移植における免疫学的な適合性評価にKIR遺伝子は含まれていない。移植後重大合併症を回避するための治療戦略としてKIR-HLA適合性の重要性を提唱する。
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Report
(7 results)
Research Products
(32 results)
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[Journal Article] Loss of antibodies to hepatitis E virus in organ transplant patients with hepatitis E2021
Author(s)
Oshiro Y, Harada H, Hasegawa K, Akutsu N, Yoshizumi T, Kawagishi N, Nanmoku K, Ichimaru N, Okamura K, Ohira M, Itabashi Y, Fujiyama N, Ide K, Okajima H, Ogawa K, Takagi K, Eguchi H, Shinoda M, Nishida K, Shimazaki J, Shimoda M, Takahashi M, Okamoto H, Suzuki S.
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Journal Title
Hepatol Res
Volume: in press
Issue: 5
Pages: 538-547
DOI
Related Report
Peer Reviewed
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[Journal Article] A Nationwide Survey of Hepatitis E Virus Infection and Chronic Hepatitis in Heart and Kidney Transplant Recipients in Japan2019
Author(s)
Yohei Owada, Yukio Oshiro, Yuki Inagaki, Hiroshi Harada, Nobuhiro Fujiyama, Naoki Kawagishi, Takashi Yagisawa, Joichi Usui, Naotake Akutsu, Yoshihiro Itabashi, Kazuhide Saito, Yoshihiko Watarai, Naotsugu Ichimaru, Ryoichi Imamura, Miyaji Kyakuno, Kentaro Ide, Yuichi Shibuya, Yasuhiro Okabe, Minoru Ono, Konosuke Sasaki
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Journal Title
Transplantaion
Volume: In press
NAID
Related Report
Peer Reviewed
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[Journal Article] Contribution of UGT1A1 genetic polymorphisms related to axitinib pharmacokinetics to safety and efficacy in patients with renal cell carcinoma.2018
Author(s)
Igarashi R, Inoue T, Fujiyama N, Tsuchiya N, Numakura K, Kagaya H, Saito M, Narita S, Satoh S, Niioka T, Miura M, Habuchi T.
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Journal Title
Med Oncol.
Volume: 35(51)
Issue: 4
Pages: 51-58
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Clinical implications of pharmacokinetics of sunitinib malate and N-desethyl-sunitinib plasma concentrations for treatment outcome in metastatic renal cell carcinoma patients2018
Author(s)
Kazuyuki Numakura, Nobuhiro Fujiyama, Makoto Takahashi, Ryoma Igarashi, Hiroshi Tsuruta, Atsushi Maeno, Mingguo Huang, Mitsuru Saito, Shintaro Narita, Takamitsu Inoue, Shigeru Satoh, Norihiko Tsuchiya, Takenori Niioka, Masatomo Miura, Tomonori Habuchi
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Journal Title
Related Report
Peer Reviewed
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[Presentation] Evaluation of complement-related factors in TMA post-kidney transplantation: A retrospective multicenter study (interim analysis)2019
Author(s)
Nobuhiro Fujiyama, Masayuki Tasaki, Hiroshi Harada, Koichi Tsutahara, Akihiko Matsumoto, Yuta Hara, Masayoshi Okumi, Kazuhide Saito, Yoshihiko Watarai, Norimitsu inoue, Nobutaka Wakamiya, and Shigeru Satoh
Organizer
2019 American Transplant Congress
Related Report
Int'l Joint Research
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