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2023 Fiscal Year Final Research Report

Establishment of early diagnosis method based on elucidation of the molecular mechanism of bovine leukemia pathogenesis

Research Project

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Project/Area Number 22K19232
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 42:Veterinary medical science, animal science, and related fields
Research InstitutionHokkaido University

Principal Investigator

KONNAI Satoru  北海道大学, 獣医学研究院, 教授 (40396304)

Project Period (FY) 2022-06-30 – 2024-03-31
Keywords牛伝染性リンパ腫 / 牛伝染性リンパ腫ウイルス / 地方病性牛伝染性リンパ腫 / レトロウイルス / プロウイルス / 挿入部位 / クローナリティ / 早期診断
Outline of Final Research Achievements

There is no diagnostic method to predict the onset of enzootic bovine leukeima (EBL), which is rapidly increasing in Japan. In this study, we developed a comprehensive amplification method of proviral insertion site (RAISING) to evaluate clonality of infected cells to establish a new method for predicting the onset of EBL. The clonality value (Cv) was significantly higher in cattle with EBL than in unaffected cattle, confirming that Cv is a highly accurate diagnostic marker for EBL. This study showed that clonality analysis using the RAISING method is a useful diagnostic and predictive method for EBL.

Free Research Field

獣医学

Academic Significance and Societal Importance of the Research Achievements

RAISING法によるBLVクローナリティ解析を臨床症例に応用し、牛伝染性リンパ腫の鑑別診断法ならびに発症予測法としての有用性が示された。本研究により、クローナリティ解析はEBLの診断法並びに発症予測法として有用であると示された。今後は、大規模な野外調査により本技術の有用性を臨床現場で実証し、EBLによる畜産被害の軽減や生産性の向上に役立てていきたい。

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Published: 2025-01-30  

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