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2021 Fiscal Year Final Research Report

Analysis of genetic mutations and pathophysiology in hereditary kidney disease

Research Project

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Project/Area Number 19K18622
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 56030:Urology-related
Research InstitutionJuntendo University

Principal Investigator

Kawano Haruna  順天堂大学, 医学部, 特任准教授 (90445528)

Project Period (FY) 2019-04-01 – 2022-03-31
KeywordsADPKD / TSC / 遺伝子解析 / パネル遺伝子検査 / 隣接遺伝子症候群 / 遺伝性腎疾患
Outline of Final Research Achievements

Genetic analysis was performed on 450 cases of autosomal dominant polycystic kidney disease (ADPKD) and nodular sclerosis (TSC), which are hereditary diseases. Though it was diagnosed as ADPKD in the clinical diagnosis, several cases with different causative genes were recognized. In addition, in the case of the PKD mutation, the PKD2 mutation occupied 26.7% of the total, and the ratio was higher than the previous report of about 15%. The Exon deletion of PKD1,2 amounted to 4.7%. The adjacent gene syndrome of TSC and ADPKD was observed in 6 cases of 4 familys, and all of them had the upper hand in TSC symptoms, and the result was different from the report that the renal dysfunction was remarkable.

Free Research Field

遺伝性腎疾患

Academic Significance and Societal Importance of the Research Achievements

本研究は、日本人のADPKD,TSCを対象とした遺伝子解析の研究として最も大規模なものである。ADPKDにおいては、典型的な経過をたどらない症例の中に、異なる遺伝子変異を持つ症例があることや、従来指摘されていた遺伝子変異型の割合が異なる可能性が示唆された。このことはADPKDの臨床において非常に重要で、遺伝子検査の必要性を強く後押しする結果となった。またTSCにおいては、特にPKDとの隣接遺伝子症候群において、これまでの報告と異なりTSC症状が優位であった。このことから、TSCの腎嚢胞が多い症例の中に、隣接遺伝子症候群を見落とされているケースがあると示唆された。

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Published: 2023-01-30  

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