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2020 Fiscal Year Final Research Report

Clinical genetic backgorund in patients with kidney disease, eye movement disorder and inner ear defects

Research Project

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Project/Area Number 19K17752
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 53040:Nephrology-related
Research InstitutionShowa University

Principal Investigator

sato yoshinori  昭和大学, 医学部, 講師 (80515312)

Project Period (FY) 2019-04-01 – 2021-03-31
KeywordsCCDD / FSGS / DRS / RNA-seq
Outline of Final Research Achievements

All enrolled patients with CCDD(Congenital Cranial Dysinnervation Disorder)are sporadic not familial cases. 4 of 5 patients presented renal phenotype who diagnosed by FSGS (Focal Segmental Glomerular Sclerosis) and IgA nephropathy. We conducted whole genome (WGS) or whole exome sequence (WES) and RNA-seq (including small-RNA) study. As result of WGS and WES, described deleterious mutations are not detected. RNA-seq and small RNA sequence sequence reveal common pathway in three patients showed Axon Guidance analyzed by KEGG pathway using DIAND-miRPath ver3.0, which means the hypothesis reflected by undiscovered inherited common mechanisms.

Free Research Field

clinical genetics

Academic Significance and Societal Importance of the Research Achievements

2021年現在においてCCDDを対象にしたRNA-Seqの家系内集団に対象にした研究は行われていない。すべてのCCDDが遺伝を背景にしているかどうかという点も未解明であったが、少なくともRNAのレベルにおいてAxonGuidanceに関するPathwayは同一に障害されていることが見いだされたが、その遺伝学的な背景は全ゲノム解析を用いたDNAレベルの解析ではそれを裏付けできるような変化は認められなかった。この原因としては解析数が限られていたこと、および孤発性であったため、DNAレベルでの遺伝子の絞り込みが困難であったことが考えられる。

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Published: 2022-01-27  

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