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2018 Fiscal Year Final Research Report

Mechanism of neurodevelopmental disabilities caused by congenital cytomegalovirus infection

Research Project

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Project/Area Number 16K10118
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Embryonic/Neonatal medicine
Research InstitutionNational Center for Child Health and Development

Principal Investigator

Nakamura Hiroyuki  国立研究開発法人国立成育医療研究センター, 免疫アレルギー・感染研究部, 室長 (70256866)

Project Period (FY) 2016-04-01 – 2019-03-31
Keywordsサイトメガロウイルス / CMV / 神経障害 / 先天性CMV感染症 / SLITRK6 / 難聴 / IE2
Outline of Final Research Achievements

Congenital cytomegalovirus (CMV) infection causes sensorineural hearing loss and neurodevelopmental impairment. To understand the molecular mechanism of neuropathogenesis of CMV, we tried to identify novel cellular gene products which may be involved in the CMV neuropathogenesis. We experimentally reproduced CMV-induced neural damages in vitro using human neural cell lines infected with CMV Towne strain or AD169 strain. We analyzed cellular gene expression affected by CMV infection and identified SLITRK6 whose expression was significantly downregulated by CMV infection. We also clarified that the downregulation of SLITRK6 expression by CMV was mediated by CMV-encoded IE2.

Free Research Field

ウイルス学

Academic Significance and Societal Importance of the Research Achievements

先天性CMV感染症では、難聴や精神発達遅滞などの神経・感覚器障害をともなうが、その発症メカニズムについては不明な点が多い。本研究は、ヒト神経系培養細胞を用いたCMV感染モデルの確立とその活用により、神経・感覚器障害の発症メカニズムの解明を目指すとともに、得られた知見をCMV病原性の制御に向けた新たな方法の開発へ結びつけることを目標とした。本研究成果は、CMVによる神経・感覚器障害に関与する新規細胞遺伝子産物の同定を介してCMV病原性発症メカニズムの理解を深めるとともに、CMV神経病原性の新規制御法を確立する上でも有用な情報になると考えられる。

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Published: 2020-03-30   Modified: 2022-01-27  

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