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2022 Fiscal Year Final Research Report

Study on pathogenesis of flaccid paralysis caused by enterovirus D68 using animal models

Research Project

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Project/Area Number 19H03626
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 52050:Embryonic medicine and pediatrics-related
Research InstitutionNational Institute of Infectious Diseases

Principal Investigator

Nagata Noriyo  国立感染症研究所, 感染病理部, 室長 (30270648)

Co-Investigator(Kenkyū-buntansha) 西村 順裕  国立感染症研究所, ウイルス第二部, 主任研究官 (00392316)
清水 博之  国立感染症研究所, ウイルス第二部, 主任研究官 (90270644)
Project Period (FY) 2019-04-01 – 2023-03-31
KeywordsエンテロウイルスD68 / 動物モデル / 弛緩性麻痺 / 神経病原性
Outline of Final Research Achievements

The neuropathogenicity of EV-D68 in mice and cynomolgus monkeys was examined using a strain of H1HeLa cell-passaged EV-D68. Intracerebral inoculation into neonatal mice, intraspinal inoculation into adult mice, and intraspinal inoculation into monkeys with EV-D68 resulted flaccid paralysis in these animals. Histopathological examination revealed that these paralyses were due to loss of neurons in the anterior horn of the spinal cord after virus infection.

Free Research Field

新興・再興感染症ウイルスの病態・病理学

Academic Significance and Societal Importance of the Research Achievements

EV-D68感染症と弛緩性麻痺の関連性が強く疑われているが、詳細は不明である。本研究では実験動物を用いてEV-D68の神経病原性に関する病態病理解析とモデルの確立を行った。これらの動物モデルはEV-D68感染症のための新規治療法、予防法の確立のみならず、その発症機序の理解に貢献すると期待される。

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Published: 2024-01-30  

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