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2022 Fiscal Year Final Research Report

Analysis of herpesvirus tropism with the interaction between virus and host

Research Project

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Project/Area Number 19H03478
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 49060:Virology-related
Research InstitutionKitasato University (2021-2022)
Fukushima Medical University (2019-2020)

Principal Investigator

Tadahiro Suenaga  北里大学, 医学部, 教授 (20396675)

Co-Investigator(Kenkyū-buntansha) 荒瀬 尚  大阪大学, 微生物病研究所, 教授 (10261900)
Project Period (FY) 2019-04-01 – 2022-03-31
Keywords水痘帯状疱疹ウイルス / 単純ヘルペスウイルス / ヒトヘルペスウイルス6 / トロピズム / 糖鎖
Outline of Final Research Achievements

The identification of the entry receptor Siglec-7, which binds to varicella-zoster virus (VZV) gB, reveals an aspect of the tropism of VZV for blood cells. It also revealed that both sialic acid on gB and on the host cell side regulate infection.
A host molecule was identified that binds to the viral protein of human herpesvirus 6 (HHV-6). It was suggested that HHV-6 regulates immune cells via this molecule and that, conversely, immune cells regulate viral infection via this molecule.
Glycosylation of herpes simplex virus gB alters the dominance of the receptor to which it binds and is involved in viral tropism.

Free Research Field

ウイルス学、免疫学

Academic Significance and Societal Importance of the Research Achievements

VZVは血球細胞に感染した後で、全身臓器に広がり、水痘や脳脊髄炎を引き起こすが、本研究により、血球細胞への感染機構が明らかになった。さらに、ウイルス分子と宿主受容体の関係以外のメカニズムによる、単純ヘルペスウイルスやHHV-6のトロピズムを規定する因子がわかってきた。VZVの結果と総合して、広くヘルペスウイルスにおける臓器ごとの感染機構が解明されてきたことによって、今後ヒトヘルペスウイルス科ウイルス感染症の制御法開発への展開が期待される。

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Published: 2024-01-30  

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