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2022 Fiscal Year Final Research Report

The Analysis of Intestinal, Oral, and Nasal Bacterial Flora of Chronic Active Epstein-Barr Virus Patients

Research Project

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Project/Area Number 20K08720
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 54010:Hematology and medical oncology-related
Research InstitutionSt. Marianna University School of Medicine

Principal Investigator

ARAI AYAKO  聖マリアンナ医科大学, 医学部, 教授 (70359678)

Co-Investigator(Kenkyū-buntansha) 須田 亙  国立研究開発法人理化学研究所, 生命医科学研究センター, 副チームリーダー (20590847)
吉森 真由美  東京医科歯科大学, 大学院医歯学総合研究科, 日本学術振興会特別研究員 (20816053)
澤田 めぐみ  東京家政大学, 家政学部, 教授 (30291339)
Project Period (FY) 2020-04-01 – 2023-03-31
Keywords慢性活動性EBウイルス感染症 / サイトカイン / EBウイルス / T細胞 / NK細胞 / リンパ増殖症
Outline of Final Research Achievements

We have completed the collection of stool samples from 10 patients with chronic active EBV infection (CAEBV). We analyzed the microbiota using a next-generation sequencer and in March and are currently analyzing their contents. We found that plasma levels of IL-1β and IFN-γ are biomarkers for vasculitis and disease activity, respectively in CAEBV. We also found that X concentration in plasma of CAEBV patients is significantly higher than that in healthy controls and correlates with disease activity; and that X receptor inhibitors contribute to suppression of CAEBV tumor cell growth and cytokine production. We have applied for an international patent, PCT for the above results as "Method for Detection of Chronic Active Epstein-Barr Virus Infection (CAEBV)".

Free Research Field

血液内科学

Academic Significance and Societal Importance of the Research Achievements

CAEBV発症の背景に存在する後天性の免疫異常の原因として細菌叢の異常が明らかになれば未解明であった病態解明につながり得、学術的意義は大きい。CAEBVに根治をもたらし得る薬剤は開発されていない。この研究で同定された病態に関与する複数のサイトカインと、その伝達する細胞内シグナリングにはいずれも阻害薬が存在し治療薬候補になり得、社会的意義も多い。

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Published: 2024-01-30  

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