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2022 Fiscal Year Final Research Report

Establishment of an evaluation system for residual viral reservoirs in HIV-infected individuals and discovery of clinical biomarkers

Research Project

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Project/Area Number 20K17480
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 54030:Infectious disease medicine-related
Research InstitutionNational Center for Global Health and Medicine

Principal Investigator

Matsuda Kouki  国立研究開発法人国立国際医療研究センター, エイズ治療・研究開発センター, リサーチ・レジデント (70796193)

Project Period (FY) 2020-04-01 – 2023-03-31
KeywordsHIV潜伏感染 / HIV cure / HIVリザーバー / HIV感染症 / バイオマーカー
Outline of Final Research Achievements

In this study, we established a quantitative evaluation system for peripheral residual provirus in HIV-infected patients on cART treatment and discovered biomarkers correlated with viral reservoir size. 20 HIV-infected patients were divided into two groups based on the level of elevated HIV-mRNA expression after stimulation, and various potential biomarkers were analyzed. High-sensitivity HIV reservoir analysis using ddPCR also revealed that these factors correlated with intact HIV reservoir size. These biomarkers were suggested as potential targets for treatment of latent HIV infection.

Free Research Field

感染症内科学

Academic Significance and Societal Importance of the Research Achievements

HIV潜伏感染細胞(リザーバー)の存在がHIV感染症根治の妨げとなっている。リザーバー細胞は一見すると正常な非感染細胞との見分けがつかず、プロウイルスDNAの有無でしか選別することができない。また、患者体内のリザーバーサイズや性質は異なると考えられている。本研究で見出されたバイオマーカーは簡便にリザーバー細胞のサイズを評価するための新たなツールとしてだけではなく、体内でのウイルスリザーバー形成ならびに潜伏感染機序の全容解明につながることが期待される。

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Published: 2024-01-30  

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