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2022 Fiscal Year Final Research Report

Development of an evaluation system for skin-specific hypersensitivity risk compounds based on structural characteristics of HLA polymorphisms

Research Project

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Project/Area Number 19H03386
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 47060:Clinical pharmacy-related
Research InstitutionChiba University

Principal Investigator

Ito Kousei  千葉大学, 大学院薬学研究院, 教授 (30323405)

Co-Investigator(Kenkyū-buntansha) 星野 忠次  千葉大学, 大学院薬学研究院, 准教授 (90257220)
Project Period (FY) 2019-04-01 – 2023-03-31
KeywordsHLA
Outline of Final Research Achievements

Studies using HLA polymorphism-transgenic mice have provided important insights into the disease mechanisms of abacavir hypersensitivity and flucloxacillin hepatotoxicity. In particular, in the abacavir hypersensitivity model, suppression of immune activation prevents the onset of the disease, which may explain the absence of cases in HLA polymorphism carriers in the clinical setting. In vitro/in silico analysis showed that there may be characteristic differences in the maturation process in the endoplasmic reticulum between risk and non-risk HLA polymorphisms. The in vitro/in silico analysis showed that there may be characteristic differences in the maturation process in the endoplasmic reticulum between risk and non-risk polymorphisms.

Free Research Field

医薬品安全性学

Academic Significance and Societal Importance of the Research Achievements

前年度までの研究から、皮膚細胞ではアバカビル(ABC)がB*5701多型特異的に小胞体ストレス(ERストレス)を引き起こすことがわかっている。ERストレス発生 に組織選択性があるか知るため、ABCの経口投与後、組織を単離してERストレスマーカーの発現を調べた。その結果、皮膚ではERストレスが生じていることが確認 された一方、肝臓、腎臓、脾臓ではERストレスが起こっていないことがわかった。厳密には他の組織も網羅する必要があるが、ERストレスには一定の組織選択性 があることが示された。

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Published: 2024-01-30  

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