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2020 Fiscal Year Final Research Report

Exploration of a new biomarker for companion diagnostics of HPV-targeting cancer immunotherapy

Research Project

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Project/Area Number 18K09303
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56040:Obstetrics and gynecology-related
Research InstitutionNihon University

Principal Investigator

KAWANA Kei  日本大学, 医学部, 教授 (60311627)

Project Period (FY) 2018-04-01 – 2021-03-31
Keywords子宮頸癌 / 子宮頸部上皮内腫瘍 / ヒトパピローマウイルス(HPV) / 免疫療法 / コンパニオン診断 / HPVE7発現
Outline of Final Research Achievements

In this study, we aimed to search for biomarkers that would serve as companion diagnostics for the HPV16E7-expressing lactobacillus vaccine that is being developed as a cancer immunotherapy targeting HPV16 onco-protein E7. We thought that HPV16E7 expression level in the exfoliated cells collected from high-grade cervical intraepithelial neoplasia CIN2-3 could be the most promising marker. We here established an assay system to measure HPV16E7 expression in the lesion using RT-PCR. We will examine the usefulness of HPV16E7 expression as a companion diagnosis in ongoing investigator-initiated clinical trials.

Free Research Field

産婦人科・婦人科腫瘍学・癌治療

Academic Significance and Societal Importance of the Research Achievements

高度子宮頸部上皮内腫瘍CIN2-3に対する薬物療法は未だに未開発のアンメットニーズである。HPVには抗ウイルス薬は存在せず、現在、治療薬開発で最も有力な候補は免疫療法である。世界的に開発が進んでいる。免疫療法では有効例と無効例の差が大きい特徴があり、有効例選択の診断ツールの必要性が高く、その候補であるコンパニオン診断の測定系を開発したことは有意義である。

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Published: 2022-01-27  

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