A Mechanism of Cancer Cell Cytotoxicity of Near-Infrared Photoimmunotherapy

  • Sato K
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Abstract

要 旨 Near-Infrared photoimmunothreapy(NIR-PIT)は,がん細胞表面の抗原に特異的な抗体に 近赤外線に反応する probe をつけ,局所的に近赤外線を当てる事で治療を行う,次世代の革新的癌治療である.本研究は,probe(化学)と抗体 (生物学,医学,薬学)を至適条件下で conjugation し薬剤化し(conjugation chemistry)さらに近赤外光線(光学・物 理学)を加えた治療法を行う学際的な治療法である.革新的なターゲット局所治療として,高い評価を得ており,現 在国際 Phase III 試験が既に始まっており, (LUZERA-301) ,数年以内の認可が期待される.しかしながら,NIR-PIT の詳しい細胞死のメカニズムはこれまで良くわかっていなかった.本総説では,NIR-PIT の概要と,今回明らかにし た,新しい光細胞死の機序について概説する. キーワード:近赤外光線免疫療法,光化学反応,質量分析,ナノイメージング,AFM Abstract Near-infrared photoimmunotherapy (NIR-PIT) is a recently developed next-generation cancer photo-target therapy that combines the specificity of intravenously injected antibodies for targeting tumors with toxicity induced by photoabsorber (IR700) after exposure to NIR-light. NIR-PIT is realized its multidisciplinary method with the combination of the technologies in chemistry, biolody, pharmacology and physics. Presently, NIR-PIT is under the international phase III clinical trial against locoregional, recurrent head and neck SCC (HNSCC) (LUZERA-301, NCT03769506) with FDA fast track approval and expected to be clinically licensed in a few years. However, the precise mechanism of NIR-PIT is still unknown. In this review, the scheme of NIR-PIT and the mechanism of NIR-PIT is outlined.

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Sato, K. (2020). A Mechanism of Cancer Cell Cytotoxicity of Near-Infrared Photoimmunotherapy. Nippon Laser Igakkaishi, 41(2), 104–109. https://doi.org/10.2530/jslsm.jslsm-41_0020

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