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腹腔内転移性がんに対する新しい治療戦略として圧縮された腹腔内冷気プラズマ
Tianhao Min1, Bo Zhang2, Kaijie Ren1
1Department of Surgical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China.
Journal of advanced research
|August 27, 2025
まとめ
圧縮された腹腔内冷大気プラズマ (PICAP) は,薬の分布と浸透を向上させることで,腹腔内転移の治療に新しいアプローチを提供します. この革新的な治療法は 腫瘍の進行を著しく抑制し 転移を防ぐ可能性を示しています
科学分野:
- 腫瘍学
- 生物医学工学
- プラズマ医学
背景:
- 腹腔内転移性がん (PMC) は,腹腔内プラズマバリアと不均等な薬物の分布により,治療上の課題を提示する.
- CRS+HIPECのような現在の治療法では 合併症の発生率が高く PIPACの浸透率は最適以下です
- 冷たい大気性プラズマ (CAP) は,反応性酸素と窒素種 (RONS) による腫瘍アポトーシスの有望性を示しているが,腹膜内への適用は未調査である.
研究 の 目的:
- 圧縮された腹腔内冷大気プラズマ (PICAP) を開発し,CAPを圧縮された浸透と統合する.
- 内治療の限界を克服する 内治療の限界を克服する 内治療の限界を克服する 内治療の限界を克服する
- 腹膜転移に対する PICAPの治療効果と予防効果を評価する.
主な方法:
- in vitro 腹膜モデルとネズミの腹膜転移モデル (大腸がんと卵巣がん) を用いた.
- PICAP,PIPAC,およびHIPECの間の透過性と有効性の比較が行われました.
- PICAP治療後のマウスの腫瘍負荷,アポトーシス,ROSレベル,およびミトコンドリア機能を分析した.
主要な成果:
- PIPACとHIPECと比較して,PICAPは全厚さの腹腔内浸透を in vitroで示した.
- in vivoでは,PICAPはアシテス,腫瘍負荷,およびマウスモデルでの生存期間を大幅に減少させた.
- PICAPはミトコンドリア機能障害を誘発し,アノイキの抵抗を抑制し,予防治療で100%の生存率を達成した.
結論:
- PICAPは,圧力を加えたRONS浸透とミトコンドリアのアポトーシスを通して,腹腔内伝達障壁を効果的に克服します.
- この治療は腹腔内転移の進行を有意に抑制し,予防的可能性を示しています.
- PICAPは,物理的および生化学的効果を組み合わせることで,PMCの優れた治療戦略を提供します.
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