10nmの銀ナノ粒子のバッチ依存性肝胆毒性は,マウスの単発静脈注射後に発生した

Simone Canesi^1,2, Laura Sala^1,2, Marcella de Maglie²

¹Department of Veterinary Medicine and Animal Sciences, University of Milan, Via dell'Università 6, 26900 Lodi, Italy.

Nanomaterials (Basel, Switzerland)

|February 12, 2026

まとめ

銀ナノ粒子 (AgNPs) のバッチ変動は,マウスにおける毒性に影響を与えます. バッチ内のより小さなAgNPは,肝胆毒性の増加と相関しており,ナノ毒性学における厳格な特徴化の必要性を強調しています.

科学分野:

ナノ毒性学について
材料科学材料科学とは
バイオメディカルエンジニアリング

背景:

銀ナノ粒子 (AgNPs) は,抗微生物および生物医学的な利点を提供しています.
AgNPの毒性に関する懸念は存在し,in vivoデータは一貫していない.
AgNPのバッチ対バッチの変動性は,異なる毒性アウトカムを説明する可能性があります.

研究の目的:

10nm AgNPsにおけるバッチの変動が,in vivoの毒性に影響するかどうかを調査する.
AgNPの毒性プロファイルに対する物理化学変化の影響を評価する.

主な方法:

CD-1マウスは,3つのバッチから10nmAgNPを静脈内注射した.
銀のレベルはICP-MSを使用して定量化され,組織は組織病理学的評価を受けました.
自動メタログラフィと免疫光は,銀の分布と細胞の位置をマッピングしました.

主要な成果:

すべてのAgNPバッチは,ネクロシスと出血を含む,用量依存の肝胆毒性を誘発した.
バッチでより小さなAgNPの比率が高くなるのは,毒性の重度の増加と相関していた.
シルバーアグロメラートは,様々な細胞タイプ内で発見され,内部化と細胞毒性を示した.

結論:

些細な物理化学的変化,特にサイズ分布はAgNPのin vivo毒性に大きな影響を与えます.
ナノ粒子の厳格な特徴化は,再現可能なナノ毒理学研究にとって極めて重要です.
バッチの変動性を理解することは,生物医学分野におけるAgNPの安全な適用に不可欠です.

キーワード:

バッチ対バッチの変動性について in vivoの研究では,静脈内投与として投与する.マウスマウスマウスマウスマウス銀のナノ粒子は,毒性毒性毒性毒性毒性毒性

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