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癌細胞の増殖活動に対する50Hz極低周波磁場曝露の効果:インビトロ研究

Chandra Kant Singh Tekam¹, Pooja Kumari¹, Ajay Kumar Sahi¹

¹Tissue Engineering and Biomicrofluidics Laboratory, School of Biomedical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India.

Radiation protection dosimetry

|September 3, 2025

まとめ

定期的な低強度電磁場曝露は癌治療に有望である特に,50 Hzの極低周波パルス電磁場 (ELF-PEMF) は,A549癌細胞の増殖と形態をインビトロで変化させた.

科学分野:

バイオ物理学
細胞生物学
癌研究

背景:

医学界では低強度電磁場への曝露を生物医学的な応用として研究しています
がん治療の非侵襲的な方法は需要があります.

研究の目的:

50Hzの極低周波パルス電磁場 (ELF-PEMF) が癌細胞系に及ぼす影響を調査する.
細胞増殖と形態学に対する ELF-PEMFの影響を評価する.

主な方法:

磁場曝露のために単軸ヘルムホルツコイル室を使用した.
インビトロ試験では,がん細胞系 (A549, HepG2, MCF-7) が50 HzのELF-PEMF (1-3 mT) に1日1時間未満の期間で暴露された.
細胞の増殖,形態,アクチン細胞骨格,細胞核を分析した.

主要な成果:

A549細胞では,細胞増殖と形態の有意な変化が観察されました.
A549細胞は,アクチン細胞骨格が変化し,コントロールと比較して細胞核が縮小した.
HepG2およびMCF-7細胞は実験条件下では影響を受けなかった.

結論:

50HzのELF-PEMF曝露 (<1時間/日) は,A549細胞の増殖を著しく変化させ,形態的変化を引き起こす.
この非侵襲的な方法は進行した癌の治療法として可能性を秘めています
患者とがんの特異性に基づいて,最適化された暴露プロトコルが臨床医に利益をもたらす可能性があります.

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