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临床相关的氧化铁纳米颗粒对巨细胞两极分化,瘤生长和瘤微环境调节的影响

Karolin Roemhild¹, Yanchen Li², Roman A Barmin³

¹Institute of Experimental Molecular Imaging, University Hospital RWTH Aachen, Aachen, Germany; Institute of Pathology, University Hospital RWTH Aachen, Aachen, Germany.

Journal of controlled release : official journal of the Controlled Release Society

|February 15, 2026

概括

超偏磁铁氧化物纳米粒子 (SPION) 没有抑制三阴性乳腺癌的生长,也没有改变瘤微环境 (TME). 这些发现表明,SPION更适合用于巨细胞成像,而不是用于癌症治疗.

科学领域:

纳米医学是一种纳米医学.
癌症生物学癌症生物学
免疫学免疫学免疫学

背景情况:

巨细胞在瘤微环境 (TME) 中至关重要,是纳米医学的目标.
超偏磁铁氧化物纳米粒子 (SPION) 正在研究由于铁在巨分化中的作用而产生抗瘤作用.

研究的目的:

评估Feraheme和Synomag SPION是否可以调节巨细胞极化,重塑TME,抑制瘤生长,并改善药物输送.
评估SPION作为抗瘤治疗药物和TME调节器的疗效.

主要方法:

在4T1三阴性乳腺癌模型中使用Feraheme和Synomag SPION进行了体外和体内研究.
对巨细胞极化标记物,TME组成,瘤生长,血管化和纳米载体输送的分析.

主要成果:

SPION被巨细胞有效地内化,但在体外仅对极化标记物产生了适度的影响.
在体内,Feraheme增加了内铁,但没有显著影响瘤生长,巨细胞分极,T细胞子集或TME组成.
费拉希姆的预治疗没有改变瘤血管化,原蛋白含量或纳米载体输送.

结论:

包括Feraheme和Synomag在内的SPION作为抗瘤治疗药物或TME原始剂是无效的.
结果支持使用SPION作为对巨细胞向成像应用的追踪剂.

关键词:

铁的代谢铁的代谢铁氧化物纳米粒子铁氧化物纳米粒子巨细胞的两极分化磁共振成像技术磁共振成像技术间是一个间.瘤微环境是一个微环境.

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