对于聚合物外微气泡的脑瘤毒性概况的治疗方法
Gaio Paradossi1, Fabio Domenici1, Francesco Riccitelli1
1Dipartimento di Scienze e Tecnologie Chimiche, Università degli Studi di Roma Tor Vergata, 00133 Roma, Italy.
ACS omega
|February 17, 2025
概括
结合成像和化疗的新型微泡 (MB) 显示出恶性质瘤治疗的前景. 低剂量给老鼠的治疗证明了安全性,为未来在脑瘤治疗中的疗效研究铺平了道路.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术纳米技术
- 在瘤学瘤学.
背景情况:
- 恶性质质瘤带来了重大的治疗挑战.
- 结合成像和药物输送的治疗神经设备提供了潜在的优势.
- 新型微气泡 (MBs) 已开发用于多式联网应用.
研究的目的:
- 评估新型聚乙醇微气泡 (PVA MBs) 的潜在毒性,这些微气泡是为脑瘤治疗而设计的.
- 在大鼠模型中评估近红外 (NIR) 成像和temozolomide (TMZ) 药物输送的MBs的安全性.
主要方法:
- 鼠被静脉注射裸体MB,使用NIR成像和向配体的MB (MB-C790-RGD),以及使用成像,向和化疗的MB (MB-C790-RGD-TMZ).
- 给出了两个剂量,在注射后10分钟和7天评估了毒性.
- 评估包括死亡率,血液学参数,器官重量和组织病理学.
主要成果:
- 在为期7天的研究期间,在任何组中都没有观察到死亡率.
- 高剂量裸体MB和MB-C790-RGD组显示血红蛋白/血红素的降低和甘油三的增加,与大/肝脏有关.
- 组织病理学揭示了高剂量动物在7天后的治疗相关的炎症.
结论:
- 在老鼠中,低剂量给药的新型疗效微气泡似乎是安全的.
- 这些发现支持在恶性质瘤治疗临床应用之前继续进行疗效研究.
- 这项技术有可能改善脑瘤手术和治疗.
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