对于初级中枢神经系统淋巴瘤组合治疗,向大脑输送了氧化还原反应性莱纳利多米德前药物加上甲状腺素
Hengyu Liu1, Tianqi Nie2, Xiao Duan3
1Department of Hematology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China.
概括
一种新型纳米前药物向大脑输送lenalidomide和methotrexate,通过绕过血脑屏障并抑制瘤生长,有效地治疗中枢神经系统原发性淋巴瘤 (PCNSL).
科学领域:
- 神经瘤学神经瘤学
- 纳米医学是一种纳米医学.
- 药物运输 药物运输 药物运输
背景情况:
- 初级中枢神经系统淋巴瘤 (PCNSL) 是一种高度攻击性的脑瘤,由于药物透性差,治疗选择有限.
- 目前用于PCNSL的化疗受到大脑组织内药物分配不足的阻碍.
研究的目的:
- 开发一种可氧化还原反应的纳米前药物,用于增强莱纳利多米德 (LND) 和甲酸甲 (MTX) 的大脑输送.
- 通过皮下给药来评估同时输送的LND和MTX纳米颗粒 (MTX@LNDNP) 对于PCNSL治疗的疗效.
主要方法:
- 开发一种二硫化物-莱纳利多米德-甲基聚乙烯甘醇 (LND-DSDA-mPEG) 氧化还原反应原药.
- 在小鼠中使用了皮下异种移植和内瘤模型.
- 使用包括MRI在内的技术评估了纳米粒子分布,瘤抑制和转移预防.
主要成果:
- 在皮下和内模型中,MTX@LND NPs显著抑制了PCNSL的生长.
- 通过降低CD31和VEGF表达的调节,同时分娩有效地预防了肝转移.
- 红氧反应性MTX@LNDNP的皮下施用成功绕过了血脑屏障,分布在脑组织中并抑制瘤生长.
结论:
- 开发的可生物降解,生物相容和氧化还原反应的纳米前药物可通过淋巴血管系统向大脑提供LND和MTX.
- 这种方法为PCNSL的临床治疗提供了一个有希望和可行的策略.
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