甘油酸-脂质框架纳米车载加载三化物用于联合免疫化学疗法
Ziyi Xu1, Yu Huang1, Yihan Wu1,2
1State Key Laboratory of Southwestern Chinese Medicine Resources, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
ACS applied materials & interfaces
|August 24, 2023
概括
一种新型的糖酸 (GL) - 脂质混合纳米平台有效地联合提供三酸 (TP) 用于增强肝细胞癌 (HCC) 治疗. 这种纳米载体改善了药物输送,提高了抗瘤疗效,并对抗瘤免疫抑制.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术 纳米技术
- 癌症治疗 癌症治疗
背景情况:
- 联合免疫化学疗法在瘤治疗中具有优势,但有效地将药物联合输送到瘤组织仍然是一个挑战.
- 甘酸 (GL) 和三酸 (TP) 具有抗癌特性,但它们的联合治疗潜力受到传递系统的限制.
- 开发有效的纳米载体,同时提供多种治疗剂,对于改善癌症治疗结果至关重要.
研究的目的:
- 设计和制造一种新的糖酸 (GL) -脂质混合纳米平台,用于共同输送三化物 (TP).
- 评估开发的纳米平台的物理化学性质,体外*抗癌疗效和体内*抗瘤性能.
- 研究纳米载体在克服瘤免疫抑制和增强瘤组织中药物积累方面的潜力.
主要方法:
- 基于GL的脂质纳米颗粒 (GLLNP) 的制造,加载了三化物 (TP/GLLNP),使用一个简单的策略.
- TP/GLLNP的特征,包括颗粒大小,药物负载,稳定性,膜流动性和奥普索宁蛋白吸收.
- 细胞吸收,细胞毒性和HepG2细胞的细胞亡诱导的评估 *in vitro*.
- 评估免疫调节效应,特别是巨细胞两极分化 (M2到M1表型).
- 在携带瘤的小鼠模型中 * in vivo * 药理动力学,瘤保留,积累和抗肝细胞癌 (HCC) 疗效的研究.
主要成果:
- 制造的TP/GLLNP表现出与常规脂质体相比的药物负载和稳定性,但具有增强的膜流动性和降低的松素吸收.
- 与带TP的脂质体 (TP/Lipo) 相比,TP/GLLNP在HepG2细胞中显著增加了细胞吸收,细胞毒性和亡诱导.
- GLLNP有效地促进了与瘤相关的巨细胞的M2到M1两极分化,改善了瘤免疫抑制.
- *体内*研究显示,GLLNP在瘤组织中的保留和积累增强,从而产生协同作用的抗HCC疗效.
结论:
- 开发的GL-脂质混合纳米平台为GL和TP的联合输送提供了有效的策略,解决了双药输送的挑战.
- TP/GLLNP表现出优越的抗癌特性和免疫调节作用,为肝细胞癌治疗提供了有前途的方法.
- 这项研究提出了一个鼓舞人心的策略,用于设计新的纳米载体,用于联合化疗-免疫疗法,在治疗各种癌症方面有潜在的应用.
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