基于氨酸和奇托桑的氨酸衍生物自组合聚合物用于乳腺癌治疗
Kun Chen1, Xin Zhu2, Ruiqin Sun3
1Academy of Chinese Medicine Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, China; Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan University of Chinese Medicine, Zhengzhou 450046, China.
International journal of biological macromolecules
|August 15, 2024
概括
研究人员开发了新的纳米聚合物 (QDT/HEP/CS NAs),以增强天然化合物烯酸的抗癌作用. 这些纳米聚合物提高了溶解性和生物可用性,在临床前研究中显示出显著的抗乳腺癌活性.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术纳米技术
- 药理学 药理学是指药理学的学科.
背景情况:
- 类酸是一种天然产品,具有抗乳腺癌的特性,但具有较差的水溶性和较低的生物利用性.
- 这些局限性阻碍了其用于乳腺癌治疗的临床应用.
研究的目的:
- 为改善乳腺癌治疗合成和表征新型烯酸四级 (QDT) 纳米聚合物.
- 评估开发的纳米聚合物的体外和体内抗癌疗效和生物安全性.
主要方法:
- 通过静电相互作用合成QDT/氨酸/花素纳米聚合物 (QDT/HEP/CS NAs).
- 纳米聚合物对泽塔潜力,粒子大小,形状和药物负载的表征.
- 在实验室中评估乳腺癌细胞中诱导亡的情况.
- 在4T1瘤携带小鼠体内抗瘤疗效研究.
主要成果:
- QDT/HEP/CS NAs表现出适当的物理化学特性 (负泽塔潜力,~150 nm大小,条形状,36%的药物负载) 和稳定性.
- 从纳米聚合物中持续释放QDT,通过降低线粒体膜潜力,诱导乳腺癌细胞的亡.
- 在体内研究表明,QDT/HEP/CS NAs的抗瘤功效增强,归因于通过EPR效应和对亡标记物 (caspase-3,caspase-9,细胞染色体C) 的上调调节的瘤积累.
- 纳米聚合物显著改善了烯酸的生物安全性和生物相容性.
结论:
- QDT/HEP/CS NAs 是一个有前途的策略,可以克服油酸的局限性.
- 这种纳米配方提供了增强的抗瘤活性,有利的生物分布,以及乳腺癌治疗的良好生物相容性.
- 该开发提供了一种安全有效的方法,用于在癌症治疗中利用传统中医成分.
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