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长长的颗粒显示了侵袭性癌细胞的偏好吸收
Talya Cohen1, Chalom Zemmour1, Ora T Cohen1
1Institute for Drug Research, The School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112001, Israel.
Nanomaterials (Basel, Switzerland)
|December 17, 2024
概括
长长的药物载体被攻击性癌细胞优先吸收,改善向癌症治疗. 这项研究强调了粒子形状如何影响黑色素瘤细胞的细胞吸收和药物递送效率.
科学领域:
- 生物医学工程 生物医学工程
- 材料科学 材料科学 材料科学
- 癌症治疗 癌症治疗
背景情况:
- 药物载体的细胞吸收对于向癌症治疗至关重要.
- 粒子物理性质,如形状,可以影响细胞相互作用和药物递送效率.
- 了解对粒子吸收的机械影响可以提高治疗选择性.
研究的目的:
- 为了研究长长的粒子被攻击性癌细胞优先吸收,而不是正常细胞的假设.
- 为了比较延长与球形药载体在向不同癌细胞攻击性水平提供化疗中的疗效.
- 探索颗粒面积比在药物输送应用的细胞偏好中的作用.
主要方法:
- 通过热诱导软化和基于溶剂的方法合成长长的聚乙烯 (PS) 颗粒 (0.8-2.4μm).
- 在攻击性 (A375+) 和不那么攻击性 (A375-) 人类黑色素瘤细胞中评估了延长型与球形PS粒子的细胞吸收.
- 开发了长长的,含有帕克利塔塞尔的,可生物降解的多乳糖合糖酸 (PLGA) 颗粒,用于药物输送评估.
主要成果:
- 热诱导的方法比以溶剂为基础的方法 (SD=0.91) 产生了更多同质的长长颗粒 (SD=0.42).
- 激进的A375+细胞在延长PS粒子吸收方面比球形细胞增加了10%,而不那么激进的A375-细胞则减少了25%.
- 与球形颗粒不同,长长的药物载荷PLGA颗粒在攻击性癌细胞中表现出显著增强的细胞毒性作用,与攻击性较低的细胞相比.
结论:
- 颗粒的形状显著影响细胞吸收,长长的颗粒显示出更具侵略性的癌细胞的优先吸收.
- 定制粒子物理特性,特别是面积比,可以提高癌症药物递送系统的选择性.
- 这些发现为开发先进的向癌症疗法提供了有希望的策略,提高了疗效,减少了非向效应.
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