在3D多层肠道体外模型中,mezalazine装载的奇托-酸纳米颗粒的表面电荷行为
Amanda Letícia Polli Silvestre1, Juliana Viegas2, Ana Margarida Carvalho3
1School of Pharmaceutical Sciences - São Paulo State University (UNESP), Araraquara-São Paulo, Brazil.
Carbohydrate polymers
|January 29, 2026
概括
携带梅萨拉 (MLZ) 的纳米颗粒对炎症性肠病 (IBD) 是有前途的. 表面电荷和聚合物组成影响纳米粒子的行为,改善药物输送和减少炎症标记物.
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
- 药理学 药理学是指药理学的学科.
背景情况:
- 由于传统疗法的局限性,炎症性肠病 (IBD) 需要有效的药物输送.
- 梅萨拉 (MLZ) 溶解性和透性差,阻碍其在治疗IBD中的有效性.
- 纳米粒子 (NP) 系统为IBD的向药物输送提供了潜力.
研究的目的:
- 调查聚合物组成和表面电荷对装有MLZ的NP对IBD治疗的影响.
- 在炎症肠道模型中评估NP运输,粘膜粘合和细胞相互作用.
- 评估带有MLZ的NP的抗炎作用.
主要方法:
- 酸盐 (CS) 和酸盐 (SA) 用于制备带有MLZ的阴离子和阴离子NP.
- NP的特点是大小,泽塔潜力 (ZP),形态和稳定性.
- 用肠道炎症的3D体外模型来测试NP的性能.
主要成果:
- NP在277-410nm之间,ZP在+38mV到-30mV之间,稳定性很好.
- 富含SA的NP显示出更高的透性和更快的扩散,而富含CS的NP则表现出更大的粘膜粘附性.
- 这两种NP配方都显著降低了促炎性细胞因子水平.
结论:
- 纳米粒子表面电荷和聚合物组成在炎症肠道模型中极大地影响它们的行为.
- 富含CS的NP显示出局部IBD治疗的潜力,这是由于增强的粘膜粘附.
- 这些发现为开发用于IBD管理中的直肠给药纳米载体提供了洞察力.
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