操纵人环素以更深入地透组织,并对糖解组织产生影响
Erik R Abels1, Esther Ter Linden1, Jos H T Rohling1
1Department of Cell and Chemical Biology and Oncode Institute, Leiden University Medical Center, Leiden 2300 RC, The Netherlands.
概括
药物透到瘤是有效性的关键. 抗癌药物在酸性瘤条件下更深入,但这可能会降低疗效,这表明修改可以改善癌症治疗.
科学领域:
- 药理学
- 癌症生物学
- 提供药物
背景情况:
- 药物透到目标组织对于治疗疗效至关重要.
- 了解像瘤这样复杂的生物环境中的药物扩散仍然是一个挑战.
- 人环素是重要的化疗剂,但它们的组织透程度尚不完全清楚.
研究的目的:
- 为了研究抗癌药物的组织透动态.
- 确定药物透深度的物理化学特性.
- 探索瘤微环境条件如何影响药物输送和疗效.
主要方法:
- 使用基于细胞的球形模型使用内在光可视化药物命运.
- 在模仿生理环境的不同pH条件下检查了人环素的透率.
- 评估了一系列人环素变体,以将化学特性与透深度相关联.
主要成果:
- 人环素具有中等的疏水性,可以穿透细胞外层.
- 酸性条件增强了球体透,但减少了细胞进入和细胞毒性.
- 摩尔折射率,拓极表面积和水溶性是透深度的关键决定因素.
结论:
- 瘤微环境的酸性和甘油性条件可能会限制环素的透,并导致耐药性.
- 根据已识别的物理化学特性修改人环素可以提高药物向深层瘤的输送.
- 这项研究为改进以人环素为基础的疗法提供了洞察力,
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