可调节的纳夫他林胺基化细胞内纳米聚合物会在三阴性乳腺癌细胞中触发ROS介导的DNA损伤和亡
Arpita Hota1, Aakash Ravikant Likhar2, Sadiya Tanga1,2
1Bose Institute, Department of Biological Sciences, EN 80, Sector V, Bidhannagar, Kolkata 700091, West Bengal, India. deepak.asthana@ashoka.edu.in.
Nanoscale
|January 28, 2026
概括
含有氨基酸链接剂的新型纳夫他胺二聚体通过诱导细胞聚合和编程细胞死亡,对三阴性乳腺癌 (TNBC) 具有强烈的抗癌活性. 性进一步增强了这种效果,为新型TNBC治疗提供了潜力.
科学领域:
- 药用化学 医学化学
- 材料科学 材料科学 材料科学
- 癌症生物学 癌症生物学
背景情况:
- 纳夫塔利米德衍生物正在探索治疗应用.
- 开发针对三阴性乳腺癌 (TNBC) 的向疗法仍然是一个重大挑战.
- 分子聚合特性影响药物的有效性和细胞吸收.
研究的目的:
- 为了合成和表征具有多样化的链接器化学的新型纳夫他胺类同型分子.
- 研究链接器功能对水性介质和细胞环境中的分子聚合的影响.
- 为了评估这些衍生物对TNBC细胞的抗癌活性.
主要方法:
- 合成具有不同链接器功能 (带正电荷,基于氨基酸) 的纳夫他林胺类同型分子.
- 使用可变温度NMR,粉末XRD,SEM和TEM等技术对聚合性质的表征.
- 细胞活动的评估,包括聚合,细胞毒性,迁移抑制,活性氧物种生成,DNA损伤和MDA-MB-231 TNBC细胞中的亡诱导.
主要成果:
- 带有正电荷连接器的纳夫塔利米德衍生物表现出纳米聚合,但缺乏细胞活性.
- 氨基酸注入的纳夫他林胺衍生物显示出显著的细胞聚合,增强的排放 (AIE) 和延长的光寿命.
- 这些衍生物显示出显著的抗癌活性,受损的迁移,并诱导TNBC细胞的编程细胞死亡.
- 氨基酸侧链中的奇拉性通过增加ROS,DNA损伤和酶活性,进一步提高了抗癌疗效.
结论:
- 有氨基酸链接剂的纳夫塔利胺基同位素有效地通过聚合诱导机制准TNBC细胞.
- 聚合的分子基础涉及π-π堆叠,导致线状结构和纳米聚合物.
- 化纳夫他胺衍生物显示出增强的细胞毒性,这表明它有可能成为抗化学性TNBC的新疗法.
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