刺激反应性蛋白质-染色体结合物的超分子组合和触发蛋白质递送
Rajesh Khamrui1, Krishna Dan1, Suhrit Ghosh1
1School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, India.
Bioconjugate chemistry
|September 3, 2025
概括
这项研究开发了一种用于向癌症治疗的新型蛋白质-超分子结合物. 结合物自组合,并在癌细胞内释放活性蛋白质,通过反应性氧物种选择性诱导细胞死亡.
科学领域:
- 生物结合化学
- 纳米医学
- 癌症治疗方法
背景情况:
- 蛋白质疗法为疾病提供了有效的治疗选择.
- 开发有效和有针对性的蛋白质输送系统仍然是一个挑战.
- 治疗蛋白质的控制释放对于疗效和安全至关重要.
研究的目的:
- 合成和描述一种用于向癌细胞的新型蛋白质-超分子结构指导单元 (SSDU) 结合物.
- 研究治疗蛋白质的自我组合,细胞内传递和氧化还原反应释放.
- 评估结合剂对癌细胞的选择性细胞毒性.
主要方法:
- 通过氧化还原反应链接器将酶 (LYS) 与二胺 (NDI) 结合.
- 对LYS-NDI结合物的表征及其自组合成纳米粒子.
- 细胞吸收,由谷氨 (GSH) 触发的蛋白质释放和癌细胞活性的体外研究.
- 对癌细胞中反应性氧物种 (ROS) 的产生进行评估.
主要成果:
- 通过控制SSDU加载成功合成LYS-NDI结合物.
- 在水中自发形成稳定的近球形纳米粒子 (~90 nm).
- 在GSH的存在下从纳米颗粒中释放活性LYS.
- 在癌细胞中增强和选择性细胞吸收结合物.
- 通过ROS生成诱导的显著癌细胞死亡.
结论:
- 开发的LYS-NDI结合物作为一个自组装的纳米载体,用于向蛋白质的输送.
- 氧化还原反应结合剂可控制癌细胞内活性溶酶的释放.
- 这种方法显示出强大而有选择性的癌细胞杀伤,突出显示了其治疗潜力.
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