通过体介导的合聚合物/蛋白质复合体内细胞内蛋白质活性增强的内细胞内细胞内细胞内细胞质
Golam Sabbir Sarker1, Carlos R Romagosa1, Joong Ho Moon1
1Department of Chemistry and Biochemistry, Florida International University, 11200 SW 8th St, Miami, FL, 33199, USA.
Macromolecular bioscience
|February 6, 2025
概括
结合聚合物 (CP) 有效地将蛋白质输送到癌细胞中. 一种新型的CP载体,具有甲基基基胺 (Ph-CG) 末组,可实现非溶酶体蛋白质的输送,抑制癌细胞活力.
科学领域:
- 聚合物化学 聚合物化学
- 生物技术是生物技术.
- 癌症研究 癌症研究
背景情况:
- 结合聚合物 (CPs) 具有疏水的骨干和极端侧链,促进细胞吸收.
- 内细胞通路是细胞进入的常见途径.
- 治疗性蛋白质的有效细胞内传递仍然是一个挑战.
研究的目的:
- 研究电荷中性结合聚合物 (CP) 作为细胞内蛋白质递送的载体的潜力.
- 评估一种新型的CP的有效性,该CP与基甲基基基 (Ph-CG) 组功能化,用于将核糖酶A (RNase A) 输送到癌细胞中.
- 了解细胞进入机制及其对癌细胞生存能力的影响.
主要方法:
- 一种带电中性结合聚合物 (CP) 的合成,具有疏水的骨干和极端侧链,结尾为甲基化瓜尼丁 (Ph-CG) 组.
- 核糖核酶A (RNase A) 与合成的CP的复合.
- 使用模型癌症细胞系进行细胞吸收研究.
- 对细胞进入途径 (非溶解体) 的分析.
- 使用不同度的CP-RNase A复合物的细胞活力抑制的评估.
主要成果:
- CP有效地与RNase A.形成了复合体.
- 在模型癌细胞的细胞质中实现了RNase A的高效输送.
- 细胞进入通过非溶解体通路发生.
- 观察到度依赖的癌细胞活力的抑制,半最大有效度 (EC50) 为0.07μg/mL.
- Ph-CG终端组对于高效的蛋白质复合和细胞进入至关重要.
结论:
- 结合聚合物 (CPs) 是细胞内蛋白质输送的有希望的载体.
- CP载体的特定终端功能组显著影响蛋白质递送效率和机制.
- 开发的CP系统通过向癌细胞输送细胞毒性蛋白质,证明了针对癌症治疗的潜力.
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