细胞内化和退出行为Zwitterionic四臂星形聚合物的细胞内化和退出行为
Yuta Yoshizaki1, Tomohiro Konno1
1Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8578, Japan.
Molecules (Basel, Switzerland)
|June 10, 2023
概括
星形脂聚合物 (4armPMB) 与线性聚合物类似,表现出快速的细胞吸收和释放,没有观察到细胞毒性. 这种架构为生物材料应用提供了独特的细胞相互作用动态.
科学领域:
- 生物材料科学 生物材料科学
- 聚合物化学 聚合物化学
- 细胞生物学 细胞生物学
背景情况:
- 基脂聚合物 (PMB) 是两性和生物相容的,以细胞膜透而闻名.
- 传统的线性PMB是通过自由基聚合合成的.
- 分支聚合物架构,就像星形聚合物一样,表现出独特的特性,例如由于排除体积效应而改变粘度.
研究的目的:
- 通过原子转移激素聚合 (ATRP) 合成一个四臂星形PMB (4armPMB).
- 为了比较分支 (4armPMB) 与线性PMB架构对细胞毒性和细胞吸收的影响.
- 研究受聚合物架构影响的细胞内化和退出行为.
主要方法:
- 使用ATRP (一种活激素聚合技术) 合成4臂星形PMB (4armPMB) 和线性PMB.
- 对两种聚合物类型的水溶性进行验证.
- 使用烯光学评估聚合物聚合物的行为.
- 对细胞毒性和细胞膜损伤的评估.
- 细胞吸收率和反向扩散率的量化.
主要成果:
- 无论是4armPMB还是线性PMB都成功合成,并证实它们是水溶性的.
- 聚合物架构没有影响聚合物聚合物的溶液行为.
- 无论是4armPMB还是线性PMB都没有表现出细胞毒性或引起细胞膜损伤.
- 两种聚合物架构在短时间化后都显示出类似的细胞透率.
- 4armPMB与线性PMB相比,从细胞反向扩散的速度明显更快,这表明细胞快速退出.
结论:
- 该研究使用ATRP成功合成了水溶性四臂星形和线性PMB.
- 这两种聚合物架构都是细胞兼容的,不会损害细胞膜.
- 虽然细胞吸收率相似,但与线性对应物相比,星形结构促进了更快的细胞退出 (反向扩散).
- 4armPMB独特的细胞内化和退出动态表明了定制生物材料设计的潜力.
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