Dynamics of delivering aptamer targeted nano-drugs into cells

被引：0

作者：

Liu, Yulin ^{[1
]}

Yang, Yu ^{[1
]}

Zhang, Qingrong ^{[1
]}

Lu, Denghua ^{[1
]}

Li, Siying ^{[1
]}

Li, Junfeng ^{[1
]}

Yang, Guocheng ^{[1
]}

Shan, Yuping ^{[1
]}

机构：

[1] Changchun Univ Technol, Adv Inst Mat Sci, Sch Chem & Life Sci, Changchun 130012, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY B | 2021年 / 9卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Camptothecin (CPT) - Critical steps - Drug delivery system - Potential methods - Receptor-mediated endocytosis - Specific interaction - Therapeutic drugs - Tracing technique;

D O I：

10.1039/d0tb02527e

中图分类号：

TB3 [工程材料学]; R318.08 [生物材料学];

学科分类号：

0805 ; 080501 ; 080502 ;

摘要：

A targeted nano-drug delivery system has provided great potential and benefits to the diagnosis and therapy of cancers. Cell entry is a critical step for taking effect of the targeted nano-drug. In this report, the dynamics of delivering a single aptamer targeted polyamindoamine-camptothecin-AS1411 (PAMAM-CPT-AS1411) nano-drug into cells was investigated using a force tracing technique based on atomic force microscopy. The results show that the specific interaction of AS1411 and nucleolin, which is overexpressed on cancer cells, enhances the efficiency of the PAMAM-CPT-AS1411 cell entry. Moreover, the specific interaction induced receptor-mediated endocytosis prolongs the duration and decreases the speed of a single PAMAM-CPT-AS1411 cell entry, which is helpful to understand the targeted nano-drugs prolonging the therapeutic drug level. However, the required force for PAMAM-CPT-AS1411 cell entry is not changed. This report will provide a novel and potential method for achieving the precise dynamics of targeted nano-drug delivery.

引用

页码：952 / 957

页数：6

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