A biocompatible betaine-functionalized polycation for coacervation.

A biocompatible betaine-functionalized polycation for coacervation.
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用于凝聚的生物相容性甜菜碱官能化聚阳离子。

DOI:
10.1039/c7sm01763d
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发表时间:
2018-01-17
期刊:
影响因子:
3.4
通讯作者:
Wang Y
Wang Y
中科院分区:
化学2区
文献类型:
--
作者:
Hwang MP ;Ding X ;Gao J ;Acharya AP ;Little SR ;Wang Y

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复合凝聚层的水性性质为各种治疗应用提供了生物学相关的背景。从这个意义上说,生物应用要求参与复杂凝聚的聚电解质具有相应水平的生物相容性。肝素和壳聚糖等天然聚电解质的持续开发强调了这一目标。在这里,我们设计了一种合成聚阳离子,其中甜菜碱与可生物降解的聚酯主链缀合。甜菜碱是一种天然存在的甲基化氨基酸,普遍存在于人血浆中。受到其广泛益处(包括但不限于抗炎、抗癌、抗菌、抗氧化、蛋白质稳定和心血管健康)的启发,我们的目标是赋予聚阳离子额外的功能,最终用于与肝素形成的复合凝聚层。我们报告了其体外和体内生物相容性、体外和体内对血管生成的影响、体外对微生物生长的影响以及与肝素形成复杂凝聚层的能力。
The aqueous nature of complex coacervates provides a biologically-relevant context for various therapeutic applications. In this sense, biological applications demand a corresponding level of biocompatibility from the polyelectrolytes that participate in complex coacervation. Continued development with naturally-occuring polyelectrolytes such as heparin and chitosan underscore such aims. Herein, we design a synthetic polycation, in which betaine is conjugated to a biodegradable polyester backbone. Betaine is a naturally-occuring methylated amino acid that is ubiquitously present in human plasma. Inspired by its vast range of benefits – including but not limited to anti-inflammation, anti-cancer, anti-bacterial, anti-oxidant, protein stabilization, and cardiovascular health – we aim to impart additional functionality to a polycation for eventual use in a complex coacervate with heparin. We report on its in-vitro and in-vivo biocompatability, in-vitro and in-vivo effect on angiogenesis, in-vitro effect on microbial growth, and ability to form complex coacervates with heparin.
DOI: 10.1016/j.biomaterials.2017.02.020
发表时间: 2017-05
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影响因子: 14
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Awada HK;Long DW;Wang Z;Hwang MP;Kim K;Wang Y
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