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Poly (ortho esters) implants for the sustained delivery of a protein: factors influencing the release behaviour of bsa in vitro.

机译:聚(俄罗斯酯)植入物用于持续递送蛋白质:影响体外BSA释放行为的因素。

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Peptides and proteins have received much attention in recent years as drug candidates. Unfortunately, most of these drugs cannot produce their full therapeutic effects when administered by the parenteral route, owing to their extremely short-lived biological activity (1). A variety of bioresorbable polymers have been used as matrices for controlled release deivery systems, for parenteral paplications. Among them, a new family of poly(ortho esters) (POE IV), based on the reaction betwene a diketene acetal and two types of diols, where one diol has been modified by the incorporation of a short lactide or glycolide segment, is of great interest (2,3). These polymers soften and melt on heating and can potentially be shaped in a variety of implants using several molding techniques. The goal of the present research was to develop biodegradable implants suitable for the delivery of proteins. For this purpose, we prepared small rods containing labelled bovine serum albumin (BSA-FITC) as model protein.
机译:肽和蛋白质近年来作为毒品候选人的关注。不幸的是,由于其极短寿命的生物活性(1),大多数这些药物不能产生它们的全面治疗效果。对于肠胃外展示,已被用作受控释放排放系统的基质基质。其中,基于二酮缩醛和两种类型的二醇之间的反应,一种新的聚(邻酯)(PoE IV)的新系列,其中通过掺入短丙交酯或乙酰胺部分来改变一种二醇大兴趣(2,3)。这些聚合物在加热上软化并熔化,并且可以使用多种模制技术在各种植入物中均匀成形。本研究的目的是开发适合递送蛋白质的可生物降解的植入物。为此目的,我们制备了含有标记为牛血清白蛋白(BSA-FITC)作为模型蛋白的小杆。

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