Novel bone targeting naproxen prodrugs with poly(aspartic acid) moieties and with two and three poly(aspartic acid) sequences peptide dendrimers were synthesized using a conventional method. The modified naproxen conjugates were incubated with hydroxyapatite in PBS at physiological conditions over 16h. The study revealed the hydroxyapatite binding properties of poly(aspartic acid) and it was found that the peptide dendrimer prodrugs exhibited a faster initial binding and a greater total binding. The obtained binding data in vitro indicated that the peptide dendrimers with poly(aspartic acid) sequences were useful for the development of new bone targeting molecules for drug delivery to bone.
通过常规方法合成了具有聚
天冬氨酸部分和含有两条及三条聚
天冬氨酸序列的肽树枝状大分子的非甾体抗炎药
萘普生新型骨靶向前药。在生理条件下,将修饰的
萘普生偶联物与
羟基磷灰石在
磷酸盐缓冲液中孵育16小时。研究发现聚
天冬氨酸具有
羟基磷灰石结合性质,并且发现含有聚
天冬氨酸序列的肽树枝状大分子前药显示出更快的初始结合和更大的总结合。体外获得的结合数据表明,具有聚
天冬氨酸序列的肽树枝状大分子在开发新的骨靶向药物递送分子方面具有应用价值。