Osteoarthritis is no doubt a difficult disease to manage. Targeted delivery of drugs to bone
may not only enhance the treatment efficacy, but also reduces the quantity of drug administered. In
this paper, we have synthesized two series of NSAID-Glu oligopeptide conjugates built up by the
therapeutic moiety (naproxen and ibuprofen) and the targeting moieties (Glutamic oligopeptides) via
amide linkage, as novel potential bone-targeting NSAIDs prodrugs. Preliminary studies indicated that
these prodrugs exhibited outstanding hydroxyapatite affinity, furthermore, NSAIDs-glutamic hexa-peptide conjugates
were found more potent in hydroxyapatite binding. The adequate chemical stability of the conjugates in different buffers,
indicated that the conjugates might become a promising approach of selective delivery of drugs to bone tissues. These results
may be conducive to the study of bone targeting drugs delivery.
骨关节炎无疑是一种难以治疗的疾病。向骨骼靶向给药不仅能提高疗效,还能减少给药量。本文合成了两个系列的非甾体抗炎药-谷
氨酸低聚肽共轭物,这两个共轭物由治疗分子(
萘普生和
布洛芬)和靶向分子(谷
氨酸低聚肽)通过酰胺连接而成,是潜在的新型骨靶向非甾体抗炎药原药。初步研究表明,这些原药具有出色的
羟基磷灰石亲和力,而且非甾体抗炎药-谷
氨酸六肽共轭物的
羟基磷灰石结合力更强。这些共轭物在不同的缓冲液中具有足够的
化学稳定性,这表明这些共轭物可能会成为向骨组织选择性给药的一种有前途的方法。这些结果可能有助于研究骨靶向给药。