Development of biodegradable polyesters with various microstructures for highly controlled release of epirubicin and cyclophosphamide

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• 作者：K. Żó ; łtowska^a ; ^{karolina_zoltowska@o2.pl} ; U. Piotrowska^a ; ^{piotrowska_urszula@wp.pl} ; E. Oledzka^a ; ^{eoledzka@wum.edu.pl} ; U. Luchowska^a ; ^{ula.luchowska@gmail.com} ; M. Sobczak^a ; ^{marcin.sobczak@wp.pl} ; ^{marcin.sobczak@wum.edu.pl} ; A. Bocho-Janiszewska^b ; ^{a.bochojaniszewska@gmail.com}
• 关键词：Biodegradable and bioresorbable biomedical polyesters ; Anticancer drug delivery systems ; Controlled release ; Epirubicin ; Cyclophosphamide
• 刊名：European Journal of Pharmaceutical Sciences
• 出版年：2017
• 出版时间：1 January 2017
• 年：2017
• 卷：96
• 期：Complete
• 页码：440-448
• 全文大小：1280 K
• 卷排序：96

文摘

In this study, “predominantly isotactic”, disyndiotactic, and atactic polylactides (PLAs) and poly(ε-caprolactone)s (PCLs) were loaded with anticancer agents, epirubicin (EPI) and cyclophosphamide (CYCLOPHO), to investigate their properties as highly controlled delivery devices. It was found that the kinetic release of drugs from the obtained polyester matrices tested in vitro at 37 °C and pH 7.4 was strongly dependent on average molecular weight (Mn) of the polymers as well as the PLAs' microstructure. EPI and CYCLOPHO were released from various obtained matrices according to the diffusion, diffusion-degradation, and degradation mechanisms in a rather regular and continuous manner. Importantly, in some cases, the kinetics of the EPI and CYCLOPHO release was nearly zero-order, suggesting predominantly polymer degradation. It is shown that the drug release profiles can be tailored by a controlled design of the microstructure and Mn of polyesters, allowing use of the synthesized matrices for the development of highly controlled biodegradable anticancer drug delivery systems.