Development of LbL biopolymer capsules as a delivery system for the multilayer-assembled anti-inflammatory substance α1-antitrypsin.
Development of LbL biopolymer capsules as a delivery system for the multilayer-assembled anti-inflammatory substance α1-antitrypsin.
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开发 LbL 生物聚合物胶囊作为多层组装抗炎物质 α1-抗胰蛋白酶的递送系统
DOI:
10.1039/c3tb20390e
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发表时间:
2013
期刊:
影响因子:
--
通讯作者:
U. Reibetanz
中科院分区:
文献类型:
--
作者:
V. Strehlow;J. Leßig;M. Göse;U. Reibetanz
The treatment of chronic inflammation requires new concepts since recent approaches are mostly accompanied by massive side effects. Layer-by-layer (LbL) microcapsules, functionalized with anti-inflammatory substances such as α1-antitrypsin (AT), may avoid major side- and off-target effects thanks to their local application and the sustained delivery of defined amounts of the active agents into polymorphonuclear leukocytes (PMNs). However, LbL microcapsule application in inflamed tissues requires specific design and preparation. High biocompatibility has to be guaranteed by using biopolymers and ensuring the complete dissolution of the particle core. Moreover, off-target effects – such as macrophage-mediated pro-inflammatory signaling – have to be avoided. In our approach, biopolymer-coated CaCO3 particles were used and the core dissolution process was optimized to obtain highly biocompatible, non-aggregated, long-time stable and clearly calcium-free capsules. A fast verification tool was applied to monitor the remaining Ca2+ content. The incubation with macrophages shows reduced pro-inflammatory signaling compared to microparticles. Regarding their performance as a drug delivery system, AT-functionalized capsules showed a high inhibiting capacity towards neutrophil elastase, a major degradative enzyme in chronic inflammation. Consequently, the optimized design and preparation methods described in this study provide the basis for the development of medically applicable LbL carrier systems for active agents in the treatment of inflammatory processes.
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影响因子:
7.5
作者:
A. Cumming;G. Jones;R. Wensley;R. Cundall
通讯作者:
R. Cundall
影响因子:
17.1
作者:
Reibetanz, Uta;Schoenberg, Maria;Lessig, Jacqueline
通讯作者:
Lessig, Jacqueline
DOI:
--
发表时间:
1997
期刊:
影响因子:
--
作者:
P. Seest Jørgensen;S. Rasmussen;C. Tørholm
通讯作者:
C. Tørholm
影响因子:
3.7
作者:
Rathmann, Sophie;Schoenberg, Maria;Reibetanz, Uta
通讯作者:
Reibetanz, Uta
DOI:
--
发表时间:
1977
期刊:
Biochimica et Biophysica Acta
影响因子:
--
作者:
S. Keppens;J. Vandenheede;H. De Wulf
通讯作者:
H. De Wulf