The application of LbL-microcarriers for the treatment of chronic inflammation: monitoring the impact of LbL-microcarriers on cell viability.

The application of LbL-microcarriers for the treatment of chronic inflammation: monitoring the impact of LbL-microcarriers on cell viability.
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LbL-微载体在慢性炎症治疗中的应用:监测LbL-微载体对细胞活力的影响

DOI:
10.1002/mabi.201400405
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发表时间:
2015
影响因子:
4.6
通讯作者:
U. Reibetanz
U. Reibetanz
中科院分区:
工程技术3区
文献类型:
--
作者:
M. Fichtner;C. Claus;J. Lessig-Owlanj;J. Arnhold;U. Reibetanz

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一层接一层(LbL)包被的微载体为治疗物质进入特定细胞提供了一种多功能药物递送系统。炎症细胞作为多形核白细胞(pmn)是LbL -微载体运输抗炎物质(如α1 -抗胰蛋白酶(AT))的一个特别有希望的靶标。它们促进了局部、低剂量和时间控制的组装治疗药物的应用,以有效抑制pmn提供的破坏性酶。但除了治疗作用外,微载体本身预计不会影响细胞活力。因此,本研究强调研究LbL微载体对炎症细胞坏死或凋亡的影响。检测线粒体膜电位变化,报告细胞凋亡的诱导,通过检测细胞核凋亡变化和乳酸脱氢酶释放报告潜在的坏死影响来完成。微载体与HL - 60细胞和血液分离pmn相互作用的研究表明,对坏死的影响很小,在AT功能化微载体的情况下,甚至可以长期维持线粒体膜电位,强调LbL -微载体的高电位。
Layer‐by‐Layer (LbL) coated microcarriers provide a multifunctional drug delivery system for therapeutic substances into specific cells. Inflammatory cells as polymorphonuclear leukocytes (PMNs) represent a particularly promising target for LbL‐microcarriers transporting anti‐inflammatory substances such as α1‐antitrypsin (AT). They facilitate a local, low‐dose and time‐controlled application of the assembled therapeutic to effectively inhibit destructive enzymes provided by PMNs. But besides therapeutic effects, microcarriers themselves are not expected to affect cell viability. Thus, the present study emphasizes the investigation of LbL‐microcarriers regarding their necrotic or apoptotic influence on inflammatory cells. The detection of mitochondrial membrane potential changes, reporting the induction of cellular apoptosis, was completed by the detection of apoptotic changes of the nucleus and lactate dehydrogenase release reporting potential necrotic influences. Investigations of microcarrier interactions with HL‐60 cells and blood‐isolated PMNs show very low influence on necrosis and, in case of AT‐functionalized microcarriers, even a prolonged maintenance of mitochondrial membrane potential underlining the high potential of LbL‐microcarriers.
人类白血病细胞系 HL-60 中的癌基因迁移率。
DOI: 10.1016/0165-4608(85)90023-8
发表时间: 1985
影响因子: --
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粒细胞凋亡和炎症性疾病。
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影响因子: 6.7
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DOI: 10.1021/bi00232a015
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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
发表时间: 2013
期刊: Journal of materials chemistry. B
影响因子: --
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DOI: 10.1021/nn301791w
发表时间: 2012-07-01
期刊: ACS NANO
影响因子: 17.1
作者:
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通讯作者: Lessig, Jacqueline