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首页> 外文期刊>Journal of Microencapsulation: Microcapsules Liposomes Nanoparticles Microcells Microspheres >The impact of allylamine-bile acid combinations on cell delivery microcapsules in diabetes
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The impact of allylamine-bile acid combinations on cell delivery microcapsules in diabetes

机译:烯丙胺-胆汁酸组合对糖尿病细胞递送微胶囊的影响

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Objective: In a recent study, we developed a new microencapsulating method for beta-cell microencapsulation, but cell viability declined rapidly, post microencapsulation, due to potential polymer-polyelectrolyte chelation and non-porous microcapsules' membranes resulting in cell apoptosis. Thus, this study tested the effects of incorporating cationic polyamine at 1% w/v, on microcapsule strength and cell viability, in the absence or presence of an anionic tertiary bile acid (ATBA) with potential cell-protective effects.Methods: 1% w/v polyamine was used without or with ATBA, to form beta-cell microcapsules and physical and biological analyses was carried out 50h post microencapsulation.Results: Microcapsules containing 1% w/v polyamine showed weak physical properties and low cell viability and ATBA incorporation resulted in >30% reduction in cell viability and increased levels of pro-inflammatory cytokines.Conclusion: Neither 1% w/v polyamine nor the presence of ATBA resulted in optimised cell viability, but rather reduced cell viability, enhanced inflammation and lowered insulin secretion.
机译:目的:在最近的研究中,我们开发了一种用于β细胞微囊化的新微囊化方法,但是由于潜在的聚合物-聚电解质螯合和无孔微囊膜导致细胞凋亡,细胞活力在微囊化后迅速下降。因此,本研究测试了在不存在或存在具有潜在细胞保护作用的阴离子叔胆酸(ATBA)的情况下,掺入1%w / v的阳离子多胺对微胶囊强度和细胞活力的影响。方法:1%使用w / v多胺时不使用或结合使用ATBA来形成β细胞微胶囊,并在微囊化后50h进行了物理和生物学分析。结果:含有1%w / v多胺的微胶囊显示出较弱的物理性能和较低的细胞活力,并且掺入了ATBA导致细胞活力降低> 30%,并增加促炎细胞因子水平。结论:1%w / v多胺和ATBA的存在均未优化细胞活力,但降低了细胞活力,增强了炎症并降低了胰岛素分泌。

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