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Centrifugation-Free Magnetic Isolation UNIT 25.4of Functional Mitochondria UsingParamagnetic Iron Oxide Nanoparticles

机译:使用离心磁隔离单元25.4功能性线粒体使用抗抗抗氧化铁氧化物纳米粒子

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Subcellular fractionation techniques are essential for cell biology and drugdevelopment studies. The emergence of organelle-targeted nanoparticle (NP)platforms necessitates the isolation of target organelles to study drug deliveryand activity. Mitochondria-targeted NPs have attracted the attention ofresearchers around the globe, since mitochondrial dysfunctions can cause awide range of diseases. Conventional mitochondria isolation methods involvehigh-speed centrifugation. The problem with high-speed centrifugation-basedisolation of NP-loaded mitochondria is that NPs can pellet even if they arenot bound to mitochondria. We report development of a mitochondria-targetedparamagnetic iron oxide nanoparticle, Mito-magneto, that enables isolationof mitochondria under the influence of a magnetic field. Isolation of mitochondriausing Mito-magneto eliminates artifacts typically associated withcentrifugation-based isolation of NP-loaded mitochondria, thus producing intact,pure, and respiration-active mitochondria.
机译:亚细胞分级技术对于细胞生物学和药物发展研究至关重要。细胞器靶向纳米粒子(NP)平台的出现需要分离靶细胞器以研究药物递送和活性。线粒体目标的NPS引起了全球的研究人员,因为线粒体功能障碍可能导致令人醒的疾病。常规线粒体隔离方法涉及高速离心。高速离心的基于NP负载的线粒体的问题是,即使它们与线粒体结合的情况,NPS也可以颗粒。我们报告了线粒体靶向明酰胺氧化铁纳米粒子,Mito-MagnetO的研制,其能够在磁场的影响下分离线粒体。线粒体的分离消除了通常与基于NP负载的线粒体分离的植物中的伪影,从而产生完整,纯度和呼吸活性线粒体。

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