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Centrifuge

离心机

公司名称: Thermo Fisher Scientific
产品编号: accuSpinTM Micro 17
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Measurement of Mitochondrial DNA Release in Response to ER Stress
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2016-06-20
[Abstract]  Mitochondria house the metabolic machinery for cellular ATP production. The mitochondrial network is sensitive to perturbations (e.g., oxidative stress and pathogen invasion) that can alter membrane potential, thereby compromising function. Healthy mitochondria maintain high membrane potential due to oxidative phosphorylation (Ly et al., 2003). Changes in mitochondrial function or calcium levels can cause depolarization, or a sharp decrease in mitochondrial membrane potential (Bernardi, 2013). Mitochondrial depolarization induces opening of the mitochondrial ... [摘要]  线粒体代表细胞ATP生产的代谢机制。线粒体网络对可以改变膜电位,从而损害功能的扰动(氧化应激和病原体侵入)敏感。健康的线粒体由于氧化磷酸化维持高的膜电位(Ly等人,2003)。线粒体功能或钙水平的变化可导致去极化,或线粒体膜电位的急剧下降(Bernardi,2013)。线粒体去极化诱导线粒体通透性转换孔(MPTP)的开放,其允许线粒体组分如活性氧(mtROS),线粒体DNA(mtDNA)或膜间隙蛋白释放到细胞质中(Martinou和Green,2001; Tait和Green ,2010; Bronner和O'Riordan,2014)。这些内容触发炎症,并且可导致细胞死亡(West等人,2011)。 mtROS和细胞溶质mtDNA有助于炎症细胞的活化,多蛋白复合物,其处理促炎细胞因子,IL-18和IL-1β。研究表明,胞质mtDNA尤其可以结合两种不同的炎症小体传感器AIM2和NLRP3,导致炎症小体激活(Burckstummer等人,2009; Hornung和Latz,2010)。在此协议中,您将能够特异性提取细胞质mtDNA并使用qPCR测定法定量。


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