Imaging DNA with fluorochrome bearing metals.

Imaging DNA with fluorochrome bearing metals.
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DOI:
10.1021/ic400404g
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发表时间:
2013-11-04
影响因子:
4.6
通讯作者:
Josephson L
Josephson L
中科院分区:
化学2区
文献类型:
--
作者:
Cho H;Guo Y;Sosnovik DE;Josephson L

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在结合DNA时发荧光的分子广泛用于测定和可视化细胞和组织中的DNA。然而,使用光来可视化动物中的DNA受到生物组织对光传输的衰减的限制。此外,现在很清楚,DNA是死细胞清除,凝血反应和自身免疫性狼疮中的免疫原的重要介质。附着金属(例如,超顺磁性纳米颗粒、钆离子、放射性金属离子)与DNA结合荧光染料的结合提供了一种在没有光的情况下对整个动物和潜在的人类中的DNA进行成像的方式。通过磁共振成像对含金属的DNA结合荧光染料及其靶DNA进行成像,可以揭示DNA在健康和疾病中的许多关键作用,而不仅仅是存储遗传信息。
Molecules that fluoresce upon binding DNA are widely used in assaying and visualizing DNA in cells and tissues. However, using light to visualize DNA in animals is limited by the attenuation of light transmission by biological tissues. Moreover, it is now clear that DNA is an important mediator of dead cell clearance, coagulation reactions, and an immunogen in autoimmune lupus. Attaching metals (e.g., superparamagnetic nanoparticles, gadolinium ions, radioactive metal ions) to DNA-binding fluorochromes provides a way of imaging DNA in whole animals, and potentially humans, without light. Imaging metal-bearing, DNA-binding fluorochromes and their target DNA by magnetic resonance imaging may shed light on the many key roles of DNA in health and disease beyond the storage of genetic information.
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发表时间: 2009-08-07
期刊: Chemical communications (Cambridge, England)
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