Live-cell imaging of alkyne-tagged small biomolecules by stimulated Raman scattering.

Live-cell imaging of alkyne-tagged small biomolecules by stimulated Raman scattering.
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DOI:
10.1038/nmeth.2878
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发表时间:
2014-04
期刊:
影响因子:
48
通讯作者:
Min, Wei
Min, Wei
中科院分区:
生物学1区
文献类型:
--
作者:
Wei, Lu;Hu, Fanghao;Shen, Yihui;Chen, Zhixing;Yu, Yong;Lin, Chih-Chun;Wang, Meng C.;Min, Wei

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功能性生物小分子在细胞内起着不可或缺的作用。然而,在生命系统中对这些分子进行敏感和特定的可视化已被证明是极具挑战性的。在此,我们报告了炔标签的受激拉曼散射成像作为研究活细胞和动物中小生物分子广谱的一般策略。我们通过追踪小鼠组织中含有炔的药物,并通过代谢结合炔标记的小前体,分别观察DNA、RNA、蛋白质组、磷脂和甘油三酯的从头合成,来证明这种技术。
Functional small biomolecules play indispensable roles inside cells. However, sensitive and specific visualization of these molecules in living systems has proven to be highly challenging. Herein, we report stimulated Raman scattering imaging of alkyne tags as a general strategy for studying a broad spectrum of small biomolecules in live cells and animals. We demonstrate this technique by tracking alkyne-bearing drugs in mouse tissues, and visualizing de novo synthesis of DNA, RNA, proteomes, phospholipids and triglycerides, respectively, through metabolic incorporation of alkyne-tagged small precursors.
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