Simultaneous In Situ Quantification of Two Cellular Lipid Pools Using Orthogonal Fluorescent Sensors
作者:Shu-Lin Liu、Ren Sheng、Matthew J. O'Connor、Yang Cui、Youngdae Yoon、Svetlana Kurilova、Daesung Lee、Wonhwa Cho
DOI:10.1002/anie.201408153
日期:2014.12.22
Lipids regulate a wide range of biological activities. Since their local concentrations are tightly controlled in a spatiotemporally specific manner, the simultaneous quantification of multiple lipids is essential for elucidation of the complex mechanisms of biological regulation. Here, we report a new method for the simultaneous in situ quantification of two lipid pools in mammalian cells using orthogonal
脂质调节广泛的生物活性。由于它们的局部浓度以时空特定的方式受到严格控制,因此多种脂质的同时定量对于阐明生物调节的复杂机制至关重要。在这里,我们报告一种使用正交荧光传感器同时原位定量哺乳动物细胞中两个脂质池的新方法。这些传感器是通过将两种具有最小光谱重叠的环境敏感荧光团分别掺入工程脂质结合蛋白中而制备的。成像数据的双重比率分析允许对活体哺乳动物细胞质膜的同一张小叶上的两种不同脂质或质膜的两张相对的小叶上的单一脂质进行准确的时空分辨定量分析。