Live-cell imaging of multiple endogenous mRNAs permits the direct observation of RNA granule dynamics†
Abstract
Here, we developed two pairs of high-contrast chemical probes and their RNA aptamers with distinct readout channels that permitted simultaneous live-cell imaging of endogenous β-actin and cortactin mRNAs. Application of this technology allowed the direct observation of the formation process of stress granules, protein–RNA assemblies essential for cellular response to the environment.