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Molecular Time Capsules Enable Transcriptomic Recording in Living Cells

Parker, M. L.; Rubien, J.; McCormick, D.; Li, G.-W.

2023-10-16 genetics
10.1101/2023.10.12.562053 bioRxiv
Show abstract

Live-cell transcriptomic recording can help reveal hidden cellular states that precede phenotypic transformation. Here we demonstrate the use of protein-based encapsulation for preserving samples of cytoplasmic RNAs inside living cells. These molecular time capsules (MTCs) can be induced to create time-stamped transcriptome snapshots, preserve RNAs after cellular transitions, and enable retrospective investigations of gene expression programs that drive distinct developmental trajectories. MTCs also open the possibility to uncover transcriptomes in difficult-to-reach conditions.

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