Imaging the Unimaginable: Leveraging Signal Generation of CRISPR-Cas for Sensitive Genome Imaging.
Trends in Biotechnology(2023)
摘要
Fluorescence in situ hybridization (FISH) is the gold standard for visualizing genomic DNA in fixed cells and tissues, but it is incompatible with live-cell imaging, and its combination with RNA imaging is challenging. Consequently, due to its capacity to bind double-stranded DNA (dsDNA) and design flexibility, the clustered regularly interspaced short palindromic repeats (CRISPR)-CRISPR-associated protein 9 (CRISPR-Cas9) technology has sparked enormous interest over the past decade. In this review, we describe various nucleic acid (NA)- and protein-based (amplified) signal generation methods that achieve imaging of repetitive and single-copy sequences, and even single-nucleotide variants (SNVs), next to highly multiplexed as well as dynamic imaging in live cells. With future progress in the field, the CRISPR-(d)Cas9-based technology promises to break through as a next-generation cell-imaging technique.
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关键词
CRISPR-Cas9,genome imaging,live-cell imaging,fixed-cell imaging,signal amplification
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