Abstract
Microfluidic devices offer precise control of single cells and molecules by liquid flows, downsizing tools to allow us to perform single-cell assays at unprecedented resolutions and minimizing contamination. In this chapter, we introduce an approach, called single-cell integrated nuclear and cytoplasmic RNA-sequencing (SINC-seq), which enables precise fractionation of cytoplasmic and nuclear RNA of single cells. This approach uses electric field control in microfluidics to manipulate single cells and RNA sequencing to dissect gene expression and RNA localization in subcellular compartments. The microfluidic system for SINC-seq exploits a hydrodynamic trap (a constriction in a microchannel) to isolate a single cell, selectively lyses its plasma membrane via a focused electric field, and retains the nucleus at the hydrodynamic trap during the electrophoretic extraction of cytoplasmic RNA. Here, we provide a step-by-step protocol from microfluidic RNA fractionation to off-chip preparation of RNA-sequencing libraries for full-length cDNA sequencing using both a short-read sequencer (Illumina) and a long-read sequencer (Oxford Nanopore Technologies).
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References
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Abdelmoez, M.N., Shintaku, H. (2023). A SINC-Seq Protocol for the Analysis of Subcellular Gene Expression in Single Cells. In: Li, P.C., Wu, A.R. (eds) Single-Cell Assays. Methods in Molecular Biology, vol 2689. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-3323-6_14
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DOI: https://doi.org/10.1007/978-1-0716-3323-6_14
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Publisher Name: Humana, New York, NY
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Online ISBN: 978-1-0716-3323-6
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