miRNA detection at single-cell resolution using microfluidic LNA flow-FISH
- Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Flow cytometry in combination with fluorescent in situ hybridization (flow-FISH) is a powerful technique that can be utilized to rapidly detect nucleic acids at single-cell resolution without the need for homogenization or nucleic acid extraction. Here, we describe a microfluidic-based method which enables the detection of microRNAs or miRNAs in single intact cells by flow-FISH using locked nucleic acid (LNA)-containing probes. Our method can be applied to all RNA species including mRNA and small noncoding RNA and is suitable for multiplexing with protein immunostaining in the same cell. For demonstration of our method, this chapter details the detection of miR155 and CD69 protein in PMA and ionomycin-stimulated Jurkat cells. Here, we also include instructions on how to set up a microfluidic chip sample preparation station to prepare cells for imaging and analysis on a commercial flow cytometer or a custom-built micro-flow cytometer.
- Research Organization:
- Sandia National Laboratories (SNL-CA), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- AC04-94AL85000
- OSTI ID:
- 1333852
- Report Number(s):
- SAND--2014-2572J; 569686
- Journal Information:
- Methods in Molecular Biology, Journal Name: Methods in Molecular Biology Vol. 1211; ISSN 1064-3745
- Publisher:
- SpringerCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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