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|Title:||Expression analysis of rare cellular subsets: Direct RT-PCR on limited cell numbers obtained by FACS or soft agar assays||Authors:||Ho, V.
De Silva, D.
Gene expression profiling
Soft agar assay
|Issue Date:||Apr-2013||Citation:||Ho, V., Yeo, S.Y., Kunasegaran, K., De Silva, D., Tarulli, G.A., Voorhoeve, P.M., Pietersen, A.M. (2013-04). Expression analysis of rare cellular subsets: Direct RT-PCR on limited cell numbers obtained by FACS or soft agar assays. BioTechniques 54 (4) : 208-211. ScholarBank@NUS Repository. https://doi.org/10.2144/000114019||Abstract:||Since tissues and tumors are heterogenous populations containing different cell types, their transcriptomes are blends of multiple mRNA expression profiles. Although fluorescence-activated cell sorting (FACS) allows isolation of individual cell types, RNA isolation and quantification remain problematic from rare subsets, such as tissue stem cells. Likewise, identification of transcriptional changes relevant to the tumorigenic potential of mammalian cells while they are actively growing as colonies in soft agar is also hampered by limited amounts of starting material. Here we describe a convenient method that fills the gap between single cell and whole tissue mRNA analysis, enabling mRNA quantification for individual colonies picked from soft agar. Our method involves directlysis, reverse transcription and quantitative PCR (RT-qPCR) on 500 sorted cells or a single soft agar colony, thus allowing evaluation of up to 20 transcripts in functionally distinct subpopulations without the need for RNA isolation or amplification.||Source Title:||BioTechniques||URI:||http://scholarbank.nus.edu.sg/handle/10635/110076||ISSN:||07366205||DOI:||10.2144/000114019|
|Appears in Collections:||Staff Publications|
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