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Susanne Kramer Elisabeth Meyer-Natus Christian Stigloher Hanna Thoma Achim Schnaufer Markus Engstler 《Nucleic acids research》2021,49(3):e14
Single mRNA molecules are frequently detected by single molecule fluorescence in situ hybridization (smFISH) using branched DNA technology. While providing strong and background-reduced signals, the method is inefficient in detecting mRNAs within dense structures, in monitoring mRNA compactness and in quantifying abundant mRNAs. To overcome these limitations, we have hybridized slices of high pressure frozen, freeze-substituted and LR White embedded cells (LR White smFISH). mRNA detection is physically restricted to the surface of the resin. This enables single molecule detection of RNAs with accuracy comparable to RNA sequencing, irrespective of their abundance, while at the same time providing spatial information on RNA localization that can be complemented with immunofluorescence and electron microscopy, as well as array tomography. Moreover, LR White embedding restricts the number of available probe pair recognition sites for each mRNA to a small subset. As a consequence, differences in signal intensities between RNA populations reflect differences in RNA structures, and we show that the method can be employed to determine mRNA compactness. We apply the method to answer some outstanding questions related to trans-splicing, RNA granules and mitochondrial RNA editing in single-cellular trypanosomes and we show an example of differential gene expression in the metazoan Caenorhabditis elegans. 相似文献
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Spatial and temporal pattern of cellular myc oncogene expression in developing human placenta: implications for embryonic cell proliferation 总被引:32,自引:0,他引:32
Susan Pfeifer-Ohlsson Anton Scott Goustin Jan Rydnert Torsten Wahlström Lars Bjersing Dominique Stehelin Rolf Ohlsson 《Cell》1984,38(2):585-596
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Optimized T7 amplification system for microarray analysis. 总被引:8,自引:0,他引:8
C Pabón Z Modrusan M V Ruvolo I M Coleman S Daniel H Yue L J Arnold 《BioTechniques》2001,31(4):874-879
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