Project description:We have developed the HybriSeq method for single-cell RNA profiling, which utilizes in situ hybridization of multiple probes for targeted transcripts, followed by split-pool barcoding and sequencing analysis of the probes. We have shown that HybriSeq can achieve high sensitivity for RNA detection with multiple probes and profile entire transcripts without an end bias. The utility of HybriSeq is demonstrated in characterizing cell-to-cell heterogeneities of a panel of 196 genes in peripheral blood mononuclear cells and the detection of missed annotations of transcripts.
Project description:Microfluidic devices provide a low-input and efficient platform for single-cell RNA-seq (scRNA-Seq). Here we present microfluidic diffusion-based RNA-seq (MID-RNA-seq) for conducting scRNA-seq with a diffusion-based reagent swapping scheme. This device incorporates cell trapping, lysis, reverse transcription and PCR amplification all in one microfluidic chamber. MID-RNA-Seq provides high data quality that is comparable to existing scRNA-seq methods while implementing a simple device design that permits multiplexing. The robustness and scalability of MID-RNA-Seq device will be important for transcriptomic studies of scarce cell samples.
Project description:Probe-Seq is a method that allows transcriptional profiling of specific cell types from heterogeneous tissue by labeling RNA. Briefly, we developed Probe-Seq, which allows deep transcriptional profiling of specific cell types isolated based on RNA abundance of defined markers. We applied Probe-Seq to purify and profile specific cell types from mouse, human, and chick retinas as well as the Drosophila gut. We also showed that Probe-Seq is compatible with frozen nuclei and that multiplexed Probe-Seq enables iterative isolation of multiple cell types from the same tissue sample. Provided that unique markers are available, this simple, novel method could potentially enable bulk RNA sequencing of any cell type from any organism.