Iterative assay for transposase-accessible chromatin by sequencing to isolate functionally relevant neuronal subtypes
Year: 2024
Type: article
Abstract: brain contains tens of thousands of distinct cell types. Thousands of different transgenic lines reproducibly target specific neuron subsets, yet most still express in several cell types. Furthermore, most lines were developed without a priori knowledge of where the transgenes would be expressed. To aid in the development of cell type-specific tools for neuronal identification and manipulation, we developed an iterative assay for transposase-accessible chromatin (ATAC) approach. Open chromatin regions (OCRs) enriched in neurons, compared to whole bodies, drove transgene expression preferentially in subsets of neurons. A second round of ATAC-seq from these specific neuron subsets revealed additional enriched OCR2s that further restricted transgene expression within the chosen neuron subset. This approach allows for continued refinement of transgene expression, and we used it to identify neurons relevant for sleep behavior. Furthermore, this approach is widely applicable to other cell types and to other organisms.
Source: Science Advances
Institutions: University of Utah, VA Salt Lake City Healthcare System
Language: English
Subfield: Molecular Biology
Domain: Life Sciences
Open Access status: gold
Estimated APC paid: $4,500
Awards: Chromatin remodeling in GABA neurons contributes to alcohol use disorder, Mechanisms of alcohol-induced plasticitey mediated by Arf6, ATAC-ing dopaminergic cell identity with single-cell resolution, Bloomington Drosophila Stock Center at Indiana University, Regulation of WNK signaling by potassium and Mo25: structure, function and physiology, Transcriptional Regulation of Alcohol Sensitivity and Tolerance, Control of Alcohol Responses by Actin-Regulating Genes, Cancer Center Support Grant
OpenAlex ID: W4393246038