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Title: Cell-Type-Specific Profiling of Gene Expression and Chromatin Binding without Cell Isolation: Assaying RNA Pol II Occupancy in Neural Stem Cells

Journal Article · · Developmental Cell

Cell-type-specific transcriptional profiling often requires the isolation of specific cell types from complex tissues. We have developed ‘‘TaDa,’’ a technique that enables cell-specific profiling without cell isolation. TaDa permits genome-wide profiling of DNA- or chromatin-binding proteins without cell sorting, fixation, or affinity purification. The method is simple, sensitive, highly reproducible, and transferable to any model system. We show that TaDa can be used to identify transcribed genes in a celltype-specific manner with considerable temporal precision, enabling the identification of differential gene expression between neuroblasts and the neuroepithelial cells from which they derive. We profile the genome-wide binding of RNA polymerase II in these adjacent, clonally related stem cells within intact Drosophila brains. Our data reveal expression of specific metabolic genes in neuroepithelial cells, but not in neuroblasts, and highlight gene regulatory networks that may pattern neural stem cell fates.

Research Organization:
Univ. of Cambridge (United Kingdom)
Sponsoring Organization:
Wellcome Trust
DOE Contract Number:
068055; 092545
OSTI ID:
1623657
Journal Information:
Developmental Cell, Vol. 26, Issue 1; ISSN 1534-5807
Publisher:
Cell Press - Elsevier
Country of Publication:
United States
Language:
English

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Systemic and local cues drive neural stem cell niche remodelling during neurogenesis in Drosophila. journalarticle January 2018
Neuroblast-specific open chromatin allows the temporal transcription factor, Hunchback, to bind neuroblast-specific loci journal January 2019
An efficient targeted nuclease strategy for high-resolution mapping of DNA binding sites journal January 2017
Cell cycle heterogeneity directs the timing of neural stem cell activation from quiescence journal April 2018
Identification of RNA-binding protein targets with HyperTRIBE journal July 2018
Regulators of Long-Term Memory Revealed by Mushroom Body-Specific Gene Expression Profiling in Drosophila melanogaster journal June 2018
DamID profiling of dynamic Polycomb-binding sites in Drosophila imaginal disc development and tumorigenesis journal June 2018
The GAL4 System: A Versatile System for the Manipulation and Analysis of Gene Expression book October 2016
Mechanotransduction via the LINC complex regulates DNA replication in myonuclei journal April 2018
Dam it's good! DamID profiling of protein-DNA interactions: Dam it's good! journal September 2015
Systemic and local cues drive neural stem cell niche remodelling during neurogenesis in Drosophila journal January 2018
The Renaissance of Developmental Biology journal May 2015
The female gametophyte: an emerging model for cell type-specific systems biology in plant development text January 2015
iDamIDseq and iDEAR: an improved method and computational pipeline to profile chromatin-binding proteins journal October 2016
Direct control of somatic stem cell proliferation factors by the Drosophila testis stem cell niche journal July 2018
Condensin I subunit Cap-G is essential for proper gene expression during the maturation of post-mitotic neurons posted_content January 2020
A large-scale resource for tissue-specific CRISPR mutagenesis in Drosophila posted_content December 2019
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yap1b , a divergent Yap/Taz family member, cooperates with yap1 in survival and morphogenesis via common transcriptional targets journal May 2019
The Drosophila fussel gene is required for bitter gustatory neuron differentiation acting within an Rpd3 dependent chromatin modifying complex journal February 2019
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Circulating extracellular DNA levels are acutely elevated in ischaemic stroke and associated with innate immune system activation text January 2017
United colours of chromatin? Developmental genome organisation in flies journal March 2019
Early Stem Cell Aging in the Mature Brain posted_content October 2020
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Copper and Zinc Homeostasis: Lessons from Drosophila melanogaster journal December 2017
Nuclear Lamin is required for Winged Eye‐mediated transdetermination of Drosophila imaginal disc journal July 2018
Dynamic neurotransmitter specific transcription factor expression profiles during Drosophila development posted_content April 2020
Early stem cell aging in the mature brain. text January 2021
Chromatin regulators in neurodevelopment and disease: Analysis of fly neural circuits provides insights: Networks of chromatin regulators and transcription factors underlie Drosophila neurogenesis and cognitive defects in intellectual disability and neuro journal July 2014
Mushroom Body Specific Transcriptome Analysis Reveals Dynamic Regulation of Learning and Memory Genes After Acquisition of Long-Term Courtship Memory in Drosophila journal November 2018
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The Drosophila fussel gene is required for bitter gustatory neuron differentiation acting within an Rpd3 dependent chromatin modifying complex posted_content November 2018
Context-dependent gene regulation by transcription factor complexes posted_content July 2019
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Neuroblast-specific chromatin landscapes allow integration of spatial and temporal cues to generate neuronal diversity in Drosophila posted_content January 2018
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Distinct gene-selective roles for a network of core promoter factors in Drosophila neural stem cell identity journal April 2019
The female gametophyte: an emerging model for cell type-specific systems biology in plant development journal November 2015
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Mechanosensory neuron regeneration in adult Drosophila journal March 2021

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