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| Open AccessOrganization of the human intestine at single-cell resolution
Intestinal cell types are organized into distinct neighbourhoods and communities within the healthy human intestine, with distinct immunological niches.
- John W. Hickey
- , Winston R. Becker
- & Michael Snyder
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Article
| Open AccessLoss of CDK4/6 activity in S/G2 phase leads to cell cycle reversal
We uncover the mechanism underlying the restriction point phenomenon, suggest a role for cyclin-dependent kinase 4 and 6 activity in S and G2 phases, and explain the behaviour of cells following loss of mitogen signalling.
- James A. Cornwell
- , Adrijana Crncec
- & Steven D. Cappell
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Article
| Open AccessIntron-mediated induction of phenotypic heterogeneity
Experiments in yeast show that introns have a role in inducing phenotypic heterogeneity and that intron-mediated regulation of ribosomal proteins confers a fitness advantage by enabling yeast populations to diversify under nutrient-scarce conditions.
- Martin Lukačišin
- , Adriana Espinosa-Cantú
- & Tobias Bollenbach
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Article
| Open AccessThe mouse cortico–basal ganglia–thalamic network
Mesoscale connectomic mapping of the cortico–basal ganglia–thalamic network reveals key architectural and information processing features.
- Nicholas N. Foster
- , Joshua Barry
- & Hong-Wei Dong
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Letter |
Rare cell variability and drug-induced reprogramming as a mode of cancer drug resistance
Through drug exposure, a rare, transient transcriptional program characterized by high levels of expression of known resistance drivers can get ‘burned in’, leading to the selection of cells endowed with a transcriptional drug resistance and thus more chemoresistant cancers.
- Sydney M. Shaffer
- , Margaret C. Dunagin
- & Arjun Raj
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Letter |
Applying systems-level spectral imaging and analysis to reveal the organelle interactome
Using confocal and lattice light sheet microscopy, the authors perform systems-level analysis of the organelle interactome in live cells, allowing them to visualize the frequency and locality of up to five-way interactions between different organelles.
- Alex M. Valm
- , Sarah Cohen
- & Jennifer Lippincott-Schwartz
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Letter |
Single-cell spatial reconstruction reveals global division of labour in the mammalian liver
Single-molecule fluorescence in situ hybridization is performed to identify several landmark genes in the liver and their level of expression in single-cell RNA sequencing is used to spatially reconstruct the zonation of all liver genes.
- Keren Bahar Halpern
- , Rom Shenhav
- & Shalev Itzkovitz
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Article |
Combinatorial gene regulation by modulation of relative pulse timing
Many gene-regulatory proteins have been shown to activate in pulses, but whether cells exploit the dynamic interaction between pulses of different regulatory proteins has remained unexplored; here single-cell videos show that yeast cells modulate the relative timing between the pulsatile transcription factors Msn2 and Mig1—a gene activator and a repressor, respectively—to control the expression of target genes in response to diverse environmental conditions.
- Yihan Lin
- , Chang Ho Sohn
- & Michael B. Elowitz
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Letter |
Cell-intrinsic adaptation of lipid composition to local crowding drives social behaviour
Little is known about how individual cells within a group of cells exposed to the same external signals can produce a specific individual response to their local microenvironment; a quantitative analysis of cell crowding reveals that single cells can autonomously sense local crowding though their ability to spread and activate focal adhesion kinase (FAK), which ultimately results in changes in cellular lipid composition.
- Mathieu Frechin
- , Thomas Stoeger
- & Lucas Pelkmans
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Deconstructing transcriptional heterogeneity in pluripotent stem cells
This study uses single-cell expression profiling of pluripotent stem cells after various perturbations, and uncovers a high degree of variability that can be inherited through cell divisions—modulating microRNA or external signalling pathways induces a ground state with reduced gene expression heterogeneity and a distinct chromatin profile.
- Roshan M. Kumar
- , Patrick Cahan
- & James J. Collins
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Letter |
Single-cell transcriptomics reveals bimodality in expression and splicing in immune cells
Single-cell RNA sequencing is used to investigate the transcriptional response of 18 mouse bone-marrow-derived dendritic cells after lipopolysaccharide stimulation; many highly expressed genes, such as key immune genes and cytokines, show bimodal variation in both transcript abundance and splicing patterns. This variation reflects differences in both cell state and usage of an interferon-driven pathway involving Stat2 and Irf7.
- Alex K. Shalek
- , Rahul Satija
- & Aviv Regev
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Single-cell analysis: Imaging is everything
Advances in single-cell imaging bring opportunities for physicists, biologists and chemists alike.
- Amy Maxmen