Nature Cell Biology
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20.04
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#1Bo Gong (THU: Tsinghua University)H-Index: 4
#2Yuting Guo (CAS: Chinese Academy of Sciences)H-Index: 10
Last. Shunji Jia (THU: Tsinghua University)H-Index: 12
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Endosome fission is essential for cargo sorting and targeting in the endosomal system. However, whether organelles other than the endoplasmic reticulum (ER) participate in endosome fission through membrane contacts is unknown. Here, we characterize a Golgi-derived vesicle, the SEC14L2 compartment, that plays a unique role in facilitating endosome fission through ternary contacts with endosomes and the ER. Localized to the ER-mediated endosome fission site, the phosphatidylinositol transfer prote...
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#2Silvia SchirgeH-Index: 3
Last. Johannes Beckers (TUM: Technische Universität München)H-Index: 52
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It is generally accepted that epiblast cells ingress into the primitive streak by epithelial-to-mesenchymal transition (EMT) to give rise to the mesoderm; however, it is less clear how the endoderm acquires an epithelial fate. Here, we used embryonic stem cell and mouse embryo knock-in reporter systems to combine time-resolved lineage labelling with high-resolution single-cell transcriptomics. This allowed us to resolve the morphogenetic programs that segregate the mesoderm from the endoderm ger...
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#1Marit E. Geijer (Erasmus University Medical Center)H-Index: 3
#2Di Zhou (Erasmus University Medical Center)H-Index: 1
Last. Roel C. Janssens (Erasmus University Medical Center)H-Index: 11
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Intestinal organoids have been used to model development of the crypt–villus axis and uncover signalling pathways that govern the stem-cell niche and induce differentiation. Two studies now take advantage of intestinal organoids to measure the mechanical forces that drive morphogenesis of the crypt and fate specification of its resident cells.
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#1Carlos Pérez-González (PSL Research University)H-Index: 6
#2Gerardo Ceada (University of Barcelona)H-Index: 2
Last. Andrew G. Clark (PSL Research University)H-Index: 125
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Intestinal organoids capture essential features of the intestinal epithelium such as crypt folding, cellular compartmentalization and collective movements. Each of these processes and their coordination require patterned forces that are at present unknown. Here we map three-dimensional cellular forces in mouse intestinal organoids grown on soft hydrogels. We show that these organoids exhibit a non-monotonic stress distribution that defines mechanical and functional compartments. The stem cell co...
2 CitationsSource
#1Qiutan Yang (FMI: Friedrich Miescher Institute for Biomedical Research)H-Index: 3
#2Shi-Lei Xue (Institute of Science and Technology Austria)H-Index: 2
Last. Prisca Liberali (University of Basel)H-Index: 17
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Intestinal organoids derived from single cells undergo complex crypt-villus patterning and morphogenesis. However, the nature and coordination of the underlying forces remains poorly characterized. Here, using light-sheet microscopy and large-scale imaging quantification, we demonstrate that crypt formation coincides with a stark reduction in lumen volume. We develop a 3D biophysical model to computationally screen different mechanical scenarios of crypt morphogenesis. Combining this with live-i...
2 CitationsSource
#1Jung Hwa Kim (SNU: Seoul National University)H-Index: 15
#2Hee June Choi (SNU: Seoul National University)H-Index: 6
Last. Su-Il Kim (SNU: Seoul National University)H-Index: 20
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Expression of exon-specific isoforms from alternatively spliced mRNA is a fundamental mechanism that substantially expands the proteome of a cell. However, conventional methods to assess alternative splicing are either consumptive and work-intensive or do not quantify isoform expression longitudinally at the protein level. Here, we therefore developed an exon-specific isoform expression reporter system (EXSISERS), which non-invasively reports the translation of exon-containing isoforms of endoge...
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RNA-binding proteins (RBPs) have essential functions during germline and early embryo development. However, current methods are unable to identify the in vivo targets of a RBP in these low-abundance cells. Here, by coupling RBP-mediated reverse transcription termination with linear amplification of complementary DNA ends and sequencing, we present the LACE-seq method for identifying RBP-regulated RNA networks at or near the single-oocyte level. We determined the binding sites and regulatory mech...
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Proteins undergoing liquid-liquid phase separation are being discovered at an increasing rate. Since at the high concentrations present in the cell most proteins would be expected to form a liquid condensed state, this state should be considered to be a fundamental state of proteins along with the native state and the amyloid state. Here we discuss the generic nature of the liquid-like and solid-like condensed states, and describe a wide variety of biological functions conferred by these condens...
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