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Using a BioID approach, Bagci et al. systematically analyse the Rho-family GTPase interactome and reveal previously unappreciated interactions with RhoGEFs and RhoGAPs and effectors for Rho proteins.
Different types of stromal cells in the bone marrow associate to form niches that support differentiating blood cells and ensure lifelong production of all major blood lineages. A study now combines single-cell and spatial transcriptomics with imaging to infer the cellular composition and spatial architecture of specific niches.
Tangential expansion of neural stem cells in the mammalian neocortex increases the number of cortical columns. A new study shows that neural stem cells that become detached from the apical surface during division regenerate an apical endfoot to ensure tangential expansion in the early stage but later lose this ability when radial expansion occurs.
Fujita et al. show that endfoot regeneration of radial glia cells after division retains them in the ventricular zone in early development, independently of spindle orientation, but is lost during late neurogenesis.
Baccin, Al-Sabah, Velten et al. use single-cell and spatially resolved transcriptomics to map the cellular, molecular and spatial organization of the endosteal, sinusoidal and arteriolar bone marrow niches.
Zhang et al. show that ketogenesis-derived β-hydroxybutyrate (BHB) epigenetically modifies H3K9 of Foxo1 and Ppargc1a to regulate Pck1, which in turn controls metabolic flux and CD8+ memory T-cell development.
Advances in CRISPR-based systems have greatly expanded the molecular toolbox for biologists. In this issue, we present the first of a Series of commissioned Review articles that highlight the progress made using CRISPR–Cas9 technology and its relevance for cell biological research.
Ling and Sauka-Spengler reveal chromatin and transcriptional landscapes that regulate the early specification of vagal neural crest cells during the development of the enteric nervous system in chicken.
Mercey et al. demonstrate that without deuterosomes, multiciliated cells still develop the proper number of centrioles with normal step-wise kinetics, independent of the growing platform.
Harnessing DNA repair pathways in genome editing In this Review, Yeh, Richardson and Corn discuss the DNA repair pathways that underlie genome editing and recent improvements and strategies to yield desired genomic alterations in cells and organisms.
The T-box factors Eomes and Brachyury activate mesoderm and endoderm programs by establishing accessible chromatin at mesoderm and endoderm enhancers, and bind and repress enhancers of pluripotency and neuroectoderm genes.
Zhu et al. show that, in response to growth factors, TBKBP1 recruits TBK1 to promote its activation by PKCθ, thereby facilitating mTORC1 activation, tumour-mediated immunosuppression and tumourigenesis.
Chen et al. show that, after serum or lysophosphatidic acid stimulation, RhoA dissociates rhophilin and NF2/Kibra from STRIPAK to control MST1, MST2 and MAP4Ks to regulate Hippo signalling.
Cai et al. show that YAP forms liquid-like condensates in the nucleus that compartmentalize YAP’s DNA binding cofactors and transcription co-activators to induce transcription of YAP-specific proliferation genes.
In this Perspective, Lea and Niakan describe advances in CRISPR/Cas9 genome editing techniques and discuss ethical questions and potential clinical implications of this technology.
Perry and Morioka et al. show that the chloride transporter SLC12A2 regulates apoptotic cell uptake by phagocytes and, together with SLC12 kinases WNK1, OSR1 and SPAK, this pathway maintains an anti-inflammatory gene signature.
Tendons have limited regenerative potential, and injuries often cause scarring. A study now identifies a tendon stem cell population that contributes to regeneration and a tendon fibro–adipogenic progenitor population involved in fibrosis.
In mammals, a circadian timing system composed of a master clock in the brain’s suprachiasmatic nucleus and oscillators in peripheral organs drives daily rhythms of behavior and physiology. A study now reveals that the periodic oxidation of the CLOCK protein enhances the amplitude of cyclic gene expression and affects the daily rhythms of behavior.