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    1. Developmental Biology
    2. Neuroscience

    Signalling through AMPA receptors on oligodendrocyte precursors promotes myelination by enhancing oligodendrocyte survival

    Eleni Kougioumtzidou et al.
    Electrically active axons in white matter stimulate their own myelination by releasing glutamate, which signals through AMPA-type glutamate receptors on nearby oligodendrocyte precursors and newly-differentiating oligodendrocytes, enhancing their survival and hence their ability to myelinate.
    1. Microbiology and Infectious Disease

    Experimentally guided models reveal replication principles that shape the mutation distribution of RNA viruses

    Michael B Schulte et al.
    A mathematical model that combines stochasticity and spatial structure describes the dynamics of the viral population during an infection cycle, and fitting the model to RNA and virus abundances over time shows that poliovirus follows a geometric replication mode.
    1. Neuroscience

    Neuron-glia signaling in developing retina mediated by neurotransmitter spillover

    Juliana M Rosa et al.
    Retinal waves are correlated with calcium transients in Müller cells, demonstrating that spontaneous activity encompasses both neuronal and glial networks during a crucial period of retinal development.
    1. Epidemiology and Global Health
    2. Human Biology and Medicine

    Evaluating mesenchymal stem cell therapy for sepsis with preclinical meta-analyses prior to initiating a first-in-human trial

    Manoj M Lalu et al.
    A rigorous and transparent evaluation of mesenchymal stem cell therapy for sepsis suggests it may be efficacious, although the strength of these findings is tempered by threats to validity in the studies that were included.
    1. Computational and Systems Biology
    2. Chromosomes and Gene Expression

    Combinatorial bZIP dimers display complex DNA-binding specificity landscapes

    José A Rodríguez-Martínez et al.
    Cognate site identification uncovers the impact of combinatorial dimerization in specifying new DNA binding sites for human bZIP transcription factors and comprehensive specificity landscapes predict the impact of SNPs on bZIP binding at previously unannotated regulatory loci.
    1. Developmental Biology

    Hedgehog signaling patterns the oral-aboral axis of the mandibular arch

    Jingyue Xu et al.
    SHH signaling acts through FOXF1/2 transcription factors and antagonizes BMP signaling to specify oral fate and pattern the oral-aboral axis of the mandibular arch to ensure proper formation of jaws.
    1. Immunology and Inflammation

    Capturing change in clonal composition amongst single mouse germinal centers

    Daniel J Firl et al.
    Repeated interrogation of single germinal centers in vivo reveals a more fluid landscape than expected and unlocks new lines of investigation.
    1. Developmental Biology
    2. Physics of Living Systems

    Theoretical tool bridging cell polarities with development of robust morphologies

    Silas Boye Nissen et al.
    Biological shapes and morphological transitions can emerge from combining directed interactions between cells with apical-basal and planar cell polarity.
    1. Stem Cells and Regenerative Medicine

    Lineage tracing of genome-edited alleles reveals high fidelity axolotl limb regeneration

    Grant Parker Flowers et al.
    CRISPR-based lineage tracing in the axolotl shows that regenerated limbs are composed of the same cell lineages in the same frequencies as those that gave rise to the original limb.
    1. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    A novel SH2 recognition mechanism recruits Spt6 to the doubly phosphorylated RNA polymerase II linker at sites of transcription

    Matthew A Sdano et al.
    The tandem SH2 domains of Spt6 use novel mechanisms to bind unexpected phosphorylated serine and threonine residues in the RNA polymerase II linker to recruit Spt6 to sites of transcription and maintain repressive chromatin.