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    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    Stem cell niche exit in C. elegans via orientation and segregation of daughter cells by a cryptic cell outside the niche

    Kacy L Gordon et al.
    A previously undetected dynamic cell structure orients the mitotic spindle of germ stem cells and grows over one daughter cell, thus helping to balance niche retention with niche exit.
    1. Neuroscience

    Neurexin directs partner-specific synaptic connectivity in C. elegans

    Alison Philbrook et al.
    Investigation of synapse development using a single neuron system illuminates how individual neurons specify connectivity with their postsynaptic partners and the central role of the synaptic organizer neurexin in this process.
    1. Physics of Living Systems

    Plasticity of cell migration resulting from mechanochemical coupling

    Yuansheng Cao et al.
    Computational and experimental studies show that different migration modes of eukaryotic cells are the result of the interplay between signaling waves and cell mechanics.
    1. Developmental Biology

    Apical contacts stemming from incomplete delamination guide progenitor cell allocation through a dragging mechanism

    Eduardo Pulgar et al.
    Incomplete delamination serves as a cellular platform for coordinated tissue movements during development, guiding newly formed progenitor cell groups to the differentiation site.
    1. Cell Biology

    RalB directly triggers invasion downstream Ras by mobilizing the Wave complex

    Giulia Zago et al.
    By moving from correlations to causality in cancer signal transduction using optogenetics, the sufficiency of RalB activation to trigger invasion and the underlying molecular mechanisms were established.
    1. Developmental Biology

    Dynamic filopodia are required for chemokine-dependent intracellular polarization during guided cell migration in vivo

    Dana Meyen et al.
    Functional analysis of filopodia by specific interference with their formation and distribution reveals a critical role in conferring intracellular polarity and in controlling the dynamic properties of chemokine-guided cell migration in vivo.
    1. Cell Biology

    Dynamic recruitment of the curvature-sensitive protein ArhGAP44 to nanoscale membrane deformations limits exploratory filopodia initiation in neurons

    Milos Galic et al.
    Local inward plasma membrane deformations caused by actomyosin-dependent contraction trigger the dynamic recruitment of a curvature-sensitive actin-regulatory protein, which represents a receptor-independent auto-regulatory mechanism to control local actin polymerization dynamics at the plasma membrane.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Listeria monocytogenes cell-to-cell spread in epithelia is heterogeneous and dominated by rare pioneer bacteria

    Fabian E Ortega et al.
    The pathogenic bacterium Listeria monocytogenes spreads infection using a two-tiered strategy, where most bacteria spread locally but a few 'pioneers' move further, increasing the likelihood of a persistent infection.
    1. Developmental Biology

    Emx2 regulates hair cell rearrangement but not positional identity within neuromasts

    Sho Ohta et al.
    Emx2 is not required for sibling HCs to acquire their designated locations within the neuromast, inferring that Emx2 mediates opposite HC orientation by changing location of hair bundle establishment.
    1. Cell Biology

    Control of endothelial cell polarity and sprouting angiogenesis by non-centrosomal microtubules

    Maud Martin et al.
    Non-centrosomal microtubules are required for endothelial polarization and sprouting, while centrosomally anchored microtubule arrays are both dispensable and insufficient for these processes.