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    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Autocatalytic microtubule nucleation determines the size and mass of Xenopus laevis egg extract spindles

    Franziska Decker et al.
    Quantitative microscopy and theory show that the size of Xenopus laevis egg extract spindles is controlled by a spatially-regulated autocatalytic growth mechanism driven by microtubule-stimulated microtubule nucleation.
    1. Immunology and Inflammation
    2. Neuroscience

    CSF1R blockade induces macrophage ablation and results in mouse choroidal vascular atrophy and RPE disorganization

    Xiao Yang et al.
    Vascular degeneration of the choroid and RPE disorganization were associated with pharmacological macrophage ablation, indicating that insufficiency of macrophage function may be a mechanism underlying age- and AMD-associated pathology.
    1. Developmental Biology

    Conditional deletion of WT1 in the septum transversum mesenchyme causes congenital diaphragmatic hernia in mice

    Rita Carmona et al.
    Expression of the transcription factor Wt1 is required in a lateral mesoderm domain to develop the mesenchymal population required for the closure of the pleural cavities and the formation of the diaphragm.
    1. Developmental Biology

    Precardiac deletion of Numb and Numblike reveals renewal of cardiac progenitors

    Lincoln T Shenje et al.
    Cardiac progenitors remain undifferentiated and expansive in the second pharyngeal arch that serves as a microenvironment, and Numb and Numblike are required for their renewal.
    1. Neuroscience

    ErbB4 deletion in noradrenergic neurons in the locus coeruleus induces mania-like behavior via elevated catecholamines

    Shu-Xia Cao et al.
    Behavioral and molecular mechanistic studies elaborate the important role of ErbB4 in noradrenergic neurons associated with mania pathogenesis.
    1. Biochemistry and Chemical Biology
    2. Neuroscience

    Chemoptogenetic ablation of neuronal mitochondria in vivo with spatiotemporal precision and controllable severity

    Wenting Xie et al.
    Novel transgenic zebrafish lines allow selective ablation of neuronal mitochondria by far red light, providing a powerful tool for investigating mitochondrial homeostasis in neurons and mitochondrial mechanisms in neurological disease.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Dilation of fusion pores by crowding of SNARE proteins

    Zhenyong Wu et al.
    A few SNARE complexes suffice to fuse membranes, but many more are needed to dilate the nascent fusion pore by molecular crowding for efficient neurotransmitter or hormone release during exocytosis.
    1. Cell Biology
    2. Neuroscience

    Ablation of SNX6 leads to defects in synaptic function of CA1 pyramidal neurons and spatial memory

    Yang Niu et al.
    SNX6 regulates the distribution of a protein called Homer1b/c to distal dendrites, enabling the latter to stabilize the synapses and thereby support memory formation.
    1. Neuroscience

    Targeted deletion of AKAP7 in dentate granule cells impairs spatial discrimination

    Brian W Jones et al.
    The PKA anchoring protein, AKAP7, localizes PKA in dentate granule mossy fibers and this localization plays an important role in contextual discrimination and cAMP-induced synaptic plasticity.
    1. Neuroscience

    Deletion of Stk11 and Fos in mouse BLA projection neurons alters intrinsic excitability and impairs formation of long-term aversive memory

    David Levitan et al.
    Stk11 and Fos expression plays an important role in CTA long-term memory formation by modulating the intrinsic excitability of BLApn.