63 results found
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Disrupting the ciliary gradient of active Arl3 affects rod photoreceptor nuclear migration

    Amanda M Travis, Samiya Manocha ... Jillian N Pearring
    Dominant mutations in Arl3, linked to inherited retinal dystrophy, disrupt the active Arl3-GTP ciliary gradient and cause a defect in rod photoreceptor nuclear migration that can be rescued by elevating ciliary Arl3 activity or reducing aberrant non-ciliary Arl3 activity.
    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    Endothelial cell signature in muscle stem cells validated by VEGFA-FLT1-AKT1 axis promoting survival of muscle stem cell

    Mayank Verma, Yoko Asakura ... Atsushi Asakura
    Bulk and single-cell RNA-seq data demonstrated that muscle stem cells express low levels of canonical endothelial cell markers, including VEGFA receptors, and VEGFA-FLT1 pathway has a drastic effect on muscle stem cell survival through AKT1 in vitro and in vivo.
    1. Neuroscience

    Disturbed retinoid metabolism upon loss of rlbp1a impairs cone function and leads to subretinal lipid deposits and photoreceptor degeneration in the zebrafish retina

    Domino K Schlegel, Srinivasagan Ramkumar ... Stephan CF Neuhauss
    The retinoid-binding protein RLBP1 in the retinal pigment epithelium is crucially involved in cone photoreceptor visual pigment recycling and mimics the human eye disease with retinal lipid deposits when mutated.
    1. Neuroscience

    Inhibitory CCK+ basket synapse defects in mouse models of dystroglycanopathy

    Jennifer N Jahncke, Daniel S Miller ... Kevin M Wright
    Loss of functional dystroglycan disrupts the formation and function of CCK+/CB1R+ inhibitory synapses in hippocampal CA1, resulting in reduced seizure thresholds in mouse models of dystroglycanopathy.
    1. Developmental Biology

    Absence of CEP78 causes photoreceptor and sperm flagella impairments in mice and a human individual

    Tianyu Zhu, Yuxin Zhang ... Chen Zhao
    Study of human, knockout mice, and in-vitro models revealed CEP78 absence is the genetical cause of cone-rod dystrophy and male infertility with multiple morphological abnormalities of sperm flagella, CEP78 interacted with IFT20 and TTC21A to modulate cilliogenesis and centriole length.
    1. Structural Biology and Molecular Biophysics

    Patient-specific mutations impair BESTROPHIN1’s essential role in mediating Ca2+-dependent Cl- currents in human RPE

    Yao Li, Yu Zhang ... Tingting Yang
    A multidisciplinary platform featured by patient-derived RPEs is established to study the disease-causing mechanisms of BEST1 mutations, and demonstrates gene-supplemented rescue of the mutation-caused deficiency in Ca2+-dependent Cl- current in human RPE.
    1. Neuroscience

    Small molecule Photoregulin3 prevents retinal degeneration in the RhoP23H mouse model of retinitis pigmentosa

    Paul A Nakamura, Andy A Shimchuk ... Thomas A Reh
    Regulating rod gene expression with a small molecule ligand for the orphan nuclear receptor Nr2e3 rescues photoreceptors from degeneration in a mouse model of retinitis pigmentosa.
    1. Medicine
    2. Neuroscience

    Txnip deletions and missense alleles prolong the survival of cones in a retinitis pigmentosa mouse model

    Yunlu Xue, Yimin Zhou, Constance L Cepko
    Multiple alleles of Txnip, which can interact with several different proteins, including Hsp90AB1, were tested for their ability to prolong the survival of cone photoreceptors in diseases leading to blindness.
    1. Genetics and Genomics
    2. Neuroscience

    Missense mutations in CRX homeodomain cause dominant retinopathies through two distinct mechanisms

    Yiqiao Zheng, Chi Sun ... Shiming Chen
    The integrated analysis of multi-omics and functional evidence both in vitro and in knock-in mouse models reveal novel gain-of-function pathogenic mechanisms of dominant CRX HD missense mutations.
    1. Cell Biology
    2. Neuroscience

    Hypoxia-induced metabolic stress in retinal pigment epithelial cells is sufficient to induce photoreceptor degeneration

    Toshihide Kurihara, Peter D Westenskow ... Martin Friedlander
    Mouse models in which hypoxia can be genetically triggered in retinal pigmented epithelial cells show that hypoxia-induced metabolic stress alone can lead to photoreceptor atrophy/dysfunction.

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