255 results found
    1. Physics of Living Systems
    2. Structural Biology and Molecular Biophysics

    Nanoresolution real-time 3D orbital tracking for studying mitochondrial trafficking in vertebrate axons in vivo

    Fabian Wehnekamp et al.
    The ability to follow single objects in 3D in a living organism with high spatiotemporal resolution opens new possibilities for quantitative biophysical studies of complex systems in their physiological context.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Mitochondria supply ATP to the ER through a mechanism antagonized by cytosolic Ca2+

    Jing Yong et al.
    ATP enters the endoplasmic reticulum (ER) lumen through an SLC35B1/AXER-dependentCaATiER mechanism, and ATP usage in the ER renders 'anti-Warburg' effect by increasing ATP regeneration from OxPhos while decreasing glycolysis.
    1. Microbiology and Infectious Disease

    An aspartyl protease defines a novel pathway for export of Toxoplasma proteins into the host cell

    Michael J Coffey et al.
    The Toxoplasma parasite requires an enzyme called ASP5 to cleave proteins for export into host cells.
    1. Cell Biology

    Brain-specific Drp1 regulates postsynaptic endocytosis and dendrite formation independently of mitochondrial division

    Kie Itoh et al.
    Genetic and cell biological analyses reveal a new role of Drp1 in postsynaptic endocytosis during brain development beyond mitochondrial division GTPase.
    1. Cell Biology
    2. Developmental Biology

    Genetic screen in Drosophila muscle identifies autophagy-mediated T-tubule remodeling and a Rab2 role in autophagy

    Naonobu Fujita et al.
    Analyses of a developmentally regulated Drosophila myofiber remodeling program provide insight into induced autophagy required for T-tubule membrane reorganization, and uncover a conserved Rab2 role in autophagosome-lysosome fusion.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Mechanical force induces mitochondrial fission

    Sebastian Carsten Johannes Helle et al.
    Mechanically stimulating mitochondria causes them to divide via the recruitment of the mitochondrial fission machinery to the mechanically strained site, showing that intracellular organelles can be mechanoresponsive.
    1. Cell Biology
    2. Neuroscience

    Dendritic mitochondria reach stable positions during circuit development

    Michelle C Faits et al.
    Mitochondria reach stable positions in dendrites during a critical developmental period of high motility.
    1. Cell Biology

    A bioactive peptide amidating enzyme is required for ciliogenesis

    Dhivya Kumar et al.
    Analysis of Chlamydomonas, planaria and mice reveals a novel and unanticipated role for a peptide amidating enzyme in primary and motile ciliary assembly through effects on post-Golgi trafficking.
    1. Neuroscience

    Multivesicular bodies mediate long-range retrograde NGF-TrkA signaling

    Mengchen Ye et al.
    Multivesicular bodies deliver long-range retrograde nerve growth factor (NGF) signals and serve as essential signaling and sorting platforms in the cell soma, and multivesicular body (MVB) cargoes dictate their vesicular fate.
    1. Developmental Biology

    Endothelial EphB4 maintains vascular integrity and transport function in adult heart

    Guillermo Luxán et al.
    EphB4 maintains critical functional properties of the adult cardiac vasculature, namely mechanical resistance and fatty acid transport capability, and thereby prevents dilated cardiomyopathy-like defects.

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