631 results found
  1. December 2014

    Episode 16: December 2014

    In this episode we hear about reproducibility, drug resistance, cells without walls, gene transfer, interspecies signalling, and stem cells.
    1. Developmental Biology
    2. Evolutionary Biology

    Two consecutive microtubule-based epithelial seaming events mediate dorsal closure in the scuttle fly Megaselia abdita

    Juan Jose Fraire-Zamora et al.
    Evolutionary reduction in tissue number involves the simplification of the seaming process but not signaling during epithelial fusion.
    1. Computational and Systems Biology
    2. Neuroscience

    Microsaccadic sampling of moving image information provides Drosophila hyperacute vision

    Mikko Juusola et al.
    New experiments and theory reveal how the ability to see image details depends upon photoreceptor function and eye movements, and how fruit flies (Drosophila) see spatial details beyond the optical limit of their compound eyes.
    1. Genetics and Genomics

    Firefly genomes illuminate parallel origins of bioluminescence in beetles

    Timothy R Fallon et al.
    The first genomic view of beetle luciferase evolution indicates evolutionary independence of luciferase between fireflies and click-beetles, and provide valuable datasets which will accelerate the discovery of new biotechnological tools.
    1. Evolutionary Biology

    Membranes, energetics, and evolution across the prokaryote-eukaryote divide

    Michael Lynch, Georgi K Marinov
    The common view that the mitochondrion endowed eukaryotes with a boost in bioenergetic capacity above that in prokaryotes is inconsistent with a diversity of cellular features.
    1. Neuroscience

    Murine Fam65b forms ring-like structures at the base of stereocilia critical for mechanosensory hair cell function

    Bo Zhao et al.
    Super-resolution microscopy reveals a highly organized compartment in the stereocilia of mechanosensory hair cells of the inner ear, which is critical for hair cell function and affected in disease.
    1. Human Biology and Medicine

    KRAS-dependent sorting of miRNA to exosomes

    Diana J Cha et al.
    In isogenically matched colorectal cancer (CRC) cell lines, mutant KRAS alters the composition of secreted miRNAs in extracellular vesicles that can then transfer repressive activity to wild type cells.
    1. Cancer Biology
    2. Cell Biology

    Bim escapes displacement by BH3-mimetic anti-cancer drugs by double-bolt locking both Bcl-XL and Bcl-2

    Qian Liu et al.
    The pro-apoptotic BH3-protein Bim contains two distinct binding sites for anti-apoptotic proteins that together confer resistance of Bim/Bcl-2 and Bim/Bcl-XL complexes to BH3-mimetic drugs under development for use in humans.
    1. Structural Biology and Molecular Biophysics

    Structure of the human volume regulated anion channel

    Jennifer M Kefauver et al.
    The homomeric structure of human SWELL1 (LRRC8A) provides insights into properties of a novel chloride channel family.
    1. Cell Biology
    2. Developmental Biology

    Cleavage activates Dispatched for Sonic Hedgehog ligand release

    Daniel P Stewart et al.
    Dispatched cleavage, mediated by Furin, regulates Dispatched membrane trafficking and release of Sonic Hedgehog ligand.

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