492 results found
    1. Evolutionary Biology

    Improved use of a public good selects for the evolution of undifferentiated multicellularity

    John H Koschwanez, Kevin R Foster, Andrew W Murray
    The ability to share resources for the benefit of all members of a group may have driven ancient organisms to evolve from a unicellular to a multicellular state.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    SEC24A deficiency lowers plasma cholesterol through reduced PCSK9 secretion

    Xiao-Wei Chen, He Wang ... David Ginsburg
    COPII vesicles regulate the metabolism of cholesterol through the selective transport of secretory proteins.
    1. Structural Biology and Molecular Biophysics
    2. Neuroscience

    Native α-synuclein induces clustering of synaptic-vesicle mimics via binding to phospholipids and synaptobrevin-2/VAMP2

    Jiajie Diao, Jacqueline Burré ... Axel T Brunger
    Experiments on synthetic models of synaptic vesicles have shed new light on the role of the protein α-synuclein in the central nervous system.
    1. Developmental Biology
    2. Chromosomes and Gene Expression

    Patient-specific iPSC-derived photoreceptor precursor cells as a means to investigate retinitis pigmentosa

    Budd A Tucker, Robert F Mullins ... Edwin M Stone
    Skin cells from a patient with retinitis pigmentosa have been used to generate induced pluripotent stem cells, which could potentially form the basis of new treatments for this disease.
    1. Chromosomes and Gene Expression

    Growth hormone-releasing hormone disruption extends lifespan and regulates response to caloric restriction in mice

    Liou Y Sun, Adam Spong ... Andrzej Bartke
    Mice with a mutation that disrupts the release of growth hormone show greatly increased lifespan, which can be further increased by caloric restriction.
    1. Biochemistry and Chemical Biology
    2. Immunology and Inflammation

    Rasgrp1 mutation increases naïve T-cell CD44 expression and drives mTOR-dependent accumulation of Helios+ T cells and autoantibodies

    Stephen R Daley, Kristen M Coakley ... Jeroen P Roose
    A single point mutation in a Ras activator leads to aberrant constitutive mTOR signaling in peripheral T cells that consequently accumulate as abnormal T helper cells and stimulate the production of autoantibodies by B cells.
    1. Chromosomes and Gene Expression
    2. Neuroscience

    The splicing regulator PTBP2 controls a program of embryonic splicing required for neuronal maturation

    Qin Li, Sika Zheng ... Douglas L Black
    PTBP2 ensures that adult protein variants are expressed only in mature neurons through regulation of alternative splicing during early neuronal development.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Shugoshin biases chromosomes for biorientation through condensin recruitment to the pericentromere

    Kitty F Verzijlbergen, Olga O Nerusheva ... Adele L Marston
    Shugoshin proteins help to align chromosomes so that copies of the same chromosome attach to microtubules from opposite poles during cell division.
    1. Chromosomes and Gene Expression

    SETD2 is required for DNA double-strand break repair and activation of the p53-mediated checkpoint

    Sílvia Carvalho, Alexandra C Vítor ... Sérgio F de Almeida
    The involvement of SETD2 in an important DNA repair pathway could explain the high frequency of SETD2 mutations in several cancers and may provide an alternative mechanism to evade the p53-mediated checkpoint.
    1. Genetics and Genomics
    2. Neuroscience

    Lhx1 maintains synchrony among circadian oscillator neurons of the SCN

    Megumi Hatori, Shubhroz Gill ... Satchidananda Panda
    A transcription factor called Lhx1 coordinates the activity of the brain's master circadian clock, the suprachiasmatic nucleus, by controlling communication between its constituent cells.

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