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    1. Developmental Biology

    Revised roles of ISL1 in a hES cell-based model of human heart chamber specification

    Roberto Quaranta et al.
    Loss and gain-of-function investigation uncovers a regulatory network controlling human heart chamber specification in which the cardiac precursor gene ISL1 accelerates ventricular induction and antagonizes retinoic acid-driven atrial commitment.
    1. Cell Biology
    2. Developmental Biology

    Cytokine receptor-Eb1 interaction couples cell polarity and fate during asymmetric cell division

    Cuie Chen et al.
    A separation-of-function mutation reveals that a niche ligand receptor Dome functions in spindle orientation during asymmetric stem cell division by directly binding to Eb1, independent of its role in downstream JAK-STAT signaling.
    1. Cell Biology

    Ragulator and GATOR1 complexes promote fission yeast growth by attenuating TOR complex 1 through Rag GTPases

    Kim Hou Chia et al.
    The Rag-family GTPases, known activators of TOR complex 1 (TORC1), also function as attenuator that prevents deregulated hyperactivation of TORC1 signaling.
    1. Cancer Biology
    2. Immunology and Inflammation

    Tumor initiating cells induce Cxcr4-mediated infiltration of pro-tumoral macrophages into the brain

    Kelda Chia et al.
    Pre-neoplastic cells in the brain release SDF1, which mediates an immediate infiltration of macrophages that differentiate into microglia-like cells and promote proliferation of pre-neoplastic cells.
    1. Cell Biology

    Single-cell RNA-seq reveals hidden transcriptional variation in malaria parasites

    Adam J Reid et al.
    Plasmodium parasite transcription shifts dramatically along asexual development, and transmission stages variably express important immune evasion genes, suggesting much interesting biology has until now been hidden by bulk analyses.
    1. Cancer Biology

    SPIN1 promotes tumorigenesis by blocking the uL18 (universal large ribosomal subunit protein 18)-MDM2-p53 pathway in human cancer

    Ziling Fang et al.
    SPIN1, a nucleolar protein, plays an oncogenic role by suppressing the tumor suppressor p53's function via regulation of the uL18-MDM2-p53 pathway.
    1. Neuroscience

    Early structural and functional plasticity alterations in a susceptibility period of DYT1 dystonia mouse striatum

    Marta Maltese et al.
    Structural and functional striatal synaptic plasticity abnormalities occur early in a sensitive developmental period, representing a potential unique endophenotypic traits that increase the risk of manifesting clinical symptoms in DYT1 mutation carriers.
    1. Computational and Systems Biology
    2. Microbiology and Infectious Disease

    Multiple sources of slow activity fluctuations in a bacterial chemosensory network

    Remy Colin et al.
    Single-cell FRET measurements reveal large temporal activity fluctuations within this signaling pathway in Escherichia coli, caused by stochasticity of receptor methylation combined with allosteric interactions and slow rearrangements within receptor clusters.
    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. Biochemistry and Chemical Biology
    2. Cell Biology

    Proteasome storage granules protect proteasomes from autophagic degradation upon carbon starvation

    Richard S Marshall, Richard D Vierstra
    Proteasomes are protected from autophagic elimination upon carbon starvation by sequestration into cytoplasmic storage granules, which aid cell fitness by providing a cache of proteasomes that can be rapidly remobilized when carbon availability improves.