1,894 results found
    1. Cell Biology

    Evidence that a positive feedback loop drives centrosome maturation in fly embryos

    Ines Alvarez-Rodrigo et al.
    Polo kinase recruitment by the protein Spd-2 to the pericentriolar scaffold is a key element of the positive feedback loop which drives the expansion of the mitotic centrosomes in flies.
    1. Cell Biology
    2. Stem Cells and Regenerative Medicine

    A feedback amplification loop between stem cells and their progeny promotes tissue regeneration and tumorigenesis

    Jun Chen et al.
    A newly discovered feedback amplification loop between stem cells and their immediate daughter progenitor cells drives epithelial regeneration and tumor development.
    1. Neuroscience

    A circuit-dependent ROS feedback loop mediates glutamate excitotoxicity to sculpt the Drosophila motor system

    Jhan-Jie Peng et al.
    Glutamate excitotoxicity induces a circuit-dependent ROS feedback loop to alter motor system integrity.
    1. Cell Biology
    2. Neuroscience

    A feedback loop governs the relationship between lipid metabolism and longevity

    Nicole K Littlejohn et al.
    The dual control of adiposity and longevity emerges from a latent intestinal feedback loop which simultaneously augments fat loss and shields lifespan from the deleterious effects of continuous fat oxidation.
    1. Cell Biology

    A microRNA negative feedback loop downregulates vesicle transport and inhibits fear memory

    Rebecca S Mathew et al.
    A fear conditioning-induced miRNA acts in a negative feedback loop that targets vesicle exocytosis and neurotransmitter receptor trafficking, and inhibits memory formation.
    1. Biochemistry and Chemical Biology
    2. Computational and Systems Biology

    Hsf1 and Hsp70 constitute a two-component feedback loop that regulates the yeast heat shock response

    Joanna Krakowiak et al.
    Dynamic regulation of the heat shock response depends on a negative feedback loop in which Hsf1 activates expression of Hsp70 and Hsp70 specifically and directly represses Hsf1 transactivation.
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    An analog to digital converter controls bistable transfer competence development of a widespread bacterial integrative and conjugative element

    Nicolas Carraro et al.
    A new multistep hierarchical cascade controls activation of an integrative and conjugative element in a small subpopulation of cells in its bacterial host, yielding proficient DNA transferring cells.
    1. Cancer Biology
    2. Cell Biology

    A positive feedback loop between Myc and aerobic glycolysis sustains tumor growth in a Drosophila tumor model

    Kenneth Kin Lam Wong et al.
    Specific molecular links that orchestrate growth signals and metabolic reprogramming to achieve tumorigenesis are identified as potential metabolic vulnerabilities in cancer treatment.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Polo-like kinase-dependent phosphorylation of the synaptonemal complex protein SYP-4 regulates double-strand break formation through a negative feedback loop.

    Saravanapriah Nadarajan et al.
    PLK-1/2-mediated SYP-4 phosphorylation is dependent on crossover precursor formation, triggering a switch in the dynamic state of the synaptonemal complex that reduces the formation of further double-strand breaks at late meiotic prophase.
    1. Genetics and Genomics

    A feedback loop between nonsense-mediated decay and the retrogene DUX4 in facioscapulohumeral muscular dystrophy

    Qing Feng et al.
    Expression of the disease gene DUX4 inhibits RNA quality control in skeletal muscle, thereby stabilizing thousands of aberrant RNAs, including its own transcript.

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