2,682 results found
    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. Cancer Biology

    Tumor-promoting function of apoptotic caspases by an amplification loop involving ROS, macrophages and JNK in Drosophila

    Ernesto Pérez et al.
    The oncogenic RasV12 keeps cells mutant for the tumor suppressor scribble in an undead-like condition, which is required for an amplification loop that promotes tumorigenesis.
    1. Ecology
    2. Epidemiology and Global Health

    Ecological multiplex interactions determine the role of species for parasite spread amplification

    Massimo Stella et al.
    Predators may amplify multiple-host parasite spreading in systems with multiple transmission routes.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Mutations that improve efficiency of a weak-link enzyme are rare compared to adaptive mutations elsewhere in the genome

    Andrew B Morgenthaler et al.
    Mutations elsewhere in the genome play critical roles in improving fitness during amplification and divergence of a gene encoding a weak-link enzyme whose inefficiency limits growth rate.
    1. Chromosomes and Gene Expression
    2. Developmental Biology

    Amplification of a broad transcriptional program by a common factor triggers the meiotic cell cycle in mice

    Mina L Kojima et al.
    The switch from mitotic cell cycles to the one meiotic cell cycle in each generation is triggered through dramatic upregulation of a broad gene expression program by transcriptional regulator STRA8.
    1. Cancer Biology
    2. Computational and Systems Biology

    Dissecting transcriptional amplification by MYC

    Zuqin Nie et al.
    Synthetic biology experiments show that MYC is a general transcription amplifier acting at two or more sites in the transcription-cycle and that MYC-turnover contributes to its activity.
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    Expandable and reversible copy number amplification drives rapid adaptation to antifungal drugs

    Robert T Todd, Anna Selmecki
    Novel segmental chromosome amplifications in Candida albicans provide rapid adaptation to the most widely used antifungal drugs.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Homology sensing via non-linear amplification of sequence-dependent pausing by RecQ helicase

    Yeonee Seol et al.
    The rate of DNA unwinding by RecQ helicases is dramatically modulated by the DNA duplex stability in a geometry-dependent manner, providing an intrinsic mechanism for suppressing illegitimate recombination.
    1. Neuroscience

    Attentional amplification of neural codes for number independent of other quantities along the dorsal visual stream

    Elisa Castaldi et al.
    The representations of information concerning the number, size, density and surface of sets of objects in a visual image are separable along the occipito-parietal cortex and independently modulated by attention.

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