3,245 results found
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Pharmacological dimerization and activation of the exchange factor eIF2B antagonizes the integrated stress response

    Carmela Sidrauski et al.
    A drug-like molecule called ISRIB, which activates the translation initiation factor eIF2B, antagonizes stress responses as diverse as protein misfolding and nutrient deprivation, and restores protein synthesis, enhancing memory.
    1. Cell Biology

    The proteasome biogenesis regulator Rpn4 cooperates with the unfolded protein response to promote ER stress resistance

    Rolf M Schmidt et al.
    Endoplasmic reticulum stress in yeast activates not only the UPR but also Rpn4, promoting the clearance of misfolded proteins from the cytosol as part of a modular cross-compartment stress response.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Quantitative H2S-mediated protein sulfhydration reveals metabolic reprogramming during the integrated stress response

    Xing-Huang Gao et al.
    ATF4, the master regulator of transcription during the Integrated Stress Response (ISR), causes global changes in cysteine sulfhydration of proteins and this event causes cellular metabolic reprogramming.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Actin dynamics tune the integrated stress response by regulating eukaryotic initiation factor 2α dephosphorylation

    Joseph E Chambers et al.
    Monomeric actin forms a crucial component of the eIF2α holophosphatase linking the integrated stress response to actin polymeric status.
    1. Developmental Biology

    Inhibiting the integrated stress response pathway prevents aberrant chondrocyte differentiation thereby alleviating chondrodysplasia

    Cheng Wang et al.
    Integrated stress response-induced expression of ATF4 and its transactivation of SOX9 causes aberrant chondrocyte differentiation and skeletal defects which can be alleviated by modulating initiation-factor eIF2α phosphorylation translation control.
    1. Computational and Systems Biology
    2. Genetics and Genomics

    New insights into the cellular temporal response to proteostatic stress

    Justin Rendleman et al.
    A time-resolved analysis of protein and RNA concentrations and interactions during proteostasis stress highlights the dominant role of translation regulation and a shift of energy metabolism.
    1. Chromosomes and Gene Expression
    2. Computational and Systems Biology

    TASEP modelling provides a parsimonious explanation for the ability of a single uORF to derepress translation during the integrated stress response

    Dmitry E Andreev et al.
    A model reveals how translation of an mRNA leader could provide resistance to global downregulation of translation.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Cap-proximal nucleotides via differential eIF4E binding and alternative promoter usage mediate translational response to energy stress

    Ana Tamarkin-Ben-Harush et al.
    Differential eIF4E binding to transcription initiation nucleotides and alternative promoter usage of eIF1A, PABP and other genes are involved in the response of the translation machinery to energy stress.
    1. Biochemistry and Chemical Biology

    Translation attenuation by minocycline enhances longevity and proteostasis in old post-stress-responsive organisms

    Gregory M Solis et al.
    Directly targeting the ribosome to attenuate translation partly mimics the integrated stress response, increasing lifespan and preserving protein folding capacity even in older individuals with dysfunctional stress response signaling.
    1. Neuroscience

    The effects of psychosocial stress on dopaminergic function and the acute stress response

    Michael AP Bloomfield et al.
    Imaging and laboratory-induced psychosocial stress showed that exposure to psychosocial adversity was associated with dampened striatal dopaminergic function alongside blunted physiological yet potentiated subjective responses to acute stress.

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