4,173 results found
    1. Biochemistry and Chemical Biology

    Myopalladin knockout mice develop cardiac dilation and show a maladaptive response to mechanical pressure overload

    Maria Carmela Filomena et al.
    Ablation of the sarcomeric protein myopalladin (MYPN), associated with human cardiomyopathies, results in dilated cardiomyopathy, which is severely aggravated by biomechanical stress, suggesting that skeletal myopathy patients carrying MYPN loss-of-function mutations may develop cardiomyopathy under conditions of cardiac stress.
    1. Microbiology and Infectious Disease

    Pathogen clonal expansion underlies multiorgan dissemination and organ-specific outcomes during murine systemic infection

    Karthik Hullahalli, Matthew K Waldor
    During Escherichia coli systemic infection, the replication of a minuscule fraction of the inoculum drives organ-specific clearance failures, systemic dissemination, and stochastic infection outcomes.
    1. Cell Biology

    Impaired mRNA splicing and proteostasis in preadipocytes in obesity-related metabolic disease

    Julia Sánchez-Ceinos et al.
    Alternative splicing and the endoplasmic reticulum (ER)-associated protein degradation (ERAD) system represent essential, fat depot-specific components of the adipogenesis that are altered in preadipocytes from obese individuals with metabolic disease.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    The Lon protease temporally restricts polar cell differentiation events during the Caulobacter cell cycle

    Deike J Omnus et al.
    A proteomics-based approach identifies novel substrate proteins of the Lon protease in Caulobacter crescentus and reveals a critical role of Lon in regulating flagella assembly and stalk biogenesis during the cell cycle.
    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    Adult stem cells and niche cells segregate gradually from common precursors that build the adult Drosophila ovary during pupal development

    Amy Reilein et al.
    Somatic stem and niche cells in the Drosophila ovary develop from common precursors through regulated proliferative expansion, followed by acquisition of position-specific behaviors, rather than through rigid early specification events.
    1. Cancer Biology
    2. Computational and Systems Biology

    Integrated evaluation of telomerase activation and telomere maintenance across cancer cell lines

    Kevin Hu et al.
    Comprehensive analysis of telomere maintenance from transcriptomic, epigenetic, and loss-of-function profiles of cancer cell lines elucidates features of telomere regulation in cancer.
    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    Retinoic acid signaling is directly activated in cardiomyocytes and protects mouse hearts from apoptosis after myocardial infarction

    Fabio Da Silva et al.
    Lineage tracing and genetic experiments resolve a long-standing controversy by showing that retinoic acid signaling is active in cardiomyocytes, both during development and after myocardial infarction, and protects damaged hearts from apoptosis.
    1. Evolutionary Biology

    Decreased recent adaptation at human mendelian disease genes as a possible consequence of interference between advantageous and deleterious variants

    Chenlu Di et al.
    Harmful genetic variants at mendelian disease genes slow down adaptation, by interfering with the spread of adaptive variants in a population.
    1. Medicine

    Modulation of fracture healing by the transient accumulation of senescent cells

    Dominik Saul et al.
    Senescent cells accumulate in the fracture callus and a reduction in the number of these cells accelerates fracture healing in mice.
    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    Multiscale analysis reveals that diet-dependent midgut plasticity emerges from alterations in both stem cell niche coupling and enterocyte size

    Alessandro Bonfini et al.
    The nutrient composition of food alters both the size of gut epithelial cells and the ability of the stem cell niche to control tissue turnover, resulting in changes in size at the organ level.

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